Jeppensen Chapter 7 Section A part 2

Question 1

Some generators use __________ to counter the effect of armature reaction.

Answer 1

interpoles

Question 2

The speed at which a generator begins to produce its rated voltage is called the __________-__________ speed and is usually about __________ rpm.

Answer 2

coming-in,
1500

Question 3

The speed at which a generator begins to produce its rated voltage is called the __________-__________ speed and is usually about __________ rpm.

Answer 3

coming-in,
1500

Question 4

Varying the __________ current controls generator output.

Answer 4

field

Question 5

The three relays contained in a three-unit voltage regulator are:
A. ____________________.
B. ____________________.
C. ____________________.

Answer 5

A. Current limiter,
B. Reverse current cutout,
C. Voltage regulator

Question 6

DC generators employ a __________ __________ relay between the generator output terminal and the bus to prevent the battery from discharging through the generator.

Answer 6

reverse current

Question 7

Residual magnetism may be restored to a generator by __________ the field.

Answer 7

flashing

Question 8

A variety of tests can be performed on DC generator and motor armatures with a specially designed test unit called a __________.

Answer 8

growler

Question 9

Large aircraft use AC alternators because they can produce a __________ amount of power and are __________ in weight.

Answer 9

large,
light

Question 10

The principle difference between a DC generator and a DC alternator is that the magnetic field is __________ in a generator and __________ in an alternator.

Answer 10

stationary,
moving

Question 11

The alternating current produced in a DC alternator is changed into direct current with a __________ rectifier.

Answer 11

solid-state

Question 12

The principle parts of an alternator are the:
A. ____________________
B. ____________________
C. ____________________
D. ____________________

Answer 12

A. Rotor,
B. Stator,
C. Solid-state rectifier,
D. Brush assembly

Question 13

Carbon brushes, riding on smooth __________ __________ carry the field current from the voltage regulator to the alternator rotor.

Answer 13

slip rings

Question 14

Solid-state voltage regulators are usually __________ if they fail.

Answer 14

replaced

Question 15

A reverse-current cutout relay __________ necessary with a DC alternator.

Answer 15

is not

Question 16

A __________ phase alternator is used for almost all aircraft applications.

Answer 16

three