Unit 203 Revision Question Bank No.2

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Question 1 of 40

If a steel wire armoured cable had an overall diameter of 16mm what would be the maximum spacing of clips on a horizontal run

Select one of the following:

250mm
450mm
400mm
0.5m

Explanation

Question 2 of 40

If Band 1 and Band 2 circuits are run through the same trunking what special requirements must you achieve?

Select one of the following:

Cables to be run in the opposite direction
Cables are installed in separate compartments
Are not permitted in Trunking
Must be able to carry the same colour Live and Neutral conductors

Explanation

Question 3 of 40

If the ambient temperature increases the copper cable will

Select one of the following:

Increase resistance
Decrease resistance
Stay the same
Will melt

Explanation

Question 4 of 40

If the distance of an interactive whiteboard is 2m and the measurement taken is 4cm what is the scale of the drawing

Select one of the following:

1:20
1:100
1:40
1:50

Explanation

Question 5 of 40

If the distance of a wall is 4m and the measurement taken by the drawing is 4cm what is the scale

Select one of the following:

1:75
1:100
1:50
1:20

Explanation

Question 6 of 40

In a switch started fluorescent tube circuit, the function of the choke when the lamp is lit, is to

Select one of the following:

Limit current flowing in the lamp
Produce a voltage surge across the lamp
Cause current in the circuit to leap voltage.
Increase current flow in the circuit

Explanation

Question 7 of 40

In electrical systems, the definition of isolation is:

Select one of the following:

Placing conductors from each circuit in separate conduit
Protecting each circuit by a separate circuit breaker
Cutting off electrical energy from every power source
Isolating circuits & equipment from the general mass of earth

Explanation

Question 8 of 40

In order to determine types of materials and quantities required to complete an electrical installation, an estimator will require:

Select one of the following:

Operating sheets & manufacturers' models
Exploded view diagrams & data sheets
A technical drawing & data sheet
Specification & wiring diagram

Explanation

Question 9 of 40

For large number of computers installed on a large [LAN] network, what cable would you use?

Select one of the following:

Steel wired armour
Fibre optics
PVC
MICC

Explanation

Question 10 of 40

On a construction site the voltage to be used for power tools is restricted to

Select one of the following:

110V AC
230V AC
110V DC
55V AC

Explanation

Question 11 of 40

On site, where a crane is operating overhead, in addition to a safety helmet an electrician should wear

Select one of the following:

Face mask
A high visibility jacket
Rubber soled shoes
A donkey jacket

Explanation

Question 12 of 40

Operating characteristics information supplied with electric motors by the manufacturers is in the form of:

Select one of the following:

Data sheets
Memoranda
Circuit diagrams
Wiring diagrams

Explanation

Question 13 of 40

Overload can occur in a circuit if

Select one of the following:

A short circuit is present between line and neutral
The circuit is electrically sound
Between two conductors at different potentials
If there is a loose connection of conductors

Explanation

Question 14 of 40

PVC & metal conduit are fixed using:

Select one of the following:

Crampets
Spiral fixings
Cleats
Saddles

Explanation

Question 15 of 40

Solar Thermal installations work on which principle

Select one of the following:

Water passes through the panel allowing the generator to rotate.
Wind hits the panels and creates an electro motive force through the semiconductor material
Sun hits the panels and warms up the water.
Sun hits the panels and turn into electricity

Explanation

Question 16 of 40

The British Standard for a cartridge fuse used in 13A plug tops

Select one of the following:

BS 88
BS 1361
BS 1362
BS 3036

Explanation

Question 17 of 40

The cables that connect between two 2 way switches are said to be called

Select one of the following:

Switch wires
Strippers
Switch lines
Strappers

Explanation

Question 18 of 40

The distribution supply cable to a building is usually:

Select one of the following:

Steel Wire Armoured
PVC sheathed & insulated
PVC insulated in steel conduit
Mineral Insulated

Explanation

Question 19 of 40

The earthing arrangement when incoming supply cable sheath provides an independent earth is

Select one of the following:

TN - C
TT
TN - S
TN - C - S

Explanation

Question 20 of 40

The main reason to fix cable to walls on horizontal runs using appropriate clips at suitable intervals is to prevent:

Select one of the following:

Untidy appearance
Stress on the cable
Stop the cable being pulled down
Stray magnetic fields

Explanation

Question 21 of 40

The maximum disconnection time for a circuit over 32A is

Select one of the following:

1 second
0.4 seconds
0.2 seconds
5 seconds

Explanation

Question 22 of 40

The maximum number of accidents on a construction site is due to

Select one of the following:

Falling/tripping/manual handling
Falling/manual handling/use of equipment
Tripping/manul handling/use of equipment
Use of materials/falling/manual handling

Explanation

Question 23 of 40

The maximum span between buildings for unjointed 25mm diameter steel conduit is

Select one of the following:

2m
3m
2.5m
1.5 m

Explanation

Question 24 of 40

The most accurate method of forming right angle bends in steel conduit is:

Select one of the following:

A vice and heat source
A wooden block
The knee
A bending machine

Explanation

Question 25 of 40

The most important factor when selecting a cable of known rating is:

Select one of the following:

Colour of insulation
The temperature of operation
Shape of the outer sheath
Distance between cable cores

Explanation

Question 26 of 40

The purpose of the day work sheet is to record

Select one of the following:

All worked hours
Hours worked in addition to the main contract
All work to be carried out in one day
Any work related expenses to be claimed from petty cash

Explanation

Question 27 of 40

The purpose of the pvc sheath on a pvc/pvc multicore cable is to

Select one of the following:

Prevent damage to insulation
Provide a CPC
Provide a fixing point for plug cord grips
Colour code the cable

Explanation

Question 28 of 40

The rating of an RCD installed to provide additional protection for equipment used outside the main equipotential zone is?

