Ibong Tirírit (Mdsp 5) PDF

IBONG TIRIRIT (MDSP 5) It acts the carriage or compound rest through the mechanism lifted inside the apron The hacksaw blade should be placed in the A. apron frame with:...

IBONG TIRIRIT (MDSP 5) It acts the carriage or compound rest through the mechanism lifted inside the apron The hacksaw blade should be placed in the A. apron frame with: B. compound A. the teeth pointing forward C. mandrel B. the teeth pointing backward D. saddle C. one end looser than the other end D. the teeth facing in any direction answer: A answer: A It gives the cutting tool longitudinal feed, cross feed or When cutting a long thin piece of metal: carriers A. turn the blade upside down the frame A. angular feed B. turn the blade at right angles to the frame B. apron C. use a blade with fewer teeth per inch C. compound rest D. set the blade in the frame with the teeth D. saddle facing you answer: C answer: B The center, which is fitted in head stock A hacksaw blade with 18 teeth per inch is best spindle, called suited for cutting: A. above center A. solid stock B. below center B. cast iron C. dead center C. aluminum D. live center D. any of the above answer: D answer: D A center, which is fitted in tail stock A coclant is usually used when cutting spindle called material in a power hacksaw to A. above center A. absorb the heat of friction B. below center B. prevent the blade from overheating C. dead center C. prevent the blade from losing its temper D. live center D. all of the above answer: C answer: D Which of the following gives shearing action? A hacksaw blade with 32 TPI is suited for A. front clearance cutting: B. side clearance A. small tubing C. slide rake B. conduct D. top rake C. sheet metal under 18 gage D. any of the above answer: D answer: D Which of the ff. information is necessary when ordering a file? For filing lead or Babbitt, use a: A. size (length) A. vixen file B. shape B. mill file C. type of teeth C. sheet metal under 18 gage D. all of the above D. any of the above answer: D answer: D Never use a file: It moves on the lathe bed with cutting tool A. that is dirty according to the rotation of lead screw or by B. w/o a handle hand traversing wheel C. w/o oiling A. apron D. with a tang B. compound rest C. mandrel answer: B D. saddle The best file to use when finishing sharp answer: D corners or slots and grooves is the: A. mill file 1 B. square In quick return mechanism of shaping machine C. knife file the ram stroke length is proportional to D. jewelers file A. crank length B. ram length answer: C C. slotter arm length D. stroke On a lathe the dead center is used after: A. boring answer: A B. center-drilling C. drilling Type and number of bearings to be used for D. reaming spindles of machine tool depend on A. type of spindle answer: B B. type of machine tool C. load on spindle Eleven – sixteenths of an inch expressed as a D. load on the bearing decimal is: A..6785 answer: D B..7685 C..6875 When the dial on the cross-feed is turned D..6578.010”, you remove from diameter of the stock being cut: answer: C A..010 B..020 The markings on a micrometer barrel are: C..005 A..025” apart D..015 B..250” apart C..0025” apart answer: A D. 2.5” apart The flexible type hacksaw blade is best suited answer: A for work on: A. channel iron It measures the slope of the top surface of B. tubing the tool to the side in a direction C. aluminum perpendicular to the longitudinal axis D. any of the above A. end relief angle B. side cutting edge angle answer: D C. side rake angle D. side relief edge angle A flexible back hacksaw blade is one that has: A. only the teeth answer: C B. flexible ends C. a movable back It is used for holding straight shank drills D. any of the above in the spindle to the machine when drilling A. chuck key answer: D B. drill chuck C. floating holder A hacksaw blade with 24 TPI is best suitable D. magic chuck for cutting: A. tubing answer: B B. sheet metal over 18 gage C. brass and copper A reamer is used to correct the D. any of the above A. finish and depth of a drilled hole B. finish and position of a drilled hole answer: D C. size and position of a drilled hole D. size and roundness of a drilled hole An all hard hacksaw blade is one that: A. has a hard back and flexible teeth answer: D B. has a flexible back and hard teeth C. has the entire bade hardened Twist drills are usually considered suitable D. will only fit a solid frame hacksaw machining holes having a length less than A. two times their diameter answer: C B. five times their diameter C. ten times their diameter A hacksaw blade can be placed in a frame in: D. twenty times their diameter A. two positions B. four positions C. one position answer: B D. three positions 2 answer: B Before applying layout blue on a piece of metal, it must be: what should be the top rake angle to cut A. roughened