level 2 electrical practice questions

Which regulations is non-statutory

• The electricity at work regulations

• Requirements for electrical installations BS 7671

• Control of substances hazardous to health(COSHH) Regulations

• Control of noise at work Regulations

Which type of fire extinguisher would have a red band

• CO2

• Foam

• Water

• Powder

Who is responsible for organising construction work on a building site

• Site manager

• Clerk of works

• Quality inspector

• Principle architect

How many degrees does a generator rotor rotate per cycle

• 45⁰

• 90⁰

• 180⁵

• 360⁰

Three resistors of 17Ω, 44Ω and 66Ω are connected in parallel

What is the total circuit resistance

• 0.09Ω

• 10.34Ω

• 42.33Ω

• 127.0Ω

What is the SI unit of measurement for capacitance

• Ampere

• Farad

• Henry

• Webber

What is the unit of Magnetic flux

• Watt

• Tesla

• Weber

• Coulomb

Which electrical item would most commonly contain a permanent magnet

• Float switch in water tank

• Dimmer switch on a lighting circuit

• Shower isolator in a bathroom

• Security contact on a door

What does the the thumb in Fleming's right hand rule represent the direction of

• Field

• Motion

• Current

• Resistance

Which is the most appropriate tool to cut into a plasterboard wall to insert a socket-outlet backbox.

• Pad saw

• Panel saw

• Tenon saw

• Junior hacksaw