310T Preventive Maintenance and Inspection 2

Question 1

What tool is used to measure brake lining thickness on a drum brake system during PM?

Accepted Answer

Dial caliper or purpose-built lining gauge

Answer

Torque wrench

Answer

Outside micrometer

Answer

Feeler gauge

Question 2

Which components are inspected to confirm the air dryer is functioning correctly during PM?

Accepted Answer

Purge valve operation and desiccant cartridge condition

Answer

Intake manifold pressure port

Answer

Turbocharger wastegate actuator

Answer

Fuel filter housing drain

Question 3

What does it indicate when a brake chamber push rod stroke exceeds the maximum allowable limit?

Accepted Answer

The brakes are under-adjusted or excessively worn, reducing braking effectiveness

Answer

The brakes are over-adjusted and applying too tightly

Answer

The brakes are correctly adjusted

Answer

The push rod is too short and must be replaced

Question 4

What type of lubricant is typically specified for steering knuckle king pin bushings during chassis lubrication?

Accepted Answer

NLGI No. 2 multi-purpose lithium complex grease

Answer

Engine oil

Answer

Gear oil 80W-90

Answer

Silicone spray lubricant

Question 5

During a belt inspection, which condition requires immediate replacement of a serpentine or V-belt?

Accepted Answer

Cracks, fraying, glazing, or missing chunks of material

Answer

Light surface dust from normal operation

Answer

Slight color change from aging

Answer

A new belt that is slightly misaligned

Question 6

What information must be documented on a vehicle inspection report (VIR) to maintain a complete maintenance record?

Accepted Answer

All defects found, repairs made, parts used, technician signature, and date

Answer

Only parts that were replaced

Answer

Driver's hours of service log

Answer

Cargo manifest and load weights

Question 7

What is the purpose of the walk-around inspection portion of a commercial vehicle preventive maintenance check?

Accepted Answer

To systematically inspect the vehicle's exterior, tires, lights, and visible undercarriage components

Answer

To verify cargo securement only

Answer

To confirm driver licensing credentials

Answer

To calculate fuel consumption per mile