AME 10 End of Unit – SVE Study

AME 10 End of Unit Quiz

1 / 12

What could happen if the split range control system's sensors fail to provide accurate temperature readings?

D) The system will automatically switch to a backup control method.

B) The system may overheat the engine due to a lack of proper cooling.

A) The system will operate normally, as it can compensate for sensor inaccuracies.

C) The system may shut down entirely to prevent damage to the engine.

2 / 12

What is the purpose of the "Coolant Flow Control" block in a closed-loop engine cooling system?

A. To measure the engine temperature

D. To compare actual and desired temperatures

B. To adjust the coolant flow based on the controller's output

C. To display the engine temperature

3 / 12

Which of the following actions should be taken first when the jacket water temperature continues to rise despite all systems appearing to be in good condition?

C. Inspect the heat exchanger for blockages

A. Increase engine speed to improve circulation

B. Check the temperature sensor for accuracy

D. Reduce engine load

4 / 12

Which of the following is a common cause of hydraulic fluid contamination?

C) Excessive heat generation

B) Poorly maintained seals and filters

A) Overpressure in the system

D) Low hydraulic fluid levels

5 / 12

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.

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

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

B) Both the heating and cooling valves close completely.

6 / 12

What is the purpose of the "Set Point" block in the control block diagram?

B. To represent the water tank

A. To measure the actual water level

C. To provide the desired water level that the operator aims to maintain

D. To adjust the water flow

7 / 12

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

D. To simplify engine operation

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

8 / 12

In a basic hydraulic circuit, what is the primary purpose of a hydraulic pump?

D) To cool the hydraulic fluid

A) To convert mechanical energy into hydraulic energy

B) To store hydraulic fluid

C) To control the direction of fluid flow

9 / 12

What is the primary advantage of using a split range control system to manage the jacket water temperature in a main engine?

A) It allows for precise control by using separate controllers for heating and cooling.

D) It increases the system’s complexity by requiring manual intervention for temperature adjustments.

C) It reduces the risk of overheating by prioritizing cooling over heating.

B) It simplifies the control system by using a single controller to manage both heating and cooling.

10 / 12

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

D) The measurement taken by the sensor

C) The signal feedback

B) The desired value that the system aims to achieve

A) The actual output of the system

11 / 12

In a hydraulic system, what does a pressure relief valve do?

B) It releases excess fluid from the system.

A) It controls the speed of fluid flow.

C) It protects the system from excessive pressure.

D) It stores hydraulic fluid for future use.

12 / 12

In a cascade control system for regulating the freshwater coolant temperature of a diesel engine, which of the following best describes the role of the secondary controller?

C) It adjusts the flow of coolant to maintain the desired temperature

B) It monitors the exhaust gas temperature

D) It provides feedback on the engine speed

A) It controls the fuel injection rate

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