Select one of the following:

30mA
500mA
100mA
50mA

Explanation

Question 29 of 40

The standard transmission high voltage is

Select one of the following:

11kV
400V
11kV
400kV

Explanation

Question 30 of 40

The stop button used to allow isolation of electrical equipment for maintenance must:

Select one of the following:

Easy to re-close
Placed close to the incoming supply
Able to be bypassed
Be impossible to re-close unintentionally

Explanation

Question 31 of 40

The symbol Ca is used to represent which rating factor

Select one of the following:

Thermal Insulation
Installation Condition
Ambient temperature
Grouping

Explanation

Question 32 of 40

To mark out metal trunking for cutting, you would use:

Select one of the following:

Rule, square & scriber
Gauge, level & tape
Knife, hammer & screwdriver
Vee block, saw & chisel

Explanation

Question 33 of 40

Vertical & horizontal runs of trunking must be adequately supported to:

Select one of the following:

Provide earth continuity
Avoid stress & damage to the cable
Prevent possible fire damage
Prevent distortion to the trunking

Explanation

Question 34 of 40

Which cable type is most suitable for cable cleats?

Select one of the following:

Singles
Steel wire armoured
MICC
PVC/PVC/CPC

Explanation

Question 35 of 40

What conductor is used to connect to extraneous conductive parts?

Select one of the following:

Main Protective Bonding conductor
Main Earthing conductor
Circuit Protective conductor
Earth Sleeving

Explanation

Question 36 of 40

What does the following picture show?

Select one of the following:

Spacer Bar Saddle
Cable Cleat
Hospital Saddle
Crampet

Explanation

Question 37 of 40

What fixings would be used on a hollow partition wall?

Select one of the following:

Rawl plug
Spring toggle
Screw
Cable cleat

Explanation

Question 38 of 40

What fixings would be used on a brick wall?

Select one of the following:

Rawl plug and round headed wood screw
Spring toggle
Self-adhesive tape
Gravity toggle

Explanation

Question 39 of 40

What form of switching is used on a security system?

Select one of the following:

Relay
Contactor
Direct on line starter
One way switch

Explanation

Question 40 of 40

What is the conduit factor for a 4m 20mm conduit which incorporates two bends?

Select one of the following:

Explanation

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C&G 2365 Level 2 Unit 203 Revision (Bank 2) OB

Unit 203 Revision Question Bank No.2

Question 1 of 40

If a steel wire armoured cable had an overall diameter of 16mm what would be the maximum spacing of clips on a horizontal run

Select one of the following:

Explanation

Question 2 of 40

If Band 1 and Band 2 circuits are run through the same trunking what special requirements must you achieve?

Select one of the following:

Explanation

Question 3 of 40

If the ambient temperature increases the copper cable will

Select one of the following:

Explanation

Question 4 of 40

If the distance of an interactive whiteboard is 2m and the measurement taken is 4cm what is the scale of the drawing

Select one of the following:

Explanation

Question 5 of 40

If the distance of a wall is 4m and the measurement taken by the drawing is 4cm what is the scale

Select one of the following:

Explanation

Question 6 of 40

In a switch started fluorescent tube circuit, the function of the choke when the lamp is lit, is to

Select one of the following:

Explanation

Question 7 of 40

In electrical systems, the definition of isolation is:

Select one of the following:

Explanation

Question 8 of 40

In order to determine types of materials and quantities required to complete an electrical installation, an estimator will require:

Select one of the following:

Explanation

Question 9 of 40

For large number of computers installed on a large [LAN] network, what cable would you use?

Select one of the following:

Explanation

Question 10 of 40

On a construction site the voltage to be used for power tools is restricted to

Select one of the following:

Explanation

Question 11 of 40

On site, where a crane is operating overhead, in addition to a safety helmet an electrician should wear

Select one of the following:

Explanation

Question 12 of 40

Operating characteristics information supplied with electric motors by the manufacturers is in the form of:

Select one of the following:

Explanation

Question 13 of 40

Overload can occur in a circuit if

Select one of the following:

Explanation

Question 14 of 40

PVC & metal conduit are fixed using:

Select one of the following:

Explanation

Question 15 of 40

Solar Thermal installations work on which principle

Select one of the following:

Explanation

Question 16 of 40

The British Standard for a cartridge fuse used in 13A plug tops

Select one of the following:

Explanation

Question 17 of 40

The cables that connect between two 2 way switches are said to be called

Select one of the following:

Explanation

Question 18 of 40

The distribution supply cable to a building is usually:

Select one of the following:

Explanation

Question 19 of 40

The earthing arrangement when incoming supply cable sheath provides an independent earth is

Select one of the following:

Explanation

Question 20 of 40

The main reason to fix cable to walls on horizontal runs using appropriate clips at suitable intervals is to prevent: