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Cracking of a diesel piston crown can result from()

单选题
2022-01-05 18:20
A、Excessive piston to liner clearance
B、The underside of the piston crown being excessively dirty lowering the rate of heat transfer
C、Faulty nozzle spray
D、All of the above
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正确答案
D

试题解析

感兴趣题目
The rotary motion of a diesel engine crankshaft is obtained from the up and down motion of the piston via the ().
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?()
In a large, low-speed diesel engine the clearance between the piston crown and cylinder head is found to be excessiveIn order to correct for this, you should()
A diesel engine with a combustion chamber located between the crowns of two pistons is known as a/an ().
保持安全值班的目的包括:() Ⅰ、避免船舶发生碰撞事故Ⅱ、避免船舶发生火灾Ⅲ、避免船舶污染环境
不符合“A”型船舶特点的其他船舶均称为“B”型船舶。
船长应负责保管的船舶安全管理方面的证书有()。 Ⅰ.符合证明; Ⅱ.符合证明的副本; Ⅲ.船舶安全管理证书; Ⅳ.船舶安全管理证书的副本。
Which of the following statements represents the function of the compression rings installed at the top of a diesel Engine piston?()

In a trunk type diesel engine piston, the thickness of the head or crown is determined by the()
Ⅰ.statically balanced
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A公司与B公司签订《船舶转让协议》,约定A公司将船舶转让给B公司,转让价格为XX万元B公司交押金X万元,以后每月支付船价及利息X万元,如两个月内不付转让费,A公司有权收回船舶由B公司负责办理船舶营运手续B公司中途无故退回船舶,已付的转让费不再退回,等等。B公司经营船舶一年后,以A公司提供的船舶陈旧,操纵性能差等为由,向A公司提出终止船舶转让协议。A公司欲协商,但协商不成,A公司收回船舶国籍证书,船舶技术证书及营运证书。该协议属海商法范围内的何种合同?该协议是否有效
The cooling of the piston is carried out by circulating () across the underside of the crown and inside the ring belt or through specially shaped passages.
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Sudden unloading of a diesel engine can cause().
Bridge gauge can be used to measure () of a diesel engine.
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