ASVAB For Idiots PDF Study Guide

ASVAB FOR IDIOTS PiCAT & ASVAB Test Prep  Copyright © 2024 All rights reserved. No part of this book may be used or reproduced in any manner whatsoever without written permission except in the case of brief quotations embodied in critical...

ASVAB FOR IDIOTS PiCAT & ASVAB Test Prep  Copyright © 2024 All rights reserved. No part of this book may be used or reproduced in any manner whatsoever without written permission except in the case of brief quotations embodied in critical articles or reviews. Thank you for buying an authorized edition of this book and for complying with copyright laws by not reproducing, scanning, or distributing any part of it in any form without permission. You are supporting writers and their hard work by doing this. Published in the United States of America First Printing Edition, 2024  TABLE OF CONTENTS Introduction General Science Arithmetic Reasoning Word Knowledge Paragraph Comprehension Mathematics Knowledge Electronics Information Auto and Shop Information Mechanical Comprehension Assembling Objects INTRODUCTION Thank you for picking ASVAB For Idiots. This Q&A study guide is easy to navigate and simple to understand. It follows the principle of the CAT-ASVAB, which is the computer-based version of the Armed Services Vocational Aptitude Battery. That said, this is still suitable if you’re prepping for the P&P-ASVAB — also known as the paper-based version. 04 This prep book is separated into all test categories, which are: General Science Arithmetic Reasoning Word Knowledge Paragraph Comprehension Mathematics Knowledge Electronics Information Auto and Shop Information Mechanical Comprehension Assembling Objects 05 GENERAL SCIENCE GENERAL SCIENCE Q: What is the primary function of a GPS system? A) To detect weather patterns B) To navigate using satellites C) To measure atmospheric pressure D) To monitor soil moisture Q: Which type of energy is stored in food? A) Kinetic energy B) Thermal energy C) Chemical energy D) Nuclear energy Q: What is the pH level of pure water? A) 5 B) 7 C) 9 D) 10 Q: What gas do plants absorb during photosynthesis? A) Oxygen B) Carbon dioxide C) Nitrogen D) Hydrogen Q: What is the principle behind sonar technology? A) Using light waves to detect objects B) Measuring sound waves reflected from objects C) Analyzing electromagnetic radiation D) Utilizing chemical reactions for navigation Q: Which gas is most abundant in Earth's atmosphere? A) Oxygen B) Nitrogen C) Carbon dioxide D) Hydrogen 07 GENERAL SCIENCE Q: Which planet is known as the Red Planet? A) Venus B) Mars C) Jupiter D) Saturn Q: What gas do jet engines primarily expel? A) Carbon monoxide B) Nitrogen C) Water vapor D) Carbon dioxide Q: Which law explains the relationship between the pressure and volume of a gas? A) Newton's Law B) Boyle's Law C) Dalton's Law D) Charles's Law Q: What is the speed of sound in air at sea level? A) Approximately 343 m/s B) Approximately 299,792,458 m/s C) Approximately 100 m/s D) Approximately 1,000 m/s Q: What is the main component of the Earth's core? A) Iron B) Oxygen C) Silicon D) Aluminum Q: What type of energy is generated by moving water? A) Thermal energy B) Kinetic energy C) Chemical energy D) Nuclear energy 08 GENERAL SCIENCE Q: What element do all living organisms require to survive? A) Helium B) Nitrogen C) Carbon D) Neon Q: What property of water allows it to resist changes in temperature? A) High specific heat capacity B) Low density C) High conductivity D) Low viscosity Q: What type of waves are used in radar technology? A) Sound waves B) Electromagnetic waves C) Ocean waves D) Seismic waves Q: What process involves the movement of water from the surface to the atmosphere? A) Condensation B) Evaporation C) Precipitation D) Filtration Q: What is the main source of energy for the Earth's climate system? A) The Moon B) The Earth's core C) The Sun D) Ocean currents 09 ARITHMETIC REASONING ARITHMETIC REASONING Q: If a tank travels 60 miles in 2 hours, what is its average speed in miles per hour? A) 20 mph B) 30 mph C) 40 mph D) 50 mph Q: A squad of 12 soldiers is to be