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（）the compression ratio, （） the proportion of the heat energ

题目
单选题
（）the compression ratio, （） the proportion of the heat energy of the combustion turned into useful work at the crankshaft, other things being equal.
A

The high；the large

B

The higher；the larger

C

The lower；the larger

D

The low ；the large

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相似问题和答案

第1题：

Which statement is true about compression subnets?()

A. Compression subnets are turned on by default.

B. Compression subnets advertise remote routes.

C. Compression subnets are usually LAN-side subnets.

D. Compression subnets are usually WAN-side subnets.


参考答案：C

第2题：

You want to use RMAN to create compressed backups.  Which statement is true about the compression algorithms that RMAN can use？（）

  • A、 The BZIP2 compression algorithm consumes more CPU resources than the ZLIB compression algorithm.
  • B、 The ZLIB compression algorithm consumes more CPU resources than the BZIP2 compression algorithm.
  • C、 The ZLIB compression algorithm provides maximum compression and produces smaller backups than the BZIP2 compression algorithm.
  • D、 Only the BZIP2 compression algorithm can be used to make compressed backups to disk.

正确答案:A

第3题：

Which of the following statements represents the function of the compression rings installed at the top of a diesel Engine piston?

A.Control the amount of lube oil burned in the combustion chamber

B.Transmit heat from the piston to the cylinder liner

C.Prevent damage to ring groove inserts by acting as a heat dam

D.Dissipate combustion chamber gas pressure by channeling it through the ring gap


正确答案：B

第4题：

单选题
Which of the following operating conditions can occur when shims are removed from the joint between the foot of a marine type diesel engine connecting rod and the bearing box?（）
A

Decreased connecting rod bearing clearance

B

Increased connecting rod bearing clearance

C

Decreased compression ratio

D

Increased compression ratio


正确答案： C
解析： 暂无解析

第5题：

单选题
Worn main bearing will cause the compression ratio of an auxiliary diesel engine to（）
A

increase

B

decrease

C

remain the same

D

increase on compression decrease on expansion


正确答案： D
解析： 暂无解析

第6题：

Which statement is true about compression subnets?（）

  • A、Compression subnets are turned on by default.
  • B、Compression subnets advertise remote routes.
  • C、Compression subnets are usually LAN-side subnets.
  • D、Compression subnets are usually WAN-side subnets.

正确答案:C

第7题：

单选题
The latent heat of evaporation is dissipated in the （） in a compression refrigeration system.
A

evaporator

B

condenser

C

expansion valve

D

compressor


正确答案： B
解析： 暂无解析

第8题：

Which of the following reasons represents why the designed compression ratio of a gasoline engine is lower than that of a diesel engine?

A.compression must be low for effective spark ignition

B.compression must be low for required horsepower and torque generation

C.compression must be low to prevent pre-ignition

D.compression must be low to have effective pre-ignition


正确答案：C

第9题：

单选题
In a compression refrigeration plant the refrigerant flows from the expansion valve and through the （） where it absorbs heat from the space being cooled and becomes a gas or vapor.
A

compressor

B

condenser

C

throttle valve

D

evaporator


正确答案： D
解析： 暂无解析

第10题：

单选题
Which of the following statements represents the function of the compression rings installed at the top of a diesel Engine piston?（）
A

Control the amount of lube oil burned in the combustion chamber

B

Transmit heat from the piston to the cylinder liner

C

Prevent damage to ring groove inserts by acting as a heat dam

D

Dissipate combustion chamber gas pressure by channeling it through the ring gap


正确答案： D
解析： 暂无解析

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