Worksheets18th edition part 3 mock 3
Total questions: 10
Worksheet time: 20mins
Name
Class
Date
1.
Installations are divide into circuits for a given reason, which option below is a listed reason?
a)
a) To reduce the installation time
b)
b) To allow the electrician to charge more for their work
c)
c) To allow the electrician to charge less for their work
d)
d) To prevent the indirect energizing of a circuit intended to be isolated
2.
When it is required to make a general assessment of characteristics of an electrical installation, which of the following options must be considered?
a)
a) The basic protection applied
b)
b) The compatibility of the equipment
c)
c) The fault protection included
d)
d) Functional switching
3.
When assessing the continuity of service of an emergency escape lighting system, which of the following should be considered?
a)
a) Initial starting current
b)
b) Maximum overload current
c)
c) Number of cables
d)
d) Number of circuits
4.
Where it is required to install a supply for a standby system, how shall the system be assessed?
a)
a) By the designer
b)
b) By the electrician
c)
c) Separately assessed
d)
d) Generally assessed
5.
In an earthing system, 'the direct electrical connection of the exposed conductive-parts to the earthed point of the power system' is denoted by the letter?
a)
a) T
b)
b) N
c)
c) S
d)
d) C
6.
When inspecting an installation with reference to the general characteristics of the supply, which of the following must be considered?
a)
a) Supplementary equipotential bonding
b)
b) The requirements for SELV
c)
c) The insulation resistance of floors and walls
d)
d) The suitability for the requirements of the installation
7.
Which of the following is an example of an electrical safety service?
a)
a) Emergency escape lighting
b)
b) Protection against safety overloads
c)
c) Protection against safety overheating
d)
d) Emergency safety backup generators connected to the public supply
8.
Which of these needs to be taken into account, with regards to maintainability?
a)
a) The tools the electrician uses
b)
b) The type of cables used
c)
c) Quality of maintenance
d)
d) The equipment manufactures recommendations
9.
When it is required to make a general assessment of characteristics of an electrical installation, which of the following options must be considered?
a)
a) The undervoltage that may be occur
b)
b) The overvoltage that may be present
c)
c) The number of RCD's installed
d)
d) Its maintainability
10.
Which of these is not a recognised safety service source?
a)
a) Storage battery
b)
b) Independent generator set
c)
c) Separate independent supply feeder
d)
d) Secondary feed from a local substation
100 %
