ESAS-Reviewer-Objectives PDF

lOMoARcPSD|42284842 ESAS-Reviewer-Objectives Electrical Engineering (Bulacan State University) Scan to open on Studocu Studocu is not sponsored or endorsed by any college or university Downloaded by Elonah Joan Casas ([email protected]) ...

lOMoARcPSD|42284842 ESAS-Reviewer-Objectives Electrical Engineering (Bulacan State University) Scan to open on Studocu Studocu is not sponsored or endorsed by any college or university Downloaded by Elonah Joan Casas ([email protected])  lOMoARcPSD|42284842 Engineering Science and Allied Subjects Which of the following stresses has an area perpendicular to the force? A. Normal stress B. Shear stress What is the moment of inertia of a circle of radius r? C. Flexural stress A. πr /16 4 D. Torsional stress B. πr /2 4 C. πr /64 4 D. πr /4 4 Which of the following type of loadings does fatigue occurs? A. Plane load The moment of inertia of the circle with respect to its centroidal B. Static load moment of inertia. C. Moving load A. 2 D. Repeated load B. 3 C. 4 It is a quantity which measures the resistance of the mass to D. 5 being revolved about the line. A. Modulus of elasticity The moment of inertia of a rectangle with respect to the base B. Strain is___ times its moment of inertia with respect to the centroid. C. Stress A. 2 D. Moment of inertia B. 3 C. 4 The change in length per degree rise in temperature. D. 5 A. Volume expansivity B. Ideal gas temperature What is the mass moment of inertia of a sphere of mass m and C. Linear expansivity radius r? D. Temperature scale 2 A. ½ mr 2 B. ¼mr Which of the following refers to the stress at failure? 2 C. 1/3 mr A. Working stress 2 D. 2/5 mr B. Allowable stress C. Rupture strength Given a cylinder of radius r, altitude h and mass m. What is its D. Ultimate strength mass moment of inertia? 2 A. ½ mr If a load is applied through the centroid of a tension or 2 B. 1/3 mr compression member’s section, what type of loading is it? 2 C. ¼ mr A. Local loading 2 D. 2/5 mr B. Neutral loading C. Eccentric loading A structure is called _____ if at least one of its individual member D. Axial loading is a multiforce member. A. Truss Which of the following refers to the ratio of the unit lateral B. Frame deformation to the unit longitudinal deformation? C. Three-hinged arch A. Mohr’s ratio D. Bridge B. Young’s ratio C. Poisson ratio Is the change in shape of any materials when subjected to the D. Slenderness ratio action of a force. A. Moment of inertia What is the ratio of stress to strain below the proportional limit? B. Modulus of elasticity A. Poisson ratio C. Strain B. Young’s ratio D. Stress C. Hooke’s constant D. Modulus of rigidity Which of the following forces can a roller support hold? A. Only horizontal forces In the linear elastic region of the stress-strain diagram, what do B. Both horizontal and vertical forces simultaneously you call the slope of the curve? C. Only vertical forces A. Elastic limit D. Either vertical or horizontal forces but not both B. Modulus of elasticity C. Ultimate strength Which of the following laws expressed relation between stress D. Proportional limit and strain? A. Poisson’s law In bending of a rectangular beam due to axial loading, where is B. Newton’s law the location of maximum shear stress? C. Young’s law A. At the top edge D. Hooke’s law B. At the bottom edge C. At the neutral axis What do you call the inelastic (plastic) failure of the beam? D. At the location between the top edge and the neutral A. Moment axis B. Rotation C. Buckling To prevent translation while permitting rotation, a structure must D. Crippling be added with: A. Rivert What loading occurs when the load is not applied through the B. Bearing centroid? C. Hinge A. Axial loading D. Roller B. Local loading C. Neutral loading What is the smallest part of a compound that still retains the D. Eccentric loading properties of that compound? A. Alloy B. Element C. Molecule D. Unit cell Downloaded by Elonah Joan Casas ([email protected])  lOMoARcPSD|42284842 When a solid has a crystalline structure, the atoms arranged in The greatest stress which a material is capable of withstanding repeating structures called ______. without a deviation from acceptable of stress to strain is called A. Lattice _____. B. Unit cell A. Elongation C. Crystal B. Proportional limit D. Domain C. Yield point D. Elastic limit What type of bonding refers to the sharing of electrons? What is the maximum stress below which a material can A. Covalent bonding theoretically endure an infinite number of stress cycles? B. Van der waals bonding A. Endurance state C. Metallic bonding B. Endurance test D. Ionic bonding C. Endurance limit D. Endurance strength What refers to a crystal imperfection characterized by regions of severe atomic misfit where atoms are not properly surrounded by What is a substance that attracts piece of iron? neighbor atoms? A. Conductor A. Discrystallization B. Semiconductor B. Dislocation C. Magnet C. Slip step D. All of the choices D. Dispertion Which of the following is a natural magnet? What do you call metals reinforced by ceramics or other A. Steel materials, usually in fiber form? B. Magnesia A. Metalloids C. Lodestone B. Matrix alloys D. Soft iron C. Metal lattices D. Metal matrix composites Which of the following materials has permeability slightly less than that of free space? What is