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WorksheetsElectrical installation 2365
Total questions: 24
Worksheet time: 12mins
Name
Class
Date
1.
Identify the non-statutory regulation.
a)
BS 7676
b)
HASAWA
c)
BS7671
d)
Health and safety at work act
2.
what is the electrical symbol shown?
a)
Double poll switch
b)
emergency light
c)
double socket
d)
Pull switch
3.
Identify the electrical symbol
a)
1 way switch
b)
2way switch
c)
intermediate switch
d)
flux capacitor
4.
A document that details the products to be installed and the manufacturer type would be...
a)
A specification
b)
A layout diagram
c)
work schedule
d)
schematic diagram
5.
what is the BS number for a semi-enclosed rewirable fuse?
a)
BS 7671
b)
BS 61009
c)
BS 60947-3
d)
BS 3036
6.
What is the BS number for a MCB?
a)
BS 60898
b)
BS 1265
c)
BS 61009
d)
BS 60947
7.
Which MCB will disconnect in the shortest time?
a)
Type C
b)
Type D
c)
Type B
d)
RCD
8.
Which protective device will protect against high fault currents?
a)
HRC Fuse
b)
Circuit Breaker
c)
3036 fuse
d)
RCD
9.
Which protective device protects against earth leakage and overload protection?
a)
RCD
b)
MCB
c)
HRC
d)
RCBO
10.
What is the Correction factor symbol for ambient temperature?
a)
Ca
b)
Ci
c)
Cg
d)
Cf
11.
What is the correction factor when using a semi enclosed fuse?
a)
0.80
b)
0.35
c)
0.725
d)
21
12.
Name the extraneous conductive part
a)
Socket cover
b)
PVC switch
c)
Central heating pipework
d)
Cable tray
13.
Identify the exposed conductive part.
a)
PVC conduit
b)
Metal trunking
c)
Ventilation ductwork
d)
oil pipes
14.
which conductor links the MET to an exposed conductive part>
a)
Bonding conductor
b)
Supplementary bonding
c)
Earthing conductor
d)
CPC
15.
Which conductor links the source of earth to the MET?
a)
Earthing conductor
b)
CPC
c)
Bonding conductor
d)
Line Conductor
16.
which earthing system requires an earth electrode?
a)
TNC
b)
TNS
c)
TN-C-S
d)
TT
17.
Which earthing system uses a combined earth and neutral conductor?
a)
TN-C-S
b)
TT
c)
TNS
d)
TNC
18.
Identify the Transmission voltage (super grid voltage)
a)
11Kv
b)
33Kv
c)
400Kv
d)
230v
19.
Identify the distribution voltage for a small industrial unit.
a)
400v
b)
33Kv
c)
400Kv
d)
11Kv
20.
what is grey water?
a)
used water from sinks,baths and showers
b)
rain water
c)
toilet water
d)
washing machine waste water
21.
which energy production uses sun light to assist in heating water?
a)
PV
b)
Wind
c)
Hydro
d)
Solar Thermal
22.
Which energy production uses high pressure steam to power a generator?
a)
Wind
b)
Hydro
c)
Nuclear
d)
PV
23.
which energy production will use a small stream?
a)
Micro Hydro
b)
tidal
c)
Wind
d)
Solar thermal
24.
Which system can give 24hr energy production?
a)
solar
b)
Hydro
c)
Tidal
d)
Wind
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