延安摩托车科目四英文版app

1. At the scene of a traffic accident, once there is a leakage of toxic and harmful substances, people must be evacuated at the first time and alarmed immediately.

Answer: Y

2. Gun powder, explosives and detonating powder belong to which of the following dangerous chemicals?

A. Oxidizing materials

B. Inflammable solid materials

C. Explosives

D. Self-igniting articles

Answer: C

3. When rescuing a wounded person who has been poisoned by toxic gas, the first measure is to send him/her to a place with fresh air so that he/she will not continue to be poisoned.

Answer: Y

4. When removing a wounded person suffering spinal fracture, the rescuer should never help the wounded person to walk. He may be carried away with a soft stretcher.

Answer: N

5. What is the meaning of this sign?

A. Sharp right curve

B. Bypass from right side

C. Continuous curves

D. Sharp left curve

Answer: A

6. How should lamps be used by the motor vehicle driver who follows a vehicle on a road section at night where he street light condition is good?

A. Turn off the headlamp

B. Use high-beam

C. Turn off all lamps

D. Use low-beam

Answer: D

7. What is the meaning of this sign?

A. School area

B. Watch for children

C. Crosswalk

D. Watch for pedestrians

Answer: B

8. What is the meaning of this sign?

A. A manned level crossing

B. Multi-crossing of railway and road

C. Grade separation level crossing

D. An unmanned level crossing

Answer: A

9. When a gas tanker is leaking heavily, which of the following measures is wrong?

A. Cut off the power

B. Wear gas mask and protect gloves

C. Turn off the valve to stop leaking

D. Evacuate people to the leeward side

Answer: D

10. What is the meaning of this sign?

A. Stop to yield

B. No stopping temporarily

C. No entry

D. No long stopping

Answer: A

11. The first-aid measure to rescue a poisoned person is to _______.

A. Take warming-up measures

B. Bring him to a place where air is fresh

C. Give him artificial respiration

D. Depress the heart over the chest

Answer: B

12. Rescue personnel should check the breath of the unconscious person before applying any other emergency treatment.

Answer: Y

13. When the tire pressure is too low, what can happen when driving at a high speed?

A. Tire pressure will be unstable

B. Tire pressure will increase

C. Driving resistance will decrease

D. The tire will burst

Answer: D

14. What is the meaning of this sign?

A. Steep downhill road

B. Continuous up slopes

C. Steep uphill road

D. Embankment road

Answer: C

15. When rescuers enter the scene to rescue the wounded after harmful gas leakage caused by traffic accidents, they must wear air respirators or cover their mouth and nose with wet towels.

Answer: Y

16. What is the meaning of this sign?

A. No U turn

B. No changing to left lane

C. No turning left

D. No entering the left lane

Answer: C

17. What is the meaning of this sign?

A. No passing

B. Driving at reduced speed

C. Time limit for entering

D. No entering

Answer: A

18. When a motor vehicle stops in snow, which lamp should be turned on?

A. Front and rear fog lamps, clearance lamp and rear position lamp

B. Reverse lamp, clearance lamp and rear position lamp

C. Headlamp, clearance lamp and rear position lamp

D. Hazard lamps, clearance lamp and rear position lamp

Answer: D

19. When encountering a vehicle in front ascending on a mountainous road covered with ice and snow, what should the motor vehicle driver do?

A. Ascend after the vehicle in front passes the slope

B. Overtake the vehicle in front swiftly and drive on

C. Overtake the vehicle in front with a slow speed and drive on

D. Follow the vehicle in front closely

Answer: A

20. When following other vehicles on the uphill section of a mountain road, what should the driver do if the vehicle in front stops?

A. Overtake from either side of the front vehicle

B. Stop close to the vehicle in front

C. Stop with a larger space from the vehicle in front

D. Sound the horn continuously to warn the other driver

Answer: C