單項選擇題The crankshaft receives and transmits the full working power of the engine and is subjected to fluctuating （）.

A.bending stresses彎曲應(yīng)力
B.torsion stresses扭轉(zhuǎn)應(yīng)力
C.shear stresses剪應(yīng)力
D.All of the above


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1.單項選擇題The crankshaft of diesel engine is supported by （）.

A.tension stretch
B.tie rods
C.through bolts
D.main bearings

2.單項選擇題The crankshaft is of the semi-built type, with the （） being shrunk into the forged or cast steel crank throws.

A.journal
B.crank-pin
C.main bearing
D.large end of connecting rod

3.單項選擇題The crankshaft is of the semi built type, with the journal （） the forged or cast steel crank throws.

A.shrunk into
B.expanded into
C.extended into
D.designated into

4.單項選擇題The crankshaft is of the semi built type, with the journal （） the forged or cast steel crank throws.

A.being shrunk into
B.to be shrunk into
C.to be shrunk with
D.shrinking into

5.單項選擇題The crankshaft deflection is at first to be （） before and after repair.

A.disassembled
B.renewed
C.measured
D.regulated