Module 8

Question 1

The term that describes the combined resistive forces in and AC circuit (Z) is?

Answer 1

impedance

Question 2

The total impedance of an AC-series circuit consisting of an inductor with a reactance of 10ohms, a capacitor with a reactance of 4 ohms and a resistor with a resistance of 8 ohms is?

Answer 2

10 Ohms

Question 3

In a reactive or inductive AC circuit, true power is?

Answer 3

less than apparent power

Question 4

In an AC circuit with no phase lead or lag, real power:

Answer 4

equals apparent power

Question 5

The basis for transformer operation in the use of alternating current is mutual ________?

Answer 5

inductance

Question 6

The voltage in an AC transformer secondary that contains twice as many loops as the primary will be?

Answer 6

greater and the amperage less than in the primary

Question 7

One advantage of using AC electrical power in aircraft is?

Answer 7

greater ease in stepping the voltage up or down

Question 8

What happens to the current in a voltage step-up transformer with a ratio of 1 to 4

Answer 8

the current is stepped down by a 1 to 4 ratio

Question 9

What is the ratio of Turns between the primary coil winding and the secondary coil winding of a transformer designed to triple it’s input voltage?

Answer 9

primary will have one-third as many turns as it’s secondary

Question 10

How can it be determined if a transformer winding has some of it’s turns shorted together?

Answer 10

the transformer will get hot in normal operation.