AME 10 End of Unit – SVE Study

AME 10 End of Unit Quiz

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In a split range control system, what occurs when the controller's output signal reaches the upper range?

C) The cooling valve closes, and the heating valve fully opens.

A) The heating valve closes, and the cooling valve begins to open.

D) The system activates an alarm due to a high-temperature condition.

B) Both the heating and cooling valves close completely.

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How does a controller block typically function in a control block diagram?

C) It generates the feedback signal

D) It represents the sensor

A) It measures the system output

B) It compares the actual output with the desired set point and makes adjustments

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In a split range control system, what typically happens when the controller's output is in the lower range?

C) The heating valve is opened, and the cooling valve remains closed.

D) The heating and cooling valves are both closed to maintain the current temperature.

A) The cooling valve is fully opened, and the heating valve is closed.

B) Both the heating and cooling valves are partially opened.

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

B) The desired value that the system aims to achieve

D) The measurement taken by the sensor

C) The signal feedback

A) The actual output of the system

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

C) A failsafe is a feature that causes a system to enter a safe state in the event of a failure. Examples include spring-loaded valves and emergency shutdown systems.

B) A failsafe ensures a system continues to operate even when a component fails. Examples include redundant servers and dual power supplies.

A) A failsafe is a feature that prevents the system from failing. Examples include backup generators and surge protectors.

D) A failsafe is a mechanism that enhances the speed of a system during failure. Examples include turbochargers and fast-acting circuit breakers.

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How does the feedback loop function in a closed-loop engine cooling control system?

C. It manually adjusts the coolant flow

D. It displays the desired temperature to the operator

B. It provides temperature measurement to the controller for adjustment

A. It measures the engine temperature

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What is the purpose of having a deadband or overlap in the control signal range in a split range control system?

B) To prevent both valves from being fully open at the same time.

D) To allow manual intervention without disrupting the control system.

C) To provide a buffer zone where neither valve operates, allowing temperature stabilization.

A) To ensure simultaneous operation of both heating and cooling valves.

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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

C. Feedback Path

B. Set Point

A. Sensor

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What is the primary function of an automatic closed-loop engine cooling control system?

D. To increase the engine temperature for performance optimization

A. To manually adjust the engine temperature

B. To maintain the engine temperature within a desired range by automatically adjusting the coolant flow

C. To measure the engine temperature without adjusting it

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2. In the control block diagram, which block provides feedback on the actual water level?

A. Manual Controller

C. Sensor

D. Process Element

B. Set Point

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What is the function of a feedback loop in a control block diagram?

D) To provide a set point for the system

C) To compare the output with the set point and adjust the system accordingly

A) To amplify the signal

B) To measure the system output

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Why is it important for the closed-loop engine cooling system to be automatic?

A. To avoid manual adjustment of coolant flow

C. To provide real-time temperature display

B. To maintain optimal engine temperature without constant human intervention

D. To simplify engine operation

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