Advanced Internal Combustion Engines MCQs

Advanced Internal Combustion Engines MCQs

Answer these 100+ Advanced Internal Combustion Engines MCQs and see how sharp is your knowledge of Advanced Internal Combustion Engines.
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1: What is the full form of "Ie"?

A.   Ideal Engine

B.   Intense Combustion

C.   International Enterprise

D.   Internal Combustion

2: What is meant by Internal Combustion?

A.   The burning of fuel outside an engine

B.   The burning of fuel inside an engine

C.   The burning of fuel in the air

D.   The burning of fuel under water

3: What is a Spark Ignition engine?

A.   An engine in which the combustion process in each cycle is started by use of a flywheel.

B.   An engine in which the combustion process in each cycle is started by use of a spark plug.

C.   An engine in which the combustion process in each cycle is started by use of a piston.

D.   An engine in which the combustion process in each cycle is started by use of a crankshaft.

4: What is the other name for Compression Ignition?

A.   4-stroke

B.   CI

C.   DOHC

D.   Two-stroke

5: What does the acronym TDC stand for in engine terminology?

A.   Top-Dead-Center

B.   Top-Down-Center

C.   Too- Dull- to- Care

D.   The- Darn- Cat

6: What is the position called when an occurrence happens before TDC?

A.   TDC

B.   Head-End-Dead-Center

C.   BTDC

D.   B Te

7: What is BDC position of the piston?

A.   The point where the piston is at the top of the engine

B.   The point farthest from the crankshaft

C.   The point where the piston is at the bottom of the engine

D.   The point closest to the crankshaft

8: What is Indirect Injection?

A.   Fuel injection into the primary chamber of an engine with a divided combustion chamber

B.   Fuel injection into the quaternary chamber of an engine with a divided combustion chamber

C.   Fuel injection into the secondary chamber of an engine with a divided combustion chamber

D.   Fuel injection into the tertiary chamber of an engine with a divided combustion chamber

9: What is the bore diameter?

A.   The distance from one point to another on the surface of a sphere

B.   The longest dimension of an object

C.   The distance between the centers of the two opposite sides of a circular object

D.   The cylinder or diameter of the piston face, which is the same minus a very small clearance

10: What is the full form of TDC?

A.   Top Driving Capacity

B.   Training for Distance Course

C.   Total Distance Covered

D.   Top Dead Centre

11: What is the definition of "stroke?"

A.   BDC to TDC

B.   TDC to BDC

C.   Distance between two consecutive piston movements.

D.   Movement distance of the piston from one extreme position to the other: TDC to BDC or BDC to TDC.

12: What is the minimum volume in the combustion chamber with the piston at TDC?

A.   Swept volume

B.   Clearance volume

C.   Combustion chamber volume

D.   Engine displacement

13: What is the formula for displacement?

A.   Displacement = Force x Distance

B.   Displacement = Mass x Acceleration

C.   Displacement = Volume displaced by the piston as it travels through one stroke

D.   Displacement = Velocity x Time

14: What does a smart engine do?

A.   Make the car go slower

B.   Use less fuel

C.   Make the car go faster

D.   Regulate operating characteristics such as air-fuel ratio, ignition timing, valve timing, exhaust control, intake tuning, etc.

15: What is the Air-Fuel Ratio (AF)?

A.   The temperature at which fuel burns in an engine

B.   The ratio of mass of air to mass of fuel input into engine.

C.   The amount of power an engine produces from a given amount of fuel

D.   The amount of fuel needed to produce a given amount of power

16: What is the ratio of mass of fuel to mass of air input into an engine called?

A.   Air-Fuel Ratio (AF)

B.   Fuel-Air Ratio (FA)

C.   Force-Air Ratio (FA)

D.   Fuel-Force Ratio (FF)

17: What is the Brake Maximum Torque (BMT)?

A.   Speed at which maximum torque occurs.

B.   The amount of torque that can be applied to a brake before it fails.

C.   The speed of a vehicle when the brakes are applied.

D.   The amount of torque required to stop a vehicle.

18: What is an overhead valve?

A.   A device that regulates the amount of fuel

B.   A cover for the engine

C.   A valve mounted in the engine head

D.   A gear in the transmission

19: Where is the overhead camshaft mounted?

A.   In the engine block

B.   In the crankshaft

C.   In the engine head

D.   On the intake manifold

20: What is Fuel Injected (FI)?

A.   A system for metering fuel into an internal combustion engine

B.   A device for measuring the quantity of fuel in a storage tank

C.   A unit of measurement for fuel consumption

D.   A regulatory agency that sets standards for fuel injection systems

21: What is the Block Body of an engine made of?

A.   Titanium

B.   Cast Iron or Aluminum

C.   Magnesium

D.   Carbon Fiber

22: What is the purpose of the Camshaft?

A.   To cool the engine

B.   To hold the engine together

C.   To create energy

D.   To push open valves at the proper time in the engine cycle

23: What is the Venturi flow device?

A.   A device which meters the proper amount of air into the fuel flow by means of a pressure differential

B.   A device which measures the amount of air flow by means of a pressure differential

C.   A device which meters the proper amount of fuel into the air flow by means of a pressure increase

D.   A device which meters the proper amount of fuel into the air flow by means of a pressure differential

24: What is a catalytic converter?