the usual valence of nonmetallic elements? A. Paramagnetic materials A. 5 B. Non-magnetic materials B. 6 C. Ferromagnetic materials C. 7 D. Diamagnetic materials D. All of the choices What materials has permeabilities slighter than that of free What mechanical property of a material refers to the nominal space? stress at fracture in a tension test at constant load and constant A. Paramagnetic materials temperature? B. Non-magnetic materials A. Creep strength C. Ferromagnetic materials B. Stress rupture strength D. Diamagnetic materials C. Compressive yield strength D. Hardness Which of the following materials have very high permeabilities? A. Paramagnetic materials What mechanical property of a material refers to the resistance to B. Non-magnetic materials plastic deformation? C. Ferromagnetic materials A. Rigidity D. Diamagnetic materials B. Plasticity C. Ductility A large molecule with two alternating mers is known as? D. Hardness A. monomer B. elastomer What typical penetrator is used in Brinell hardness test? C. mers A. 10 mm ball D. copolymer or interpolymer o B. 120 diamond (brale) C. 1.6 mm diameter ball What group of steels are water-hardened tool steels? o D. 20 needle A. Group S B. Group W What parameter is defined as the temperature at which the C. Group O toughness of the material drops below some predetermined D. Group T value, usually 15 ft-lb? A. Nil ductility temperature What group of steels are molybdenum high-speed steels? B. Curie temperature A. Group A C. Thermal conductivity B. Group D D. Heat distortion temperature C. Group M D. Group H What is obtained by repeatedly loading a specimen at given stress levels until it fails? Steels that are used for axles, gears, and similar parts requiring A. Elastic limit medium to high hardness and high strength are known as? B. Endurance limit or fatigue strength of material A. Medium-carbon steel C. Creep B. Low-carbon steel D. All of the choices C. Very high-carbon steel D. High-carbon steel What dimensional property of a material refers to the deviation from edge straightness? Low-quality steels with an M suffix on the designation intended A. Lay for nonstructural application is classified as ______. B. Out of flat A. Merchant quality C. Camber B. Commercial quality D. Waviness C. Drawing quality D. Special quality Downloaded by Elonah Joan Casas ([email protected])  lOMoARcPSD|42284842 The use of acids to remove oxides and scale on hot worked What is the scaling off of a surface in flakes or layers as the steels is known as ______. result of corrosion? A. Tempering A. Expoliation B. Pickling B. Corrosion Fatigue C. Machining C. Scaping D. Galvanizing D. Fretting The purpose of molybdenum in steel alloying is to? What corrosion occurs under organic coatings on metals as fine, A. Increase brittleness wavy hairlines? B. Increase dynamic and high-temperature strength A. Stray current corrosion and hardness B. Microbiological corrosion C. reduce brittleness, combine with sulfur C. Filiform corrosion D. increase corrosion and resistance D. Fretting corrosion Indicate the false statement. What refers to the deterioration of material by oscillatory relative A. About 10% of the earth’s crust is iron. motion of small amplitude (20 to 100 µm) between two solid B. Pure iron does not have significant industrial use surfaces in a corrosive environment? because it is too weak and soft. A. Stray current corrosion C. Steel is an alloy of carbon and iron with limits on the B. Microbiological corrosion amount of carbon (less than 2%) C. Filiform corrosion D. Steel is made by reducing oxide ore of iron by D. Fretting corrosion thermochemical reactions in a blast furnace or direct reduction vessel. Indicate the false statement about corrosion. A. Plastics and ceramics are immune to many forms of What does AISI stands for? corrosion because they are not good conductors of A. Asian Institute of Steel Industries electricity. B. American Institute of Steel Industries B. The corroded member in a corrosion cell is the C. Association of Iron and Steel Industries cathode. D. American Iron and Steel Institute C. Passivity is a prerequisite for the corrosion protection of many metals What does SAE stands for? D. Corrosion of metals is usually electrochemical in nature. A. Society of Automotive Engineers B. Society of American Engineers Steel is an alloy of iron and carbon with limits on the amount of C. Society of Architects and Engineers carbon to less than ______ percent. D. Society of Alloy Engineers A. 2 B. 3 The following statements are true except one. Which one? C. 4 A. Carburizing does not harden a steel D. 1% to 5% B. Flame and induction hardening require the use of hardenable steels. What refers to the application of any process whereby the C. Quench-hardened steel does not require tempering surface of steel is altered so that it will become hard? to prevent brittleness. A. Carburizing D. Induction hardening is usually most efficient on small B. Casehardening parts. C. Annealing D. Surface hardening Which of the following is a requirement for hardening a steel? A. Heating to the proper temperature What refers to the ability of steel to be hardened through to its B. Sufficient carbon content center in large section? C. Adequate quench A. Malleability D. All of the choices B. Hardenability C. Spheroidability What field of study encompasses the