ASVAB practice test 1 |QUESTIONS &
ANSWERS| ALREADY PASSED|
VERIFIED & UPDATED
An induction clutch works by - 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? - 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
- 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? - Answer r = DR/d, r=16.6666
Springs used in machines are usually made of - Answer steel
A clutch is a type of - Answer coupling
A single block-and-fall is called a - Answer runner
The mechanical advantage of the block-and-tackle arrangement shown below is -
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? - 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? - 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? - Answer Silver is the best conductor, so it becomes hottest
If an alternator overcharges the battery, a likely explanation is - Answer The voltage
regulator isn't working properly
A primary advantage of the electronic ignition system over conventional ignition systems
is - Answer The electronic ignition system provides a higher voltage
The primary purpose of piston rings is to - Answer seal the combustion chamber and
allow the pistons to move freely
Connecting rods connect the piston to the - Answer crankshaft
In an overhead valve system (OHV), what mechanism opens and closes the valves? -
Answer rocker arms
The difference between a single-acting and an opposed piston engine is - Answer
Single-acting piston engines have one piston per cylinder and opposed piston engines
have two
A car equipped with limited-slip differential - Answer transfers the most driving force to
the wheel with the greatest amount of traction
ANSWERS| ALREADY PASSED|
VERIFIED & UPDATED
An induction clutch works by - 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? - 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
- 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? - Answer r = DR/d, r=16.6666
Springs used in machines are usually made of - Answer steel
A clutch is a type of - Answer coupling
A single block-and-fall is called a - Answer runner
The mechanical advantage of the block-and-tackle arrangement shown below is -
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? - 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? - 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? - Answer Silver is the best conductor, so it becomes hottest
If an alternator overcharges the battery, a likely explanation is - Answer The voltage
regulator isn't working properly
A primary advantage of the electronic ignition system over conventional ignition systems
is - Answer The electronic ignition system provides a higher voltage
The primary purpose of piston rings is to - Answer seal the combustion chamber and
allow the pistons to move freely
Connecting rods connect the piston to the - Answer crankshaft
In an overhead valve system (OHV), what mechanism opens and closes the valves? -
Answer rocker arms
The difference between a single-acting and an opposed piston engine is - Answer
Single-acting piston engines have one piston per cylinder and opposed piston engines
have two
A car equipped with limited-slip differential - Answer transfers the most driving force to
the wheel with the greatest amount of traction
