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.
In the triangle shown what is the length of side 'A'?
2.
An example of a class 2 Lever is?
3.
What do we call substances that have molecules that are less densely packed?
4.
Which Electronic component is used in modern Dimmer switches?
5.
Calculate the resistance of a resistor which absorbs 5000W when a current of 15A passes through it?
6.
The root mean square value of a sinusoidal current having a peak value of 10 A is?
7.
What is the formula for average mechanical power?
8.
Which of the following devices are solely used to provide energy at the correct time and minimise wastage
9.
How much pd is left by the time one coulomb travels from start to finish of a circuit?
10.
What is the Quantity symbol for Length?
11.
65% can be expressed as a decimal as?
12.
A 2 kW, 230 V immersion heater will draw a current of?
13.
An electric potential is generated by thermal means when?
14.
Which in the diagram shows the correct rotation of the magnetic field?
15.
A force of 15 Newtons causes a mass to accelerate at 5ms², what is the quantity of the mass?
16.
Which of the following statements is not true?
17.
What is the unit of measurement Tesla for?
18.
What is the SI unit of measurement symbol for Temperature?
19.
A circuit dissipates 3kW at a power factor of 0.7 when connected to a 230V a.c. supply. The current flowing in the circuit will be?
20.
Refer to the figure shown. What does value 'A' indicate?
21.
What value of resistance is required to have a current of 12A, from a supply of 230v?
22.
Which of the following electronic components is a solid state switch that allows current flow between two of its terminals and a small current is sensed on its third terminal?
23.
A cooker has 4 x 1.5 kW hot plates, a 2 kW grill and a 3.5 kW oven. If the cooker is supplied from a 230 V ac supply, what is the maximum current drawn by the cooker?
24.
What is the SI unit of measurement for Length?
25.
A heater element has a resistance of 20Ω. Calculate the supply voltage if the current flowing is 5.5A?
26.
The formula for power is?
27.
The voltage of the alternator is shown in the form of a?
28.
A 6 pole three-phase alternator is to give an output of 50Hz. It must be driven at a speed of?
29.
What is the value of the Current flow in the circuit diagram?