procurement and D. Rigidity production of metals? A. Metallurgy What is the equilibrium temperature of transformation of B. Geology austenite to pearlite? o C. Material Science A. 1000 F o D. Metalgraphy B. 1333 F o C. 1666 F o What do you call earth and stone missed with the iron oxides? D. 1222 F A. Hematite B. Magnetite What structure is formed when transformation occurs at C. Gangue temperatures down to the knee of the curve? D. Ore A. Pearlite B. Bainite What is a coal that has been previously burned in an oxygen- C. Austenite poor environment? D. Martensite A. Tuyere B. Coke What allotropic form of iron refers to iron that has a temperature o C. Diamond range of room temperature to 1670 F? D. Hematite A. Beta iron B. Gamma iron What is the most common alloying ingredient in copper? C. Delta iron A. Brass D. Alpha iron B. Zinc C. Nickle The alpha iron will become paramagnetic at temperature above D. Aluminum _____. o A. 770 C o What do you call the removal of zinc from brasses? B. 550 C o A. Dezincification C. 660 C o B. Graphitization D. 440 C C. Stabilization D. Dealloying Downloaded by Elonah Joan Casas ([email protected])  lOMoARcPSD|42284842 What is the effect to aluminum with iron as the alloying element? What is formed when acids will react with active metals? A. Reduce hot-cracking tendencies in casting A. Sulfur B. Improve conductivity B. Oxygen C. Lowers castability C. Hydrogen D. Improves machinability D. Chloride What is the effect to aluminum with copper as alloying element? How much is the pH content of an acid? A. Increases strength up to about 12 % A. Between 4 and 6 B. Reduces shrinkage B. Between 2 and 7 C. Improves machinability C. Between 1 and 5 D. Increases fluidity in casting D. Between 0 and 7 Which of the following are two well-known nickel alloys with The condition of a liquid electrolyte is measured in terms of its: magnetic properties ideal for permanent magnets? A. Specific gravity A. Invar and Nilvar B. Acid content B. Nichrome and Constantan C. Voltage output C. Elinvar and Invar D. Current value D. Alnico and Cunife What is a substance that speeds up a chemical reaction without The Portland cement is manufacture from the dollowing elements itself undergoing a chemical change? except: A. Ingredients A. Lime B. Reactants B. Silica C. Solvent C. Alumina D. Catalyst D. Asphalt How are elements numbered 90 to 103 in the periodic table What gives the average ratio of stress to strain for materials called? operating in the nonlinear region in the stress-strain diagram? A. Alkali A. Modulus of elasticity B. Actinons B. Proportionality limit C. Earth metals C. Secant modulus D. Transition elements D. Tangent modulus What Is defined as a value equal to the number of gram moles of What is the ratio of the ultimate failure strain to the yielding solute per 1000 grams of solvent? strain? A. Molality A. Poisson’s ratio B. Normality B. Ductility C. Molarity C. Resilience D. Formality D. Fatigue Which of the following is NOT a part of a atom? What do you call materials that do not conduct electric current? A. Electron A. Conductor B. Proton B. Insulator C. Neutron C. Semi-conductor D. Coulomb D. Intrinsic material It is the number of protons in the nucleus of an atom. What element is known as the lightest metal? A. Molecular number A. Aluminum B. Proton number B. Manganese C. Mass number C. Magnesium D. Atomic number D. Lithium What do you call the elements in the first two groups in the Which of the following is energy removal being applied? periodic table? A. Evaporation of water A. Light metals B. Changing water to stream B. Noble gas C. Changing water to ice C. Non-metals D. All of these D. Heavy metals Halogens falls under what group in the periodic table? Which one refers to the number of gram-moles of solute per liter A. Group VIA of solution? B. Group VA A. Molality C. Group IVA B. Normality D. Group VIIA C. Molarity D. Formality Which of the following is added to the drinking water distribution system for disinfection? What type of bonding is electrostatic attraction most A. Soda ash predominant? B. Chlorine A. Ionic C. Lime B. Metallic D. Iodine C. Covalent D. Van der waals What refers to the number of gram equivalent weights of solute per liter of solution? When the charge of an atom becomes unbalanced, the charge A. Molality atom is called _______. B. Normality A. An ion C. Molarity B. A neutron D. Formality C. A proton D. An electron Is the attraction between like molecules. A. Absorption B. Diffusion C. Adhesion D. Cohesion Downloaded by Elonah Joan Casas ([email protected])  lOMoARcPSD|42284842 Which of the following type of reactions in which bonds within a compound are disrupted by heat or other energy to produce Which of the following type of loadings does fatigue occurs? simpler compounds or elements? A. Plane load A. Direct combination or synthesis B. Static load B. Decomposition or analysis C. Moving load C. Single displacement D. Repeated load D. Double displacement Which of the following refers to the stress at failure? A pair of electrical conductors of dissimilar materials so joined as A. Working stress to produce a thermal emf when the junctions are of different B. Allowable stress temperatures. C. Rupture strength A. Potentiometer D. Ultimate strength B. Piezoelectric C. Thermocouple If a load is applied through the centroid of a tension