17th Edition (2382-12) Online Exam Simulator

60 Questions  I  By Testers Direct
17th Edition (2382-12) Online Exam Simulator
17th Edition (2382-12) online exam simulator. 60 questions in 2 hours. Questions written by professional course tutor. Practice for the actual online 17th edition exam.

  
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Question Excerpt

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1.  Requirements are included in BS 7671 for electrical installations of
A.
B.
C.
D.
2.  Which of the following is excluded from the scope of BS 7671?
A.
B.
C.
D.
3.  Which of the following is not included in BS 7671?
A.
B.
C.
D.
4.  Which of the following documents is non-statutory?
A.
B.
C.
D.
5.  Protective equipotential bonding is achieved by
A.
B.
C.
D.
6.   The type of earthing arrangements requiring a consumer’s earth electrode to be installed is where 
A.
B.
C.
D.
7.  Low-voltage is defined in BS 7671 as having a value exceeding
A.
B.
C.
D.
1 comment
8.  Tables showing the classification of external influences when considering environmental conditions during the design of an installation can be found in BS 7671
A.
B.
C.
D.
9.  An assessment must be made of harmful effects on other electrical systems when installing
A.
B.
C.
D.
10.  For a 32A ring final circuit in similar premises to a dwelling, the minimum size of thermoplastic insulated copper live conductors allowed is
A.
B.
C.
D.
11.  In a domestic dwelling a 32A ring final circuit incorporating BS 1363 socket-outlets historically serves a floor area up to
A.
B.
C.
D.
12.  The following final circuits are to be installed using thermoplastic insulated multicore non-armoured cables 3 x 6A lighting                      1 x 20A UPS supply                             3 x 32A ring                           1 x 40A cooker   If the cables are enclosed in a non-metalic trunking where entering the distribution board, how many live conductors would be enclosed?
A.
B.
C.
D.
13.  The required current carrying capacity of a three-phase circuit conductor Iz  is 26A.  From the correct table, the minimum size of three single-core thermoplastic covered, heavy duty MICC cables, installed flat on a perforated cable tray and spaced by two cable diameters is
A.
B.
C.
D.
14.  Which of the following is not a characteristic of the supply?
A.
B.
C.
D.
15.  The requirements for mobile or transportable units are applicable to the following types of unit
A.
B.
C.
D.
16.  Basic protection by means of obstacles is intended to prevent 
A.
B.
C.
D.
17.  Which of the following is a method of fault protection?
A.
B.
C.
D.
18.   The value of the external earth loop impedance Ze  can be obtained by measurement at
A.
B.
C.
D.
19.  In a TN system, final circuits not exceeding 32A supplying fixed equipment are subject to a maximum disconnection time of
A.
B.
C.
D.
20.  The temperature limit for metalic equipment which is intended to be touched but not hand-held is
A.
B.
C.
D.
21.  Overload current is defined as an overcurrent
A.
B.
C.
D.
22.  The prospective fault current at the origin of a single-phase installation is the greater of the prospective
A.
B.
C.
D.
23.  To meet the requirements of BS 7671, all overcurrent devices without upstream backup protection must
A.
B.
C.
D.
24.  Which of the following devices can not be used for emergency switching?
A.
B.
C.
D.
25.  Which of the following arrangements of a firefighter’s switch controlling a discharge lighting installation would comply with BS 7671?
A.
B.
C.
D.
26.  Where overvoltage protection is to be provided in a household appliance, the minimum impulse withstand voltage for Category II equipment would be
A.
B.
C.
D.
27.  In locations with risk of fire due to the nature of processed or stored materials (conditions BE2), a wiring system which requires protection by a suitably rated RCD is
A.
B.
C.
D.
28.  Which of the following external influences would likely require an increase in the current rating of cables above that normally required?
A.
B.
C.
D.
29.  Precautions must be taken against the spread of flammable liquid from electrical equipment such as a transformer, if the liquid is
