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WorksheetsEngine revision Quiz
Total questions: 15
Worksheet time: 15mins
What does B.D.C. stand for in engine terms?
Bottom Dead Centre
Base Drive Control
Balanced Dynamic Cycle
Basic Distance Calculation
What is the relationship between stroke and T.D.C. and B.D.C.?
Stroke is the distance between T.D.C. and B.D.C.
Stroke is the time taken to reach T.D.C.
Stroke is the speed of the piston at B.D.C.
Stroke is the pressure at T.D.C.
During the Compression Stroke, what is the state of the valves?
Both open
Both closed
Inlet open, exhaust closed
Inlet closed, exhaust open
What initiates the Power Stroke in a four-stroke petrol engine?
Compression
Spark
Exhaust
Induction
What is the sequence of strokes in a four-stroke petrol engine?
Induction, Compression, Power, Exhaust
Compression, Induction, Power, Exhaust
Power, Induction, Compression, Exhaust
Exhaust, Power, Compression, Induction
What is the main function of the piston in an engine?
To convert fuel energy into mechanical energy
To ignite the air-fuel mixture
To release exhaust gases
To allow air-fuel mixture into the cylinder
What stroke am I, piston moving down the cylinder, 1 valve open, 1 valve closed?
Compression
Induction
Exhaust
Power
What happens to the gases in the sump during the downward stroke?
They are ignited
They are compressed
They are exhausted
They are transferred
What is the direction of the piston during the power/exhaust phase?
Upward.
Downward.
Sideways.
Rotational.
What is the primary function of the exhaust port in a two-stroke engine?
To release exhaust gases.
To intake air.
To compress fuel.
To ignite the mixture.
What results from the combination of diesel fuel and hot air?
Rapid burning of the mixture
Cooling of the engine
Compression of the air
Release of exhaust gases
What is a potential risk when the cylinder head is removed?
Increased fuel consumption
Liners moving and separating
Engine overheating
Oil leakage
What is the primary purpose of the spark plug in a petrol engine?
To compress the air-fuel mixture
To release exhaust gases
To cool the engine
To ignite the air-fuel mixture
What is the function of the crankshaft in an engine?
To ignite the air-fuel mixture
To convert linear motion to rotational motion
To compress the air-fuel mixture
To release exhaust gases
What happens during the induction stroke of a four-stroke engine?
The piston moves up and compresses the air-fuel mixture
The piston remains stationary
The piston moves down and draws in the air-fuel mixture
The piston moves up and expels exhaust gases
