_ When the primary direct crank of a reciprocating engine makes an angle of '≈í‚àè' with the line of stroke, then the secondary direct crank will make an angle of _________ with the line of stroke.$?

_ When the primary direct crank of a reciprocating engine makes an ang

1.	_ When the primary direct crank of a reciprocating engine makes an angle of '≈í‚àè' with the line of stroke, then the secondary direct crank will make an angle of _________ with the line of stroke.$?
A.	≈í‚àè/2
B.	≈í‚àè
C.	2≈í‚àè
D.	4≈í‚àè
Answer» D. 4≈í‚àè

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_ When the primary direct crank of a reciprocating engine makes an angle of '≈í‚àè' with the line of stroke, then the secondary direct crank will make an angle of _________ with the line of stroke.$?

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