Category: Machine Design

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

A. to produce torque
B. for speed reduction
C. to obtain variable speeds
D. to increase efficiency of system
E. to damp out vibrations

A. same time to reach earth
B. times proportional to weight to reach earth
C. times inversely proportional to weight to reach earth
D. unpredictable
E. none of the above

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
E. nothing

A. right hand with same pitch
B. left hand with same pitch
C. could be left or right hand
D. right hand with fine pitch
E. left hand with fine pitch

A. whose upper deviation is zero
B. whose lower deviation is zero
C. whose lower as well as upper deviations are zero
D. does not exist
E. none of the above

A. surface
B. just below the surface
C. within the core
D. could occur anywhere
E. none of the above

A. 0.4 times
B. 0.6 times
C. 0.7 times
D. 0.8 times
E. 0.9 times the normal diameter of bolt

A. 0.2
B. 0.25
C. 0.50
D. 0.6
E. 0.75

A. cold working
B. shot peening
C. surface decarburisation
D. under-stressing
E. all of the above