What percentage of engine heat is dissipated through the cooling, lubricating, and fuel systems?
A. Between 10% to 15%
Between 20% to 25%
C. Between 30% to 35%
D. Between 40% to 45%
查看答案
Coolant in a liquid-cooled system flows directly from the water pump to the ______.
A. bottom of the radiator
B. water jackets and passage
C. cylinder head
D. top of the radiator
As the crankshaft nears the end of its second complete revolution,the piston again approaches theposition.
A. BDC
B. TDC
C. BBDC
D. ATDC
What is the core of a car’s engine?
A. The cylinder
B. The spark plug
C. Windshield-washer fluid
D. Exhaust
Which of the following is one of the jobs of the differential?
A. To allow the wheels to rotate at exactly the same speed.
B. To maintain torque.
C. To aim the engine power at the wheels.