or D. Solar heating compression member’s section, what type of loading is it? A. Local loading The moment of inertia of the circle with respect to its centroidal B. Neutral loading moment of inertia. C Eccentric loading A. 2 D. Axial loading B. 3 C. 4 Which of the following refers to the ratio of the unit lateral D. 5 deformation to the unit longitudinal deformation? A. Mohr’s ratio The moment of inertia of a rectangle with respect to the base B. Young’s ratio is___ times its moment of inertia with respect to the centroid. C. Poisson ratio A. 2 D. Slenderness ratio B. 3 C. 4 What is the ratio of stress to strain below the proportional limit? D. 5 A. Poisson ratio B. Young’s ratio What is the mass moment of inertia of a sphere of mass m and C. Hooke’s constant radius r? D. Modulus of rigidity 2 A. ½ mr 2 B. ¼mr In the linear elastic region of the stress-strain diagram, what do 2 C. 1/3 mr you call the slope of the curve? 2 D. 2/5 mr A. Elastic limit B. Modulus of elasticity A structure is called _____ if at least one of its individual member C. Ultimate strength is a multiforce member. D. Proportional limit A. Truss B. Frame In bending of a rectangular beam due to axial loading, where is C. Three-hinged arch the location of maximum shear stress? D. Bridge A. At the top edge B. At the bottom edge Is the change in shape of any materials when subjected to the C. At the neutral axis action of a force. D. At the location between the top edge and the neutral A. Moment of inertia axis B. Modulus of elasticity C. Strain To prevent translation while permitting rotation, a structure must D. Stress be added with: A. Rivet Which of the following forces can a roller support hold? B. Bearing A. Only horizontal forces C. Hinge B. Both horizontal and vertical forces simultaneously D. Roller C. Only vertical forces D. Either vertical or horizontal forces but not both What is the smallest part of a compound that still retains the properties of that compound? Which of the following laws expressed relation between stress A. Alloy and strain? B. Element A. Poisson’s law C. Molecule B. Newton’s law D. Unit cell C. Young’s law D. Hooke’s law When a solid has a crystalline structure, the atoms arranged in repeating structures called ______. What do you call the inelastic (plastic) failure of the beam? A. Lattice A. Moment B. Unit cell B. Rotation C. Crystal C. Buckling D. Domain D. Crippling What type of bonding refers to the sharing of electrons? What loading occurs when the load is not applied through the A. Covalent bonding centroid? B. Van der waals bonding A. Axial loading C. Metallic bonding B. Local loading D. Ionic bonding C. Neutral loading D. Eccentric loading What refers to a crystal imperfection characterized by regions of severe atomic misfit where atoms are not properly surrounded by Which of the following stresses has an area perpendicular to the neighbor atoms? force? A. Discrystallization A. Normal stress B. Dislocation B. Shear stress C. Slip step C. Flexural stress D. Dispertion D. Torsional stress Downloaded by Elonah Joan Casas ([email protected])  lOMoARcPSD|42284842 What do you call metals reinforced by ceramics or other What materials has permeabilities slighter than that of free materials, usually in fiber form? space? A. Metalloids A. Paramagnetic materials B. Matrix alloys B. Non-magnetic materials C. Metal lattices C. Ferromagnetic materials D. Metal matrix composites D. Diamagnetic materials What is the usual valence of nonmetallic elements? Which of the following materials have very high permeabilities? A. 5 A. Paramagnetic materials B. 6 B. Non-magnetic materials C. 7 C. Ferromagnetic materials D. All of the choices D. Diamagnetic materials What mechanical property of a material refers to the nominal Low-quality steels with an M suffix on the designation intended stress at fracture in a tension test at constant load and constant for nonstructural application is classified as ______. temperature? A. Merchant quality A. Creep strength B. Commercial quality B. Stress rupture strength C. Drawing quality C. Compressive yield strength D. Special quality D. Hardness The use of acids to remove oxides and scale on hot worked What mechanical property of a material refers to the resistance to steels is known as ______. plastic deformation? A. Tempering A. Rigidity B. Pickling B. Plasticity C. Machining C. Ductility D. Galvanizing D. Hardness The purpose of molybdenum in steel alloying is to? What typical penetrator is used in Brinell hardness test? A. Increase brittleness A. 10 mm ball B. Increase dynamic and high-temperature strength o B. 120 diamond (brale) and hardness C. 1.6 mm diameter ball C. reduce brittleness, combine with sulfur o D. 20 needle D. increase corrosion and resistance What parameter is defined as the temperature at which the Indicate the false statement. toughness of the material drops below some predetermined A. About 10% of the earth’s crust is iron. value, usually 15 ft-lb? B. Pure iron does not have significant industrial use A. Nil ductility temperature because it is too weak and soft. B. Curie temperature C. Steel is an alloy of carbon and iron with limits on the C. Thermal conductivity amount of carbon (less than 2%) D. Heat distortion temperature D. Steel is made by reducing oxide ore of iron by thermochemical reactions in a blast furnace or direct What is