WorksheetsL3 Electrical Theory
Total questions: 14
Worksheet time: 7mins
The SI unit for power is
Volts
Amperes
Watts
Resistance
The SI unit for electromotive force is
Volts
Watts
Amperes
Resistance
The type of electricity derived from a battery is
Alternating Wattage
Alternating Current
Direct Wattage
Direct Current
The normal voltage for a domestic property is
415V 3-Phase AC
240V Single Phase DC
230V Single Phase AC
110V Single Phase AC
The relationship between current, resistance and voltage is stated in
Boyle's law
Ohm's law
Current's law
Charge's law
A fault in an electric circuit can be caused by
low load
over load
heavy load
limited load
When carrying out a continuity test you would expect
A very high reading
No reading at all
A variable reading
A very low reading
Calculate the fuse rating for an electrical 690 Watt appliance on a 230V supply
1 Amp
3 Amp
5 Amp
13 Amp
The standard UK grid voltage is
11 kV
33 kV
132 kV
400 kV
The symbol shown means that the appliance
needs an earth connection
does not need an earth connection
is safe to use
is not safe to use
The correct colour coding for the wiring of a plug would be
earth green and yellow / line blue / neutral brown
earth blue / neutral green and yellow / line brown
earth green and yellow / neutral blue / line brown
earth brown / neutral blue / line green and yellow
How often should electrical tools be PAT tested when used on a construction site
every 1 month
every 3 months
every 6 month
every 12 months
The symbol shown would indicate
Voltage Alternating Current
Voltage Direct Current
Voltage 3 -Phase Alternating Current
Voltage Appreciating Current
The symbol shown would indicate
Voltage Alternating Current
Voltage Direct Current
Reduced Voltage Alternating Current
3 Phase Alternating Current
