MDE 17 End of Unit Quiz

MDE 17 End Of Unit Quiz

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Question 3:
With reference to fluid couplings for the main propulsion shaft, what is an advantage regarding vibration damping?

B) Enhanced vibration damping capability

D) Increased risk of engine stall

C) Reduced overall system efficiency

A) Increased vibration transmission to the shaft

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Question 4:
What is the primary function of the coupling fluid in a fluid coupling?

C) To cool the engine

B) To transfer torque between the engine and the gearbox

A) To lubricate the gearbox

D) To clean the turbine

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Question 2:
With reference to fluid couplings for the main propulsion shaft, which of the following is an advantage in terms of engine protection?

B) Reduced power transmission capability

D) Complex control mechanisms

C) Automatic slip during overload conditions

A) Increased wear on the engine components

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Question 5:
What is a common feature of the housing in a fluid coupling?

C) It regulates the engine speed

D) It serves as a cooling fan for the engine

B) It provides a sealed environment for the coupling fluid

A) It contains the fuel injection system

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Question 1:
With reference to fluid couplings, what is the primary effect of increased oil temperature on the performance of the coupling?

B) Increased efficiency of power transfer

A) Improved torque transmission

D) Enhanced cooling and lubrication

C) Reduced viscosity and potential slippage

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Question 2:
How does angular misalignment impact the life expectancy of a fluid coupling?

C) It decreases the life expectancy due to increased wear and tear

B) It has no effect on the life expectancy

D) It doubles the life expectancy by reducing operational stress

A) It increases the life expectancy due to better load distribution

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Question 2:
What is a potential consequence of increased oil temperature in a fluid coupling system?

A) Decreased risk of cavitation

C) Greater risk of fluid overheating and damage

D) Reduced wear and tear on the impellors

B) Improved overall system reliability

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Question 3:
Which component in a fluid coupling helps to maintain a controlled amount of coupling fluid and manage its flow?

B) Impeller

D) Hydraulic pump

A) Stator

C) Gearbox

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Question 4:
To correct angular misalignment in a fluid coupling system, what is a recommended action?

C) Increase the coupling speed

D) Replace the fluid coupling with a new one

A) Increase the coupling fluid temperature

B) Adjust the alignment of the shafts to the manufacturer’s specifications

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Question:
With reference to fluid couplings, what is the effect of increasing oil flow between the impellors?

A) Decreased torque transmission efficiency

D) Greater risk of fluid overheating and system failure

B) Increased speed difference between the input and output shafts

C) Enhanced torque transmission and reduced slip

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Question 1:
With reference to fluid couplings for the main propulsion shaft, what is one advantage of using a fluid coupling over a mechanical clutch?

C) Direct mechanical connection between engine and shaft

B) Smooth torque transmission without shock loads

A) Higher maintenance requirements

D) Reduced fuel efficiency

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Question 3:
How might increased oil temperature affect the fluid coupling's torque transmission capability?

D) It will double the torque transmission capability

C) It will have no effect on torque transmission capability

B) It will decrease torque transmission capability due to reduced fluid viscosity

A) It will increase torque transmission capability due to reduced fluid resistance

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