2018电大汽车专业英语形考答案.docx

What do almost all cars use to convert gasoline into motion?
选择一项:
A. one-bustion cycle
B. two-bustion cycle
C. three-bustion cycle
D. four-bustion cycle
A car engine’s job is to               .
选择一项:
A. convert fuel into heart
B. convert fuel into exhaust
C. convert fuel into motion
题目3
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标记题目
题干
请在左右两侧中将正确的词组连线
限压阀
答案 1
火花塞  
答案 2
机油泵
答案 3
空挡安全开关
答案 4
燃油滤清器
答案 5
A car uses a four-stroke engine. The four strokes are           .
选择一项:
A. injection, carburetion, rotation and exhaust
B. intake, compression, ignition and exhaust
C. injection, rotation, ignition and exhaust
With the       at the bottom of the cylinder, the exhaust valve opens to allow the burned exhaust gas to be expelled to the exhaust system.
选择一项:
A. valve
B. camshaft
C. crankshaft
D. piston
According to the method of ignition of the air-fuel mixture, engines are divided into    .
选择一项:
A. bustion engine pression ignition engine
B. bustion engine and diesel engine
C. gasoline engine and diesel engine
D. gas engine and steam engine
What is the core of a car’s engine?
选择一项:
A. The cylinder
B. The spark plug
C. Windshield-washer fluid
D. Exhaust
Which statement about cylinder head is fault?
选择一项:
A. The cylinder head is bolted to a very flat surface above the cylinder portion of the block.
B. The cylinder head is cast into one piece from iron only.
C. The cylinder head forms the upper portion of bustion chamber.
D. The cylinder head is used to hold the valves, and it has ports to allow air, fuel and exhaust to move through the engine.
The crankshaft and connecting rod converts        energy into         energy used to drive the vehicle.
选择一项:
A. mechanical, thermal
B. thermal, mechanical
C. mechanical, ic
D. mechanical, thermal
What causes a car to burn and lose oil?
选择一项:
A. A failing exhaust system
B. Lack of gas
C. Radiator trouble
D. An old engine with piston rings that no longer seal the cylinder and piston properly.
Wh