DOST JLSS Exam Reviewer - Mechanical Engineering
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Questions and Answers

SARAH:TBSBT::PALMA:

  • SBSSZ
  • QBMNB
  • RIFJMBO (correct)
  • NBQJBO

    • BIG:ENORMOUS::SMALL:

  • MACROSCOPIC
  • PARASITIC
  • MINISCULE (correct)
  • VOLUMINOUS

    • GALILEO GALILEI:TELESCOPE::BENJAMIN FRANKLIN:

  • TELEGRAPH WIRE
  • STEAM ENGINE
  • MOTION PICTURE CAMERA
  • ELECTRICITY (correct)

    • ALBERT EINSTEIN:LAW OF GRAVITY::ALEXANDER FLEMING:

    <p>PENICILLIN</p> Signup and view all the answers

    BAT:BALL::BOW:________

    <p>ARROW</p> Signup and view all the answers

    HIDE:CONCEAL::STOP:________

    <p>PAUSE</p> Signup and view all the answers

    BOWED STRINGS:VIOLIN::WOODWIND:________

    <p>FLUTE</p> Signup and view all the answers

    WHALE:POD::KITTEN:_______

    <p>LITTER</p> Signup and view all the answers

    SPONGE:POROUS::SKUNK:________

    <p>SMELLY</p> Signup and view all the answers

    DO:DID::COST:_______

    <p>COSTED</p> Signup and view all the answers

    What does verbal reasoning test?

    <p>It tests your ability to understand, analyze, and interpret information.</p> Signup and view all the answers

    What types of topics does the Science sub-test consist of?

    <p>Biology, Chemistry, Physics, Earth Science</p> Signup and view all the answers

    What does the English sub-test measure?

    <p>It measures your ability to apply the rules of English language.</p> Signup and view all the answers

    What is the correct sequence of precautions to take before, during, and after a typhoon?

    <p>IV – II – III – I</p> Signup and view all the answers

    Which of the following is a recipe for landslides?

    <p>High angle slope, soil, and wet conditions</p> Signup and view all the answers

    Which information will you need to look up to determine the nearest town to evacuate to avoid the effects of the typhoon?

    <p>Maximum wind speed</p> Signup and view all the answers

    Which of the following precautions SHOULD NOT be done while a typhoon is in your area?

    <p>Check the roof and windows of your house for any damage or loose attachment</p> Signup and view all the answers

    What is the correct classification of Ceres?

    <p>Asteroid</p> Signup and view all the answers

    Which objective should you use to achieve 100x magnification with a 10x eyepiece?

    <p>100x</p> Signup and view all the answers

    Which aquatic biome is right for a pet fish released back to its natural habitat?

    <p>Estuary</p> Signup and view all the answers

    What can be inferred about the spines of cactus and euphorbs?

    <p>This character is said to be analogous.</p> Signup and view all the answers

    What is the functional group present in acetic acid?

    <p>Carboxylic acid</p> Signup and view all the answers

    What is the balanced chemical equation to produce calcium phosphate?

    <p>3CaCl2 + 2Na3PO4 → Ca3(PO4)2 + 6NaCl</p> Signup and view all the answers

    What is the electronic configuration for a ground state element with a nuclear charge of +16?

    <p>1s2 2s2 3s2 2p6 3p4</p> Signup and view all the answers

    Which nuclide has the same number of protons, neutrons, and electrons?

    <p>O (Z = 8)</p> Signup and view all the answers

    What is the wavelength of the wave described in the graph?

    <p>2π m</p> Signup and view all the answers

    At what angle from the ground should the projectile be thrown to achieve maximum range?

    <p>45°</p> Signup and view all the answers

    Which two activities in Ben’s Monday morning school activities requires a change of speed and are NOT reasonable?

    <p>III and IV</p> Signup and view all the answers

    What is the final displacement of the tricycle after boarding it to go to the market?

    <p>8m</p> Signup and view all the answers

    Which two activities in Zeon’s Sunday trip require a change of speed and are NOT reasonable?

    <p>II and III</p> Signup and view all the answers

    In a velocity versus time graph, how can a horizontal graph be interpreted?

    <p>Constant velocity</p> Signup and view all the answers

    What rock layers are older than the fossil in limestone D?