divided into 3 equal teams. How many soldiers will be on each team? A) 2 B) 3 C) 4 D) 5 Q: If a soldier needs 4 liters of water for a 2-day mission, how many liters are needed for a 5-day mission? A) 8 liters B) 10 liters C) 12 liters D) 15 liters Q: A military vehicle can carry 8 soldiers. If there are 32 soldiers, how many vehicles are needed? A) 3 B) 4 C) 5 D) 6 Q: A naval ship uses 500 gallons of fuel in 10 hours. How many gallons of fuel are used per hour? A) 50 gallons B) 75 gallons C) 100 gallons D) 150 gallons 11 ARITHMETIC REASONING Q: If a sailor earns $2,400 per month, what is their annual salary? A) $24,000 B) $28,800 C) $30,000 D) $36,000 Q: A submarine dives 300 feet in 3 minutes. What is the average rate of descent per minute? A) 75 feet B) 100 feet C) 125 feet D) 150 feet Q: A jet flies 1,200 miles in 3 hours. What is its average speed in miles per hour? A) 300 mph B) 400 mph C) 500 mph D) 600 mph Q: If a pilot needs 8 hours of rest before a flight and it's currently 10 AM, at what time can the pilot fly? A) 6 PM B) 8 PM C) 10 PM D) 12 AM Q: A maintenance crew needs to service 18 aircraft in 6 hours. How many aircraft do they service per hour? A) 2 aircraft B) 3 aircraft C) 4 aircraft D) 5 aircraft 12 ARITHMETIC REASONING Q: A Marine squad runs 5 miles in 45 minutes. What is their average speed in miles per hour? A) 6.67 mph B) 5.00 mph C) 4.00 mph D) 7.50 mph Q: If a platoon of 30 Marines needs 90 gallons of water for a mission, how many gallons does each Marine get? A) 2 gallons B) 3 gallons C) 4 gallons D) 5 gallons Q: A Marine fires 120 rounds in 4 minutes. How many rounds are fired per minute? A) 30 rounds B) 40 rounds C) 25 rounds D) 20 rounds Q: A Coast Guard cutter travels 180 miles in 6 hours. What is its average speed in miles per hour? A) 20 mph B) 25 mph C) 30 mph D) 35 mph Q: If a crew of 15 Coast Guardsmen is divided into 3 equal teams, how many members are in each team? A) 3 B) 5 C) 6 D) 7 13 ARITHMETIC REASONING Q: A rescue boat consumes 240 gallons of fuel in 8 hours. How many gallons of fuel does it consume per hour? A) 25 gallons B) 30 gallons C) 35 gallons D) 40 gallons Q:If a soldier needs 2,000 calories per day and they have 10 energy bars, each providing 250 calories, how many energy bars are needed for one day? A) 4 B) 6 C) 8 D) 10 14 WORD KNOWLEDGE WORD KNOWLEDGE Q: Define the word 'fortitude.' A) Courage in facing pain or adversity B) A type of food C) A physical weakness D) A financial gain Q: What is a synonym for 'diligent'? A) Lazy B) Careless C) Hardworking D) Indifferent Q: What does 'ambiguous' mean? A) Clear and concise B) Open to more than one interpretation C) Very specific D) Easily understood Q: What is the meaning of 'tenacious'? A) Easily distracted B) Persistent and determined C) Lacking interest D) Indifferent to success Q: Define the word 'navigational.' A) Related to the act of steering or directing a course B) Pertaining to speed C) Referring to distance D) Connected to communication Q: What is a synonym for 'expedition'? A) Journey B) Delay C) Destination D) Adventure 16 WORD KNOWLEDGE Q: What does 'periscope' mean? A) A device used for underwater navigation B) An optical instrument for viewing above water from below the surface C) A type of sonar D) A navigation chart Q: Define the word 'aviation.' A) The science of flight B) The study of marine biology C) The art of navigation D) The process of land development Q: What is a synonym for 'altitude'? A) Depth B) Height C) Distance D) Width Q: What does 'radar' mean? A) A system for detecting underwater objects B) A method of measuring air pressure C) A technology for detecting distant objects using radio waves D) A device for measuring temperature Q: Define the word 'camouflage.' A) A strategy for disguise B) A type of weapon C) A military formation D) A style of clothing Q: What is a synonym for 'valor'? A) Fear B) Cowardice C) Courage D) Indifference 17 WORD KNOWLEDGE Q: What does 'tactical' mean? A) Random B) Related to strategy C) Unplanned D) Casual Q: Define the word 'buoyancy.' A) The ability to float B) The ability to sink C) The force of