Alternative Questions and Answers for the
Mechanical Test – Jamaica UPDATED
ACTUAL Exam Questions and CORRECT
Answers
How are the valves positioned in a four-stroke cylinder engine on the compression stroke? -
CORRECT ANSWER - Both valves are closed
Where are the water jackets located? - CORRECT ANSWER - Around the cylinders
At what point is petrol mixed with air before being drawn into the engine? - CORRECT
ANSWER - IN the Venturi
How do the engine's pistons move? - CORRECT ANSWER - (1) Up and Down. (2) In and
Out
What changes the movements of the pistons to rotary motion? - CORRECT ANSWER -
The crankshaft
What is the air cleaner fitted to? - CORRECT ANSWER - The Air Intake
Which of the following would make the engine difficult to start? - CORRECT ANSWER -
(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? - CORRECT ANSWER - (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? - CORRECT ANSWER -
One of the cylinders is faulty
What is the prime use of the carburetor? - CORRECT ANSWER - To mix petrol with air
What can cause flooding in the carburetor? - CORRECT ANSWER - (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? - CORRECT ANSWER -A
faulty washer
If you find that the rear wheels only are binding, what would be the cause? - CORRECT
ANSWER - The hand brake is on
What is the prime function of the gear box? - CORRECT ANSWER - To maintain engine
revolutions
Where is the condenser usually located? - CORRECT ANSWER - Inside the distributor
What is the use of the rotor brush? - CORRECT ANSWER - To deliver current to the
spark plugs
What is the use of the generator? - CORRECT ANSWER - To provide an electrical charge
Mechanical Test – Jamaica UPDATED
ACTUAL Exam Questions and CORRECT
Answers
How are the valves positioned in a four-stroke cylinder engine on the compression stroke? -
CORRECT ANSWER - Both valves are closed
Where are the water jackets located? - CORRECT ANSWER - Around the cylinders
At what point is petrol mixed with air before being drawn into the engine? - CORRECT
ANSWER - IN the Venturi
How do the engine's pistons move? - CORRECT ANSWER - (1) Up and Down. (2) In and
Out
What changes the movements of the pistons to rotary motion? - CORRECT ANSWER -
The crankshaft
What is the air cleaner fitted to? - CORRECT ANSWER - The Air Intake
Which of the following would make the engine difficult to start? - CORRECT ANSWER -
(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? - CORRECT ANSWER - (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? - CORRECT ANSWER -
One of the cylinders is faulty
What is the prime use of the carburetor? - CORRECT ANSWER - To mix petrol with air
What can cause flooding in the carburetor? - CORRECT ANSWER - (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? - CORRECT ANSWER -A
faulty washer
If you find that the rear wheels only are binding, what would be the cause? - CORRECT
ANSWER - The hand brake is on
What is the prime function of the gear box? - CORRECT ANSWER - To maintain engine
revolutions
Where is the condenser usually located? - CORRECT ANSWER - Inside the distributor
What is the use of the rotor brush? - CORRECT ANSWER - To deliver current to the
spark plugs
What is the use of the generator? - CORRECT ANSWER - To provide an electrical charge