    <p>Siltstone O and sandstone Q only</p> Signup and view all the answers

    What dating technique will you use to know the age of a fossil believed to be petrified wood?

    <p>Absolute dating: carbon dating</p> Signup and view all the answers

    Which properties affect the severity of the seasons all over the Earth?

    <p>The tilt of the Earth</p> Signup and view all the answers

    Which information will you need to look up to determine the possible damage caused by a typhoon?

    <p>Maximum wind speed</p> Signup and view all the answers

    Which of the following is the least susceptible to landslide?

    <p>Low angle slope, fractured rock, and dry conditions</p> Signup and view all the answers

    Between which parts of the egg can the Moho be found?

    <p>The yolk and the shell</p> Signup and view all the answers

    In which type of rock or soil profile do the houses experience the greatest earthquake?

    <p>Silt and mud</p> Signup and view all the answers

    Which layer of the Earth is most likely to contain solid nickel and iron?

    <p>2</p> Signup and view all the answers

    What process is shown by the slow circulation of the mantle?

    <p>Convection</p> Signup and view all the answers

    How should you pour sediments to facilitate proper settling into water?

    <p>Pebbles – coarse sand - fine sand - silt</p> Signup and view all the answers

    What does the high-heat flow evidence near the mid-ocean ridge indicate?

    <p>Existence of rising mantle convection currents</p> Signup and view all the answers

    What is the correct sequence of events from oldest to youngest?

    <p>A-D-B-O-K-N-G-J-P-C-R</p> Signup and view all the answers

    Which of the following defines a one-to-one function?

    <p>f (x) = 5x</p> Signup and view all the answers

    Which statements are true about quadrilaterals?

    <p>I, II and III only</p> Signup and view all the answers

    Which propositional form represents the proposition about quadrilaterals?

    <p>(P ∧ Q) → R</p> Signup and view all the answers

    If sin β = -5/7 and tan β > 0, what is the exact value of cos β - sin β?

    <p>-1</p> Signup and view all the answers

    Use set notation to describe the shaded region.

    <p>A ∪ (B ∩ C)</p> Signup and view all the answers

    What pattern of paragraph development is evident in the passage?

    <p>Process</p> Signup and view all the answers

    Which of the following will NOT support your claim about the effectiveness of the paragraph in achieving its purpose?

    <p>Research data were used to validate the information.</p> Signup and view all the answers

    How should the information about 'Metabolism' be presented in an infographic?

    <p>Draw a concept map plotting the important details about 'Metabolism.'</p> Signup and view all the answers

    Which option best captures the gist of the passage regarding metabolism?

    <p>Metabolism is the process of burning calories to support body functions.</p> Signup and view all the answers

    Which underlined part of the sentence shows an ERROR? Physics are _____.

    <p>The science concerned with</p> Signup and view all the answers

    Which underlined part of the sentence shows an ERROR? Rock and roll are _____.

    <p>The kind of music his mother</p> Signup and view all the answers

    Which underlined part of the sentence shows an ERROR? The 12-year-old boy, along with his classmates and their parents, _____.

    <p>Are</p> Signup and view all the answers

    Which underlined part of the sentence shows an ERROR? Lucia's father's nephew is also _____.

    <p>His</p> Signup and view all the answers

    Based on your inference of the poem's message, which option best explains its main idea?

    <p>Roaches will outlast humans.</p> Signup and view all the answers

    The word EULOGY is closest in meaning to _____.

    <p>Tribute</p> Signup and view all the answers

    The attitude of the author in the preceding poem is _____.

    <p>Detached</p> Signup and view all the answers

    Roaches could be said to live with each other in peace and harmony because according to the poem, they tolerate their own kind's _____.

    <p>Smell</p> Signup and view all the answers

    If you were to write the roaches in the poem an email, which parts of a mail should be considered the most important and in what order would you write them?

    <p>To, Subject, Message, Signature</p> Signup and view all the answers

    The word EVICTION in line 12 is closest in meaning to _____.

    <p>Expulsion</p> Signup and view all the answers

    Using a compound microscope, you want to view a plant cell under a magnification of 100x. Which objective should you use to achieve your desired magnification if your eyepiece has a magnification of 20x?

