COOLING AND LUBRICATION ASSESSMENT 2

1. Technician A says combustion chamber tempature can reach 4000 degrees, Technician B says 1/3 of this power is used to power the engine. Who is correct?

• Technician A
• Technician B
• Both A & B
• Neither A or B

2. Technician A says the cooling system must remove unwanted heat. Technician B says a cold engine is very efficient.

• Technician A
• Technician B
• Both A & B
• Neither A or B

3. Technician A says a cold engine will use less fuel. Technician B states that a cool engine will have less wear. Who is correct?

• Technician A
• Technician B
• Both A & B
• Neither A or B

4. In a liquid cooled engine technician A says the oil passages are called cooling passages. Technician B says the water passages are called gallies. Who is correct?

• Technician A
• Technician B
• Both A & B
• Neither A or B

5. Technician A says water jackets surround the engine cylinders for proper cooling. Technician B says cooling system high pressure lowers the coolant boiling point. Who is correct?

• Technician A
• Technician B
• Both A & B
• Neither A or B

6. Technician A says freeze plugs are in engine to allow for expansion in case of engine freeze. Technician B says in spite of their name should the engine freeze block damage is usually the result. Who is correct?

• Technician A
• Technician B
• Both A & B
• Neither A or B

7. Technician A says the water pump has a by-pass to circulate water until the thermostat opens. Technician B says water pump can be constructed using metal or aluminum. Who is correct?

• Technician A
• Technician B
• Both A & B
• Neither A or B

8. Technician A says most serpentine belts have an automatic belt tensioner. Technician B states the serpentine belt tension should be checked by a belt deflection gauge. Who is correct?

• Technician A
• Technician B
• Both A & B
• Neither A or B

9. Technician A states the Radiator cap lowers cooling pressure to prevent loss of coolant. Technician B states that the boiling point of the coolant is raised by 3.0 degrees per pound rating of the cap. Who is Correct?

• Technician A
• Technician B
• Both A & B
• Neither A or B

10. Technician A states that most modern vehicles use a dry sump oil system to prevent leaks. Technician b states the thicker oil provides better lubrication in cold weather.

• Technician A
• Technician B
• Both A & B
• Neither A or B