gravity D) The speed of a vessel Q: What does 'maritime' mean? A) Related to land B) Related to the sea C) Related to air D) Related to space Q: Choose the word that means the same as 'navigate.' A) Travel B) Steer C) Explore D) Discover Q:Define the word 'strategy.' A) A random action B) A plan of action designed to achieve a long-term goal C) An unplanned event D) A casual approach 29  PARAGRAPH COMPREHENSION PARAGRAPH COMPREHENSION Passage: The Amazon Rainforest, often referred to as the "lungs of the Earth," is the largest rainforest in the world, spanning over 5.5 million square kilometers. It is home to an incredible diversity of plant and animal species, many of which are not found anywhere else. The rainforest plays a vital role in regulating the global climate by absorbing carbon dioxide and producing oxygen. Question: What is the Amazon Rainforest often referred to as? A) The heart of the Earth B) The lungs of the Earth C) The desert of the Earth D) The mountain of the Earth Passage: Mount Everest is the highest peak in the world, standing at 8,848 meters above sea level. It is located in the Himalayas on the border between Nepal and the Tibet Autonomous Region of China. Climbing Mount Everest poses significant challenges due to extreme weather conditions, high altitudes, and the need for specialized equipment. Question: Where is Mount Everest located? A) Andes Mountains B) Rocky Mountains C) Himalayas D) Alps 20 PARAGRAPH COMPREHENSION Passage: The human body is composed of approximately 60% water. Water is essential for various bodily functions, including temperature regulation, nutrient transportation, and waste elimination. Staying hydrated is crucial for maintaining health and well-being, especially during physical activity. Question: What percentage of the human body is composed of water? A) 30% B) 50% C) 60% D) 70% Passage: The Great Barrier Reef is the world's largest coral reef system, stretching over 2,300 kilometers along the northeast coast of Australia. It is home to a vast array of marine life, including various species of fish, coral, and other aquatic organisms. The reef is not only a natural wonder but also a critical habitat that supports biodiversity and tourism. Question: What is the Great Barrier Reef known for? A) Being the largest desert B) Being the largest coral reef system C) Being the highest mountain range D) Being the longest river 21 PARAGRAPH COMPREHENSION Passage: The Great Wall of China is one of the most remarkable architectural feats in history. Stretching over 13,000 miles, it was built to protect Chinese states from invasions. Construction began as early as the 7th century BC, and it includes walls, trenches, and natural barriers. Today, it is a UNESCO World Heritage Site and a symbol of China's enduring strength. Question: What was the primary purpose of the Great Wall of China? A) To serve as a trade route B) To protect against invasions C) To connect different cities D) To mark territorial boundaries Passage: Plants use chlorophyll to capture sunlight, which they then convert into energy through photosynthesis. This process enables plants to produce food for themselves and release oxygen into the atmosphere, making them essential for maintaining life on Earth. Question: What is the role of chlorophyll in plants? A) To absorb water B) To capture sunlight C) To protect from pests D) To produce seeds 22 PARAGRAPH COMPREHENSION Passage: The human body has 206 bones that provide structure and support. Bones also protect vital organs, store minerals, and house bone marrow, where blood cells are produced. The skeletal system works in conjunction with muscles to enable movement and maintain posture. Question: What is one function of bones in the human body? A) To produce enzymes B) To store fat C) To protect vital organs D) To absorb nutrients Passage: Honeybees are important for pollination, which is necessary for the growth of many plants and crops. They collect nectar and pollen from flowers, transferring pollen from one bloom to another, which helps in fertilization. This process not only supports the reproduction of plants but also contributes to biodiversity and food production worldwide. Question: What role do honeybees have in the ecosystem? A) They produce honey exclusively B) They help with pollination C) They eliminate pests D) They provide habitat for other animals 23 PARAGRAPH COMPREHENSION Passage: The ocean covers about 71% of the Earth's surface and plays a vital role in regulating the planet's climate. It acts as a carbon sink, absorbing carbon dioxide from the atmosphere. Marine ecosystems are diverse and include coral reefs, which provide habitat for many species and protect coastlines from erosion. Question: What is one role of the ocean in regulating the Earth's climate? A) Producing fresh water B) Absorbing carbon dioxide C) Increasing land temperatures D) Creating weather patterns Passage: The invention of the wheel revolutionized transportation and trade in ancient civilizations. Initially made of wood, wheels allowed for the creation of carts, making it easier to transport goods over land. This innovation facilitated the growth of economies and helped spread ideas and culture. Question: What was one impact of the invention of the wheel? A) It decreased the efficiency of trade B) It limited the movement of goods C) It facilitated the growth of economies D) It eliminated the need for roads Passage: Trees play an essential role in maintaining ecological balance. They absorb carbon dioxide and release oxygen, contributing to cleaner air. Additionally, forests provide habitat for countless species and are crucial in preventing soil erosion by stabilizing the ground with their root systems. Question: How do trees contribute to cleaner air? A) By absorbing oxygen B) By releasing carbon dioxide C) By absorbing carbon dioxide D) By preventing soil erosion 24 PARAGRAPH COMPREHENSION Passage: The development of renewable energy sources, such as solar and wind power, is crucial for reducing dependence on fossil fuels. These sustainable alternatives help to lower greenhouse gas emissions, combat climate change, and promote energy independence. The transition to renewable energy also encourages innovation in technology and job creation in new industries. Question: What is a benefit of renewable energy sources? A) They increase reliance on fossil fuels. B) They promote climate change. C) They lower greenhouse gas emissions. D) They decrease energy independence. Passage: The Pacific Ocean is the largest and deepest ocean on Earth, covering more than 63 million square miles. It is known for its diverse marine ecosystems, including coral reefs, deep-sea trenches, and a wide variety of fish species. The ocean plays a crucial role in regulating the planet's climate and weather patterns. Question: What is one important role of the Pacific Ocean? A) It is the primary source of freshwater B) It regulates climate and weather patterns C) It serves as a land barrier D) It is the largest desert on Earth 25 PARAGRAPH COMPREHENSION Passage: The signing of the Declaration of Independence in 1776 marked the thirteen American colonies' decision to break away from British rule. This pivotal moment in history was driven by a desire for self-governance and the protection of individual rights. The document outlined the colonies' grievances against King George III and laid the foundation for the United States' democratic principles. Question: What was the purpose of the Declaration of Independence? A) To establish trade agreements with Britain B) To declare war on British forces C) To outline grievances against King George III D) To promote British governance Passage: The human heart is a powerful organ responsible for pumping blood throughout the body. It has four chambers: two atria and two ventricles. The heart beats approximately 100,000 times a day, circulating blood that delivers oxygen and nutrients to cells while removing waste products. Maintaining heart health is crucial for overall well-being. Question: What is the primary function of the human heart? A) To pump blood throughout the body B) To produce oxygen C) To filter waste products D) To regulate body temperature 