MDE 17 Q1

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

D) By directly coupling the engine with the propeller shaft

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

C) By increasing the engine speed during operation

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

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

B) Engine oil

D) Diesel fuel

C) Hydraulic oil

A) Water

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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.

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

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

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

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

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

C) To reduce fuel consumption by controlling engine speed

brake

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

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

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

A) The coupling will overheat and may fail.

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

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

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