# 4th Class Boiler 1

50 Questions | Total Attempts: 216

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• 1.
One cubic metre is equal to:
• A.

1 cubic decimetre

• B.

100 cubic decimetres

• C.

1000 cubic centimetres

• D.

1000 litres

• 2.
ONE WATT IS EQUAL TO?
• A.

1 ampere

• B.

1 coulomb

• C.

1 joule/s

• D.

1 newton metre

• 3.
Which of the following numbers are integers: 1.15  2.10 3. 15   4.25
• A.

1, 2 and 3

• B.

1, 2, 3 and 4

• C.

1, 3 and 4

• D.

2, 3 and 4

• 4.
Which of the following are prime numbers? 1. 2        4. 13 2. 5   3.7   5.29
• A.

1, 2 , 3 and 5

• B.

1, 3 and 4

• C.

2, 3 and 4

• D.

1, 2, 3 and 4

• E.

1, 2, 3, 4 and 5

• 5.
Solve: b2 x b-2
• A.

B

• B.

B4 + 1

• C.

1

• D.

-4b

• E.

B4

• 6.
Distance is:
• A.

Always a vector quantity

• B.

A scalar quantity

• C.

Measured in a straight line

• D.

Velocity /time

• 7.
When a simply supported beam is loaded with a mass of 1 tonne acting at the centre of the beam, the reaction at each end of the beam is:
• A.

0.4905 kN

• B.

4.905 kN

• C.

49.05 kN

• D.

0.4905 kN

• 8.
An example of a vector quantity is:
• A.

Speed

• B.

Velocity

• C.

Distance

• D.

Magnitude

• 9.
Thermodynamics is that branch of physics which deals with:
• A.

The measurement of heat

• B.

The transfer of heat into other forms of energy

• C.

The relationship between temperature and the electrical condition in metals

• D.

The conversion of energy into heat

• 10.
• A.

148.6°C

• B.

156.26°C

• C.

155.5°C

• D.

158.8°C

• 11.
The temperature of a body is a measure of:
• A.

The quality of heat in the body

• B.

The quantity of heat in the body

• C.

The quantity of cold in the body

• D.

The quantity of electrons in the body

• 12.
The evaporation of a liquid:
• A.

Takes place at any temperature.

• B.

Increases as the pressure upon the liquid increases.

• C.

Is a physical change

• D.

Is a chemical change.

• 13.
Where more than one view is shown in a drawing,
• A.

Width is common to the front and top views.

• B.

Height is common to the front and side views.

• C.

Depth is common to the top and side views.

• D.

Hidden lines are used.

• E.

All of the above

• 14.
A power plant log book:
• A.

Should record all important events which occur during a shift and be signed by the person in charge of the shift

• B.

Should record only start up and shut down dates of equipment

• C.

Should not include information which is recorded elsewhere

• D.

Should be maintained and signed by the chief engineer only

• 15.
Section 7, "Rules for Care of Power Boilers" of the ASME Code Book are:
• A.

Rules that are strictly enforced by the ASME

• B.

Suggested rules to promote safety in boiler operation

• C.

Applicable only to large high pressure boilers

• D.

Rules developed to produce best economy of operations

• 16.
When working inside a boiler the maximum voltage of the lights you must use is:
• A.

12 volts

• B.

220 volts

• C.

110 volts

• D.

220 volts or less provided you are grounded

• 17.
A safety committee is responsible for:
• A.

Repairing safety devices on equipment

• B.

Supplying special courses

• C.

Setting down the safety policy of the plant

• D.

Promoting all safety aspects in the plant

• 18.
Power house accidents may involve electrical or mechanical hazards. To reduce mechanical hazards the operator should:
• A.

Open all valves as quickly as possible to increase pressure

• B.

Shut all valves as quickly as possible to maintain pressure

• C.

Open and shut all valves under full load to minimize leakage

• D.

Open and shut all valves slowly, allowing pressure to equalize

• 19.
A lock-out procedure for a boiler, pressure-vessel, pump or electrical equipment being repaired or serviced is to:
• A.

Lock and tag the control device in an inoperative position

• B.

Lock only the main disconnect so that repairs can be performed

• C.

Lock and tag only equipment that can be remotely started

• D.

Tag and lock equipment but leave key in main office so that maintenance can be performed

• 20.
M.S.D.S. means;
• A.

Material Specification Data System

• B.

Material Safety Data Sheet

• C.

Manufacturers Safety Data Sheet

• D.

Manufacturers Specification Data Sheet

• 21.
Three different extinguishing media used on fires are:
• A.

Dry powder, foam, oxygen.

• B.

Water, dry powder, carbon dioxide.

• C.

Dry powder, carbon monoxide, water.

• D.

Foam, water, sulphur dioxide.

• 22.
Which of the following extinguishers would ordinarily be used to combat a class "C" fire? 1. carbon dioxide 3. dry chemical 2. foam 4. Water
• A.

1, 2

• B.

1, 4

• C.

1, 3

• D.

2, 4

• 23.
You notice one of the men you are working with lying on the ground. If you find that his breathing has stopped you would:
• A.

Give him something to drink and then send for help

• B.

Start artificial respiration immediately and summon help

• C.

Send for a doctor

• D.

Cover him with a blanket and run for help

• 24.
The first action of plant personal upon finding an unplanned environmental excursion is:
• A.

Report the incident to OH&S

• B.

Report the incident to Provincial Environmental Authorities

• C.

Report the incident to E.R.C.B.

• D.

Minimize and control the release

• 25.
The most proficient method of dealing with environmental impacts due to wastes is to:
• A.

Avoid the generation of hazardous waste

• B.

Ensure it conforms with Transport of Dangerous Goods Act

• C.

Ensure that disposal of material waste conforms with required legislation

• D.

Conduct periodic inspections of the company used to dispose of hazardous waste

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