Tanker Pre Exam

post by HazChem
Saturday November 6, 2021

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1. A pressure relief valve …

Allows the tank to be used at any pressure

Is open when carrying gases

Prevents the build-up of excess pressure

Protects the environment

2. For vehicles carrying hazardous substances, the most appropriate parking place is …

The local supermarket truck park

A public or private vehicle park where the vehicle is not likely to suffer damage from other vehicles;

A vehicle park supervised by an attendant who has been notified of the nature of the load and whereabouts of the driver

A suitable open space, separated from the public highway and from dwellings, where the public does not normally pass or assemble

3. What is a surge plate?

It is a plate with no openings that is fitted in a tank to divide the tank into compartments.

It is a plate fitted to the front of the tank to take the surge pressure in the tank.

It is a plate fixed to the outside of the tank stating the maximum allowable pressure of the tank.

It is a plate with an opening that is fitted in a tank to break the movement of a liquid lengthwise in the tank

4. An excessive flow valve …

Is fitted to fuel tanker to ensure that the storage tank is not overfilled

Are fitted to gas tank to stop the flow of gas if a hose bursts or a coupling fails

Speed up deliveries

Ensure that drivers do not have to open Manlids

5. During the discharge of gas oil by pump, if the vents were not open …

The Scully system would trip the pump

The tank would explode

The tank would catch fire

The tank would implode

6. When tank-containers are carried which of the following is incorrect?

Filling is usually undertaken by plant personnel

The twist-locks must be secured at the front of the container only

The twist-locks must be secured on all four corners of the container

The placards for the substance must be shown on all four sides of the container

7. What is meant by hazard identification number?

It gives the hazard(s) of the dangerous substance

It identifies the dangerous substance

It is the emergency telephone number of the company supplying the dangerous substance

It identifies the environmental hazard of the substance

8. On a tank vehicle requiring a rear protection device there must be a clearance between the rear of the tank and the rear of the bumper of …

100 cm

40 cm

100 mm

14 inches

9. Which of the following is not a precaution taken when filling and discharging tank vehicles?

Secure the vehicle so it cannot move

The tank must be earthed where necessary

The correct type of hose must be used for filling and discharge

The vehicle must be equipped with a spare wheel

10. In relation to tank containers which of the following is correct …

They can only be lifted when empty

They can only be loaded using a closed system

They can only be discharged using a siphon pipe.

They can be lifted from the vehicle when fully loaded

11. When driving a road tanker or vehicle carrying a tank-container, a driver …

Need not take any account of liquid surge within the tank

Should adjust their complete driving technique to take account of liquid surge

Should adjust their acceleration to take account of liquid surge

Should adjust their braking to take account of liquid surge

12. Portable tanks must have an intermediate / leakproofness test every …

5 years

6 years

3 years

2½ years

13. Fixed tanks on a vehicle used to transport dangerous goods must have a periodic / thorough test every …

5 years

6 years

3 years

2½ years

14. If a tank-container has the following orange-coloured plate displayed on both sides, what type of substance does it contain? 1

Environmentally hazardous liquid

Infectious substance

Flammable liquid with a corrosive secondary (additional) hazard

Flammable corrosive gas

15. Pressure discharge can carried out using …

A Pump

A vacuum pump

A compressor

A gravity flow system

16. What is the ullage of a tank?

It is the maximum permissible gross mass of the tank

It is the capacity of the tank

It is the residue or slops left in the tank after it has been discharged

It is the air space (or vapour space) above the liquid in the tank

17. A H.I. number prefixed with the letter X indicates that the substance will react …

Violently with air

By emitting a toxic gas

Dangerously with water

Does not react chemically

18. Why would surge plates be fitted in a single tank with a capacity of 20,000 litres?

To allow numerous drops of a dangerous liquid (resulting in the amount of liquid in the tank being more than 20% but less than 80% of the tanks capacity for much of its journey)

To prevent build-up of static electricity

To prevent overheating

To allow the tank to be filled to at least 90% of its capacity with a toxic liquid

19. The mark for an Elevated Temperature Substance should be shown …

At the rear of a vehicle only

Wherever placards are displayed

At the front of the vehicle only

On both sides of the vehicle only

20. Who is responsible for ensuring that the correct tank is used for the carriage of dangerous substances?

Consignor

Consignee

Health and Safety Authority

Vehicle Drive

21. Under what circumstances may a vehicle transport a portable tank that is half full of a dangerous liquid?

When the capacity of the portable tank is less than 7,500 litres

When the dangerous substance is not flammable

When the capacity of the tank is more than 10,000 litres

When the dangerous substance is an environmentally hazardous liquid

22. When negotiating a roundabout in a road tanker it may rollover at speeds as low as …

25 kph

31 kph

41 kph

49 kph

23. Foot valves/Base valves are …

Always at the bottom and inside the tank

Are the handles on top of the tank, near the manlid

At the side of the tank

In the most suitable position for discharge

24. How is a tanker earthed when delivering fuel to a filling station?

By using the ‘Scully’ system

Coupling the hoses to the fill pipe and the tanker

By using a jump lead attached to an earth rod

There is no need to earth at filling station

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03 Comments

Steve Smith
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