    <p>80x</p> Signup and view all the answers

    What do plants need for photosynthesis to occur?

    <p>Light, water and carbon dioxide</p> Signup and view all the answers

    Which biome do you think is right for Diwata, the animal that has a thick fur coat and likes to sleep for months?

    <p>Tundra</p> Signup and view all the answers

    If the daisy and orchid’s common ancestor has a flower, what can be inferred from this character?

    <p>This character is said to be homologous.</p> Signup and view all the answers

    How is spermatogenesis different from oogenesis?

    <p>There are prolonged interruptions in oogenesis unlike in spermatogenesis which occurs in a constant manner.</p> Signup and view all the answers

    What is the genotype of Cora, who married Rico with blood type AB and had four children with different blood types?

    <p>IBi</p> Signup and view all the answers

    Which microscope part do you adjust to sharpen the focus?

    <p>Fine adjustment knob</p> Signup and view all the answers

    Which biome is Pag-asa's natural habitat, given that it is succulent with many spines and barely any leaves?

    <p>Desert</p> Signup and view all the answers

    All the following are postulates of the Kinetic Molecular Theory of gases, except:

    <p>At lower temperatures, molecules have higher kinetic energies.</p> Signup and view all the answers

    Which pairs of chemical formula and chemical name is correctly matched?

    <p>AlPO4 : aluminum phosphate</p> Signup and view all the answers

    Using your knowledge of electronegativity, which of the following compounds is not ionic?

    <p>C3H8</p> Signup and view all the answers

    You have a mixture of sand, copper, and water in a beaker. Which experimental design will you follow to separate the components most effectively?

    <p>First, filter the mixture in a funnel to separate copper and sand from water, then recover copper from sand using a magnet.</p> Signup and view all the answers

    If you want to study the organic dyes found in the leaves of Poinsettia, how would you design an experiment to separate the pigments?

    <p>First, boil the leaves to extract the mixture of dyes, filter, then perform chromatography using the resulting solution.</p> Signup and view all the answers

    Your group found that an unknown compound is solid at room temperature, dissolves in water, and conducts electricity when dissolved in water. The compound is likely to be:

    <p>Sodium chloride, an ionic compound</p> Signup and view all the answers

    Which graph shows that the taxi is NOT moving?

    <p>A and D</p> Signup and view all the answers

    Which of the following will require the greatest amount of mechanical work?

    <p>Lifting a 2-kilogram box 6 meters high</p> Signup and view all the answers

    Which of the following consumed the greatest amount of energy?

    <p>A 100-watt LCD TV used for 4 hours</p> Signup and view all the answers

    Which of the following consumed the least amount of energy?

    <p>A 5-watt LED bulb used for 24 hours</p> Signup and view all the answers

    Energy within the oceans is distributed through which process?

    <p>Convection</p> Signup and view all the answers

    The Earth is heated by the Sun by which process?

    <p>Radiation</p> Signup and view all the answers

    An object with what looks like a tail is visible at the sky for days. What object is this?

    <p>Comet</p> Signup and view all the answers

    Which image shows the correct configuration of the Earth, Moon, and Sun during a total solar eclipse as last seen in the Philippines on Oct. 24, 1995?

    <p>B</p> Signup and view all the answers

    At which direction were you facing at 8:00 AM if the sun is to the right of you and to the left at 4:00 PM?

    <p>North</p> Signup and view all the answers

    The residue left on the cup after pouring saltwater solution on a cup of sand from the beach is most likely similar to_____

    <p>A clastic sedimentary rock</p> Signup and view all the answers

    Using the illustration of delta formation, how can a delta be formed without excessive mass movement?

    <p>Turn on the faucet with water running smoothly and adjust the table on a low slope.</p> Signup and view all the answers

    What information will you need to look up to determine when a typhoon will arrive at your area?

    <p>All of the above</p> Signup and view all the answers

    Which of the following rephrases the sentence above?

    <p>A report on renewable energy was submitted by a group of students.</p> Signup and view all the answers

    Had the truck driver been more careful, the accident...

    <p>would not have happened.</p> Signup and view all the answers

    Which of the following is a good paraphrase for the passage?

    <p>Girls’ bond over sharing secrets and boys’ preference for doing activities together show gender differences when children socialize.</p> Signup and view all the answers

    Which of the following sentences has a different meaning?