26 PARAGRAPH COMPREHENSION Passage: The Coast Guard plays an important role in ensuring the safety and security of maritime environments. Its primary mission includes various responsibilities, such as search and rescue operations, maritime law enforcement, and environmental protection. Coast Guard personnel are trained to respond quickly to emergencies, providing assistance to those in distress at sea and ensuring compliance with maritime laws. Their efforts significantly contribute to maintaining safe navigation and protecting the marine ecosystem. Question: What is the primary mission of the Coast Guard? A) Environmental protection B) Maritime law enforcement C) Search and rescue operations D) Naval combat Passage: Effective search and rescue operations require not only swift action but also teamwork and thorough training. The ability to coordinate efforts among various teams and utilize specialized skills is essential for successful rescues. These operations often involve complex logistics, where communication and collaboration can make a significant difference in outcomes. Question: What does the author suggest is essential for effective search and rescue operations? A) Advanced technology B) Teamwork and training C) Larger boats D) Increased funding 27 PARAGRAPH COMPREHENSION Passage: The term 'coastline' refers to the land adjacent to the ocean, which plays a significant role in Coast Guard activities. This area is important for navigation, shipping, and fishing industries, and it is also at risk from environmental threats. The Coast Guard monitors these regions to prevent illegal activities and protect marine resources, ensuring a balance between human use and conservation. Question: In the context of the passage, what does 'coastline' refer to? A) The land adjacent to the ocean B) The interior of a country C) A type of vessel D) A military base Passage: The significance of the Coast Guard extends beyond immediate response efforts. It also involves proactive measures to safeguard maritime environments. Through various programs, the Coast Guard engages in community education about safe boating practices and environmental responsibility. By promoting awareness, they aim to reduce accidents and encourage sustainable use of marine resources. Question: What proactive measure does the Coast Guard engage in? A) Conducting military operations B) Educating the community about safe boating C) Building new ships D) Increasing patrols without public outreach 28 PARAGRAPH COMPREHENSION Passage: Sustainable agriculture focuses on meeting the needs of the present without compromising the ability of future generations to meet their own needs. This approach emphasizes the use of eco-friendly farming practices, reducing chemical use, and conserving water resources. By adopting sustainable practices, farmers can help preserve the environment while producing food efficiently. Question: What is the goal of sustainable agriculture? A) To maximize profit at all costs B) To use as many chemicals as possible C) To ensure long-term food production and environmental health D) To eliminate all forms of farming Passage: The Internet has transformed how we communicate, access information, and conduct business. It allows for instantaneous communication across the globe and provides vast resources for learning and entertainment. However, it also raises concerns about privacy and security, highlighting the need for responsible usage. Question: What is one impact of the Internet on society? A) It decreases access to information. B) It promotes slow communication. C) It raises concerns about privacy and security. D) It limits global interactions. 