+1 vote
in Machine Dynamics by (34.3k points)
At which of the following angles in degrees does the tractive force attains a minimum value?

(a) 315

(b) 45

(c) 90

(d) 60

This question was addressed to me at a job interview.

This question is from Variation of Tractive Force topic in division Balancing of Reciprocating Masses of Machine Dynamics

1 Answer

0 votes
by (38.6k points)
Correct choice is (a) 315

The explanation: The tractive force is minimum when (cos θ – sin θ) is minimum, differentiating it with respect to theta gives tan θ = -1

hence maximum/minimum value occurs at 135 or 315 degrees.

Related questions

We welcome you to Carrieradda QnA with open heart. Our small community of enthusiastic learners are very helpful and supportive. Here on this platform you can ask questions and receive answers from other members of the community. We also monitor posted questions and answers periodically to maintain the quality and integrity of the platform. Hope you will join our beautiful community
...