Mechanical Engineering - Theory of machines - Discussion

Discussion Forum : Theory of machines - Section 1 (Q.No. 32)
32.
For a twin cylinder V-engine, the crank positions for primary reverse cranks and secondary direct cranks are shown in the below figure. The engine is a
30° V-engine
60° V-engine
120° V-engine
150° V-engine
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
23 comments Page 1 of 3.

ABBUTALEEM said:   3 years ago
1) The angle between the primary reverse crank is equal to 2 times the angle between the line of stroke of the cylinders.

2) The angle between secondary direct cranks is equal to the angle between the line of stroke of the cylinders.

Hence, the above figure satisfies these two statements. So the angle between the line of stroke is 60°.
(1)

Rohan Singla said:   7 years ago
The angle is taken with respect to X- Axis and the angle of primary direct or primary reverse crank with x-axis is the angle of v engine. Hence it's 30 V-engine.

ADMIN said:   10 years ago
See in figure 1. The angular velocity given is w. Now the angle given is between two cranks so measuring with respect to x-axis we get 30 degree.

Satish said:   7 years ago
Angle b/w Primary Reverse crank = 2 X Angle b/w Line of Stroke.

Angle b/w Secondary direct crank = Angle b/w Line of Stroke.

Krunal said:   8 years ago
Answer is right.

The given values are for primary reverse crank and secondary direct crank.

Bibin Emmanuvel said:   8 years ago
Ans:60.

Angle between secondary direct is the angle of we engine.

Vinayak said:   8 years ago
I think it is 60° Because from the centre of axis.

Neeraj said:   9 years ago
Yes, it is 60° taking Angeles from vertical axis.

Shravan said:   8 years ago
Can any one explain why for 30 or 60? Please explain.

Ganeshr said:   4 years ago
Right, it should be 30+30=60° v engine.


Post your comments here:

Your comments will be displayed after verification.