When the primary direct crank of a reciprocating engine makes an angle of 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 angle

1.	When the primary direct crank of a reciprocating engine makes an angle of with the line of stroke, then the secondary direct crank will make an angle of __________ with the line of stroke.
A.	/2
B.
C.	2
D.	4
Answer» D. 4