The crankshaft of diesel engine is supported by （）.

A、tension stretch

B、tie rods

C、through bolts

D、main bearings

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更多“The crankshaft of diesel engine is supported by （）.”相关的问题

第1题

[] In a four-stroke/cycle diesel engine, the camshaft rotates at （）

A、A.twice the crankshaft speed B、B.half the crankshaft speed C、C.the same speed as that of the crankshaft D、D.a speed independent of that of the crankshaft

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第2题

[单选题] The main moving parts of a diesel engine consist of the （） and the pistons.

A、bedplate, connecting rods B、crankshaft, the connecting rods C、frames, crossheads D、crankshaft, the cylinder

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第3题

[单选题] The four-stroke cycle is so called because it takes （） to complete the processes needed to convert the energy in the fuel into work.

A、two strokes of the piston B、four strokes of the piston C、one revolution of the crankshaft D、four revolutions of the crankshaft

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第4题

[单选题] Critical speed in diesel engines occurs when engine torque pulsations become （）

A、opposed to the crankshaft rocking couple B、resonant with the crankshaft natural frequency C、critical fore and aft crankshaft vibrations D、horizontal whipping motions of the crankshaft

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第5题

[单选题] One method of determining crankshaft misalignment is by（）

A、laying a straight edge across the crank webs at the crankpin and measuring the distance to the crankpin in two places B、measuring the crank drop on either side of each crank throw while the crankshaft is slowly rotated through one revolution C、rotating the crankshaft through one revolution, pausing each 90oof rotation to measure bearing clearances, top and bottom D、taking micrometer reading between the crank cheeks opposite the crankpin every 90°of crank angle rotation