A.   A device that measures the amount of exhaust emissions

B.   A device that increases the efficiency of the engine

C.   Chamber mounted in exhaust flow containing catalytic material that promotes reduction of emissions by chemical reaction.

D.   A device that controls the amount of fuel and air mixture in the engine

25: The size of the combustion chamber _______?

A.   Remains the same

B.   Continuously changes

C.   Decreases

D.   Increases

26: The size of the combustion chamber changes with what?

A.   The amount of fuel

B.   The amount of oxygen

C.   The temperature

D.   The position of the piston

27: What is a connecting rod bearing?

A.   Part of the crankshaft

B.   Bearing where connecting rod fastens to crankshaft.

C.   The area where the connecting rod and piston connect.

D.   Bearing in the connecting rod

28: What are cooling fins?

A.   Cylinders and head without fins.

B.   The inside surfaces of cylinders and head of an aircooled engine.

C.   Metal fins on the outside surfaces of cylinders and head of an aircooled engine.

D.   It is a type of coolant.

29: What is the crankshaft?

A.   The rotating crankshaft itself.

B.   The part of the engine block that makes up the crankcase housing

C.   Part of the engine block that surrounds the rotating crankshaft.

D.   The oil pan

30: What are the circular cylinders in the engine block?

A.   Cylinders

B.   Pistons

C.   Crankshafts

D.   Camshafts

31: What is an exhaust manifold?

A.   A device used to measure engine performance

B.   A piping system which carries exhaust gases away from the engine cylinders

C.   The fuel used to power the engine

D.   The person who operates the engine

32: What is the exhaust system?

A.   Flow system for removing exhaust gases from the cylinders, treating them, and exhausting them to the surroundings.

B.   System that helps to cool the engine

C.   System that produces exhaust gases

D.   System that helps the engine to function properly

33: What does an engine-driven fan do?

A.   Removes waste heat from the engine

B.   Adds air to the engine

C.   Increases air flow through the radiator and engine compartment

D.   Decreases air flow through the radiator and engine compartment

34: What is the purpose of a flywheel?

A.   To smooth out engine operation.

B.   Stores energy and furnishes a large angular momentum to keep the engine rotating between power strokes.

C.   To increase the speed of the engine.

D.   To keep the engine cool

35: What does a fuel injector do?

A.   Sprays fuel into the incoming air on SI engines or into the cylinder on CI engines

B.   Regulates the amount of fuel that enters the engine

C.   Ignites the fuel-air mixture in the engine

D.   Stores fuel for the engine

36: Many modern automobiles have a fuel pump that is _____?

A.   Windmill

B.   Solar powered

C.   Electric

D.   Manual

37: How is a fuel pump powered?

A.   Gasoline

B.   Electrically or mechanically

C.   LPG

D.   Wood

38: What is a glow plug?

A.   An ignition system

B.   A type of gasoline

C.   A small electrical resistance heater used to preheat the combustion chamber of a CI engine

D.   A part of the engine used to start the engine

39: What does the head of a cylinder usually contain?

A.   Part of the clearance volume of the combustion chamber

B.   The spark plug

C.   The piston

D.   The crankshaft

40: Which of the following is true about a head?

A.   It creates the spark for combustion

B.   It closes the end of the cylinder

C.   It contains the fuel for combustion

D.   It regulates the exhaust

41: What does a head gasket do?

A.   A device that regulates the timing of the engine

B.   Gasket which serves as a sealant between the engine block and head where they bolt together

C.   Stopping oil from entering the combustion chamber

D.   A measure of the ability of an engine to resist 'knocking' or 'pinging' during combustion

42: How many main bearings would be equal to the number of pistons?

A.   One piston

B.   One between each set of pistons plus the two ends

C.   Three pistons

D.   Two pistons

43: What is the function of an oil pan?

A.   To clean the engine

B.   To hold oil for the engine

C.   To lubricate the engine

D.   To cool the engine

44: How is an oil pump most commonly driven?

A.   Electrically

B.   Magically

C.   Splash distribution

D.   Mechanically by the engine

45: What is the oil sump?

A.   Part of the engine that cools the oil

B.   Part of the engine that lubricates the pistons

C.   A type of motor oil

D.   Reservoir for the oil system of the engine, commonly part of the crankcase.

46: What is the Piston?

A.   The pressure forces in the combustion chamber

B.   The cylindrical-shaped mass that doesn't reciprocate back and forth in the cylinder

C.   The rotating crankshaft

D.   The cylindrical-shaped mass that reciprocates back and forth in the cylinder

47: What is the function of piston rings?

A.   To seal the combustion chamber

B.   To cool the piston

C.   To form a sliding surface against the cylinder walls

D.   To lubricate the piston

48: What is a push rod?

A.   Mechanical linkage between the camshaft and valves

B.   Crankshaft in the engine

C.   A device that helps open the valves

D.   A element of the valvetrain

49: What is the purpose of a spark plug?

A.   To initiate combustion in an SI engine

B.   To make a car go smoother

C.   To make a car go faster

D.   To make a car go quieter

50: What is the full name for speed control-cruise control?

A.   Automatic electronic control system

B.   Automatic mechanical control system

C.   Cruise control

D.   Automatic electric-mechanical control system