DGT Vehicle Operation & Maintenance 3

Question 1

What is the recommended action if your vehicle begins to overheat while driving?

Accepted Answer

Turn on the heater and pull over safely

Answer

Turning on the heater draws heat away from the engine, and pulling over safely prevents further damage from continued driving.

Question 2

What does 'tire rotation' accomplish?

Accepted Answer

Moves tires to different positions to even out wear

Answer

Tire rotation moves tires between axle positions to equalize tread wear, extending the life of all four tires.

Question 3

What is the function of the vehicle's serpentine belt?

Accepted Answer

Drives multiple accessories like the alternator, power steering pump, and AC compressor

Answer

The serpentine belt drives multiple engine accessories simultaneously, including the alternator, power steering pump, and air conditioning compressor.

Question 4

How do you know when your vehicle's coolant needs to be flushed?

Accepted Answer

According to manufacturer schedule, typically every 30,000–50,000 miles

Answer

Manufacturers typically recommend flushing coolant every 30,000–50,000 miles as it degrades over time, losing its anti-corrosion and freezing-point-depression properties.

Question 5

What happens if you drive with a broken or missing gas cap?

Accepted Answer

Fuel evaporates and the check engine light may illuminate

Answer

A missing gas cap allows fuel vapors to escape the tank, reducing fuel efficiency and often triggering the check engine light due to EVAP system failure.

(DGT) Directorate-General for Traffic Test Practice Test

(DGT) Directorate-General for Traffic Test Practice Test

DGT Vehicle Operation & Maintenance 3