DTT Vehicle Safety

Question 1

How often must a car undergo a National Car Test (NCT) in Ireland for a vehicle first registered more than 10 years ago?

Accepted Answer

Every year

Answer

Cars over 10 years old must undergo the NCT annually. Cars that are 4-10 years old are tested every two years. The first NCT is due when the car is 4 years old.

Question 2

What is the correct procedure for checking your car's engine oil level?

Accepted Answer

Park on level ground, wait for the engine to cool, remove the dipstick, wipe it clean, reinsert it, then remove again to read the level

Answer

To get an accurate oil reading, the car should be on level ground with a cooled engine. Remove the dipstick, wipe it clean, reinsert it fully, then remove it again. The oil level should be between the minimum and maximum marks.

Question 3

What should you check before starting a long journey in your car?

Accepted Answer

Tyre pressure and condition, oil level, coolant level, lights, windscreen washer fluid, and fuel

Answer

Before a long journey, you should check tyres (pressure, tread depth, condition), engine oil, coolant, all lights (headlights, brake lights, indicators), windscreen washer fluid, fuel level, and that mirrors are properly adjusted.

Question 4

What does the ABS (Anti-lock Braking System) warning light on the dashboard indicate when illuminated while driving?

Accepted Answer

A fault with the anti-lock braking system that needs professional attention

Answer

If the ABS warning light illuminates while driving, it indicates a fault in the anti-lock braking system. Normal braking should still work, but the ABS function may not activate in an emergency stop. Have it checked by a mechanic promptly.

Question 5

What is the purpose of the head restraint (headrest) in a vehicle?

Accepted Answer

To reduce the risk of whiplash injuries in a rear-end collision by supporting the head and neck

Answer

Head restraints are a safety feature designed to reduce whiplash injuries by limiting the rearward movement of the head in a rear-end collision. They should be adjusted so the centre of the restraint is level with the top of your ears.

Irish DTT Practice Test

Irish DTT Practice Test

DTT Vehicle Safety