Safety
Basics
Entry Level Knowledge
Wheels/Tires/Wheel Bearings
Maintenance
100

 __________  substances can, when allowed to mix or come into contact with other substances, create harmful gases or start a fire.

Reactive

100

Torx heads use a _______________-sided star-shaped driver.

Six

100

With _____ measurement, technicians use tools such as micrometers, dial calipers, and dial indicators.

Precision 

100

The first _____ numbers of the tire size are the width of the tire, sidewall to sidewall, in millimeters.

Three

100

Coolant level can often be checked by looking at the ______.

Expansion Tank

200

A high concentration of undesirable vapors, gases, or dust can be classified as a

Chemical Hazard

200

Which type of nut is common on steering and suspension components?

Castle

200

A straightedge and feeler gauge are used to measure_____.

Warpage

200

Which term describes the position of the mounting surface compared to the center of the wheel depth?

Wheel offset.

200

Universal coolants are available in full strength and premixed _______ solutions.

50/50

300

A class A fire extinguisher can be used on what type of fires?

Plastic

300

If the number 8.8 is stamped on the head of a bolt, the bolt is a ______ bolt.

Metric

300

What type of energy is developed at the engine crankshaft?

Mechanical

300

____________ tires means removing the wheels and tires from their current location and moving them to another corner of the vehicle.

Rotating

300

The W in 10W-30 viscosity oil stands for _______.

Winter

400

What type of gloves protects your skin from fuels and solvents.

Nitrile.

400

A metric bolt is identified as M10 x 1.50 x 60. What does the 1.50 indicate?

Bolt thread pitch.

400

_________, a form of air pollution, is caused by chemical reactions between exhaust emissions and sunlight.

Smog

400

Underinflation or lack of rotation causes excessive wear on the ________ of the tread.

Shoulders

400

The washer fluid reservoir often has a _____ cap to help identify it as the washer fluid.

Blue

500

What is the most serious type of burn?

Third degree

500

____________________, as it is applied to tightening nuts and bolts, is the amount of twisting force applied over distance.

Torque

500

The amount of side-to-side variation of an object is called ______ runout.

Lateral

500

Which of the following exists if the wheel and/or tire are out-of-round?

Radial runout

500

Ethylene glycol antifreeze _________.

A. is the base product for all OE coolants.

B. is not used as the factory fill in modern vehicles.

C. contains silicates and phosphates.

D. all answers are correct.

D

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