Level 3 Electrical Installation - Theory Exam
Questions with Correct Answers | Rated A+
List three things that need to be checked regarding the materials, given on a material schedule,
before they are obtained and installed. - CORRECT ANSWER ->the right type
>fit for purpose
> in the correct quantity
>suitable for work to be completed cost efficiently
>suitable availability for delivery in time
List three methods of generating electricity using renewable energy - CORRECT ANSWER -Solar
Wind
CHP
Tidal
Hydro (but not pumped storage)
Explain one reason why AC is used in preference to DC for most electrical distribution in the UK.
- CORRECT ANSWER -AC voltage can easily be stepped up and down (1) using transformers (1) to
minimise losses and voltage drop (1)
List three types of AC motor controller. - CORRECT ANSWER -direct-on-line
star-delta
rotor-resistance
soft-start
variable frequency
other suitable
Questions with Correct Answers | Rated A+
List three things that need to be checked regarding the materials, given on a material schedule,
before they are obtained and installed. - CORRECT ANSWER ->the right type
>fit for purpose
> in the correct quantity
>suitable for work to be completed cost efficiently
>suitable availability for delivery in time
List three methods of generating electricity using renewable energy - CORRECT ANSWER -Solar
Wind
CHP
Tidal
Hydro (but not pumped storage)
Explain one reason why AC is used in preference to DC for most electrical distribution in the UK.
- CORRECT ANSWER -AC voltage can easily be stepped up and down (1) using transformers (1) to
minimise losses and voltage drop (1)
List three types of AC motor controller. - CORRECT ANSWER -direct-on-line
star-delta
rotor-resistance
soft-start
variable frequency
other suitable
