ASVAB practice test 1
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 w...
ASVAB practice test 1
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
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