Low compression of diesel engine may result from （）

A、A.a worn cylinder

B、B.broken piston rings

C、C.any of A and B

D、D.none of the above

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更多“Low compression of diesel engine may result from （）”相关的问题

第1题

[单选题] 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

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第2题

[单选题] The loss of the diesel engine cylinder air charge through leaky valves, piston rings, worn or scored liners, would be indicated by which of the following sets of conditions?（）

A、Low compression pressure and high exhaust temperature B、Low firing pressure and high exhaust temperature C、Low compression pressure and low exhaust temperature D、Low firing pressure and low exhaust temperature

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第3题

[单选题] Which of the following relationships should occur between the temperature developed in a combustion space, and the compression ratio of the engine?（）

A、Higher compression ratios create higher temperature B、Higher temperatures create higher compression ratios C、low temperatures create higher compression ratios D、Higher compression ratios create low temperatures

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第4题

[单选题] Which of these tools should you use to compress VoIP packets on a low-speed Frame Replay circuit?（）

A、Cisco Proprietary payload compression B、Predictor payload compression C、RTP header compression D、TCP header compression