Guide QUESTIONSAND CORRECT
ANSWSER
An induction clutch works by - CORRECT ANSWERS 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
ANSWERS 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 ANSWERS 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 ANSWERS
r = DR/d, r=16.6666
Springs used in machines are usually made of - CORRECT ANSWERS
steel
A clutch is a type of - CORRECT ANSWERS coupling
A single block-and-fall is called a - CORRECT ANSWERS runner
The mechanical advantage of the block-and-tackle arrangement shown below is
- CORRECT ANSWERS 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 ANSWERS
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
ANSWERS 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 ANSWERS Silver is
the best conductor, so it becomes hottest
If an alternator overcharges the battery, a likely explanation is - CORRECT
ANSWERS The voltage regulator isn't working properly
A primary advantage of the electronic ignition system over conventional
ignition systems is - CORRECT ANSWERS The electronic ignition
system provides a higher voltage
The primary purpose of piston rings is to - CORRECT ANSWERS seal
the combustion chamber and allow the pistons to move freely
Connecting rods connect the piston to the - CORRECT ANSWERS
crankshaft
In an overhead valve system (OHV), what mechanism opens and closes the
valves? - CORRECT ANSWERS rocker arms