Engineering - Mechanical Engineering

You Are Here :: Home > Mechanical Engineering > Machine Design -General Questions

 
7.

Form coefficient of spring is                        


A. ratio of coil diameter to wire diameter B. load required to produce unit deflection
C. its capability of storing energy D. concerned With strength of wire of spring




8.

I.S. specifies following total number of grades of tolerances                        


A. 18 B. 16
C. 20 D. 22




9.

If a spring is cut down into two springs, the stiffness of cut springs will be                        


A. half B. same
C. double D. unpredictable




10.

If an application calls for stresses on screw threads in one direction only, then the following type of thread would be best suited                        


A. square B. acme
C. buttress D. BSW




11.

If p = bearing pressure on projected bearing area, z = absolute viscosity of lubricant, and N = speed of journal, then the bearing characteristic number is given by                        


A. ZN/p B. p/ZN
C. Z/pN D. N/Zp




12.

If shearing stress in nut is half the tensile stress in a bolt, then nut length should be equal to                        


A. diameter of bolt B. 0.75 x diameter of bolt
C. 1.25 x diameter of bolt D. 1.5 x diameter of bolt




« prev

1

2

3

4

5

6

7

8

9

next »

 
 



© 2013 freshersindia.in ® | Copyrights | Terms & Conditions
   Designed by Freshers India
Catch Us on