Chapter 82

Question 0

An active current transformer should never:
A) be inspected until properly grounded
B) have its primary circuit opened
C) produce excessively high voltages
D) have its secondary circuit opened
E) have its secondary connected to a meter

Answer 0

D) have its secondary circuit opened

Question 1

When AC action causes a counter current in a coil, it is termed:
A) self inductance
B) capacitance
C) hysteresis
D) current generation
E) electromagnetic induction

Answer 1

A) self inductance

Question 2

Transformers are rated in terms of what two units?

Answer 2

VA, kVA

Not autobot and decepticons

Question 3

Current transformers step down the current rather than the:

Answer 3

Voltage

Question 4

Some of the fire hazards of transformer cooling can be compensated for by using:
A) chelates
B) antifoaming substances
C) florinated hydrocarbons
D) freons
E) organic compounds

Answer 4

C) florinated hydrocarbons