obtained by repeatedly loading a specimen at given reduction vessel. stress levels until it fails? A. Elastic limit What does AISI stands for? B. Endurance limit or fatigue strength of material A. Asian Institute of Steel Industries C. Creep B. American Institute of Steel Industries D. All of the choices C. Association of Iron and Steel Industries D. American Iron and Steel Institute What dimensional property of a material refers to the deviation from edge straightness? What does SAE stands for? A. Lay A. Society of Automotive Engineers B. Out of flat B. Society of American Engineers C. Camber C. Society of Architects and Engineers D. Waviness D. Society of Alloy Engineers What is the maximum stress below which a material can The following statements are true except one. Which one? theoretically endure an infinite number of stress cycles? A. Carburizing does not harden a steel A. Endurance state B. Flame and induction hardening require the use of B. Endurance test hardenable steels. C. Endurance limit C. Quench-hardened steel does not require tempering D. Endurance strength to prevent brittleness. D. Induction hardening is usually most efficient on small What is a substance that attracts piece of iron? parts. A. Conductor B. Semiconductor Which of the following is a requirement for hardening a steel? C. Magnet A. Heating to the proper temperature D. All of the choices B. Sufficient carbon content C. Adequate quench Which of the following is a natural magnet? D. All of the choices A. Steel B. Magnesia What field of study encompasses the procurement and C. Lodestone production of metals? D. Soft iron A. Metallurgy B. Geology Which of the following materials has permeability slightly less C. Material Science than that of free space? D. Metalgraphy A. Paramagnetic materials B. Non-magnetic materials What do you call earth and stone missed with the iron oxides? C. Ferromagnetic materials A. Hematite D. Diamagnetic materials B. Magnetite C. Gangue D. Ore Downloaded by Elonah Joan Casas ([email protected])  lOMoARcPSD|42284842 What structure is formed when transformation occurs at What is a coal that has been previously burned in an oxygen- temperatures down to the knee of the curve? poor environment? A. Pearlite A. Tuyere B. Bainite B. Coke C. Austenite C. Diamond D. Martensite D. Hematite What allotropic form of iron refers to iron that has a temperature o What is the most common alloying ingredient in copper? range of room temperature to 1670 F? A. Brass A. Beta iron B. Zinc B. Gamma iron C. Nickle C. Delta iron D. Aluminum D. Alpha iron What do you call the removal of zinc from brasses? The alpha iron will become paramagnetic at temperature above A. Dezincification _____. o B. Graphitization A. 770 C o C. Stabilization B. 550 C o D. Dealloying C. 660 C o D. 440 C What is the scaling off of a surface in flakes or layers as the result of corrosion? What is the effect to aluminum with iron as the alloying element? A. Expoliation A. Reduce hot-cracking tendencies in casting B. Corrosion Fatigue B. Improve conductivity C. Scaping C. Lowers castability D. Fretting D. Improves machinability What corrosion occurs under organic coatings on metals as fine, What is the effect to aluminum with copper as alloying element? wavy hairlines? A. Increases strength up to about 12 % A. Stray current corrosion B. Reduces shrinkage B. Microbiological corrosion C. Improves machinability C. Filiform corrosion D. Increases fluidity in casting D. Fretting corrosion Which of the following are two well-known nickel alloys with What refers to the deterioration of material by oscillatory relative magnetic properties ideal for permanent magnets? motion of small amplitude (20 to 100 µm) between two solid A. Invar and Nilvar surfaces in a corrosive environment? B. Nichrome and Constantan A. Stray current corrosion C. Elinvar and Invar B. Microbiological corrosion D. Alnico and Cunife C. Filiform corrosion D. Fretting corrosion The Portland cement is manufacture from the dollowing elements except: Indicate the false statement about corrosion. A. Lime A. Plastics and ceramics are immune to many forms of B. Silica corrosion because they are not good conductors of C. Alumina electricity. D. Asphalt B. The corroded member in a corrosion cell is the cathode. What gives the average ratio of stress to strain for materials C. Passivity is a prerequisite for the corrosion protection of operating in the nonlinear region in the stress-strain diagram? many metals A. Modulus of elasticity D. Corrosion of metals is usually electrochemical in nature. B. Proportionality limit C. Secant modulus Steel is an alloy of iron and carbon with limits on the amount of D. Tangent modulus carbon to less than ______ percent. A. 2 What is the ratio of the ultimate failure strain to the yielding B. 3 strain? C. 4 A. Poisson’s ratio D. 1% to 5% B. Ductility C. Resilience What refers to the application of any process whereby the D. Fatigue surface of steel is altered so that it will become hard? A. Carburizing What do you call materials that do not conduct electric current? B. Casehardening A. Conductor C. Annealing B. Insulator D. Surface hardening C. Semi-conductor D. Intrinsic material What refers to the ability of steel to be hardened through to its center in large section? What element is known as the lightest metal? A. Malleability A. Aluminum