汽车专业英语 知到智慧树答案2024 z27717

第一章 单元测试

1、 The heart of automobile is ( )

A:chassis
B:electric system
C:engine
D:body
答案: engine

2、 ( ) holds all the main components and parts together.

A:clutch
B:brake
C:engine
D:chassis
答案: chassis

3、 ( ) is a sheet metal shell with windows, doors, a hood, and a trunk deck built into it.

A:clutch
B:body
C:engine
D:chassis
答案: body

4、 Automobile have many kind of structure and shape, but their basic structure is different each other.（ ）

A:对
B:错
答案: 错

5、 Any automobile is composed of the section such as engine, chassis, body, electric system. （ ）

A:对
B:错
答案: 对

第二章 单元测试

1、 The ( ) stores liquid fuel and delivers it to the engines.

A:braking system
B:fuel system
C:cooling system
D:steering system
答案: fuel system

2、 The ( ) circuits coolant through the engine and the walls of the engine block and head

A:body
B:water pump
C:fuel tank
D:clutch
答案: water pump

3、 As the crankshaft nears the its second complete revolution, the piston again approaches the ( )position.

A:BDC
B:BBDC
C:TDC
D:ATDC
答案: TDC

4、 After circulating through the engine, the oil drops back to the oil pan.（ ）

A:错
B:对
答案: 对

5、 The exhaust system can not reduce the noise of the burned gases leaving the engine cylinders. （ ）

A:对
B:错
答案: 错

第三章 单元测试

1、 The ( ) in the cylinder is connected to the top of a connecting rod.

A:valve
B:crankshaft
C:piston
D:cylinder
答案: piston

2、 A crankshaft’s job in an engine is to ( )

A:change linear motion into rotational motion
B:keep cylinder heads in place
C:convert fuel energy into mechanical energy
D:deliver fuel to the cylinders
答案: change linear motion into rotational motion

3、 The crank connecting rod mechanism consists of three parts—( ).

A:engine block group
B:crankshaft and flywheel group
C:camshaft and valve group
D:piston and connecting rod group
答案: engine block group
,crankshaft and flywheel group
,piston and connecting rod group

4、 Crank-connecting rod mechanism is the main working mechanism of reciprocating internal combustion engine.（ ）

A:对
B:错
答案: 对

5、 The top of the cylinder block is covered with the cylinder head. （ ）

A:错
B:对
答案: 对

第四章 单元测试

1、 An average air/fuel ratio for good combustion is about ( ) by weight.

A:13:1
B:18:1
C:15:1
D:20:1
答案: 15:1

2、 A valve consists of a( )and ( )stem. （ ）

A:tappet
B:rocker
C:stem
D:head
答案: stem
,head

3、 The ( )provides the force necessary to close the valve and hold it tightly against its seat.

A:valve spring
B:tappet
C:valve
D:rod
答案: valve spring

4、 The inlet valve is opened before TDC and closed after BDC.（ ）

A:对
B:错
答案: 对

5、 Camshaft’s function is to deliver spark positively and timely in a definite sequence. （ ）

A:错
B:对
答案: 错

第五章 单元测试

1、 The ( ) that the injector is open, the more fuel is injected.

A:smaller
B:shorter
C:bigger
D:longer
答案: longer

2、 Most vehicles today use ( ) injector per cylinder.

A:4
B:1
C:2
D:3
答案: 1

3、 The （ ）on the fuel tank is used to keep the fuel from splashing out, release the vacuum created by the fuel removing, and prevent vapors from escaping directly into the atmosphere.

A:baffle
B:sump
C:fuel cap
D:filter
答案: fuel cap

4、 For a diesel fuel goes to the carburetor, then to the fuel nozzles.（ ）

A:错
B:对
答案: 错

5、 The fuel system supplies gasoline or diesel fuel to the oil pan. （ ）

A:对
B:错
答案: 错

第六章 单元测试

1、 What is the cooling agent in the liquid cooling system? ( )

A:air
B:coolant
C:lubrication
D:gasoline
答案: coolant

2、 The water pump uses ( ) to send fluid to the outside while it spins, causing fluid to be drawn from the center continuously.

A:gas force
B:centrifugal force
C:gravity
D:friction
答案: centrifugal force

3、 The cooling system of a water-cooled engine consists of the engine’s water jacket, a（ ）and radiator cap, a cooling fan (electric or belt-driven), hoses, and usually an expansion (overflow) tank.

A:water pump
B:radiator
C:thermostat
D:fuel cap
答案: water pump
,radiator
,thermostat

4、 The cooling system is designed to work all the time when the engine is running.（ ）

A:错
B:对
答案: 错

5、 Some engines are coated the inside of the top of the cylinder head with a thin layer of ceramic to reduce the amount of heat that is transferred from the combustion chamber to the metal parts of the engine. （ ）

A:错
B:对
答案: 对

第七章 单元测试

1、 1.For an engine to make the best use of the fuel, the spark should occur before the piston reaches the top of（ ）。

A:the compress stroke
B:the exhaust stroke
C:the intake stroke
D:the compression stroke
答案: the compression stroke

2、 The piston speed increases as the engine speed increases. This means that the faster the engine goes, the spark has to occur（ ）。

A:uncertain
B:later
C:no change is necessary
D:earlier
答案: earlier

3、 According to your understanding, retarding the timing may also eliminate（ ）。

A:ignition
B:knocking
C:compression
D:combustion
答案: knocking

4、 The primary role of the distributor is to distribute high voltage from the（ ）to the correct cylinder.

A:coil
B:spark plug
C:rotor
D:piston
答案: coil

5、 Functions of ignition system are （ ）

A:ignite the mixture piston
B:send spark to correct cylinder
C:create a spark
D:control the timing of spark
答案: ignite the mixture piston
,send spark to correct cylinder
,create a spark
,control the timing of spark

下方是付费阅读内容：本平台商品均为虚拟商品，无法用作二次销售，不支持退换货，请在购买前确认您需要购买的资料准确无误后再购买，望知悉！

完整答案需点击上方按钮支付5元购买,所有答案均为章节测试答案，无期末答案。购买后上方矩形框将出现已付费的隐藏内容。

不知道怎么购买？点此查看购买教程！