Diesel NOCTI Review # 2

Which of the following should be stored in metal containers for safety?

• metal scraps

• flammable materials

• sharp tools

• welding equipment

On a truck equipped with air brakes, the air governor should cut out between

• 45 to 60 psi

• 65 to 90 psi

• 100 to 110 psi

• 120 to 130 psi

The acceptable range for free travel at the clutch pedal for a Spicer double plate clutch is

• 1/4 to 1/2 inch

• 1/2 to 2 inches

• 1 1/2 to 2 inches

• 3 to 4 inches

The distance a piston travels from its highest position to its lowest position is known as its

• stroke

• cycle

• bore

• displacement

Underinflation of a tire will cause excessive wear on the ______ of the tread.

• center

• sides

• right side

• left side

The main bearing journals of a crankshaft are out-of-round. If the original crankshaft diameter was 3.399-3.400 inches and the new crankshaft is machined .010 inches, the new diameter will be

• 3.409 to 3.410 inches

• 3.398 to 3.399 inches

• 3.389 to 3.390 inches

• 3.388 to 3.389 inches

Which of the following has an average charging circuit voltage of 13.8 to 14.8?

• 9-volt

• 10-volt

• 11-volt

• 12-volt

The exhaust valve dissipates its heat through the valve face and

• spring retainer

• valve lifter

• rocket arm

• valve stem

When the bottoms of a vehicle's wheels are closer together than the tops, the car is said to have

• positive camber

• negative camber

• positive caster

• negative caster

How many pins are in a light cord plug for a standard Tractor/Trailer?

• three

• five

• seven

• nine