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The start of every driver’s journey begins with sitting the theory test. We are here to help you succeed! Our mock theory test consists of 40 randomly chosen questions from our huge bank of realistic questions to simulate the actual thing. Get unlimited access to take the test as many times as you like until you feel confident to take the next step.

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ISM Mock Theory Test

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1 / 40

1. Where should you drive while travelling on a dual-carriageway?

Between both lanes.

In the right-hand lane unless you are overtaking.

In the right-hand lane.

In the left-hand lane unless you are overtaking or turning right.

2 / 40

2. What precautions should be taken while overtaking a cyclist on a windy day?

Expect the cyclist to keep in to the left out of your way.

Maintain your course but be prepared to swerve around the cyclist if necessary.

Maintain your course but sound horn to warn cyclist.

Allow extra clearance room in case the cyclist is blown off course.

3 / 40

3. Are you still covered to drive your vehicle if your insurance policy has expired?

Yes, if the vehicle is NCT'd and taxed.

Yes, for up to 48 hours.

No, unless you have a clean driving history.

No.

4 / 40

4. What may occur if an exhaust is worn out on a vehicle?

It causes oil leakage onto the road.

It causes petrol leakage onto the road.

It causes decreased noise and pollution.

It causes smoke and noise pollution to rise.

5 / 40

5. What would be the effect of driving at continuous high speeds?

Reduced fuel consumption.

Only increased fuel consumption in dry weather.

Decreased tyre thread wear.

Increased fuel consumption.

6 / 40

6. Are children who are not secured in a child's safety seat allowed in the front passenger seat?

Yes if held by a parent or other adult.

No.

Yes.

Only if using a safety belt.

7 / 40

7. If you are taking any medication which might affect your driving you should..

Drink a large quantity of coffee before driving.

Only drive in off-peak times.

Consult your doctor as to whether you may drive.

Continue to drive normally if you feel OK.

8 / 40

8. What fuel type/types can be use in a petrol engine?

Green diesel only.

Petrol only.

A mixture of both.

Just petrol and agricultural diesel

9 / 40

9. A child is standing in the space between the front seats. What is the greatest danger of allowing this?

They might be thrown forwards if the brakes are applied suddenly.

They might become carsick.

They might get trapped.

They might impede on the drivers concentration.

10 / 40

10. If an elderly person is crossing at a pedestrian light and it changes to flashing amber, you should..

Sound your horn to make them aware to move quickly.

Wait and allow them to finish crossing.

Flash on your headlights to hurry them on.

Start moving towards them slowly so as not to delay traffic.

11 / 40

11. Where there is a sharp dip in the road ahead you should..

Increase your speed.

Decrease your speed, keep left and watch for hazards or a parked vehicles hidden from your view.

Continue at normal speeds as you are aware what is over the hill.

Move to the centre of the road and change to second gear.

12 / 40

12. What effect would diesel have if spilt on the road surface?

Have no effect.

Make the road more slippery.

Increase tyre noise.

Increase tyre grip.

13 / 40

13. Are musical horns allowed on a vehicle?

Only on vintage cars (cars over 30 years old).

No.

Yes, if not louder than 10 decibels.

Yes, if the car manufacturer permits it.

14 / 40

14. What should the driver of a motorcycle ensure before allowing the passenger to get off over?

The motorcycle is resting on its stand.

The motorcycle is stopped in a safe place.

The passenger gets off onto the pavement.

The motorcycle is secure and at no risk of falling over.

15 / 40

15. How often is it advised that you should service you engine?

Once a year.

As per the manufacturer's specifications.

When there is a problem with the engine.

Every 35000 kilometres.

16 / 40

16. Which passengers is the driver responsible for to ensure that proper restraints/seatbelts are used?

All passengers regardless of age.

Children under 12 only.

Adults only.

Passengers under 17 years of age only.

17 / 40

17. What should a driver do if feeling tired/drowsy?

Drink strong coffee.

Turn on the radio loudly.

Stop - take a break and a short walk if possible.

Turn on the car heater to the maximum level.

18 / 40

18. Should the handbrake be used to bring the vehicle to a stop?

Only in dry conditions.

Yes.

No.

Only in wet conditions.

19 / 40

19. When driving behind a vehicle that is driving erratically or dangerously you should?

Flash your lights to encourage the driver to make way for you.

Stay well back until the road widens enough to let you overtake safely.

Follow close behind the offending vehicle.

Overtake as soon as possible.

