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ASVAB practice test 1, Questions and answers. 2022 update. Graded A+

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ASVAB practice test 1, Questions and answers. 2022 update. Graded 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 materialsA 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

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