AGK Electrics

Question 1

Solenoid

Answer 1

Uses electromagnetic incudtion to move a core

2 contacts and a core

Question 2

Relay

Answer 2

Magnetically operated switch

Used in a high current circuit.

Coil wrapped around a fixed core moves a switch by electromagnetic induction

Question 3

Generator

Answer 3

Stationary magnets and split ring commutator

Question 4

Alternator

Answer 4

Moving magnets and bridge rectifier unit

Question 5

Unit for ac power

Answer 5

Volt-amp

Question 6

Ac generators and rated in

Answer 6

KVA

Question 7

Voltage control unit

Answer 7

Manipulates current to electromagnet in a generator control voltage output

Question 8

Voltage varies with

Answer 8

RPM

Consumer loads

Question 9

Standard AC

Answer 9

115V
400Hz
3 phase

Question 10

Standard DC voltages

Answer 10

14 or 28v

Question 11

Output frequency increases with

Answer 11

Increasing RPM

Question 12

CSD

Answer 12

Hydrostatic system that monitors frequency and phase and ensures generator RPM remains constant

Question 13

IGD

Answer 13

Combines generator and CSD

Question 14

Unipole

Answer 14

Earth return using airframe

Question 15

Dipole

Answer 15

Wire return and less chance of short circuit

Question 16

Paralleled system

Answer 16

All geerators and connected simultaneously

Needs same:
Voltage
Phase
Frequency

Question 17

Split system

Answer 17

Will connect generator and other bus bar only if a failure using bus tie

Question 18

Fire handle operates

Answer 18

Generator circuit breaker

Excitator control breaker

Question 19

A split busbar system can use

Answer 19

Frequency wild generators

Question 20

APU generator is generally

Answer 20

Frequency wild

Question 21

BAT busbar

Answer 21

Provides minimum power to essential loads eg fire extinguishers

Question 22

Hot busbar

Answer 22

Is permanently connected to its battery

Question 23

Seizure

Answer 23

Excessive current without back emf can cause fire

Question 24

Run away

Answer 24

When something is disconnected from the motor and ir over speeds causing physical damage