CITB CITB Electrical and Mechanical Systems 2

Question 1

What type of fire extinguisher should NOT be used on an electrical fire on a construction site?

Accepted Answer

Water extinguisher

Answer

CO2 extinguisher

Answer

Dry powder extinguisher

Answer

Electrical-rated dry chemical

Question 2

What is the recommended safe approach distance from overhead power lines for construction equipment in the US?

Accepted Answer

10 feet (minimum)

Answer

1 foot

Answer

3 feet

Answer

25 feet

Question 3

Which system distributes conditioned air throughout a building under construction?

Accepted Answer

HVAC ductwork

Answer

Potable water system

Answer

Drainage stack

Answer

Electrical conduit

Question 4

What does PAT testing stand for in the context of site tools and equipment?

Accepted Answer

Portable Appliance Testing

Answer

Plant Assessment Testing

Answer

Pressurized Appliance Tracking

Answer

Personal Awareness Training

Question 5

A construction site's temporary power distribution board should be protected by which device to prevent overloads?

Accepted Answer

Circuit breakers or fuses

Answer

Voltage regulator

Answer

Capacitor bank

Answer

Transformer only

Question 6

Which mechanical system on a construction site requires a pressure test before commissioning?

Accepted Answer

Plumbing and pipework

Answer

Electrical conduit

Answer

Scaffold system

Answer

Hoarding panels