B. Hardenability B. Manganese C. Spheroidability C. Magnesium D. Rigidity D. Lithium What is the equilibrium temperature of transformation of Which of the following is energy removal being applied? austenite to pearlite? A. Evaporation of water o A. 1000 F B. Changing water to stream o B. 1333 F C. Changing water to ice o C. 1666 F D. All of these o D. 1222 F Downloaded by Elonah Joan Casas ([email protected])  lOMoARcPSD|42284842 Halogens falls under what group in the periodic table? A. Group VIA Which one refers to the number of gram-moles of solute per liter B. Group VA of solution? C. Group IVA A. Molality D. Group VIIA B. Normality C. Molarity Which of the following is added to the drinking water distribution D. Formality system for disinfection? A. Soda ash What type of bonding is electrostatic attraction most B. Chlorine predominant? C. Lime A. Ionic D. Iodine B. Metallic C. Covalent What refers to the number of gram equivalent weights of solute D. Van der waals per liter of solution? A. Molality When the charge of an atom becomes unbalanced, the charge B. Normality atom is called _______. C. Molarity A. An ion D. Formality B. A neutron C. A proton Is the attraction between like molecules. D. An electron A. Absorption B. Diffusion Which of the following type of reactions in which bonds within a C. Adhesion compound are disrupted by heat or other energy to produce D. Cohesion simpler compounds or elements? A. Direct combination or synthesis What is formed when acids will react with active metals? B. Decomposition or analysis A. Sulfur C. Single displacement B. Oxygen D. Double displacement C. Hydrogen D. Chloride A pair of electrical conductors of dissimilar materials so joined as to produce a thermal emf when the junctions are of different How much is the pH content of an acid? temperatures. A. Between 4 and 6 A. Potentiometer B. Between 2 and 7 B. Piezoelectric C. Between 1 and 5 C. Thermocouple D. Between 0 and 7 D. Solar heating The condition of a liquid electrolyte is measured in terms of its: Bases will turn red litmus paper to what color? A. Specific gravity A. Blue B. Acid content B. Yellow C. Voltage output C. Violet D. Current value D. Green What is a substance that speeds up a chemical reaction without Which of the following refers to the diffusion of a solvent into a itself undergoing a chemical change? stronger solution in an attempt to equalize the two A. Ingredients concentrations? B. Reactants A. Purification C. Solvent B. Electrolysis D. Catalyst C. Osmosis D. Hydrolysis How are elements numbered 90 to 103 in the periodic table called? Which of the following will occur if a substance is oxidized? A. Alkali A. It absorbs energy B. Actinons B. It losses electron C. Earth metals C. It becomes more negative D. Transition elements D. It gives off heat What Is defined as a value equal to the number of gram moles of What type of reaction has one element and one compound as solute per 1000 grams of solvent? reactants? A. Molality A. Direct combination or synthesis B. Normality B. Decomposition or analysis C. Molarity C. Single displacement D. Formality D. Double displacement Which of the following is NOT a part of a atom? What is the measure of the energy that is no longer available to A. Electron perform useful work within the current environment? It is also B. Proton known as the measure of the randomness of the molecules. C. Neutron A. Entropy D. Coulomb B. Enthalpy C. Internal energy It is the number of protons in the nucleus of an atom. D. Flow work A. Molecular number B. Proton number What is the temperature when water and vapor are in equilibrium C. Mass number with the atmospheric pressure? D. Atomic number A. Ice point B. Steam point What do you call the elements in the first two groups in the C. Critical point periodic table? D. Freezing point A. Light metals B. Noble gas C. Non-metals D. Heavy metals Downloaded by Elonah Joan Casas ([email protected])  lOMoARcPSD|42284842 What is the unique state at which solid, liquid and gaseous What refers to a system in which there is a flow of mass across phases can co – exist in equilibrium? the boundaries? A. Triple point A. Open system B. Critical point B. Closed system C. Boiling point C. Isolated system D. Pour point D. Steady flow system What refers to the state at which liquid and gaseous phases are When two bodies, isolated from other environment, are in thermal indistinguishable? equilibrium with a third body, the two are in thermal equilibrium A. Triple point with each other. What do you call this statement? B. Critical point A. Zeroth law of thermodynamics C. Boiling point B. First law of thermodynamics D. Pour point C. Second law of thermodynamics D. Third law of thermodynamics What refers to the heat needed to change the temperature of the substance without changing its phase? At equal volume, at the same temperature and pressure A. Latent heat conditions, the gases contain the same number of molecules. B. Sensible heat This refers to which of the following laws? C. Specific heat A. Boyle’s law D. Entropy B. Charles’ law C. Dalton’s law What is defined as the quantity of the heat needed to raise the D. Avogardro’s law temperature of one kilogram of water by one degree Celsius? A. Kilojoule In the polytropic process we have P V^n = constant, if the value B. BTU of infinitely large, the process is called