RVUNL ME || Machine Design || Quiz 7

Crowning of a pulley is done to

A wire rope is designated by 8×19, find the no. of wire in each strand ______.

The optimum velocity of the belt for maximum power transmission is given by

Where,

P = Initial tension

m = mass per unit length

In a cotter joint, the width of the cotter at the centre is 50 mm and its thickness is 12 mm. The load acting on the cotter is 60 kN. What is the shearing stress developed in the cotter?

Match List-I (Type of keys) with List-II (Characteristic) and select the correct answer using the codes given below the Lists:

List-1

(A). Woodruff key

(B). Kennedy key

(C). Feather key

(D). Flat key

List-II

(1). Loose fitting, light duty

(2). Heavy duty

(3). Self-aligning

(4). Normal industrial use