Test
Unit 202: Electrical principles and processes for building
Preguntas del test (20)
1When carrying out a continuity test would you expect:
- Aa. A very high reading
- Bb. No reading at all
- Cc. A variable reading
- Dd. A very low reading.
2A fault in an electric circuit can be caused by:
- Aa. Low load
- Bb. Heavy load
- Cc. Over load
- Dd. Limited load.
3Test probes on a multimeter must have a maximum exposed tip of:
- Aa. 1mm
- Bb. 2mm
- Cc. 3mm
- Dd. 4mm.
4When working on a system that has had a section of pipework removed, which of
the following should be used?- Aa. Permanent polarity bonding
- Bb. Permanent earth continuity bonding
- Cc. Temporary polarity bonding
- Dd. Temporary earth continuity bonding.
5A radiator fitted near to a shower in a bathroom could require:
- Aa. Supplementary bonding
- Bb. Main bonding
- Cc. Minor bonding
- Dd. Additional bonding.
6Where is an MCB fitted?
- Aa. Consumer unit
- Bb. Outside socket
- Cc. Extension lead
- Dd. Electric shower.
7The design, installation and testing of electrical systems is covered by:
- Aa. BS6700
- Bb. BS1212
- Cc. BS7671
- Dd. BS7176.
8The neutral conductor in fixed-cable installations is identified by the insulation
being coloured:- Aa. Red
- Bb. Green/yellow
- Cc. Blue
- Dd. Brown
9The relationship between current, resistance and voltage is stated in:
- Aa. Boyle’s law
- Bb. Ohm’s law
- Cc. Charge’s law
- Dd. BS7671.
10The type of electricity derived from a battery is:
- Aa. Alternating wattage
- Bb. Alternating current
- Cc. Direct wattage
- Dd. Direct current.
11Calculate the fuse rating for a 690w, 230v AC central heating pump.
- Aa. 13 amp
- Bb. 5 amp
- Cc. 3 amp
- Dd. 1 amp.
12What is this?
- Aa. Insulation resistance tester
- Bb. Digital manometer
- Cc. Residual current device tester
- Dd. Approved voltage tester.
13A domestic consumer unit should be installed:
- Aa. Only where there is three phase supply
- Bb. Immediately before the supplier’s sealed fuse unit
- Cc. On each ring circuit
- Dd. Immediately after the supplier’s meter.
14What is this?
- Aa. Illuminated fused spur
- Bb. Double pole pull cord switch
- Cc. Single pole rocker plate pull switch
- Dd. Wiring centre pull cord.
15Which one of the following appliances should have its own separate connection
to the consumer unit?- Aa. Immersion heater
- Bb. Bathroom light
- Cc. Free-standing fan heater
- Dd. Gas boiler.
16A boiler, with a rating of 690watt, 230v, 50Hz has been fitted with a 13 amp fuse.
Would you:- Aa. Leave it as it is
- Bb. Change it for a 3 amp fuse
- Cc. Fit a 16 amp MCB to protect it
- Dd. Warn customer not to touch it.
17What is this component?
- Aa. 1 gang surface mounted box
- Bb. 1 gang counter sunk box
- Cc. 2 gang counter sunk box
- Dd. 2 gang surface mounted box.
18Which one of the following could be interrupted by a disconnection of 400v
three-phase supply?- Aa. Heating of domestic hot water via immersion
- Bb. Domestic lighting
- Cc. Industrial process
- Dd. Domestic ring main.
19The normal voltage for a domestic property is:
- Aa. 415v three phase AC
- Bb. 240v single phase DC
- Cc. 230v single phase AC
- Dd. 110v single phase AC.
20The flow of electricity through both the live and neutral conductor can be turned
off by using:- Aa. Double pole switch
- Bb. Single pole switch
- Cc. MCB
- Dd. Ring circuit.
Información
- Descripción
- Practice test for unit 202
- Autor
- james crowley
- Idioma
- English
- Visitas
- 6.127
- Etiquetas
- Valoración
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