Test
Unit 203 Revision Question Bank No.2
Preguntas del test (40)
1If a steel wire armoured cable had an overall diameter of 16mm what would be the maximum spacing of clips on a horizontal run
- A250mm
- B450mm
- C400mm
- D0.5m
2If Band 1 and Band 2 circuits are run through the same trunking what special requirements must you achieve?
- ACables to be run in the opposite direction
- BCables are installed in separate compartments
- CAre not permitted in Trunking
- DMust be able to carry the same colour Live and Neutral conductors
3If the ambient temperature increases the copper cable will
- AIncrease resistance
- BDecrease resistance
- CStay the same
- DWill melt
- AIncrease resistance
4If the distance of an interactive whiteboard is 2m and the measurement taken is 4cm what is the scale of the drawing
- A1:20
- B1:100
- C1:40
- D1:50
- A1:20
5If the distance of a wall is 4m and the measurement taken by the drawing is 4cm what is the scale
- A1:75
- B1:100
- C1:50
- D1:20
- A1:75
6In a switch started fluorescent tube circuit, the function of the choke when the lamp is lit, is to
- ALimit current flowing in the lamp
- BProduce a voltage surge across the lamp
- CCause current in the circuit to leap voltage.
- DIncrease current flow in the circuit
- ALimit current flowing in the lamp
7In electrical systems, the definition of isolation is:
- APlacing conductors from each circuit in separate conduit
- BProtecting each circuit by a separate circuit breaker
- CCutting off electrical energy from every power source
- DIsolating circuits & equipment from the general mass of earth
- APlacing conductors from each circuit in separate conduit
8In order to determine types of materials and quantities required to complete an electrical installation, an estimator will require:
- AOperating sheets & manufacturers' models
- BExploded view diagrams & data sheets
- CA technical drawing & data sheet
- DSpecification & wiring diagram
9For large number of computers installed on a large [LAN] network, what cable would you use?
- ASteel wired armour
- BFibre optics
- CPVC
- DMICC
- ASteel wired armour
10On a construction site the voltage to be used for power tools is restricted to
- A110V AC
- B230V AC
- C110V DC
- D55V AC
- A110V AC
11On site, where a crane is operating overhead, in addition to a safety helmet an electrician should wear
- AFace mask
- BA high visibility jacket
- CRubber soled shoes
- DA donkey jacket
- AFace mask
12Operating characteristics information supplied with electric motors by the manufacturers is in the form of:
- AData sheets
- BMemoranda
- CCircuit diagrams
- DWiring diagrams
- AData sheets
13Overload can occur in a circuit if
- AA short circuit is present between line and neutral
- BThe circuit is electrically sound
- CBetween two conductors at different potentials
- DIf there is a loose connection of conductors
- AA short circuit is present between line and neutral
14PVC & metal conduit are fixed using:
- ACrampets
- BSpiral fixings
- CCleats
- DSaddles
15Solar Thermal installations work on which principle
- AWater passes through the panel allowing the generator to rotate.
- BWind hits the panels and creates an electro motive force through the semiconductor material
- CSun hits the panels and warms up the water.
