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2365-203 Electrical Installation

Authored by Connor Jenkins

Science

12th Grade

40 Questions

Used 439+ times

2365-203 Electrical Installation
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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

TNS earthing systems use the

supply cable armour
earth electrode
neutral
transformer

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

RCD's that are used to protect socket outlet are rated at

30 A
30 mA
3 mA
300 mA

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The symbol Ze is associated with

total loop impedance
external suppliers earth loop impedance
R1
R2

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A TNCS earthing system, changes Line to c.p.c faults to

Line to neutral faults
Line to Line faults
Line to c.p.c faults
c.p.c to Line faults

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The symbol for Total earth loop impedance is?

Zs

Ib

Iz

Ze

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

The insulation material in mineral insulated cable is

manganese oxide

magnesium dioxide

manganese dioxide

magnesium oxide

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the maximum percentage of trunking that can be filled with cable:

35%

45%

55%

65%

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