29 MATHEMATICS KNOWLEDGE MATHEMATICS KNOWLEDGE Question 1: Solve for x: 2x + 5 = 15. A) 5 B) 10 C) 7.5 D) 15 Question 2: What is the area of a rectangle with a length of 10 cm and a width of 5 cm? A) 15 cm² B) 30 cm² C) 50 cm² D) 100 cm² Question 3: If y = 3x + 2 and x = 4, what is the value of y? A) 10 B) 14 C) 20 D) 18 Q: Solve for x: 3x − 7 = 11. A) 5 B) 6 C) 7 D) 8 Q: What is the circumference of a circle with a radius of 7 cm? A) 14 cm B) 21.99 cm C) 43.98 cm D) 50 cm 31 MATHEMATICS KNOWLEDGE Q: If z = 4y + 3 and y = 2, what is the value of z? A) 10 B) 11 C) 12 D) 13 Q: Solve for x: 5x - 9 = 16. A) 1 B) 5 C) 7 D) 3 Q: What is the area of a triangle with a base of 8 cm and a height of 5 cm? A) 20 cm² B) 30 cm² C) 40 cm² D) 50 cm² Q: If w = 2z + 5 and z = 3, what is the value of w? A) 6 B) 11 C) 8 D) 5 Q: Solve for x: 4x + 8 = 20. A) 2 B) 3 C) 4 D) 5 Q: What is the perimeter of a square with a side length of 6 cm? A) 12 cm B) 24 cm C) 36 cm D) 18 cm 32 MATHEMATICS KNOWLEDGE Q: If m = 2n - 3 and n = 5, what is the value of m? A) 7 B) 5 C) 2 D) 10 Q: What is the volume of a cube with a side length of 4 cm? A) 16 cm³ B) 64 cm³ C) 12 cm³ D) 20 cm³ Q: If p = 2q + 7 and q = 3, what is the value of p? A) 10 B) 13 C) 17 D) 20 Q: What is the value of 5^3? A) 15 B) 125 C) 25 D) 30 Q:Solve for x: 7x - 2 = 19. A) 2 B) 3 C) 4 D) 5 33  ELECTRONICS INFORMATION ELECTRONICS INFORMATION Q: What is the unit of electrical resistance? A) Volt B) Ampere C) Ohm D) Watt Q: In a simple circuit, if the voltage is 12V and the resistance is 4 ohms, what is the current? A) 2 A B) 3 A C) 4 A D) 5 A Q: What component stores electrical energy in a circuit? A) Resistor B) Inductor C) Capacitor D) Diode Q: What is the unit of electric current? A) Volt B) Ampere C) Ohm D) Watt Q: In a circuit, if the resistance is 10 ohms and the current is 2 amps, what is the voltage? A) 5 V B) 10 V C) 20 V D) 30 V 35 ELECTRONICS INFORMATION Q: What device converts electrical energy into mechanical energy? A) Generator B) Motor C) Transformer D) Capacitor Q: What is the unit of electrical power? A) Volt B) Ampere C) Watt D) Ohm Q: In a circuit, if the voltage is 24V and the current is 3 amps, what is the resistance? A) 6 ohms B) 8 ohms C) 12 ohms D) 4 ohms Q: What device stores chemical energy and converts it to electrical energy? A) Capacitor B) Inductor C) Battery D) Transformer Q: In a circuit, if the current is 5 amps and the resistance is 2 ohms, what is the voltage? A) 10 volts B) 15 volts C) 5 volts D) 2 volts Q: What component protects a circuit from overcurrent? A) Resistor B) Capacitor C) Fuse D) Inductor 36 ELECTRONICS INFORMATION Q: What is the function of an inductor? A) To store electrical energy B) To amplify signals C) To resist current D) To convert AC to DC Q: Which component is used to measure the voltage in a circuit? A) Ammeter B) Voltmeter C) Ohmmeter D) Wattmeter Q: Which of the following is a semiconductor material commonly used in electronics? A) Copper B) Silicon C) Iron D) Aluminum Q: What is the purpose of an LED? A) To increase voltage B) To convert electrical energy into light C) To store electrical energy D) To measure current Q: What is the purpose of a rectifier in a circuit? A) To convert AC to DC B) To store electrical energy C) To amplify signals D) To measure resistance 37 AUTO AND SHOP INFORMATION AUTO AND SHOP INFORMATION Q: What tool is used to measure tire pressure? A) Caliper B) Pressure gauge C) Torque wrench D) Tire depth gauge Q: What is the purpose of engine oil? A) To clean the engine B) To cool the engine C) To lubricate engine parts D) To fuel the engine Q: Name a common type of wrench used in automotive work. A) Phillips screwdriver B) Allen wrench C) Socket wrench D) Pliers Q: What tool is used to measure the diameter of a pipe? A) Caliper B) Ruler C) Tape measure D) Micrometer Q: What is the purpose of coolant in an engine? A) To lubricate moving parts B) To reduce friction C) To prevent overheating D) To clean the engine 39 AUTO AND SHOP INFORMATION Q: Name a common type of saw used in woodworking. A) Hacksaw B) Circular saw C) Band saw D) All of the above Q: What tool is used to check the alignment of an aircraft's wheels? A) Torque wrench B) Alignment gauge C) Caliper D) Ruler Q: What is the purpose of hydraulic fluid in an aircraft? A) To lubricate engine parts B) To transfer power in hydraulic systems C) To cool the engine D) To fuel the aircraft Q: Name a common type of drill used in maintenance work. A) Hammer drill B) Cordless drill C) Electric screwdriver D) Hand drill Q: What