A.
B.
C.
D.
30.  The symbol used to denote the rating or setting of a protective device is
A.
B.
C.
D.
31.  For 5-core flexible cables in three-phase four wire systems, the alphanumeric marking of conductors as L1, L2,  L3 and N would correspond to the following conductor colour identification in accordance with BS 7671 
A.
B.
C.
D.
32.  At which of the following protective conductor terminations would a warning notice not need to be fixed
A.
B.
C.
D.
33.  A device capable of making and breaking load current and automatically breaking fault current is a
A.
B.
C.
D.
34.  Extraneous-conductive-parts require protective equipotential bonding to ensure that
A.
B.
C.
D.
35.  Where the supply to a caravan park is PME, a TT system of earthing must be used in the supply to
A.
B.
C.
D.
36.  Except where PME conditions apply, main protective bonding conductors shall have a cross-sectional area not less than
A.
B.
C.
D.
37.  When using a Class II electric drill outdoors, BS 7671 requires that
A.
B.
C.
D.
38.  A 13A socket outlet in a garage of a domestic dwelling must have the following
A.
B.
C.
D.
39.  Socket-outlets supplying 230V equipment used in the garden must be protected by a residual current device.  This device is fitted because the equipment is being used 
A.
B.
C.
D.
40.  Starters incorporating overload protection must be provided for electric motors with a rating exceeding
A.
B.
C.
D.
41.  The circuit of a safety service should be
A.
B.
C.
D.
42.  Where an installation and generator are not permanently fixed, every circuit must be protected by a residual current device with a maximum I∆n rating of
A.
B.
C.
D.
43.  In Zone 1 of a bathroom, the following fixed equipment may not be installed
A.
B.
C.
D.
44.  The correct temperature rating of the insulating material for flexible cables installed in a hot air sauna is?
A.
B.
C.
D.
45.  A reduced low-voltage supply is strongly preferred on a construction site to supply portable equipment with a loading less than
A.
B.
C.
D.
46.  In agricultural premises, a residual current device is required for protection against fire.  The RCD operating current must not exceed
A.
B.
C.
D.
47.  The main wiring installed in a frequently used touring caravan should preferably be inspected and tested at intervals not exceeding
A.
B.
C.
D.
48.  The maximum disconnection time for circuits supplying fixed equipment used in highway power supplies is
A.
B.
C.
D.
49.  Where a protective conductor current is likely to be 15mA in a ring final circuit, it must be provided with
A.
B.
C.
D.
50.  Which of the following requirements is not part of the inspection of fixed equipment, when inspecting and testing an installation in accordance with BS 7671?
A.
B.
C.
D.
51.  A legible diagram, chart or table relating to an installation must provide information
A.
B.
C.
D.
52.  A test simulating a fault condition would be used when testing
A.
B.
C.
D.
53.  In agricultural and horticultural premises all circuits other than for socket-outlets must be protected by an RCD with an operating current not exceeding
A.
B.
C.
D.
54.  The test voltage required to carry out an insulation resistance test on an installation where the nominal supply voltage is 750V is
A.
B.
C.
D.
55.  No alteration, temporary or permanent, shall be made to an existing installation unless the   
A.
B.
C.
D.
56.  A signed Electrical Installation Certificate must indicate responsibility for the installation’s
A.
B.
C.
D.
57.  An Electrical Installation Condition Report together with appropriate schedules shall be given to the
A.
B.
C.
D.
58.  Which of the following classifications of external influence would be appropriate for electrical equipment installed where subject to ‘splashes of water’?
A.
B.
C.
D.
59.  If a 63A BS 88-2 protective device operates 5 seconds after a fault develops, the approximate value of fault current will be
A.
B.
C.
D.
60.  Trunking is required to carry the cables of six three-phase circuits.  When determining the live conductor csa, which of the following grouping factors would be used?
A.
B.
C.
D.
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