    <p>Technology-mediated communication has changed how people use various media to build relationships.</p> Signup and view all the answers

    Which of the following restates the author’s main idea?

    <p>Anyone is capable of leadership which is defined as influence.</p> Signup and view all the answers

    How can this paragraph be improved?

    <p>Add the phrase 'of spider’s silk' in sentence 4 to improve clarity.</p> Signup and view all the answers

    What is the purpose of sentence 8?

    <p>To conclude the paragraph</p> Signup and view all the answers

    How did telescopes help in discovering the wonders in space?

    <p>Galileo discovered moons orbiting around Jupiter.</p> Signup and view all the answers

    The use of telescopes led to important discoveries. Which sentences support this?

    <p>Sentences 3 and 5</p> Signup and view all the answers

    What pattern of paragraph development is evident in the passage?

    <p>comparison-contrast</p> Signup and view all the answers

    If you are to use the author’s claims to advocate the use of renewable energy, which of the following should be emphasized?

    <p>The use of renewable energy benefits people and the environment.</p> Signup and view all the answers

    How should the information in an infographic based on the passage be presented?

    <p>Show a comparison of renewable energy and fossil fuels.</p> Signup and view all the answers

    Which underlined part of the sentence shows an ERROR? I hope our varsity win

    <p>the basketball championship</p> Signup and view all the answers

    Which underlined part of the sentence shows an ERROR? Ham and cheese are

    <p>my favorite sandwich, while</p> Signup and view all the answers

    Which underlined part of the sentence shows an ERROR? My baby sister always falls

    <p>I sings to</p> Signup and view all the answers

    Choose the option that best expresses the same idea as the sentence below. The cancellation of the Taal field trip turned out to be a blessing in disguise because all who went to Tagaytay are still stuck in traffic jams until now.

    <p>It’s a good thing that the Taal field trip was cancelled because of the typhoon and the traffic jams.</p> Signup and view all the answers

    Choose the option that best expresses the same idea as the sentence below. I know I will pass the scholarship test because I’ve prepared well for it.

    <p>I’ve prepared well for the scholarship test, so I know I will pass it.</p> Signup and view all the answers

    Which of the following pairs of sentences is the conjunction YET best used?

    <p>The student is not feeling well. She still attended her classes.</p> Signup and view all the answers

    The word PERIPHERY is closest in meaning to _____?

    <p>margin</p> Signup and view all the answers

    According to the article, texting allows Filipinos to express what they would not normally say in a face-to-face encounter. This advantage may also have a most harmful effect in that ____?

    <p>Someone could use text messaging to scam the unwary of their money</p> Signup and view all the answers

    Determine the author’s main purpose by judging their best order of relevance from most to least relevant.

    <p>3-4-1-2</p> Signup and view all the answers

    According to the article, Filipinos send over _____ text messages daily.

    <p>200,000,000</p> Signup and view all the answers

    Which sentence is true about Yumi?

    <p>Yumi has been working in the bank since 2009.</p> Signup and view all the answers

    Which of the following is a good paraphrase for this passage?

    <p>Teenage pregnancies can be prevented by stronger programs on sex education and responsible parenting.</p> Signup and view all the answers

    Which of the following sentences has a different meaning?

    <p>The result of the qualifying examination today is what I took last month.</p> Signup and view all the answers

    According to the passage, why is Mathematics considered important?

    <p>Mathematics does not only provide opportunities for improving personal and professional lives of people but also opportunities for developing the economy of a nation.</p> Signup and view all the answers

    Which sentence does not directly support the idea that Mathematics is the key to opportunity?

    <p>Sentences 4</p> Signup and view all the answers

    What is the purpose of sentence 6?

    <p>To conclude the paragraph</p> Signup and view all the answers

    What is the probability that the sum of two balls drawn from a box containing ten prime-numbered balls is even?

    <p>0</p> Signup and view all the answers

    Which sequence is also geometric for any r and s with r = s?

    <p>ab, abr, abs, abr², abs²</p> Signup and view all the answers

    If a + b = 2 and the line ax + by = 16 passes through (3, -2), what is the value of a and b?

