1.【单项选择题】The diel engine is also called compression ignition engine becau______. 回答错误
单选题 (3 分) 0分 （难易度: 中）
A.
compression stroke is one of the four-strokes of a diel engine
B.
the diel engine is ignited by the heat of compression not by spark
C.
the diel engine has a very high compression ratio
D.
Both A and B
正确答案: D
positions2.【单项选择题】An automobile includes the following major categories: the body, the engine, ______and the electrical system. 回答错误
单选题 (3 分) 0分 （难易度: 中）
A.
steering system
B.
power source
四年级上册英语书 C.
chassis
D.
ignition system
正确答案: C
3.【单项选择题】______ is ud to parate drive from the engine to gearbox and to allow a smooth, progressive take-up of drive.
单选题 (3 分) 3分 （难易度: 中）
A.
The clutch
B.
The transmission system
C.
The drum brake
D.
The shock absorber
正确答案: A
4.【单项选择题】 In a four-stroke cycle, which one is actually doing work? 回答错误
单选题 (3 分) 0分 （难易度: 中）
A.
jamie dimonintake stroke
B.
compression stroke
C.
power stroke
D.
exhaust stroke
正确答案: C
5.【单项选择题】Pistons for modern engines are made of _______. 回答错误
单选题 (3 分) 0分 （难易度: 中）
A.
cast iron
B.
steel
C.
aluminum-alloy
D.
tin-alloy
正确答案: C
6.【单项选择题】The two basic types of fuel injection pumps ud in the diel engine are ______ and in-line type. 回答错误
单选题 (3 分) 0分 （难易度: 中）
A.
out-line type
B.
low-pressure pipe
C.
Distributor Pump Asmbly
D.
fuel filter
正确答案: C
7.【单项选择题】There are two basic types of engine valves: ____. 回答错误
单选题 (3 分) 0分 （难易度: 中）
A.
the intake valve and the inlet valve
B.
the exhaust valve and the intake valve
C.
the output valve and the inlet valve
D.
the exhaust valve and the output valve
正确答案: B
8.【单项选择题】What type of material ud is determined exactly by_____. 回答错误
单选题 (3 分) 0分 （难易度: 中）
A.
the stress
B.
load temperature
C.
aging qualities
D.
all of the above
正确答案: D
9.【单项选择题】Within the gasoline or the diel engine, about _____ of the energy is ud to drive the vehicle.
单选题 (3 分) 3分 （难易度: 中）
A.
25%
B.
33%
C.
9%
北京英语角 D.
all of the energy
成长的烦恼第一季正确答案: A
10.【单项选择题】The spark ignition engine can change the_____ contained in fuel into kinetic energy.
单选题 (3 分) 3分 （难易度: 中）
A.
chemical energy
B.
physical energy
C.
electrical energy
D.
solar energy
正确答案: A
11.【名词解释】请选择匹配的中文名词。
匹配题 (15 分) 3分 (计分规则:按匹配正确项计分) （难易度: 中）
正确答案:
Spark ignition and compression ignition
点燃式和压燃式
Crankshaft and camshaft
曲轴和凸轮轴
Emission control system
排放控制系统
Multi-cylinder engine
多缸发动机
Clearance volume
余隙容积（燃烧室容积）
12.【名词解释】请选择匹配的中文名词。
匹配题 (15 分) 9分 (计分规则:按匹配正确项计分) （难易度: 中）
正确答案:
Gasoline mixed with air
空气和燃料混合气
Jump across the gap of spark plug词汇教学
火花塞跳火
Internal combustion engine
内燃机
Throttle plate
节气门
Valve at
气门座
13.【匹配题】Match each number item with the most cloly related lettered item and choo your answers.（选择右栏中与左栏中描述相匹配的选项）
匹配题 (20 分) 4分 (计分规则:按匹配正确项计分) （难易度: 中）
正确答案:
object shaped like certain plants(eg. the onion) with thick rounded underground stem
bulb
chamberlaintype of cloth, esp one that is woven
fabric
(formal)a hole
orifice
the process of changing shape in a way that is not good or attractive
deformation
the process of forcing sth. out of its position or space
gland
14.
【匹配题】Match each number item with the most cloly related lettered item and choo your answers .（ 请选择和下图各部分相匹配的答案。）
正确答案:
编号为“1”的部分是
cam
编号为“2”的部分是
piston
编号为“3”的部分是
spark plug熟能生巧的故事
编号为“4”的部分是
battery
编号为“5”的部分是
flywheel
1.【单项选择题】According to the location of the camshaft, the valve trains are divided into overhead camshaft type and ______. 回答错误
单选题 (3 分) 0分 （难易度: 中）
A.
valve at
B.
valve guide type
C.
side camshaft type
D.
intake valve and exhaust
正确答案: C
2.【单项选择题】By the shape of friction surfaces, clutches can be divided into disc types, drum types and ______. 回答错误
单选题 (3 分) 0分 （难易度: 中）
A.
英文翻译器在线
block types
B.
cone types
C.
single-disc types
D.
double-disc types
正确答案: B
3.【单项选择题】Today’s clutch designs sometimes make provision for two independent clutches: one for starting away from rest; and the other for ______.
单选题 (3 分) 3分 （难易度: 中）
A.
gear change
B.
disconnecting the engine
C.
allowing engine braking
D.
all of the above
正确答案: A
4.【单项选择题】The characteristic features of transmissions with cylindrical main gear enclod in one casing are five ______ and one ______.
单选题 (3 分) 3分 （难易度: 中）
A.
rever gears; forward gear
B.
men in black
forward gears; rever gear
C.
top gears; bottom gear
