Alternative Questions and Answers for the Mechanical
Test – 2025-2026
How are the valves positioned in a four-stroke cylinder engine on the
compression stroke?
Both valves are closed
Where are the water jackets located?
Around the cylinders
At what point is petrol mixed with air before being drawn into the
engine?
IN the Venturi
How do the engine's pistons move?
(1) Up and Down. (2) In and Out
What changes the movements of the pistons to rotary motion?
The crankshaft
What is the air cleaner fitted to?
The Air Intake
Which of the following would make the engine difficult to start?
(1) No water in the radiator
(2) The coil is hot
(3) The compression is poor
(4) No oil in the crankcase
What are the most likely causes of overheating?
, (1) Poor water circulation
(2) Binding brakes
(3) Broken fan belt
(4) Ignition sparks too retarded
When an engine is said to be "missing" what does this mean?
One of the cylinders is faulty
What is the prime use of the carburetor?
To mix petrol with air
What can cause flooding in the carburetor?
(1)Float stuck in down position
(2)Foat is too heavy
(3)Needle valve stuck in open position
If the brake pedal pressure is lost, what could this indicate?
A faulty washer
If you find that the rear wheels only are binding, what would be the
cause?
The hand brake is on
What is the prime function of the gear box?
To maintain engine revolutions
Where is the condenser usually located?
Inside the distributor
What is the use of the rotor brush?
To deliver current to the spark plugs
Test – 2025-2026
How are the valves positioned in a four-stroke cylinder engine on the
compression stroke?
Both valves are closed
Where are the water jackets located?
Around the cylinders
At what point is petrol mixed with air before being drawn into the
engine?
IN the Venturi
How do the engine's pistons move?
(1) Up and Down. (2) In and Out
What changes the movements of the pistons to rotary motion?
The crankshaft
What is the air cleaner fitted to?
The Air Intake
Which of the following would make the engine difficult to start?
(1) No water in the radiator
(2) The coil is hot
(3) The compression is poor
(4) No oil in the crankcase
What are the most likely causes of overheating?
, (1) Poor water circulation
(2) Binding brakes
(3) Broken fan belt
(4) Ignition sparks too retarded
When an engine is said to be "missing" what does this mean?
One of the cylinders is faulty
What is the prime use of the carburetor?
To mix petrol with air
What can cause flooding in the carburetor?
(1)Float stuck in down position
(2)Foat is too heavy
(3)Needle valve stuck in open position
If the brake pedal pressure is lost, what could this indicate?
A faulty washer
If you find that the rear wheels only are binding, what would be the
cause?
The hand brake is on
What is the prime function of the gear box?
To maintain engine revolutions
Where is the condenser usually located?
Inside the distributor
What is the use of the rotor brush?
To deliver current to the spark plugs
