Worksheets18th Edition Part 1 Mock 2
Total questions: 10
Worksheet time: 20mins
Name
Class
Date
1.
Which one of these does BS 7671 NOT apply to?
a)
a) d.c. cathodic protection systems
b)
b) Operation and maintenance gangways
c)
c) Horticultural premises
d)
d) Highway equipment
2.
The cross-sectional area of conductors shall be determined for normal operating conditions and fault conditions according to?
a)
a) The electromagnetic interference
b)
b) Harmonics
c)
c) The number of bunched cables in trunking
d)
d) The working height the cables are located
3.
When electrical equipment is selected, its power characteristics need to take into account?
a)
a) Load factor
b)
b) Load distribution
c)
c) Fault conditions
d)
d) Short-circuit conditions
4.
Where an electrical supply system is provided for standby electrical supply systems, what must be determined?
a)
a) Any special conditions such as harmonics
b)
b) Daily and yearly variation of demand
c)
c) Loads to be expected on the various circuits
d)
d) Characteristics of the supply
5.
Which of these is non-statutory?
a)
a) ESQCR
b)
b) RIDDOR
c)
c) HASAWA
d)
d) BS 7671
6.
What does BS7671 apply to?
a)
a) Prefabricated buildings
b)
b) Ships
c)
c) Mines
d)
d) Lift installations covered by BS 5655
7.
Which standard, for the selection of electrical equipment, cannot be used?
a)
a) To BS EN
b)
b) To IEC
c)
c) To BS
d)
d) To your own standard
8.
What characteristic of the supply is not required to be included in documentation that should accompany an electrical installation certificate in commercial premises?
a)
a) The circuits insulation resistance value
b)
b) The nominal frequency
c)
c) The prospective short-circuit current
d)
d) The nominal voltage
9.
In electrical installations, where the protection of safety is paramount the risk of injury may result from?
a)
a) Ignition of a potentially explosive atmosphere
b)
b) The apprentice leaving live wires exposed
c)
c) The incorrect equipment being used
d)
d) Non-skilled persons working on electrical equipment
10.
BS 7671 is NOT intended to provide safety from electric shock, which may result from?
a)
a) Interruptions of supply in an operating theatre
b)
b) Unauthorized access to railway signaling equipment
c)
c) Interruptions of electrical supply at a travelling fair
d)
d) Shock currents on a marina
100 %
