DTT Vehicle Safety Checks 3

Question 1

What does a low tyre pressure warning light (TPMS) mean?

Accepted Answer

One or more tyres has pressure significantly below the recommended level

Answer

The TPMS (Tyre Pressure Monitoring System) warning indicates one or more tyres is significantly under-inflated. Check all tyres including the spare and inflate to the correct pressure immediately.

Question 2

What are the dangers of driving with underinflated tyres?

Accepted Answer

Increased stopping distance, poor handling, overheating, and possible tyre failure

Answer

Underinflated tyres increase stopping distance, reduce handling precision, cause excessive heat build-up (leading to potential blowout), and increase fuel consumption.

Question 3

What does the power steering warning light indicate?

Accepted Answer

The power steering system has a fault — steering will be heavier and more difficult

Answer

A power steering warning light indicates a fault in the power steering system. The vehicle may still be steerable but with much greater effort — especially at low speeds and when parking.

Question 4

Before setting off, what is the purpose of adjusting your mirrors correctly?

Accepted Answer

To maximise your field of view and minimise blind spots around the vehicle

Answer

Properly adjusted mirrors (both wing mirrors and rear-view mirror) maximise the driver's field of view to the sides and rear, reducing but not eliminating blind spots.

Question 5

What does the ABS warning light mean if it stays on while driving?

Accepted Answer

The ABS (Anti-lock Braking System) has a fault and may not function in an emergency stop

Answer

If the ABS light stays on, the anti-lock braking system has detected a fault and is likely disabled. Normal braking still works but ABS-assisted emergency stops will not function correctly.

Irish DTT Practice Test

Irish DTT Practice Test

DTT Vehicle Safety Checks 3