brass? B. heated A. 0 C. cleaned B. 15 D. cold C. 30 D. 45 answer: C answer: A A drill bit has : A. 4 flutes It is a long, tapered punch used for loosening B. 3 flutes straight pins, taper pins, rivets and other C. 2 flutes small parts being disassembled D. no flutes A. center punch B. drift punch answer: C C. drive-pin punch D. hand punch The alignment of coupling faces can be checked by: answer: B A. using an inside micrometer B. inserting a thermocouple A tool used for turning nuts or bolts C. inserting a feeler gage between the A. c-clamps coupling faces at various points around the B. long nose circumference C. plier D. rotating and measuring to nearest permanent D. wrench fitting answer: D answer: C Used to permit lever shift for vertical travel A piece of cast iron held against an emery of rail wheel will give off: A. ball crank A. dull yellow sparks B. clamp plates B. bright shiny sparks C. plumb bob C. red sparks D. plunger knob D. no sparks answer: D answer: A It is mounted on the top of the column and is When cutting material in a lathe, the softer guided in perfect alignment by the machined the material being cut, the tool bit should dovetailed surface have: A. arbor A. more top rake B. over arm B. less top rake C. saddle C. double top rake D. spindle D. any of the above answer: B answer: D Name of mechanism, which a welding operator After grinding a tool bit, the cutting edge holds during gas welding and at the end of should be: which the gases are burred to perform the A. case-hardened various gas welding operation. B. rubbed with emery cloth A. hose C. stoned with an oilstone B. gage D. rubbed with crocus cloth C. switch D. torch answer: C answer: D It is a hole revolving cutter or grinding wheel for mounting it on an arbor. A scriber is made from: A. arbor hole A. carbon steel B. hole saw B. cold-rolled steel C. star drill C. tool stee l D. star saw D. hot-rolled steel answer: A answer: C 3 A machine in which materials are pulverized between the two toothed metal disk rotating in A piece of mild steel held against an emery opposite directions. wheel will give off: A. attrition mill A. bright shiny sparks B. ball mill B. light straw colored sparks C. beater mill C. no sparks D. tumbling mill D. green sparks answer: A answer: B A press in which mechanical feeding of the A gear wheel making 156 rpm has 56 teeth. It work is synchronized with the press action drives another gear at 91 rpm. The number of A. automatic press teeth on the second gear is: B. dial press A. 65 C. manual press B. 90 D. punch press C. 50 D. 96 answer: A answer: D A supporting member that carriers a wheel and either rotates with the wheel to transmit Tool steel can be hardened by: mechanical power to or from it, or allows the A. heating red hot and plunging into water wheel to rotate freely on it called B. heating red hot and cooling in a blast of A. axle dry air B. bushing C. heating red hot and plunging into linseed C. coupling or cottonseed oil D. shaft D. any of the above, depending on type and use answer: A answer: D A file whose edges are parallel is known as A scriber is made from: A. blunt file A. carbon steel B. crochet file B. cold-rolled steel C. cross cut file C. tool steel D. equaling file D. hot-rolled steel answer: A answer: C Straight muriatic acid is often used as a flux on: After grinding a tool bit, the cutting edge A. galvanized iron should be B. cast sheet C. sheet steel A. case hardened D. any of the above B. rubbed with emery cloth C. rubbed with crocus clothe answer: D D. stoned with an oilstone Special solders used for aluminum usually answer: D require: A. more heat When cutting material in a lathe, the softer B. less heat the material being cut, the tool bit should C. the same heat as copper wire have D. the same heat as sheet metal A. any of these answer: A B. double top rake C. less top rake Copper is annealed by heating to a cherry red D. more top rake color and: answer: C A. dousing in cold water B. cooling slowly in air C. dousing in oil A piece of cast iron held against an emery D. dousing in hot water wheel will give off A. bright shiny sparks answer: B B. dull yellow sparks 4 C. no sparks B. flank D. red sparks C. nose D. side relief answer: B answer: B Which of the following is not a common term relating to the classification of fits Which one is the hardest material? A. bound A. brass B. medium force fit B. bronze C. snug C. diamond D. tunking D. steel answer: A answer: C An oversize hole is produced by a drill if The movement of belt upon the face of rim or A. cutting speed is too high outer of the driver and driven pulleys within B. feed is too high the area of arc of contact is called C. insufficient coolant is used A. creep D. lips of drill are of unequal length B. crowning C. dressing answer: D D. slip The studs used as a coolant in general machine answer: A shop consist of A. a chemical solution It is a device, which hold the job family B. an emulsion of oil and water A. clamp C. a solution of detergent and water B. fixture D. a straight mineral C. grip D. jig answer: B answer: B Sometimes used for soldering bright tin A. rosin It is the outer surface of face or rim of the B. sal ammoniac pulley is made in convex form to keep the belt C. tallow in center when it is in motion D. tinning A. creep B. crowning answer: A C. dressing D. slip A very effective flux for soldering galvanized iron and zinc answer: B A. cut acid B. muriatic acid It is used to transmit motion at high speed C. soldering pastes without producing noise. D. zinc chloride A. bevel gear B. helical gears answer: B C. hypoid gears D. worm gears The process of checking the surface of a piece by rolling depressions into the surface answer: B A. honing B. knurling It is used to transmit motion at high speed C. reaming with heavy load without producing noise D. snagging A. bevel gear B. herring bone gear answer: B C. spur gear The process of cutting internal threads by D. worm gear means of a cutting tool. A. chamfering answer: B B. honing C. reaming It connect the shafts with soft materials such D. tapping as rubber, leather and canvass A. flexible coupling answer: D B. Oldham coupling C. rigid coupling The surface below the cutting edge D. universal coupling A. face 5 answer: A If muriatic acid is used as a flux, the soldered area must be cleaned thoroughly One of the most important factors that is afterwards to prevent: often overlooked when soldering is the fact A. anyone touching it from getting burned that: B. remaining acid from eating the metal A. the surface to be soldered must be clean C. the acid from evaporating the solder B. the two metals to be soldered must not be disintegrating the same D. none of the above C. the two metals to be soldered must be the same answer: B D. all surfaces should be dipped in acid first It cannot be forged because it will break if answer: A heated and beaten by hammer. A. Carbon steel A surface should be prepared for soldering by B. Cast iron A. filing the surfaces C. High speed stee l B. scraping the surfaces D. Tool steel C. acid-cleaning the surfaces D. any of the above answer: B answer: D Shaper tools are made of what type of material? The hand tool used for cutting threads on round stock is the: A. Babbitt B. Brass A. stock and die C. Bronze B. die wrench D. High speed steel C. stock D. stock cutter answer: D answer: A It is the operation of beveling the mouth of a hole. A hand tool used for cutting threads on round stock is the: A. Counter boring B. Counter broaching A. stock and die C. Counter sinking B. die wrench D. Spot facing C. stock D. stock cutter Answer: C answer: A The size of abrasive grains produced by crushing process is called A tapered piece of stock is 2” long, 1-1/8” A. diameter at one end and ½ diameter at the B. other end. The taper per foot is: C. Grit A. 2” D. B. 2-1/2” C. 2-1/4” Answer: C D. 2-1/16” It is the combination of iron, carbon and answer: C other alloying elements. A. Alloy steel Sweating is the process of: B. Brass A. soldering two different kinds of metal C. Carbon steel together D. Cast iron B. separating two pieces of metal that have been soldered together Answer: A C. tinning two surfaces, applying, flux between them, holding the two together and It is the process to divide the periphery of heating the job in degrees. D. none of the above A. Angular indexing answer: C B. Differential indexing C. Direct indexing D. Plain indexing 6 Answer: A The best method of avoiding accident is by observing _______ related to job, machine and It consists of surface irregularities, which work piece. result from the various manufacturing process. A. Cleanliness A. Flaws B. Emery B. Lay C. Opponent C. Roughness D. Safety precautions D. Waiveness Answer: D Answer: C The size of try square is measured from the A piece of tool steel held against an emery inner edge of stock to the end of its wheel will give off: A. Base A. White sparks with stars on the ends B. Blade B. Yellow sparks C. Body C. No sparks D. Edge D. Green sparks Answer: B Answer: A Angle of center punch is Grinding wheels have a range of soft to hard abrasive materials depending on the use. Most A. 30° manufacturers latter their wheels from A to Z. B. 45° The hardest is marked: C. 60° D. 90° A. E B. A Answer: D C. Z D. El Staggering of hacksaw blade teeth on both sides alternatively is called Answer: C A. Arrangement of teeth B. Positioning to teeth The main difference between a planer and C. Setting of teeth shaper is that: D. None of the above A. The planer has an offset table and the shaper has a horizontal table. Answer: C B. The shaper has a rotting table and the planer has a horizontal table. It is the distance measured parallel to