Category: Machine Design

A. tensile strength
B. compressive strength
C. shear strength
D. bending strength
E. torsional strength

A. straining
B. fatigue
C. creep
D. sudden loading
E. impact loading

A. ratio of coil diameter to wire diameter
B. load required to produce unit deflection
C. its capability of storing energy
D. indication of quality of spring
E. nothing

A. at bottom
B. at sides only
C. both at bottom and sides
D. could touch anywhere
E. none of the above

A. 0.33
B. 0.4
C. 0.5
D. 0.55
E. 0.6

A. 28
B. 8/2
C. 48
D. 8/4
E. none of the above

A. one smaller nut is tightened over main nut and main nut tightened against smaller one by loosening, creating friction jamming
B. a slot is cut partly in middle of nut and then slot reduced by tightening a screw
C. a hard fiber or nylon cotter is recessed in the nut and becomes threaded as the nut is screwed on the bolt causing a tight grip
D. through slots are made at top and a cotter-pin is passed through these and a hole in the bolt, and cotter spitted and bent in reverse direction at other end
E. none of the above

A. vpE
B. vVvF
C. WpE/2
D. IvHpE
E. none of the above, where E = modulus of elasticity and p = mass density

A. 1 in 5
B. 1 in 10
C. 1 in 24
D. 1 in 40
E. 1 in 50

A. 2000-3000 kg/pm2
B. 3000-4000 kg/cm2
C. 4000-4500 kg/cm2
D. 7500-10,000 kg/cm2
E. 10,000-15,000 kg/cm2