MDE 17 Q1

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Question 3:
In a fluid coupling, what role does the impeller play?

B) It acts as the driven component, receiving power from the propeller.

C) It controls the direction of fluid flow within the coupling.

D) It reduces the temperature of the fluid in the coupling.

A) It acts as the driving component, transmitting power from the engine.

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Question 2:
Which fluid is most commonly used in a fluid coupling for marine propulsion?

C) Hydraulic oil

B) Engine oil

D) Diesel fuel

A) Water

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Question 5:
What happens if the fluid level in a fluid coupling is too low?

C) The coupling will slip excessively, reducing power transmission.

A) The coupling will overheat and may fail.

D) The coupling will become too rigid and lose its damping effect.

B) The coupling will transmit too much power, causing engine overload.

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Question 1:
What is the primary function of a fluid coupling in a marine propulsion system?

brake

A) To provide a direct mechanical connection between the engine and the propeller

C) To reduce fuel consumption by controlling engine speed

B) To allow for smooth transmission of power by using fluid dynamics

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Question 4:
How does a fluid coupling protect the marine engine from shock loads?

B) By absorbing and dissipating energy through the fluid, reducing stress on the engine

A) By providing a rigid connection between the engine and the propeller

C) By increasing the engine speed during operation

D) By directly coupling the engine with the propeller shaft

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