Electrical Science and principles
Quiz
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Other
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Professional Development
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Practice Problem
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Hard
Daniel Farrant
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44 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
The SI unit of mass is the:
kilogram or kg
pound or lb
metre or m
millimetre or mm
2.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
The SI unit of electrical charge is the:
ohm
joule
watt
coulomb
3.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
Area is represented by:
kg
m²
m³
m
4.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
A shower unit draws 20 A from a domestic 230 V supply. Calculate the amount of power used.
4.6kW
11.5kW
46kW
0.08kW
5.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
Rearrange the formula R = p L/A to find p.
p = R/LA
p = RA/L
p = RL/A
p = A/RL
6.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
A 12 Ω filament lamp was found to be taking a current of 2 A at full brilliance. The voltage across the lamp under these conditions is:
6V
12V
24V
48V
7.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
The resistance of a kettle element which takes 12 A from a 230 V mains supply is:
2.88 Ω
5.00 Ω
12.24 Ω
19.16 Ω
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