the C. The table of planer has a reciprocating axis from a point on a screw thread to the motion past the tool head white the table of corresponding point on the next thread. the shaper is stationary and the tool head has A. Chord a reciprocating motion. B. Lead D. Ones is larger than the other C. Linear D. Pitch Answer: C Answer: D One of the factors involved in the choice of a grinding wheel is: Solder is an alloy of A. The kind of material to be ground A. Lead and antimony B. The amount of stock to be removed B. Lead and tin C. The kind of finish required C. Lead and tungsten D. All of the above D. Lead and zinc Answer: D Answer: B The “tang” of a file is the past that: It’s a square key with the bottom two corners A. Does the cutting are beveled. B. Fits into the handle A. Saddle key C. has no teeth B. Barth key D. is opposite the handle C. Woodruff key D. Gib head key Answer: B Answer: B 7 Change in metal structure by which the surface C. Helical milling structure recover from its unstable condition D. Straddle milling A. annealing B. normalizing Answer: A C. aging D. tempering A core drill with hardened steel shot pellets that revolve under the rim of the rotating Answer: C tube, employed in rotary drilling in very hard ground. A tapered square key is known as A. Gib head A. Adamantive drill B. Woodruff B. Automatic drill C. Kennedy C. Double core barrel drill D. Barth D. Flat drill Answer: C Answer: A The process of welding two dissimilar metals A grinding mill of large diameter with either is known as lumps of ore pebbles or steel balls as A. Friction welding crushing bodies the dry lead is air swept B. Flash welding remove mesh material. C. Oxyacetylene welding A. Aerial speed D. Cold welding B. Aero fall mill C. Aero motor Answer: D D. Ball mill A nonmetal considered as undesirable impurity Answer: B in steel is A. lead A tool – steel cutter used fro – finishing B. sulfur surfaces of angles greater than or less than C. phosphorous 90* with its axis of rotation called: D. cyanide A. Angle cutter B. Asphalt cutter Answer: B C. Circular cutter D. Helical cutter An alloying element which improves the tensile strength of steel and make it harder Answer: A A. vanadium B. carbon When installing a new grinding wheel, always C. cobalt use: D. chromium A. Blotting paper gaskets on each side of the wheel Answer: D B. Copper gasket on each side of the wheel C. Only the steel washers provided with the An alloying element which reduces deformation machine of configuration and sulfuric brittleness. D. None of the above A. molybdenum B. manganese Answer: A C. nickel D. chromium The operation of “truing” a grinding wheel is known as: Answer: B A. centering B. dressing What is the lip clearance angle of twist drill C. sizing for generated work? D. rounding A. 3 – 6° B. 8 – 10° Answer: B C. 12 – 15° D. 18 – 22° The tool used to check external pipe threads is called a: Answer: C A. plug gage B. thread gage It is a milling method in which parts are C. pitch gage placed in a row parallel to the axis of the D. ring gage cutting tool end are milled simultaneously. A. Abreast milling Answer: D B. Angular milling 8 The tool used to check internal pipe threads It is done then and there by adjusting or is called a: repairing the faults come in notice during A. plug gage work. B. thread gage A. Corrective maintenance C. pitch angle B. Predictive maintenance D. ring gage C. Preventive maintenance D. Routine maintenance Answer: A Answer: D The tool used to cut gears is called a: A. gear cutter Which statement does NOT belong to the B. gear hob function of bearings? C. gear center A. To give free rotation to the shaft D. gear threader B. To guide the shaft C. To support the shaft Answer: B D. To transmit power If use a dry grinding wheel for sharpening Answer: D tool bits, dip the end of the bit in water frequently to prevent- A “pillar” file has: A. burning your fingers A. One safe edge B. annealing the cutting edge of the bit B. Three safe edges C. hardening of the tip C. Two safe edges D. the tip from crysallizing D. A or C Answer: B Answer: D CNC in machine shop means In general, files are divided into two classes called: A. Communication Network Control A. Single – cut and double – cut B. Computer Network Center B. Fine and coarse C. Computer Number Control C. Rough and smooth D. Computer Numerical Control D. Heel and sizes Answer: D Answer: A It is the time lost due to breakdowns, waiting The length of a file is measured from: for tools, minor accidents etc. A. End to end B. Point to heel A. Down time C. Point to end B. Handling time D. Heel to end C. Machining time D. Set up time Answer: B Answer: A A “pillar” file is used for: A. Filling slots Refers to the process of separating or B. Filling keyways removing the burning or combustible material C. Filling against a shoulder from the neighborhood of the fire. D. Any of the above A. Blanketing Answer: D B. Combustion C. Cooling A flexible hacksaw blade has a tendency to: D. Starvation A. Snap easily B. Buckle or run out of line when too much Answer: D pressure is applied C. Cut too fast What is the necessity of giving tolerance? D. Cut on a slant A. It saves the labor charges Answer: B B. Its saves the material from wastage C. It saves the time Soldering is the process of: D. All of the above A. Holding two metals together by heating B. Joining two metals by third soft metal that Answer: D is applied in a molten state C. Holding two different kinds of metals together by heating 9 D. Joining two metals together by heating D. Universal testing machine Answer: B Answer: C When soldering, flux is used to; An instrument for measuring the degree of A. Keep the solder from running off the metal surface roughness in micro inches. B. Keep the metal from getting too hot C. Keep the tip of the soldering iron clean A. Caliper D. Remove and prevent oxidation of the metals B. Micrometer C. Profilometer Answer: D D. Sclerescope What is used to connect the shaft whose axes Answer: C are intersecting? A. Flexible coupling These spindle of the grinding machine on which B. Oldham coupling the wheel is mounted. C. Rigid coupling D. Universal coupling A. Arbor B. Bearing Answer: D C. Bushing D. Fluting It is generally used on high speed with light load because it has point contact. Answer: A A. Ball bearing B. Metal bearing A device for holding grinding wheels of C. Roller bearing special shape or the working piece – being D. Wood bearing grounded. Answer: A A. Chuck B. Fixtures It is generally used on high speed with heavy C. Head stock load because it has line contact. D. Jigs A. Ball bearing Answer: A B. Metal bearing C. Plastic bearing Grinding the grooves of a twist drill or tap. D. Roller bearing A. Flaring Answer: D B. Fluting C. Honing It is a process of enlarging and smoothening D. Lapping the punched hole by means of tapered drifts of various sizes and shape. Answer: B A. Drawing out The dulling of the cutting particles of a B. Drifting grinding wheel resulting in a decreased rate C. Jumping of cutting is called D. Upsetting A. fluting B. glazing Answer: B C. grinding D. lapping It is a set of gears fitted in different position on a plate which are controlled by a Answer: B lever. A. Differential gear The process of lengthening a piece of stock B. Gear train while the cross-sectional area is being C. Stud gear reduced D. Tumbler gear A. Drawing B. Honing Answer: D C. Tapping D. Upsetting An instrument for determining the relative hardness of material by a drop and rebound Answer: A method. A. Brinell hardness tester The major factors, which determined the rpm on B. Rockwell hardness tester milling cutter, are the material being cut and C. Scleroscope A. depth of the cutter 10 B. diameter of cutter C. oxidation on it C. number of teeth in cutter D. any of the above D. time allowed to complete the job Answer: D Answer: D Prepared soldered paste flux is most popular Electron beam machining process is quite but if you did not have any, you should use: suitable for a material having A. hydrochloric acid A. high melting point and high thermal B. sulphuric acid conductivity C. nitric acid B. high melting point and low thermal D. any of the above conductivity C. low melting point and low thermal Answer: A conductivity D. low melting point and high thermal Another name for hydrochloric acid is: conductivity A. sulphuric acid B. muriatic acid Answer: B C. nitric acid D. acetic acid Grinding is what type of operation? A. Metal finishing operation Answer: B B. Metal fusing operation C. Metal powdering operation Hard solder is made of: D. metal surfacing operation A. copper and zinc B. tin and zinc Answer: A C. tin and copper D. tin and lead Grinding is done wherever A. a large amount of material is to be removed Answer: A B. a small amount of material is to be removed C. high accuracy is required Soft solder is made of: D. other machining operations can not be A. copper and zinc carried out B. tin and lead C. tin and copper Answer: C D. tin and zinc Laser beam machining process is used to Answer: B machine A. heavier materials Soft solder melts at approximately: B. lighter materials A. 250 deg. C. thicker materials B. 350 deg. D. thinner materials C. 450 deg. D. 550 deg. Answer: D Answer: B A hard grade-grinding wheel is suitable for grinding The flux usually used for hard solder is: A. both hard and soft materials A. rosin B. hard materials B. borax C. smooth materials C. barium D. soft materials D. alum Answer: D Answer: B The usual ratio of forward and return stroke, Which of the following is a boring machine in quick mechanism of shaping machine is tool used particularly for large work place, A. 3:1 types are horizontal and vertical? B. 