ASVAB PRACTICE TEST 1 QUESTIONS AND ANSWERS 100% SOLVED…GRADE A+
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ASVAB PRACTICE
Institution
ASVAB PRACTICE
ASVAB PRACTICE TEST 1
QUESTIONS AND ANSWERS 100%
SOLVED…GRADE A+
An induction clutch works by - 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? - Length of Effort Arm ÷ Length of R...
ASV AB PRACTICE TEST 1 QUESTIONS AND ANSWERS 100% SOLVED …GRADE A+ An induction clutch works by - 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? - 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 - 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? - r = DR/d, r=16.6666 Springs used in machines are usually made of - steel A clutch is a type of - coupling A single block -and-fall is called a - runner The mechanical advantage of the block -and-tackle arrangement shown below is - 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? - 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? - 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? - Silver is the best conductor, so it becomes hottest If an alternator overcharges the battery, a likely explanation is - The voltage regulator isn't working properly A primary advantage of the electronic ignition system over conventional ignition systems is - The electronic ignition system provides a higher voltage The primary purpose of piston rings is to - seal the combustion chamber and allow the pistons to move freely Connecting rods connect the piston to the - crankshaft In an overhead valve system (OHV), what mechanism opens and closes the valves? - rocker arms The difference between a single -acting and an opposed piston engine is - Single -acting piston engines have one piston per cylinder and opposed piston engines have two A car equipped with limited -slip differential - transfers the most driving force to the wheel with the greatest amount of traction Soft brake -pedal movement can be caused by - air in the hydraulic brake system The safest way to make a hole in sheet metal is to - punch it using a metal punch Nail sets are used to - set nails below the surface of the wood A ripsaw cuts - with the grain of the wood A bucking bar is used to - drive rivets Washers that have teeth all around the circumference to prevent them from slipping are called - shakeproof washers Ohm's law states - Voltage = Current × Resistance. V=IR An electromagnetic -induction device usually has which of the following materials in its core - iron How many diodes should you expect to find in a bridge rectifier? - A bridge rectifier is also known as a full wave rectifier, usually containing 4 diodes Another name for cycles per second is: - hertz When current flows through a wire, the following influences are present - voltage, ohms, amperes Millihenries are related to - inductors Radar can operate at frequencies as high as - 100,000 MHz Radio waves travel - at the speed of light
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