CSCS Services Mock Test

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Specialists Test

HVACR - Services and Facilities Maintenance

1 / 46

Before starting work on a particular piece of equipment, who or what should you consult?

The store person

The operation and maintenance manual for the equipment

The manufacturer's data plate

The machine brochure

2 / 46

Who should be informed if a legionella outbreak is suspected?

A coroner

The nearest hospital

The police

The Health and Safety Executive (HSE)

3 / 46

What action should you take if a natural gas leak is reported in a closed area?

Ventilate the area and phone the gas emergency service

Wear safety footwear

Establish whether or not it is safe to enter

Turn off the light

4 / 46

What would you use to find out whether a wall into which you are about to drill contains an electric supply?

A hammer and chisel

A neon screwdriver

A multimeter

A cable tracer

5 / 46

In the normal office environment what should be the hot water temperature at the tap furthest from the boiler, after it has been run for one minute?

At least 50°C

At least 100°C

At least 35°C

At least 15°C

6 / 46

Which of the following actions should you take if a refrigerant leak is reported in a closed area?

No action is required, as refrigerant gas is completely harmless

Leave the system running until all of the gas has leaked out and then make a repair

Trace the leak and try to make a temporary repair

Switch off the system, ventilate the area and test to establish if it is safe to enter

7 / 46

How should an adequate supply of breathable fresh air be provided in a confined space when breathing apparatus is not being worn?

An opening at the bottom of the confined space

Forced mechanical ventilation

An opening in the top of the confined space

Natural ventilation

8 / 46

How is legionella transmitted?

Through contact with dirty clothes

Through human contact

By breathing contaminated airborne water droplets

Via rat urine

9 / 46

Which two of the following should a person who is going to work alone carry out to ensure their safety?

Only work outside of normal working hours

Notify the site manager of the details of the work

Ensure their timesheet is accurate and countersigned

Make sure that somebody regularly checks that they are OK

10 / 46

What should you consider first when planning to work in a confined space?

Whether the work could be done in another way to avoid the need to enter the confined space

Whether the job has been priced properly

Whether the correct tools have been arranged

Whether sufficient resource has been allocated

11 / 46

How should access to a riser be controlled?

By a site security operative

By the main contractor

By a permit to work system

By those who are working in it

12 / 46

What is required before a pressure system can be operated?

A hot-work permit

A written scheme of examination

A minimum of two competent persons to operate the system

Operative certification

13 / 46

What is the correct action to take if natural gas is detected in an underground service duct?

No action, as it is not harmful

Evacuate the duct

Carry on working until the end of the shift

Carry on working but do not use electrical equipment

14 / 46

When assembling a mobile access tower what major hazard must you be aware of?

False ceilings

Overhead service cables

Cable trays

Water pipes

15 / 46

What should you do if, when carrying out a particular task, the correct tool is not available?

Wait until you have the appropriate tool for the task

Modify one of the tools you have

Use the best tool available in the toolkit

Borrow a tool from the building caretaker

16 / 46

When positioning and erecting a stepladder, which of the following is essential for its safe use?

It has a tool tray towards the top of the steps

The restraint mechanism is spread to its full extent

You will be able to reach the job by standing on the top step

Your supervisor has positioned and erected the steps

17 / 46

What are the two main safety considerations when using oxyacetylene equipment in a confined space?

The burner will be hard to light

Unburnt oxygen may cause an oxygen-enriched atmosphere

The hoses may not be long enough

Wearing the correct goggles

The risk of a flammable gas leak

18 / 46

What is used to reduce 230-volts to 110-volts on site?

Transformer

Residual current device (RCD)

Circuit breaker

Step-down generator

19 / 46

What colour power outlet on a portable generator would supply 230-volts?

Yellow

Black

Blue

Red

20 / 46

While working on your own and tracing pipework in a building, you notice that the pipes enter a service duct. What should you do?

Stop work until a risk assessment has been carried out

Put on your personal protective equipment (PPE) and carry on with the job

Ask someone in the building to act as your second person

Go into the service duct and continue to trace the pipework

21 / 46

What is the ideal temperature for legionella to breed?

Between 20°C and 45°C

Below 20°C

Between 75°C and 100°C

Between 45°C and 75°C

22 / 46

What must you do before adding inhibitor to a heating system?

Check for leaks on the system

Bleed the heat emitters

Raise the system to working temperature

Read the COSHH assessment for the product

23 / 46

If you arrive on site and find the mains isolator for a component is switched off, what should you do?

Ask people around the building and, if no-one responds, switch it on and get on with your work

Contact the person in control of the premises

Switch it on and check the safety circuits to see if there is a fault

Switch it on and get on with your work

24 / 46

Which two of the following are classed as pressure systems?

