Category: Machine Design

A. best method
B. extremely hazardous
C. has no effect as regards fatigue strength
D. cheapest method
E. all of the above

A. Young’s modulus
B. coefficient of elasticity
C. elastic limit
D. ultimate tensile strength
E. endurance limit

A. direction of twist of wires in strands is opposite to the direction of twist of strands
B. direction of twist of wires and strands are same
C. wires in two adjacent strands are twisted in opposite direction
D. wires are not twisted
E. none of the above

A. 0.01 micron
B. 0.1 micron
C. 1 micron
D. 10 microns
E. 25 microns

A. 60°
B. 55°
C. 47°
D. 29°
E. none of the above

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
E. 0.5 x diameter of bolt

A. ductile fnaterials
B. brittle materials
C. elastic materials
D. all of the above
E. none of the above

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