Multiple Choice
What does inverter mean?
A) It is an electronic soft starter for a three phase motor
B) Alternating current phases are reversed
C) Incoming 50 Hz alternating current is digitally reformed into an output frequency to a motor in the range from 0 to 50 Hz
D) Incoming 50 Hz alternating current is digitally reformed into an output frequency to a motor in the range from 0 to 20000 Hz
E) Alternating current is electronically converted into direct current to drive a motor
Correct Answer:

Verified
Correct Answer:
Verified
Q10: What does the acronym BREEAM relate to?<br>A)Ratings
Q11: Which of these may not be a
Q12: Which correctly describes types of heat transfer?<br>A)Sensible
Q13: How is plant protected by an MCB?<br>A)Micro
Q14: Which is correct about volume?<br>A)1 cubic centimetre
Q16: Which is correct about energy use in
Q17: Does air conditioning lead to obesity? Which
Q18: The required air leakage rate from a
Q19: What are fluorinated hydrocarbons used for?<br>A)Swimming pool
Q20: Which of these acronyms is correct?<br>A)CIC is