20 / 40

20. If a vehicle carrying hazardous cargo has been involved in an accident, you should..

Continue to drive as not to cause further obstruction.

Attempt to move the vehicle to an open space.

Determine the type of hazardous material before summoning help.

Stay clear and contact the emergency services.

21 / 40

21. Where should a learner drivers 'L' plates be displayed?

On both sides of the vehicle.

Front passenger side, rear drivers side.

Front drivers side, rear passenger side.

On the front and rear bumpers only.

22 / 40

22. What does this sign mean?

Turn right ahead.

Steep descent ahead.

Private property ahead.

Keep left.

23 / 40

23. When driving in heavy rain you should?

Drop your gear to get higher revs.

Drive at the same speed as on a dry road.

Keep to the centre of the road.

Take caution of aquaplaning.

24 / 40

24. You wish to use your phone but you are currently driving. What should you do?

Pull in and stop.

Make your call quickly and discreetly with one hand on the steering wheel.

Drive in the hard shoulder while talking on the phone.

Reduce speed and keep watching your rear-view mirrors.

25 / 40

25. What may occur if the headlight lens is broken?

It can cause the bulb to blow.

It can reduce and distort the beam.

It can increase the beam's brightness.

It can increase the bulb beam angle.

26 / 40

26. What does this sign mean?

No parking.

No overtaking.

Road narrows ahead.

No cycling.

27 / 40

27. When is it permissible to drive with full headlights in a built up area at night?

When you can't see properly.

When there is no traffic.

Never.

Between the hours of 11.30 p.m. and 7.00 a.m.

28 / 40

28. What should you do when overtaking a cyclist?

Drive close to the cyclist as not to cross the centre line.

Drive close behind the cyclist till you can overtake.

Allow extra clearance in case the cyclist swerves out .

You should never overtake a cyclist.

29 / 40

29. During scheduled times, which vehicles are allowed to use 'with-flow' bus lane?

All traffic except buses.

Buses on a scheduled service, taxis and cyclists.

Only cyclists.

Buses only.

30 / 40

30. How does alcohol affect the drivers ability to drive a vehicle?

Makes the driver more alert.

It reduces the driver's ability to react.

It has little or no effect.

It increases reaction time.

31 / 40

31. What does this sign mean?

Road ends ahead.

No left turn.

Dangerous bend ahead.

Mini roundabout ahead.

32 / 40

32. What details must you give to the Garda?

Any details requested.

As little as possible in case you get blamed for the accident.

Your name and address and a brief description of the accident.

Date of birth and PPS number.

33 / 40

33. How should infants be secured in a vehicle?

They should be carried in an adult's lap as long as the adult is wearing a seatbelt.

They should be always secured in a child safety seat.

As long as they're placed in the back seat, a child safety seat is not required.

They should be placed in the front passenger seat with an adult.

34 / 40

34. Whilst driving on a road which has loose chippings you should?

Slow down and allow extra clearance to other traffic until you have cleared that particular area of road.

Keep the same speed as you would on 'normal' road surfacing.

Increase speed so as to return to 'normal' road as soon as possible.

Press your thumb against the windscreen or motorcycle faring.

35 / 40

35. When is it permissible to carry more passengers in your vehicle than there are seats available?

Yes, only if they are above the age of fourteen.

Yes, once all passengers are fully insured in the vehicle.

Yes, once they all sit still.

Never.

36 / 40

36. What may occur if you drive closely behind a vehicle you do not intend to overtake?

It will be easier for traffic to overtake you.

It might be more difficult for traffic to overtake you.

Traffic behind you may not see the vehicle in front of you.

Helps your fuel consumption as the vehicle in front breaks air resistances.

37 / 40

37. What is the combined speed of two vehicles involved in a head on collision if they are each travelling at 100 km/h?

150 km/h

50 km/h

100 km/h

200 km/h

38 / 40

38. You want to reverse your vehicle on a busy street, you should..

Use your hazard lights as you turn.

Sound your horn and flash your lights as you reverse.

Listen carefully for the sound of other road users.

Reverse slowly while checking all around you for other road users.

39 / 40

39. You are approaching a roundabout.. Who has right of way?

Vehicles entering the roundabout.

Motorcycles and cyclists.

Vehicles already on the roundabout.

Whichever vehicle is moving quicker.

40 / 40

40. Where should loose bags of shopping be stored?

Stowed away safely in the boot.

Placed on the floor of the front passenger seat.

Placed to either side of the rear passenger seat.

Placed on the floor behind the front seat.

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