    <p>a = 4, b = -2</p> Signup and view all the answers

    Janine invested Php 80,000 at 3.5% annual simple interest. How much will she earn after a year?

    <p>Php 2,800</p> Signup and view all the answers

    If Emma invests Php 120,000 into an internet café and a photo booth, how much must she allot to each business to earn a total of Php 5,800 monthly?

    <p>Internet café: Php 90,000, Photo booth: Php 30,000</p> Signup and view all the answers

    Which of the following must be multiplied to the binomial x - 2y to produce a trinomial?

    <p>x + 2y</p> Signup and view all the answers

    Which statement is true about a right triangle?

    <p>I, II, and III</p> Signup and view all the answers

    Which investment opportunity is better based on total interest earned?

    <p>Investment B because the total interest earned is higher</p> Signup and view all the answers

    Which expressions is equal to sin A?

    <p>I only</p> Signup and view all the answers

    What represents the common friends of Arlene and Bayani based on sets A and B?

    <p>A ∩ B</p> Signup and view all the answers

    Which narrative best describes a Venn diagram representing TV viewing preferences?

    <p>10 are Kapamilya, 8 are Kapuso, while 2 are neither Kapamilya nor Kapuso</p> Signup and view all the answers

    From the first nine prime numbers, can four numbers be chosen to form an arithmetic sequence?

    <p>Yes, the arithmetic sequence is 3, 7, 11, 17.</p> Signup and view all the answers

    If twenty chocolate candies were placed in a jar and one Flat Top was drawn, what is the more likely outcome of picking another candy?

    <p>The chocolate candy is a Flat Top.</p> Signup and view all the answers

    What is the most likely outcome when rolling two six-sided dice?

    <p>The sum is even.</p> Signup and view all the answers

    What is a possible value of z if x = 13, y = 17?

    <p>29</p> Signup and view all the answers

    Which statement is true about triangular numbers?

    <p>I, II and III</p> Signup and view all the answers

    Which of the following equalities is NOT ALWAYS true?

    <p>(X - Y) ∪ Z = (X ∪ Z) ∩ (Y ∪ Z)</p> Signup and view all the answers

    What should be multiplied to a² - ab + b² so that the product is a binomial?

    <p>a - b</p> Signup and view all the answers

    Which equation passes through quadrant I when graphed in the Cartesian plane?

    <p>x + y + 2 = 0</p> Signup and view all the answers

    Arrange the investment opportunities from best to good opportunity based on interest.

    <p>III, II, I</p> Signup and view all the answers

    Which computation correctly shows the amount a farmer owes after borrowing Php 100,000 at 10% annual simple interest?

    <p>100,000 × 1.1 = 110,000 → 110,000 × 1.1 = 121,000</p> Signup and view all the answers

    Which expressions for angles are correct?

    <p>I and III only</p> Signup and view all the answers

    How to compute the height of a 200 m long zip line from the top end, given a 20-degree angle of depression?

    <p>200 cos 20°</p> Signup and view all the answers

    What does A ∪ B represent?

    <p>The combined friends of Arlene and Bayani</p> Signup and view all the answers

    Which three numbers from the sequence 6, 12, 18, 24, 30, 36 can form a geometric sequence?

    <p>6, 12, 24</p> Signup and view all the answers

    Which outcome is most likely when rolling two six-sided dice?

    <p>At least one die is even.</p> Signup and view all the answers

    What is the domain of the function defined by f(x) = x² - 1?

    <p>(−∞, −1] ∪ [1, +∞)</p> Signup and view all the answers

    Which propositional form could represent a specific geometric condition of quadrilaterals?

    <p>(P ∧ Q) → R</p> Signup and view all the answers

    How many rows can Dianne make with a set of 120 building blocks for a triangular wall?

    <p>11</p> Signup and view all the answers

    In a committee of 10 students, how many ways can one select a president, vice-president, a secretary, and a treasurer?

    <p>5040</p> Signup and view all the answers

    If a + b = -3 and the line ax + by = 18 passes through (-1, 2), what is the value of a and b?

    <p>a = -8, b = 5</p> Signup and view all the answers

    What must be the composition of the mixture Jhoanna wants if she buys snacks of peanuts and green peas for Php 62.00?

