Question

In the formula sinΦ=\(\frac{sin⁡θ}{(l/r)}\), what is ϴ?

(a) The angle of inclination of connecting rod with a line of dead centers

(b) The angle of inclination of the crank with a line of action

(c) The angle of inclination of the crank with a line of dead centres

(d) The angle of inclination of the crank with connecting rod

I have been asked this question during an interview for a job.

My doubt stems from IC Engine in section Design of IC Engine Components of Automotive Engine Design

Answer 1

The correct answer is (c) The angle of inclination of the crank with a line of dead centres

Easiest explanation: In the formula sinΦ=\(\frac{sin⁡θ}{(l/r)}\), Φ is the angle of inclination of connecting rod with the line of dead centers and ϴ is the angle of inclination of the crank with a line of dead centres.