C. Kilocalorie A. Constant volume process D. Latent heat B. Constant pressure process C. Constant temperature process The thermal efficiency of gas vapor cycle is ______ the thermal D. Adiabatic process efficiency of a steam turbine or gas turbine A. Greater than Which of the following is the value of n (from P V^n = C) for a B. Less than perfect gas undergoing isothermal process? C. Not comparable A. 0 D. Equal B. 1 C. Infinity A property that indicates the natural direction of a process was D. n > 1 first described by a German physicist. This property is called entropy. Who coined the word entropy? What is used for predicting the behavior of non – ideal gas? A. Rudolf Clausius A. Compressibility factor B. Lord Kelvin B. Expansivity factor C. Gabriel Volks C. Emissivity factor D. Rudolf Diesel D. Vann – d’ Whal’s factor What is the temperature when water and vapor are in equilibrium For nay reversible thermodynamic process, which of the following with the atmospheric pressure? statements is true regarding the change in entropy? A. Ice point A. dS = dQ/T B. Steam point B. dS = 0 C. Critical point C. dS < 0 D. Freezing point D. dS > 0 When the expansion or compression of gas takes place without Which of the following processes where the equation dQ = T dS transfer of heat to or from the gas, the process is called is applicable? A. Reversible A. Irreversible B. Adiabatic B. Isometric C. Polytropic C. Reversible D. Isothermal D. Isothermal What refers to the liquid whose temperature is lower than the Which of the following thermodynamic relations is not correct? saturation temperature corresponding to the existing pressure? A. Q = U + W A. Subcooled liquid B. T dS = dU + pdV B. Saturated liquid C. dH = T dS + V dp C. Pure liquid D. H = U – pV D. Compressed liquid Which of the following thermodynamic devices operates the Which law that states “Entropy of all perfect crystalline solids is reverse of the heat engine? zero at absolute zero temperature”? A. Thermal pump A. Zeroth law of thermodynamics B. Thermal evaporator B. First law of thermodynamics C. Thermal condenser C. Second law of thermodynamics D. Thermal equilibrant D. Third law of thermodynamics Which of the following statements is false? Which one of the choices below refers to a system that is A. Wavelengths of visible light is greater than completely impervious to its surrounding or neither mass nor wavelengths of microwave energy cross the boundaries? B. Frequency of ultraviolet is greater than the frequency of A. Open system infrared B. Closed system C. Frequency of radio waves is less than the frequency of C. Isolated system infrared waves D. Nonflow system D. Wavelengths of x – rays is greater than the wavelengths of gamma rays Downloaded by Elonah Joan Casas ([email protected])  lOMoARcPSD|42284842 In music, which of the following is used in place of frequency? It refers to the magnitude of the auditory sensation produced by A. Beat the sound B. Tone A. Loudness C. Pitch B. Intensity D. Node C. Pitch D. Tone What is the time required for a vibrating object to complete one full cycle? Which of the following waves that can travel in vacuum? A. Frequency A. Light waves B. Amplitude B. Sound waves C. Period C. Longitudinal waves D. Time constant D. Particle waves The period of a simple harmonic oscillation is dependent to the What is the classification of the fluid flow if the fluid travels following EXCEPT parallel to the adjacent layers and the paths of the individual A. Mass particles do not cross each other? B. Amplitude A. Steady flow C. Frequency B. Laminar flow D. Force constant C. Uniform flow D. Turbulent flow Which of the following is true about the energy difference between adjacent energy levels? Which of the following refers to the measure of a fluid’s sensitivity A. It is the same for all quantum numbers to changes in viscosity with changes in temperature? B. It is smaller for small quantum numbers A. Viscosity index C. It is larger for small quantum numbers B. Coefficient of viscosity D. None of these C. Viscosity ratio D. Viscosity factor Which one is the Planck’s constant? A. 6.63 x 10^(-34) J s According to Archimedes’ principle, the buoyant force on a B. 6.42 x 10^(-32) J s submerged object is equal to C. 7.33 x 10^(-32) J s A. Weight of the fluid not being displaced D. 5.56 x 10^(-34) J s B. Weight of the displaced fluid C. Weight of the object above the fluid surface Before it travels through the earth’s atmosphere, a sunlight is D. Weight of the fluid displaced and the total weight of the mostly what? object A. Visible light B. Ultraviolet radiation Which of the following refers to the measure of the fluid’s C. Infrared radiation resistance to flow when acted upon by an external force? D. Blue light A. Specific gravity B. Specific volume If the distance between a sound source and a listener is C. Coefficient of resistance changing, the frequency heard will differ from the frequency D. Viscosity emitted. If the distance is decreasing, the frequency is higher and if the distance is increasing, the frequency will be shifted lower. What do you call the input power delivered by the motor to the What do you call this shifting effect? pump? A. Skin effect A. Nameplate power B. Hall’s effect B. Brake horsepower C. Decibel’s effect C. Hydraulic power D. Doppler’s effect D. Effective power Which light contains wavelengths