Q2 Flashcards
1
Q
C and C stand for
A
Control and Communications
2
Q
Whats a converted supply
A
Frequency changed from 450v 60Hz
3
Q
What are the voltages in a C+C switchboard
A
24V
115v, 400Hz
4
Q
What and where are earth testing facilities for 24v DC
A
Earth test panel on switchboard
And push button with integral lamp is fitted
5
Q
TRU stand for
A
Transformer rectifier unit
6
Q
RTR stand for
A
Rationalised transformer rectifier
7
Q
2 battery categories
A
Primary and secondary
8
Q
Characteristics of batteries
A
Primary - dry, non rechargeable, small, throw them away
Secondary - wet, rechargeable, vary in size
9
Q
Capacity of batteries measured in?
A
Amphour
10
Q
Voltage of a fully charged cell
A
2.1v
11
Q
Voltage if a discharged cell
A
1.75v