tool is used to tighten bolts to a specific torque? A) Wrench B) Torque wrench C) Ratchet D) Screwdriver Q: Name a common type of file used in metalworking. A) Flat file B) Round file C) Half-round file D) All of the above 40 AUTO AND SHOP INFORMATION Q: What does a carburetor do in an engine? A) Mixes air and fuel B) Ignites the fuel C) Filters exhaust gases D) Lubricates engine parts Q: What is the purpose of a bilge pump on a boat? A) To power the engine B) To remove excess water from the bilge C) To navigate the vessel D) To filter fuel Q: Name a common type of clamp used in woodworking. A) C-clamp B) Hose clamp C) Vise grip D) Spring clamp Q: What is a tap and die set used for? A) Measuring length B) Cutting threads C) Drilling holes D) Soldering metals Q: What is the primary function of a spark plug in an engine? A) To mix air and fuel B) To ignite the fuel-air mixture C) To cool the engine D) To measure engine temperature 41  MECHANICAL COMPREHENSION MECHANICAL COMPREHENSION Q: What principle explains why a boat floats? A) Bernoulli's principle B) Newton's third law C) Archimedes' principle D) Law of conservation of energy Q: How does a lever make work easier? A) By increasing distance B) By increasing force C) By decreasing friction D) By changing direction Q: What is the function of gears in a machine? A) To store energy B) To convert linear motion to rotary motion C) To increase speed or torque D) To provide stability Q: What principle explains how a submarine can surface and dive? A) Bernoulli's principle B) Archimedes' principle C) Newton's third law D) Pascal's principle Q: How does a hydraulic system work? A) By using gears to transfer force B) By compressing air to create movement C) By using liquids to transmit force D) By utilizing electrical circuits 43 MECHANICAL COMPREHENSION Q: What is the function of a piston in an engine? A) To store fuel B) To convert linear motion into rotational motion C) To regulate airflow D) To cool the engine Q: What principle explains how an airplane lifts off the ground? A) Bernoulli's principle B) Newton's third law C) Archimedes' principle D) Conservation of energy Q: How does a turbine engine work? A) By burning fuel to create heat B) By converting mechanical energy to electrical energy C) By compressing air and igniting fuel D) By using wind to turn blades Q: What is the function of a gearbox in an aircraft? A) To reduce fuel consumption B) To transfer power and adjust speed C) To filter oil D) To cool the engine Q: What principle explains the operation of a hydraulic jack? A) Bernoulli's principle B) Pascal's principle C) Archimedes' principle D) Newton's law Q: How does a camshaft function in an engine? A) It controls the timing of the engine valves B) It converts rotary motion to linear motion C) It cools the engine D) It lubricates engine components 44 MECHANICAL COMPREHENSION Q: What is the purpose of a crankshaft in an engine? A) To generate electrical power B) To convert linear motion to rotary motion C) To regulate engine temperature D) To compress fuel-air mixture Q: How does a propeller work to move a boat? A) By generating lift B) By pushing water backwards C) By creating a vacuum D) By harnessing wind Q: What is the function of a rudder on a ship? A) To control speed B) To steer the vessel C) To stabilize buoyancy D) To anchor the ship Q: What is the purpose of a winch on a vessel? A) To raise and lower sails B) To provide propulsion C) To secure cargo D) To measure depth Q: What is the function of a differential in a vehicle? A) To increase fuel efficiency B) To distribute engine power to the wheels C) To filter engine oil D) To regulate the engine temperature 45 ASSEMBLING OBJECTS ASSEMBLING OBJECTS 1 Which figure best shows how the objects in the box will touch if the letters for each object are matched? a b a b Fig 1 Fig 2 Fig 3 Fig 4 A) Fig 1 B) Fig 2 C) Fig 3 D) Fig 4 47 ASSEMBLING OBJECTS 2 Which figure best shows how the objects in the box will touch if the letters for each object are matched? a b a b Fig 1 Fig 2 Fig 3 Fig 4 A) Fig 1 B) Fig 2 C) Fig 3 D) Fig 4 48 Thank you for reading