MDE 21 End of Unit Quiz

MDE 21

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Question 2:
In a V-type engine with a "flat-plane" crankshaft arrangement, how is the crankshaft designed to achieve balance?

B) The crankshaft is equipped with counterweights to reduce vibration.

A) The crankshaft has evenly spaced throws to balance the engine.

C) The crankshaft is positioned at a 45-degree angle to the cylinder banks.

D) The crankshaft uses uneven spacing of throws to achieve balance.

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Question 2:
Which engine type typically offers a more compact design compared to the other?

C) Both have the same compactness

B) V-type engine

D) Neither is compact

A) In-line engine

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Question 3:
Which V-type engine bottom end arrangement is known for better engine balance and reduced vibration?

A) Cross-plane crankshaft arrangement

B) Flat-plane crankshaft arrangement

C) Both arrangements have equal balance

D) Neither arrangement offers good balance

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Question 6:
In a V-type engine with a cross-plane crankshaft, which of the following is a notable design feature?

C) Crankshaft has a straight design without offsets

B) Crankshaft throws are arranged at 90-degree intervals

A) Crankshaft has a single plane arrangement

D) Crankshaft is positioned at a 90-degree angle to the cylinder banks

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Question 3:
Which engine configuration is more likely to have a smoother operation and reduced vibration?

C) Both have the same level of vibration

D) Neither is smooth

B) V-type engine

A) In-line engine

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Question 1:
What is a key characteristic that differentiates a V-type engine from an in-line engine?

C) The engine's cooling system

A) The arrangement of the engine's cylinders

D) The number of valves per cylinder

B) The type of fuel used

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Question 4:
What is a key advantage of a flat-plane crankshaft in a V-type engine?

A) Increased torque at low RPMs

B) Better engine smoothness at high RPMs

D) Increased fuel efficiency

C) Reduced engine weight

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Question 4:
In a simple hydraulic governor, how is the feedback from the engine speed used to control fuel delivery?

C) It controls the temperature of the hydraulic fluid.

A) It directly adjusts the engine’s ignition timing.

B) It changes the position of the flyweights, which in turn adjusts the fuel pump.

D) It alters the pressure in the engine's cooling system.

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Question 6:
In which engine configuration would you typically find the crankshaft positioned between the two rows of cylinders?

B) V-type engine

D) Neither type of engine

C) Both types of engines

A) In-line engine

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Question 2:
How does a simple hydraulic governor detect changes in engine speed?

D) By checking the temperature of the engine coolant

A) By measuring the oil pressure in the hydraulic system

B) By sensing the position of the throttle lever

C) By monitoring the centrifugal force generated by a flyweight mechanism

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Question 5:
What happens to the hydraulic governor’s throttle valve when engine speed increases?

B) It closes to decrease fuel flow.

A) It opens to increase fuel flow.

C) It remains unchanged.

D) It alternates rapidly to stabilize the engine speed.

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Question 5:
Which engine type is more commonly used in high-performance applications due to its ability to provide more power in a compact space?

D) Neither is used for high performance

A) In-line engine

C) Both are equally used

B) V-type engine

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