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Mechanical Comprehension
Asvab Examination
19
Other
Undergraduate 4
09/06/2011

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Cards

Term
Cap screws are ordered(identified)
Definition
DIAMETER,pitch(THREADS per inch),material, hardness, and legnth. Two common types of thread are National Coarse(NC) & National Fine(NF)
Term
a STUD...?
Definition
a headless(round piece of stock) bolt that has threads on both ends. Usually one will have NF threads and the other side NC threads
Term
To find the wrench size of a cap screw, etc...?
Definition
Measure across the flats of its hexagon head
Term
Dial indicator.....
Definition
uses a guage to register movement. It is used to measure variations in dimensions and backlash(clearance) betwen two meshed gears(ie:checking Ringing & pinion backlash)
Term
An oscilloscope is used to diagnose problems in....
Definition
the IGNITION system. It shows changes in voltage that occurs in the ignition system.
Term
A special type of turning tool that is equipped with a guage....
Definition
TORQUE WRENCH...(it is used to tighten nuts & bolts to a specified torque or tightness)(ie: used to adjust the preload on a front wheel bearing)
Term
An OHMMETER is....
Definition
a test instrument that measures the resistance in an electrical circuit.
Term
Resistance is
Definition
the opposition to the flow of current through a circuit.
Term
Hydrometer is used to test.....
Definition
the specific gravity of ie: antifreeze solution. It compares the weight of the antifreeze solution to water.
Term
Helical gears have what type of teeth....?
Definition
Slanted Teeth
Term
Spur gears have ........Teeth?
Definition
SPUR
Term
Hypoid & spirial gears have.......or .......teeth!
Definition
Curved or Beveled teeth
Term
An example of CONDENSATION..
Definition
Moisture forming on the inner surface of a windshield on a cold day (occurs when a gas or vapor changes to a liquid)
Term
TORQUE
Definition
Turning effort
Term
What does the DIFFERIENTIAL do....
Definition
..connects the driveshaft to the rear axle, increases engine torque through gear reduction.
Term
How does one calculate the GEAR RATIO to  REAR AXLE...
Definition
DIVIDE # OF TEETH ON THE PINION GEAR / INTO NUMBER OF TEETH ON THE RING GEAR..... or in simple terms>>>>> r=D(number of teeth on gear)*R(revolutions of gear) /number of teeth on second gear
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