- DSun hits the panels and turn into electricity
16The British Standard for a cartridge fuse used in 13A plug tops
- ABS 88
- BBS 1361
- CBS 1362
- DBS 3036
- ABS 88
17The cables that connect between two 2 way switches are said to be called
- ASwitch wires
- BStrippers
- CSwitch lines
- DStrappers
- ASwitch wires
18The distribution supply cable to a building is usually:
- ASteel Wire Armoured
- BPVC sheathed & insulated
- CPVC insulated in steel conduit
- DMineral Insulated
- ASteel Wire Armoured
19The earthing arrangement when incoming supply cable sheath provides an independent earth is
- ATN - C
- BTT
- CTN - S
- DTN - C - S
- ATN - C
20The main reason to fix cable to walls on horizontal runs using appropriate clips at suitable intervals is to prevent:
- AUntidy appearance
- BStress on the cable
- CStop the cable being pulled down
- DStray magnetic fields
- AUntidy appearance
21The maximum disconnection time for a circuit over 32A is
- A1 second
- B0.4 seconds
- C0.2 seconds
- D5 seconds
- A1 second
22The maximum number of accidents on a construction site is due to
- AFalling/tripping/manual handling
- BFalling/manual handling/use of equipment
- CTripping/manul handling/use of equipment
- DUse of materials/falling/manual handling
- AFalling/tripping/manual handling
23The maximum span between buildings for unjointed 25mm diameter steel conduit is
- A2m
- B3m
- C2.5m
- D1.5 m
24The most accurate method of forming right angle bends in steel conduit is:
- AA vice and heat source
- BA wooden block
- CThe knee
- DA bending machine
25The most important factor when selecting a cable of known rating is:
- AColour of insulation
- BThe temperature of operation
- CShape of the outer sheath
- DDistance between cable cores
- AColour of insulation
26The purpose of the day work sheet is to record
- AAll worked hours
- BHours worked in addition to the main contract
- CAll work to be carried out in one day
- DAny work related expenses to be claimed from petty cash
- AAll worked hours
27The purpose of the pvc sheath on a pvc/pvc multicore cable is to
- APrevent damage to insulation
- BProvide a CPC
- CProvide a fixing point for plug cord grips
- DColour code the cable
- APrevent damage to insulation
28The rating of an RCD installed to provide additional protection for equipment used outside the main equipotential zone is?
- A30mA
- B500mA
- C100mA
- D50mA
- A30mA
29The standard transmission high voltage is
- A11kV
- B400V
- C11kV
- D400kV
- A11kV
30The stop button used to allow isolation of electrical equipment for maintenance must:
- AEasy to re-close
- BPlaced close to the incoming supply
- CAble to be bypassed
- DBe impossible to re-close unintentionally
- AEasy to re-close
31The symbol Ca is used to represent which rating factor
- AThermal Insulation
- BInstallation Condition
- CAmbient temperature
- DGrouping
- AThermal Insulation
32To mark out metal trunking for cutting, you would use:
- ARule, square & scriber
- BGauge, level & tape
- CKnife, hammer & screwdriver
- DVee block, saw & chisel
- ARule, square & scriber
33Vertical & horizontal runs of trunking must be adequately supported to:
- AProvide earth continuity
- BAvoid stress & damage to the cable
- CPrevent possible fire damage
- DPrevent distortion to the trunking
- AProvide earth continuity
34Which cable type is most suitable for cable cleats?
- ASingles
- BSteel wire armoured
- CMICC
- DPVC/PVC/CPC
- ASingles
35What conductor is used to connect to extraneous conductive parts?
- AMain Protective Bonding conductor
- BMain Earthing conductor
- CCircuit Protective conductor
- DEarth Sleeving
- AMain Protective Bonding conductor
36What does the following picture show?
- ASpacer Bar Saddle
- BCable Cleat
- CHospital Saddle
- DCrampet
- ASpacer Bar Saddle
37What fixings would be used on a hollow partition wall?
- ARawl plug
- BSpring toggle
- CScrew
- DCable cleat
- ARawl plug
38What fixings would be used on a brick wall?
- ARawl plug and round headed wood screw
- BSpring toggle
- CSelf-adhesive tape
- DGravity toggle
- ARawl plug and round headed wood screw
39What form of switching is used on a security system?
- ARelay
- BContactor
- CDirect on line starter
- DOne way switch
- ARelay
40What is the conduit factor for a 4m 20mm conduit which incorporates two bends?
- A222
- B204
- C91
- D213
- A222
Información
- Descripción
- C&G 2365 Level 2 Unit 203 Revision (Bank 2) OB
- Autor
- Oliver Balay
- Idioma
- English
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- 11.246
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