    <p>Nuts: 600 grams, Green peas: 400 grams</p> Signup and view all the answers

    As the truck accelerates east, what direction is the force exerted by the truck bed on the crate?

    <p>There is no friction force, because the crate isn’t sliding</p> Signup and view all the answers

    Arrange the mediums in order from slowest to fastest sound travel.

    <p>I, II, III</p> Signup and view all the answers

    How many coulombs of charge have passed through a wire with a current of 5 μA in 10 seconds?

    <p>5 x 10^-5 coulombs</p> Signup and view all the answers

    How can gears be used to change the speed of a machine?

    <p>Use two gears of different sizes</p> Signup and view all the answers

    If gear A is turning at 20 RPM, what is the turning rate of gear C with diameters of 2, 4, and 8 inches respectively?

    <p>5 RPM</p> Signup and view all the answers

    What difference in gravitational potential energy occurs if a ball moves from point A to point D on an uneven surface?

    <p>The potential energy at A is greater than at B</p> Signup and view all the answers

    Which correctly shows the direction that heat energy will move between metal blocks of different temperatures?

    <p>A.</p> Signup and view all the answers

    During your piano recital, a pure musical note causes a thin wooden panel to vibrate with the same frequency. This is an example of __________.

    <p>resonance</p> Signup and view all the answers

    What should be multiplied to the binomial x - 2y so that the product is a trinomial?

    <p>x + 2y</p> Signup and view all the answers

    Study Notes

    Overview of SIYENSYA-bilidad 2

    • Aimed at increasing qualifiers for the DOST-SEI Undergraduate Scholarship Examination.
    • Developed to aid graduating senior high school students in science, technology, engineering, and mathematics (STEM) fields.

    Structure of the Review Material

    • Comprised of two main parts:
      • Logical Reasoning: Includes Verbal and Non-Verbal Reasoning sub-tests.
      • Power Test: Contains four sub-tests: English, Science, Mathematics, and Mechanical Technical.

    Logical Reasoning

    • Verbal Reasoning: Measures comprehension, analysis, and interpretation of complex information.
    • Non-Verbal Reasoning: Assesses visualization, transformation of images, and understanding of spatial relationships.

    Power Test Details

    • English: Evaluates grammar, syntax, vocabulary, and reading comprehension.
    • Science: Covers Biology, Chemistry, Physics, and Earth Science, focusing on practical scientific tasks.
    • Mathematics: Tests the understanding of qualitative and quantitative relationships.
    • Mechanical Technical: Examines comprehension of physics concepts and mechanical relationships.

    Authors and Contributors

    • Consultants and Resource Persons: Includes experts from various academic institutions, contributing to different sections of the review.
    • Project Management Staff: Oversees the development and distribution of review materials.
    • Distributed by the Department of Science and Technology - Science Education Institute, Philippines.
    • Strict copyright enforcement against unauthorized reproduction.

    Examination Preparation Strategy

    • Familiarizes students with the types of questions they will encounter.
    • Provides a structured approach to test-taking skills essential for exam success.
    • Includes rationalized answers in the answer key for better understanding.

    Additional Notes

    • Each section is designed to build specific skills relevant to the DOST-SEI scholarship criteria.
    • Encourages engagement with various types of reasoning and problem-solving techniques necessary for academic and professional growth.### Test-Taking Skills
    • Leadership defined as influence can be embraced by everyone, emphasizing that anyone can be a leader based on this definition.
    • Spider silk is among the strongest materials, being five times stronger than steel and able to stretch double its original length before breaking.

    Importance of Telescopes

    • Galileo was the first to utilize telescopes for astronomical observations, discovering moons orbiting Jupiter.
    • Early telescopes established that the sun is the center of our solar system.
    • Advanced telescopes allowed for greater discoveries, including celestial geography and weather.

    Renewable Energy

    • Renewable energy sources are cost-efficient and environmentally friendly compared to fossil fuels.
    • They rely on abundant resources such as wind, sun, water, and organic matter.
    • Fossil fuels, conversely, depend on finite resources, causing potential price increases in electricity.

    Writing and Grammar

    • Error identification in sentences is critical for clear communication, focusing on subject-verb agreement and proper tense usage.

