4TH CLASS ABSA EXAM PART A PRACTICE EXAM 2026 | ACTUAL EXAM
QUESTIONS AND CORRECT ANSWERS | VERIFIED ANSWERS | UPDATED VERSION
A condenser: - (Correct Answer)-Will reduce the make up water to the boiler.
Absolute pressure is: - (Correct Answer)-gauge pressure plus atmospheric pressure
The motion of moving parts is _____ by friction:
A: Prevented
B: Improved
C: controlled
D: resisted
E: Regulated - (Correct Answer)-D: resisted
The temperature at which enough vapour is giving of an oil to burn continiously is called the:
a) fire point
b) viscosity index
c) flash point
d) pour point
e) combustion limit - (Correct Answer)-a) fire point
Voltage is
a) the rate of current flow
b) the rate of electron flow
, 2
c) electromotive force
d) Kinetic energy
e) A form of power - (Correct Answer)-c) electromotive force
The resistance of a conductor is affected by:
1. Cross section area
2. Length
3. Temperature
4. Type of material
a) 1,2,3
b) 1,2,4
c) 1,3
d) 1,2,3,4
e) 1,2 - (Correct Answer)-d) 1,2,3,4
The movement of electrons in a conductor can be measured in:
a) Amperes
b) Ohms
c) Volts
, 3
d) Watts
e) Micrometer - (Correct Answer)-a) Amperes
An electric motor has a 3/4 horse power output rating. Calculate the rating in kilowatts:
a) 0.56
b) 0.75
c) 0.70
d) 7.5
e) 1.005 - (Correct Answer)-a) 0.56
The connection provided on DC motors to supply the armature with power:
a) are slip rings
b) are field poses
c) is a rheostat
d) commutator
e) is a rotating conductor - (Correct Answer)-d) commutator
The unit for the oppostion to current flow is the:
a) volt
, 4
b) amperes
c) ohm
d) watt
e) resistance - (Correct Answer)-c) ohm
In an electric circuit protected by a single fuse the current flowing through the fuse must be:
a) Equal to the voltage in the circuit
b) Equal to the resistance in the circuit
c) All of the current in the circuit
d) Equal to the rated value of the fuse
e) 1.732 times the applied current - (Correct Answer)-d) Equal to the rated value of the fuse
Electric overloads may be due to
1. Applying too heavy load to an electric motor
2. Lightning strike
3. A short circuit
4. Overloading a circuit with too many devices
5. Addition of circuit breakers
a) 1,2,3,4
QUESTIONS AND CORRECT ANSWERS | VERIFIED ANSWERS | UPDATED VERSION
A condenser: - (Correct Answer)-Will reduce the make up water to the boiler.
Absolute pressure is: - (Correct Answer)-gauge pressure plus atmospheric pressure
The motion of moving parts is _____ by friction:
A: Prevented
B: Improved
C: controlled
D: resisted
E: Regulated - (Correct Answer)-D: resisted
The temperature at which enough vapour is giving of an oil to burn continiously is called the:
a) fire point
b) viscosity index
c) flash point
d) pour point
e) combustion limit - (Correct Answer)-a) fire point
Voltage is
a) the rate of current flow
b) the rate of electron flow
, 2
c) electromotive force
d) Kinetic energy
e) A form of power - (Correct Answer)-c) electromotive force
The resistance of a conductor is affected by:
1. Cross section area
2. Length
3. Temperature
4. Type of material
a) 1,2,3
b) 1,2,4
c) 1,3
d) 1,2,3,4
e) 1,2 - (Correct Answer)-d) 1,2,3,4
The movement of electrons in a conductor can be measured in:
a) Amperes
b) Ohms
c) Volts
, 3
d) Watts
e) Micrometer - (Correct Answer)-a) Amperes
An electric motor has a 3/4 horse power output rating. Calculate the rating in kilowatts:
a) 0.56
b) 0.75
c) 0.70
d) 7.5
e) 1.005 - (Correct Answer)-a) 0.56
The connection provided on DC motors to supply the armature with power:
a) are slip rings
b) are field poses
c) is a rheostat
d) commutator
e) is a rotating conductor - (Correct Answer)-d) commutator
The unit for the oppostion to current flow is the:
a) volt
, 4
b) amperes
c) ohm
d) watt
e) resistance - (Correct Answer)-c) ohm
In an electric circuit protected by a single fuse the current flowing through the fuse must be:
a) Equal to the voltage in the circuit
b) Equal to the resistance in the circuit
c) All of the current in the circuit
d) Equal to the rated value of the fuse
e) 1.732 times the applied current - (Correct Answer)-d) Equal to the rated value of the fuse
Electric overloads may be due to
1. Applying too heavy load to an electric motor
2. Lightning strike
3. A short circuit
4. Overloading a circuit with too many devices
5. Addition of circuit breakers
a) 1,2,3,4
