18th Edition appendices mock 3
Authored by Gareth Wyatt
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Professional Development
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10 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What does BS 1361 relate to?
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What is the highest-rated fuse to BS 88-3 that has a disconnection time of 0.1 seconds when carrying 820 amps?
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
With reference to energy efficiency systems, consideration should be given to improving load power factor to?
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
For which of the following types of work would it not be permissible to use a minor electrical installation works certificate?
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
When measuring the resistance / impedance of floors and walls a test electrode comprising of a metallic tripod is used, over what approximate area should the test be conducted?
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
A single-phase lighting circuit is installed using two-core armoured 10 mm2 70°C thermoplastic insulated cable. The luminaires draw 25 Amps from the 230-volt a.c. supply. What will be the voltage drop in a 50m length of cable?
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What type of equipment is most likely to produce significant harmonic currents?
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