MDE 13 End of Unit Quiz

MDE 13 End Of Unit Quiz

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Question 4:

How can an airlock in the cooling system affect the performance of a diesel engine water cooler?

A) It can increase the efficiency of heat transfer

C) It can cause localized overheating and reduced cooling efficiency

B) It can decrease the temperature difference across the cooler

D) It can enhance the coolant flow rate

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Question 5:

What is the impact of low coolant flow rate on the performance of a diesel engine water cooler?

D) Increased coolant temperature at the cooler outlet

C) Improved pressure drop across the cooler

A) Increased heat transfer efficiency

B) Decreased temperature difference across the cooler

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Question 2:

In a keel type cooling water system, which component is used to pump seawater through the keel cooler?

D) Freshwater Pump

B) Centrifugal Pump

C) Thermostatic Valve

A) Expansion Tank

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Question 1:

What could be a cause of decreased performance in a diesel engine water cooler?

D) Improperly aligned engine components

A) Increased air pressure in the engine room

C) High coolant flow rate

B) Clogged or fouled cooling passages

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Question 1:

Which of the following is a key condition for the effectiveness of a fresh water cooling system treatment program?

D) Ignoring temperature control in the system

A) Periodic chemical analysis and adjustment of treatment levels

C) Irregular maintenance and cleaning of the cooling system

B) Using only generic chemicals without consideration for compatibility

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Question 3:

Which component of the keel type cooling water system is used to manage the pressure and temperature of the coolant?

D) Thermostatic Valve

B) Keel Cooler

A) Expansion Tank

C) Sea Water Strainer

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Question 5:

What is the purpose of the cooling water pump in a diesel engine cooling water system?

B) To maintain pressure in the cooling system

A) To mix coolant with additives

C) To ensure the circulation of cooling water through the engine and heat exchanger

D) To remove impurities from the coolant

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Question 1:

Which of the following is the main component of a keel type cooling water system that helps to dissipate heat from the engine?

D) Centrifugal Pump

C) Expansion Tank

A) Heat Exchanger

B) Keel Cooler

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Question 2:

What is the function of the header tank in a diesel engine cooling water system?

B) To allow for expansion and contraction of the coolant

C) To filter out impurities from the coolant

D) To mix coolant with additives

A) To store spare coolant for emergencies

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Question:

Which of the following safety considerations is most important when handling inhibitors used in cooling systems?

C) Storing inhibitors in an open container to facilitate ventilation

D) Ignoring the manufacturer's instructions for handling and storage

B) Ensuring inhibitors are mixed with the fuel before use

A) Wearing personal protective equipment (PPE) such as gloves and goggles

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Question 4:

What is the primary purpose of the seawater strainer in a keel type cooling water system?

A) To filter and remove debris from seawater

C) To regulate the temperature of the coolant

B) To increase the pressure of the coolant

D) To add inhibitors to the cooling system

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Question 4:

To maintain an effective fresh water cooling system treatment program, it is important to:

A) Regularly clean the system to prevent buildup of contaminants

B) Use high doses of chemicals sporadically

D) Avoid routine checks of chemical levels

C) Allow temperature variations without monitoring

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