A. 10°
B. 20°
C. 30°
D. 45°
E. 60°.

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Related Mcqs:

  1. Tensile strength of a mild steel specimen can be roughly predicted from following hardness test_________________?
    A. Brinell B. Rockwell C. Vicker D. Shore’s sceleroscope E. none of the above...
  2. The property of a material which enables it to resist fracture due to high impact loads is known as__________________?
    A. elasticity B. endurance C. strength D. toughness E. resilience...
  3. If an unsupported uniform cross sectional elastic bar is subjected to a longitudinal impact from a rigid bob moving with velocity v, then a compressive wave of intensity sc is propagated through the bar as follows______________________?
    A. vpE B. vVvF C. WpE/2 D. IvHpE E. none of the above, where E = modulus of elasticity and p = mass density...
  4. At low temperatures (say 75°C) the notched-bar impact value of steel____________________?
    A. increases markedly B. decreases markedly C. remains same D. depends on heat treatment carried out E. none of the above...
  5. The included angle in unified of American National threads is___________________?
    A. 60° B. 55° C. 47° D. 29° E. none of the above...
  6. The edges of a boiler plate are bevelled to an angle of______________?
    A. 30° B. 45° C. 60° D. 80° E. 85°....
  7. The edges of the plates for cylindrical vessels are usually bevelled to an angle of 80° for_________________?
    A. reducing stress concentration B. ease of manufacture C. safety D. fullering and caulking E. all of the above...
  8. In standard taper roller bearings, the angle of taper of outer raceway is___________________?
    A. 5° B. 8° C. 15° D. 25° E. 40°....
  9. Oil in journal bearing should be applied at the point where load is________________?
    A. nil or lightest B. maximum C. average D. any one of the above E. unpredictable...
  10. In Vicker’s hardness testing, the pyramid indentor apex is__________________?
    A. 40° B. 122° C. 136° D. 152° E. 161°....
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