A. Brinell
B. Rockwell
C. Vicker
D. Shore’s sceleroscope
E. none of the above
Related Mcqs:
- For steel, the ultimate strength in shear as compared to ultimate strength in tension is ___________________?
A. same
B. 1/2
C. 1/3
D. 1/4
E. 2/3 - The notch angle of the Izod impact test specimen is________________?
A. 10°
B. 20°
C. 30°
D. 45°
E. 60°. - The ultimate strength of steel in tension in comparison to shear is in the ratio of__________________?
A. 1 : l
B. 2:1
C. 3 : 2
D. 2 : 3
E. 1 : 2 - In Vicker’s hardness testing, the pyramid indentor apex is__________________?
A. 40°
B. 122°
C. 136°
D. 152°
E. 161°. - 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
E. 0.5 x diameter of bolt - In testing a material for endurance strength, it is subjected to_______________________?
A. static load
B. dynamic load
C. impact load
D. static as well as dynamic load
E. completely reversed load - Fatigue strength can be increased by__________________?
A. cold working
B. shot peening
C. grinding and lapping surface
D. hot working
E. using gradual changes of section - The permissible stress for carbon steel under static loading is generally taken as__________________?
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 - The endurance limit in shear of carbon steel can be obtained by multiplying the endurance limit in flexure by a factor of____________?
A. 0.25
B. 0.45
C. 0.55
D. 0.65
E. 0.75 - I.S. specifies following total number of grades of tolerances__________________?
A. 18
B. 16
C. 20
D. 22
E. 14
