Study Guide

Question 1

Regular maintenance for diesel particulate filter consist of?

Answer 1

Regen cycle

Question 2

Checking for exhaust pipe wrap is critical for vehicles equipped with…?

Answer 2

DPF

Question 3

Type of water used on non-maintenance free batteries?

Answer 3

Distilled

Question 4

What does the SAE number of a lubricant indicate?

Answer 4

Viscosity

Question 5

Which gas emitted by automotive battery may create an explosive hazard?

Answer 5

Hydrogen

Question 6

What should be done to pump weekly?

Answer 6

Pump flush

Question 7

During air brake test, the parking brake should automatically set when pressure drops to….?

Answer 7

20-40psi

Question 8

Which device prevents an electrical system overload by shitting down low priority systems before an overload occurs?

Answer 8

Load moniter

Question 9

Device manages start up load of electrical systems activating electrical devices at a timed interval…?

Answer 9

Load sequencer

Question 10

What causes excessive free play in clutch pedal ?

Answer 10

Harsh clashing gear shifting

Question 11

Steering wheel free play shall not exceed?

Answer 11

10 degrees in either direction

Question 12

NFPA requires side to side vehicle weight can not exceed what %?

Answer 12

7%

Question 13

Throw out bearing is part of what system?

Answer 13

Clutch

Question 14

What is the weight of an empty fire truck as it comes of the assembly line called?

Answer 14

Curb weight

Question 15

Maximum weight vehicle can safely be operated on roadways is called?

Answer 15

Gross weight vehicle rating

Question 16

What causes insufficient free play in clutch pedal?

Answer 16

Wear of clutch

Question 17

Air pressure protection valves prevent what?

Answer 17

Activation of air horns