- (A) 1 : l
- (B) 2:1
- (C) 3 : 2
- (D) 2 : 3
- (E) 1 : 2
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- (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
- (A) brittle when cold
- (B) brittle when hot
- (C) brittle under all conditions
- (D) ductile at high temperature
- (E) hard when hot
- (A) brittle
- (B) ductile
- (C) elastic
- (D) plastic
- (E) tough
- (A) Brinell
- (B) Rockwell
- (C) Vicker
- (D) Shore’s sceleroscope
- (E) none of the above
- (A) decreasing the cross-section area of’ bar
- (B) increasing the cross-section area of bar
- (C) remain unaffected with cross-section area
- (D) would depend upon other factors
- (E) none of the above
- (A) be independent of ratio of mass of load W to mass of bar (y)
- (B) increase with increase in y
- (C) decrease with decrease in y
- (D) depend on other considerations
- (E) none of the above
- (A) variation in properties of material from point to point in a member
- (B) pitting at’points or areas at which loads on a member are applied
- (C) abrupt change of section
- (D) all of the above
- (E) none of the above
- (A) increases the seriousness of static load-ing stress concentration
- (B) lessens the seriousness of static load¬ing stress concentration
- (C) has no effect on it
- (D) depends on other considerations
- (E) none of the above
- (A) electroplating
- (B) polishing
- (C) coating
- (D) shot peening
- (E) heat treating