3:2 A. Boring mill C. 5:2 B. Burrstone mill D. 6:8 C. Cage mill D. Chile mill Answer: B Answer: A Solder will not unite with metal surface that has: A tap with a chamfer 1 – 1 ½ threads in length A. grease on it A. Bottom tap B. dirt on it B. Center tap 11 C. Plug tap D. Taper tap Answer: C Answer: A Copper is annealed by heating to a cherry red color and: A small portable hand drill customarily used A. dousing in cold water by hand setters to drill the holes in breast B. cooling slowly in air called C. dousing with oil A. spiral drill D. dousing in hot water B. diamond drill C. churn drill Answer: B D. breast drill The purpose of “annealing” is to make a metal: Answer: D A. harder B. medium - hard A job, which is fixed away from the table, can C. softer be machined by D. shiny A. running head B. moving head Answer: C C. static head The purpose of “tempering” is to make a metal: D. traveling head A. harder Answer: D B. softer C. less brittle Shaper tools are made of D. more brittle A. cast iron B. high speed steel Answer: C C. mild steel D. wrought iron The minimum diameter of a piece of round stock necessary to make a square key ¾” on a side Answer: B is: Refers to the unit can be moved longitudinally A. 1.5” along the swivel table and is clamped in B. 1.06” position by two bolts one on either side of C. 1.0” the base D..75” A. Cross stock B. Foot stock Answer: B C. Head stock D. Tail Stock A fine grained, salty silica rock used for sharpening edge tools Answer: C A. Oilstone When a lathe is put into back gear, it will B. Peeblestone go: C. Surface grinder A. at the same speed backwards D. Rocky oil B. slower C. faster Answer: A D. at a slower speed backwards A hand tool used to measure tension on bolts Answer: B A. Hammer When using a drill press, the work should be B. Plier held with C. Screw driver A. the hand D. Torque range B. a pair of pliers C. a vise or clamp Answer: D D. gloves on A hand tool used to measure engine crank web Answers: C deflection When drilling a hole in a piece of work held A. compound gage in a lathe chuck, and would use the: B. dial gage A. compound rest C. distortion gage B. cross-feed D. feeler gage C. tailstock and drill chuck D. headstock Answer: C 12  C. Heating oils A kind of chuck, which has reversible jaws, D. Emulsions which could be adjusted separately Answer: B A. Combination chuck B. Independent chuck How is the height of a bench vice adjusted? C. Magnetic chuck A. By using a wooden plate form D. Universal chuck B. By using a wooden packing piece under the vice base Answer: B C. By using a vice adjusting fixture D. All of the above A method whereby a gear is run with another gear that has abrasive surface material Answer: D A. hobbing B. honing Why hacksaw blade teeth get dullness? C. lapping A. Coarse pitched blade is used on hard metal D. milling B. Pressure is not released in return stroke C. To much speed and pressure Answer: C D. Any of the above Is the process of cold works where a limited Answer: D amount of material, resulted to a higher strength and it leaves a surface under Files are classified according to compressive stress A. grade and cut A. surface finishing B. shape B. smoothing C. size and length C. surfacing D. all of the above D. surface rolling Answer: D Answer: D How are rivets made? Is largely used for low strength application A. Cold pressing such as elevator ropes not used for hoisting B. Drawing and for stationary guy ropes C. Hot rolling D. Rolling A. steel rope B. cast steel rope Answer: A C. nylon rope D. iron wire rope What support the top rake? A. Front clearance Answer: D B. Side clearance C. Side rake Nitriding process of surface treatment for D. Top rake steel tools is used for tools taking Answer: A A. heavy cuts B. light cuts Which of the following reduces the rubbing C. medium cuts action? D. straight cuts A. Front clearance B. Side Clearance Answer: B C. Side rake D. Top rake At a very low cutting speeds the tool wear is due to Answer: A A. hardness Which of the following is used for all general B. material purposes? C. plowing action A. Forging D. transfer B. Production slotter C. Puncher slotter Answer: C D. Tool room slotter They are mixtures of lard, cottonseed or Answer: C rapeseed oils and mineral oils are called It is an operation of milling the complex A. Cooling oils surfaces with the help of a group of cutters B. Cutting oils mounted on the same arbor 13 A. Climb milling B. Down milling C. Gang milling D. Straddle milling Answer: D It is an operation to divide the periphery of the job into number of equal parts A. Dividing head B. Indexing C. Protractor D. Slotting Answer: B The angle formed between the face of a tool and the work surface or the tangent to the work piece at the point of contact with the tool called A. clearance angle B. cutting angle C. rake angle D. wedge angle Answer: B 14