MDE 13 Q5

1 / 4

Why are circulation pumps used in a diesel engine cooling water system?

A) To increase the pressure in the cooling system

C) To maintain a constant flow of coolant through the engine and heat exchanger

B) To remove air from the cooling system

D) To mix the coolant with additives

2 / 4

What is the role of the thermostat in a diesel engine cooling water system?

B) To clean the coolant

A) To regulate the coolant flow based on temperature

C) To increase the pressure in the cooling system

D) To filter out large particles from the coolant

3 / 4

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

A) To store spare coolant for emergencies

B) To allow for expansion and contraction of the coolant

C) To filter out impurities from the coolant

D) To mix coolant with additives

4 / 4

What is the primary purpose of the heat exchanger in a typical diesel engine cooling water system?

D) To filter out debris from the cooling water

B) To separate oil from the cooling water

C) To transfer heat from the engine coolant to the external cooling medium

A) To increase the temperature of the coolant

Your score is