Cold water systems

Domestic heating systems

Office tea urns

Steam systems

Medium and high temperature hot water systems at or above 95°C

25 / 46

When arriving at an occupied building, who or what should you consult to find out about any asbestos in the premises before starting work?

The building's logbook

The building's receptionist

The person responsible for the building, so you can view the asbestos register

The building’s caretaker

26 / 46

When should the use of a permit to work be considered?

At the beginning of each shift

When there is enough time to complete the paperwork

For all equipment isolations

For all high-risk work activities

27 / 46

Which type of power drill is most suitable for fixing a run of pipework outside in wet weather?

Battery-powered drill

Any mains voltage drill with a power breaker

Drill with 24-volt power supply

Drill with 110-volt power supply

28 / 46

When removing some panelling, you see a section of cabling with the wires showing. What should you do?

Only work when the cable has been isolated or repaired by a competent person

Carry on with your work, trying your best to avoid the cables

Wrap the defective cable with approved electrical insulation tape

Touch the cables to see if they are live, and if so refuse to carry out the work

29 / 46

What is the first thing you should do after getting on to the platform of a correctly erected mobile tower?

Make sure that the tower does not rock or wobble

Check that the brakes are locked on

Close the access hatch to prevent falls of personnel, tools or equipment

Check for overhead power lines

30 / 46

Why is temporary continuity bonding carried out before removing and replacing sections of metallic pipework?

To maintain the live supply to the electrical circuit

To prevent any chance of corrosion to the pipework

To provide a continuous earth for the pipework installation

To prevent any chance of blowing a fuse

31 / 46

Who should fit a padlock and tag to an electrical lock-out guard?

The senior engineer

Only the person who fitted the lock-out guard

Anyone working on the system

The site supervisor

32 / 46

Where might you find information on the safe way to maintain the services in a building?

The noticeboard

The health and safety file for the building

The safety officer

The local Health and Safety Executive (HSE) office

33 / 46

What precaution should be taken to protect against lighting failure in a confined space?

Ensure it is daylight when you do the work

Remember where you got in

Secure a rope near the entrance and trail it behind you so that you can trace your way back

Each operative should carry a torch

34 / 46

What should be the maximum temperature for a cold water supply, after it has been run for one minute?

35°C

10°C

20°C

50°C

35 / 46

When must a shaft or pit be securely covered or have double guard-rails and toe-boards installed?

At a fall height of 1 m

At a fall height of 2.5 m

At a fall height of 3 m

When there is a potential risk of anyone falling into it

36 / 46

Which of these statements is true in relation to the water used in cooling systems?

It should be chilled

It should be chemically treated

It should be replaced annually

It should be drinking water

37 / 46

Before working on electrically powered equipment, what is the procedure to make sure that the supply is dead before work starts?

Test the circuit, switch off and isolate the supply at the mains board

Switch off, isolate the supply at the mains board, lock out and tag

Switch off and remove the fuses

Switch off and cut through the supply with insulated pliers

38 / 46

Which of the following should you not do when replacing the filters in an air-conditioning system?

Wear a respirator

Wear appropriate overalls

Put the old filters in a dustbin

Follow a job-specific risk assessment and method statement

39 / 46

When carrying out solvent welding on plastic pipework, what particular safety measure must you apply?

It must be done in daylight

The supervisor must be present

The area must be well ventilated

The area must be enclosed

40 / 46

How should liquefied petroleum gas (LPG) cylinders be carried to and from premises in a van?

In the passenger footwell of the van

In the van with all the windows open

In the back of the van

In a purpose-built container within the rear of the van, with appropriate signage

41 / 46

What is the procedure for ensuring that the electrical supply is dead before replacing an electric immersion heater?

Switch off and test the circuit

Lock off the supply, isolate at the mains board, test the circuit and hang a warning sign

Switch off and cut through the electric cable with insulated pliers

Switch off and disconnect the supply to the immersion heater

42 / 46

What must you ensure to prevent unauthorised access to an unoccupied plant or switchgear room?

That the power supply is isolated

That the access door is locked

That a sign is posted

That a person is posted to prevent access

43 / 46

If you spill some oil on the floor and you do not have any absorbent material to clean the area, what should you do?

Do nothing, as it will eventually soak into the floor

Keep people out of the area and inform your supervisor

Spread it about to lessen the depth

Warn other people as they tread through it

44 / 46

What is required if there is a cooling tower on site?

Inspections by the water supplier

A formal logbook

A written scheme of examination

Regular visits by the Local Authority Environmental Health officer

45 / 46

After servicing a gas boiler, what checks must you make by law?

Check the pressure relief valve

Check for flueing, ventilation, gas rate and safe functioning

Check the thermostat setting

Check for water leaks

46 / 46

Which of the following is the most likely place to find legionella?

In a river

In drinking water

In hot water taps above 50°C

In infrequently used shower heads

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