of all or nearly all colors? If one end of the manometer opens to the air, what do you call A. White light this manometer? B. Laser A. Continuous manometer C. X – rays B. Open manometer D. Gamma rays C. Free end manometer D. Differential manometer Which one is the Boltzmann’s constant? A. 1.56 x 10^(-23) J/K An instrument use to measure small pressure B. 1.38 x 10^(-23) J/K A. Venture C. 1.42 x 10^(-22) J/K B. Orifice D. 1.23 x 10^(-22) J/K C. Aneroid D. Manometer What is the measure of the lumen output per watt input produced by the light source? Which of the following ratios describe Reynolds number? A. Lumen A. Inertial forces / Viscous forces B. Efficacy B. Drag forces / Buoyant forces C. Quality factor C. Buoyant forces / Inertial forces D. Coefficient of utilization D. Viscous forces / Drag forces Max Planck made the revolutionary discovery that the energy of This law states that the pressure applied at any point of a vibrating molecules involved in blackbody radiation existed only confined fluid is transmitted equally to all other points. What law in which of the following? is this? A. Multiples of certain fixed amounts A. Newton’s law B. Amounts that smoothly graded one into the next B. Boyle’s law C. The same, constant amount of energy in all situations C. Pascal’s law D. Amounts that were never consistent from one D. Charles’ law experiment to the next In a floating object, what do you call the distance between the center of gravity and the metacenter? A. Metacentric height B. Metacentric head C. Buoyancy head D. Submerged height Downloaded by Elonah Joan Casas ([email protected])  lOMoARcPSD|42284842 What is a check valve? What do you call the power required to deliver a given quantity of A. A valve used to check the pressure of fluid fluid against a given head with no losses in the pump? B. A valve that allows the fluid to flow in either direction A. Wheel power C. A valve designed to release the excess pressure B. Brake power D. A valve designed to allow the fluid to flow in one C. Hydraulic power direction only D. Specific power This tube is bent or curved and carries fluid from one container at The conservation of the energy equation used in any fluid a high elevation to another container at a lower elevation. analysis is based on A. Siphon A. First law of thermodynamics B. Impact tube B. Second law of thermodynamics C. Pilot tube C. Newton’s second law of motion D. Venture tube D. Coulomb’s first law of electrostatics Poise is a unit of viscosity derived from What do you call the market situation whereby there is only one A. Dyne second per sq. cm buyer of an item for which there are no goods substitute? B. Pound second per sq. ft. A. Monopsony C. Slugs second per sq. ft. B. Monopoly D. Gram second per sq. cm C. Oligopoly D. Oligopsony What is the velocity of the fluid particle at the center of the pipe? A. Minimum What is the method of computing depreciation in which the B. Maximum annual change is a fixed percentage of the depreciated book C. Between maximum and minimum value at the beginning of the year to which the depreciation D. Zero applies? A. Straight line method It refers to weight of the fluid per unit volume. B. Sinking fund method A. Absolute weight C. SYD method B. Mass D. Declining balance method C. Specific weight D. Gravitational acceleration What refers to the ratio of the interest payment to the principal for a given unit of time and usually expressed as a percentage of the Bernoulli’s law for fluid flow is based on the principles of principal? A. Conservation of mass A. Return of investment B. Conservation of energy B. Interest rate C. Newton’s second law of motion C. Yield D. Continuity equation D. Rate of return Which of the following is NOT a reaction turbine? What is defined as the future value minus the present value? A. Francis turbine A. Yield B. Thomson turbine B. Rate of return C. Pelton wheel turbine C. Capital D. Kaplan turbine D. Discount Which of the following is an empirical factor that accounts for the What bond whose security is a mortgage on certain specified friction and turbulence at the orifice? assets of the corporation? A. Coefficient of friction A. Registered bond B. Coefficient of contraction B. Collateral trust bond C. Coefficient of velocity C. Mortgage bond D. Coefficient of discharge D. Debenture bond What do you call the difference between the brake and hydraulic A bond without any security behind them except a promise to pay powers in a pump? by the issuing corporation is called A. Friction power A. Joint bond B. Discharge power B. Debenture bond C. Suction power C. Trust bond D. Water power D. Common bond Which of the following turbines are generally employed where the A type of bond where the corporation pledges securities which it available head is very high, typically above 800 to 1600 ft? owns such as the stock or bonds of one of its subsidiaries A. Reaction turbine A. Mortgage bond B. Propeller type turbine B. Joint bond C. Francis turbine C. Security bond D. Impulse turbine D. Collateral trust bond Absolute viscosity of a fluid varies with the pressure and What type of bond where the corporation’s owners name are temperature and is defined as a function of recorded and the interest is paid periodically to the owners with A. Density and angular deformation rate their asking for it? B. Density and shear stress