AME 10 End of Unit – SVE Study

AME 10 End of Unit Quiz

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In a manually operated water level control system, which block directly affects the flow of water into or out of the tank?

D. Manual Controller

B. Set Point

A. Sensor

C. Feedback Path

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Explain the term "failset" in a control system and provide TWO examples of its application.

B) A failset is a state where a system continues to operate at a reduced capacity when a component fails. Examples include partial valve operation and limited control input.

A) A failset is a configuration that enhances system performance during a failure. Examples include increased power output and rapid response modes.

C) A failset is a predetermined state that a system moves to when it fails to operate correctly. Examples include valves that default to open or close positions and motor-driven actuators that move to a safe position.

D) A failset is a mechanism that accelerates system operations during a failure. Examples include high-speed processors and fast-acting sensors.

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What is the function of a hydraulic cylinder in a simple hydraulic circuit?

D) To store excess fluid

A) To pump fluid into the system

C) To filter impurities from the fluid

B) To convert hydraulic energy into mechanical energy

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What is a potential action to take if an airlock is suspected in the cooling system?

D. Replace the thermostat

C. Add more coolant to the system

A. Increase engine load

B. Bleed the cooling system

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How does the feedback path function in a manually operated water level control system?

A. It adjusts the water flow based on the operator's input

D. It represents the water tank where the level is controlled

B. It measures the desired water level

C. It provides the actual water level measurement back to the manual controller

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What does the "Controller" block in an automatic closed-loop engine cooling system do?

A. Measures the engine temperature

B. Displays the engine temperature

C. Compares the actual engine temperature to the desired set point and adjusts the coolant flow accordingly

D. Manually adjusts the coolant flow

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In the cascade control method, what is the consequence of a poorly tuned secondary controller?

B) The coolant temperature may oscillate

D) The fuel consumption will decrease

A) The primary controller will not function

C) The engine will overheat

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What type of valve actuator is commonly used in a split range control system for the jacket water temperature of a main engine?

A) Hydraulic actuators

C) Manual actuators

B) Pneumatic actuators

D) Electric actuators

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2. In a control block diagram, what is the purpose of the arrows or lines?

A) To indicate the control signals

C) To represent feedback loops

D) To display the gain of the system

B) To show the connection between components

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Why might a split range control system be preferred over separate control systems for heating and cooling in marine engine applications?

C) It allows for independent manual control of heating and cooling.

D) It eliminates the need for a temperature sensor.

B) It provides smoother transitions between heating and cooling.

A) It is less expensive to install and maintain.

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What does the term "set point" refer to in a control block diagram?

C) The signal feedback

B) The desired value that the system aims to achieve

D) The measurement taken by the sensor

A) The actual output of the system

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1. What does a block in a control block diagram typically represent?

A) A control signal

B) An individual component or function in the control system

C) The output of the system

D) The feedback loop

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