    Mobile Phones and Communication

    • Filipinos send approximately 200 million texts daily, utilizing texting as a form of self-expression and social organization.
    • Texting has potential downsides, including criminal activities and issues like youth gambling.
    • The concept of "smart mobs" illustrates decentralized social movements enabled by technology.

    Mathematics and Its Role

    • Mathematics is essential for personal opportunity, national development, and informed citizenship.
    • It opens up career avenues for students and helps societies compete globally.

    Metabolism

    • Metabolism is the biochemical process converting consumed food and drink into energy.
    • Factors affecting metabolic rate include body size, sex, age, and physical activity.

    Literary Analysis

    • "Blessed are the cockroaches" suggests a commentary on societal resilience and survival, using cockroaches as a metaphor for those marginalized in society.### Poetry Interpretation
    • Main idea of the poem reflects that death is indiscriminate, affecting both the poor and the rich.
    • "Eulogy" means tribute, emphasizing the praise for the roaches' resilience.
    • The author's attitude can be characterized as detached, observing the juxtaposition of life and death.
    • Roaches are depicted as living harmoniously, tolerating each other’s filth.

    Email Structure

    • Essential components of an email include To, Subject, Message, and Signature.

    Vocabulary

    • "Eviction" closely aligns with the meaning of expulsion.

    Biology Concepts

    • Microscopic observation: To achieve 100x magnification with a 20x eyepiece, use an 80x objective.
    • Photosynthesis requires light, water, and carbon dioxide.
    • Diwata, a thick-furred animal, likely suits a tropical rainforest biome.
    • Homologous characters arise from a common ancestor (daisy and orchid example).
    • Spermatogenesis produces sperm continuously, while oogenesis has prolonged interruptions.
    • Blood types from Rico and Cora suggest Cora's genotype is IBi.
    • Coarse adjustment knob is used to sharpen focus on a microscope.

    Ecology and Biomes

    • Pag-asa, a succulent plant, thrives in a desert biome.

    Kinetic Molecular Theory

    • All postulates of the Kinetic Molecular Theory apply, except that lower temperatures increase kinetic energy.

    Chemistry and Reactions

    • The correctly matched chemical name to formula is AlPO4: aluminum phosphate.
    • Non-ionic compound from electronegativity considerations is C3H8.
    • Effective separation of sand, copper, and water involves filtering, then using a magnet for copper.
    • Pigment extraction from Poinsettia leaves best involves boiling, filtering, and chromatography.
    • Properties suggesting a compound is likely ionic include being solid at room temperature and conducting electricity in solution.

    Graphs and Physics

    • A taxi is stationary in graphs labeled A and D.
    • Greatest mechanical work is lifting a 5-kilogram box 3 meters high.
    • Energy consumption ranked by power usage leads to a 100-watt LCD TV being the greatest.

    Atmospheric Processes

    • Ocean energy distribution happens via convection, and the Sun heats the Earth through radiation.

    Astronomy

    • A comet is identified by a tail observed over days.
    • Correct arrangement during a solar eclipse involves Earth between the Sun and Moon.

    Geography and Earth Science

    • Observing sun position indicates it is east at 8 AM and west at 4 PM.
    • Saltwater solution residue is similar to a clastic sedimentary rock.
    • Delta formation occurs with low slope and smooth water flow.
    • Precautions before, during, and after a typhoon involve monitoring weather and packing necessities.

    Mass Wasting and Natural Disasters

    • Landslides are more common on steep slopes with a combination of soil and wet conditions.

    Planetary Science

    • Ceres is classified as an asteroid, identifiable by its 1000-km diameter and solar orbit.

    Electronic Configuration and Chemistry

    • Ground state element with a +16 nuclear charge has an electronic configuration of 1s2 2s2 2p6 3s2 3p4.
    • Empirical formula determination follows a sequence starting with identifying masses and calculating ratios.
    • Nuclides with equal protons, neutrons, and electrons can be identified based on atomic numbers provided.

    Wave Properties

    • The wavelength of a mechanical wave can be determined based on the graph details provided.

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    Siyensya Bilidad 2e Reviewer for DOST JLSS Examination PDF

    Description

    Prepare for the DOST JLSS Examination with this comprehensive reviewer tailored for BS Mechanical Engineering students at President Ramon Magsaysay State University. This quiz covers essential concepts and theories necessary for success in the exam.

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