ASVAB practice test 1|77 Questions with Verified Answers,100% CORRECT

ASVAB practice test 1|77 Questions with Verified Answers An induction clutch works by - CORRECT ANSWER magnetism If a first class lever with a resistance arm measuring 2 feet and an effort arm measuring 8 feet are ...

ASVAB practice test 1|77 Questions with Verified Answers An induction clutch works by - CORRECT ANSWER magnetism If a first class lever with a resistance arm measuring 2 feet and an effort arm measuring 8 feet are being used, what's the mechanical advantage? - CORRECT ANSWER Length of Effort Arm ÷ Length of Resistance Arm. MA = 8 ÷ 2 = 4 The force produced when a boxer's hand hits a heavy bag and "bounces" off it is called - CORRECT ANSWER recoil If Gear 1 has 25 teeth and Gear 2 has 15 teeth, how many revolutions does Gear 2 make for every 10 revolutions Gear 1 makes? - CORRECT ANSWER r = DR/d, r=16.6666 Springs used in machines are usually made of - CORRECT ANSWER steel A clutch is a type of - CORRECT ANSWER coupling A single block-and-fall is called a - CORRECT ANSWER runner The mechanical advantage of the block-and-tackle arrangement shown below is - CORRECT ANSWER 2. Because this block-and-tackle arrangement merely changes the direction of the pull, it has a mechanical advantage of only 2. If a house key, a wooden spoon, a plastic hanger, and a wool jacket are all the same temperature, which one feels the coldest? - CORRECT ANSWER The key will feel coldest because metal is a better conductor than the other materials A way to determine the amount of power being used is? - CORRECT ANSWER The formula for determining power is Power = Work ÷ Time. A wood tool, a silver tool, and a steel tool are placed in boiling water for cleaning. Which tool gets the hottest? - CORRECT ANSWER Silver is the best conductor, so it becomes hottest If an alternator overcharges the battery, a likely explanation is - CORRECT ANSWER The voltage regulator isn't working properly A primary advantage of the electronic ignition system over conventional ignition systems is - CORRECT ANSWER The electronic ignition system provides a higher voltage The primary purpose of piston rings is to - CORRECT ANSWER seal the combustion chamber and allow the pistons to move freely Connecting rods connect the piston to the - CORRECT ANSWER crankshaft In an overhead valve system (OHV), what mechanism opens and closes the valves? - CORRECT ANSWER rocker arms The difference between a single-acting and an opposed piston engine is - CORRECT ANSWER Single-acting piston engines have one piston per cylinder and opposed piston engines have two A car equipped with limited-slip differential - CORRECT ANSWER transfers the most driving force to the wheel with the greatest amount of traction Soft brake-pedal movement can be caused by - CORRECT ANSWER air in the hydraulic brake system The safest way to make a hole in sheet metal is to - CORRECT ANSWER punch it using a metal punch Nail sets are used to - CORRECT ANSWER set nails below the surface of the wood A ripsaw cuts - CORRECT ANSWER with the grain of the wood A bucking bar is used to - CORRECT ANSWER drive rivets Washers that have teeth all around the circumference to prevent them from slipping are called - CORRECT ANSWER shakeproof washers Ohm's law states - CORRECT ANSWER Voltage = Current × Resistance. V=IR An electromagnetic-induction device usually has which of the following materials in its core - CORRECT ANSWER iron How many diodes should you expect to find in a bridge rectifier? - CORRECT ANSWER A bridge rectifier is also known as a full wave rectifier, usually containing 4 diodes Another name for cycles per second is: - CORRECT ANSWER hertz When current flows through a wire, the following influences are present - CORRECT ANSWER voltage, ohms, amperes Millihenries are related to - CORRECT ANSWER inductors Radar can operate at frequencies as high as - CORRECT ANSWER 100,000 MHz Radio waves travel - CORRECT ANSWER at the speed of light Changing alternating current to direct current is called - CORRECT ANSWER AC to DC is a process called rectification Insulated fittings can be used to splice wires, thus eliminating the need for - CORRECT ANSWER soldering the wires together How many wires do serial cables used on computers have? - CORRECT ANSWER 9 To produce greater storage of electrons and more capacitance, capacitors should - CORRECT ANSWER be connected in parallel A light bulb is 60 watts. Operated at 120 volts, how much current does it draw? - CORRECT ANSWER Power = Current × Voltage or, written another way, Current = Power/Voltage. 60/120 = 0.5 ampere A fuse with a higher-than-required rating used in an electrical circuit - CORRECT ANSWER may not work properly Neutral wire is always: - CORRECT ANSWER whitish or natural To measure electrical power, you would use a - CORRECT ANSWER wattmeter secure - CORRECT ANSWER safe assimilate - CORRECT ANSWER absorb proficient - CORRECT ANSWER adept plenary - CORRECT ANSWER full goad - CORRECT ANSWER incite headlong - CORRECT ANSWER recklessly flagrant - CORRECT ANSWER glaring opposite of stimulate - CORRECT ANSWER arrest legacy - CORRECT ANSWER bequest unconscionable - CORRECT ANSWER excessive laudable - CORRECT ANSWER commendable burnished - CORRECT ANSWER polished oblique - CORRECT ANSWER obscure superfluous - CORRECT ANSWER unnecessary opposite of hypocrisy - CORRECT ANSWER honesty garrison - CORRECT ANSWER fort fiscal - CORRECT ANSWER financial domicile - CORRECT ANSWER home abate - CORRECT ANSWER end to commission - CORRECT ANSWER to authorize succinct - CORRECT ANSWER concise demise - CORRECT ANSWER death burrow - CORRECT ANSWER nestle prevails - CORRECT ANSWER persists contravene - CORRECT ANSWER obstruct chasm - CORRECT ANSWER hole susceptible - CORRECT ANSWER gullible A series of cell divisions that results in the formation of an embryo is called - CORRECT ANSWER mitosis The process by which energy is provided at the cellular level is called - CORRECT ANSWER metabolism Light waves travel at a rate of about - CORRECT ANSWER 186,000 mps The largest moon in the solar system is - CORRECT ANSWER Ganymede Which inorganic substance is present in the greatest quantity inside animal cells? - CORRECT ANSWER water Cell protoplasm is made up mostly of: - CORRECT ANSWER water The chamber of the heart that pumps blood to the lungs is called the - CORRECT ANSWER right ventricle The atomic number of an atom is determined by - CORRECT ANSWER # of protons How many planets in the solar system have rings? - CORRECT ANSWER 4 Not counting the sun, the closest star to the Earth is - CORRECT ANSWER Proxima Centauri