Welcome to your 2365 602 Electrical Science. This mock exam is not a substitute for proper teaching or revision and should only be used as a resource to prepare learners for the exam. The questions (along with the wording and diagrams) contained within the bank of this exam are purely made up by our lecturers and not copied from any actual qualification exam. So while this is an excellent free revision resource, please do not rely on these exam questions alone to help you be successful within your qualifications. When you are ready, please press "start quiz".
1.
The resistivity of an electrical conductor depends on its?
2.
What is the SI unit of measurement for Area?
3.
What is "Potential Difference" measured in?
4.
Which one of the following has the lowest resistivity?
5.
What is the SI unit of measurement for Work?
6.
A Preset temperature of an immersion heater is maintained by a?
7.
A device consists of soft iron bar with a single coil of insulated wire wound on it. When a current flows in the coil the device acts as?
8.
Which best describes the lever in the diagram?
9.
Which of the following statements is correct?
10.
What is the formula for electrical charge?
11.
A length of a conductor has a resistance of 1Ω . If its cross sectional area was doubled its resistance would be?
12.
Transpose the formula R = pl/a to find L?
13.
Which of the following devices are solely used to provide energy at the correct time and minimise wastage
14.
The voltage of the alternator is shown in the form of a?
15.
A resistor network with three resistors 9Ω, 3Ω, 2Ω are connected in parallel. What will their combined resistance be?
16.
Which of the following two methods of space heating?
17.
Large quantities of electric power are produced in generators or alternators by?
18.
What is the formula for mechanical power?
19.
If a motor’s input is 75 Watts and it’s output is 50 Watts, what is the efficiency of the motor?
20.
Using OHMS Law at a constant voltage, if Current increase then resistance?
21.
A force of 15 Newtons causes a mass to accelerate at 5ms², what is the quantity of the mass?
22.
Which one of the following does NOT conduct electricity?
23.
A load of conduit has a mass of 137kg, what force will be required to lift it?
24.
Which of the following devices does not use the magnetic effect of electric current?
25.
What is the SI unit of measurement for Frequency?
26.
In the triangle shown what is the side labelled 'C' known as?
27.
How long will a single rotation of a generator take with the frequency of 50Hz?
28.
What is the SI unit of measurement for Temperature?
29.
50 meters of cable has resistance of 8.64Ω, what is the resistance if the length is 100 meters?
30.
Which ONE of the following statements is true?
By Neil