Electrics

Question 1

What conducts electricity more; gold or aluminium?

Answer 1

Gold.

Question 2

What type of covalent bonds to conductive materials have?

Answer 2

Weak.

Question 3

How many more batteries in a twin piston aircraft compared to a light aircraft?

Answer 3

Double.

Question 4

What strength alternating system does a jet airliner use?

Answer 4

115/200v

Question 5

What type and strength of system does a twin turbine have?

Answer 5

28(24) volt DC system

Question 6

How long should an aircraft battery supply power for?

Answer 6

30minutes.

Question 7

What is capacitance measured in?

Answer 7

Farads.

Question 8

Parallel circuits blank resistance.

Answer 8

Reduce.

Question 9

Most metals are NTC/PTC.

Answer 9

PTC

Question 10

What type of cloud is most likely to cause static electricity?

Answer 10

Cirrus,

Question 11

What are static wicks made of?

Answer 11

Carbon or wire.

Question 12

What does electrical bonding prevent?

Answer 12

Radio interference.

Question 13

On an aircraft using AC as primary power supply, the batteries are charged in flight from… (inverter/rectifier)

Answer 13

Rectifier

Question 14

The measured output power components of a constant frequency AC system are:

Answer 14

KVA AND KVAR

Question 15

What is a major risk to a battery in case of damage or abuse? Low/high current and thermal runaway

Answer 15

High

Question 16

An AC generator driven by a constant speed drive (CSD)… requires a blank controller

Answer 16

Voltage