Home

If percentage reduction in area of a certain specimen made of material 'A' under tensile test is 60% and the percentage reduction in area of a specimen with same dimensions made of material 'B' is 40%, then

A. The material A is more ductile than material B

B. The material B is more ductile than material A

C. The ductility of material A and B is equal

D. The material A is brittle and material B is ductile

Please do not use chat terms. Example: avoid using "grt" instead of "great".

You can do it
  1. If Th is the torque resisting capacity of a hollow shaft and Ts is that of a solid shaft, of the same…
  2. Energy can neither be created nor destroyed, but it can be transformed from one form to another. This…
  3. Coke is produced
  4. The kinetic energy per kg molecule of any gas at absolute temperature T is equal to (where Ru = Universal…
  5. The cycle in which heat is supplied at constant volume and rejected at constant pressure is known as
  6. An adiabatic process is one in which
  7. Steam coal is a
  8. Strain is equal to (where l = Original length, and δl = Change in length)
  9. For riveting, the size of hole drilled in plates is __________ shank diameter of rivet.
  10. First law of thermodynamics deals with
  11. The mass of excess air supplied is equal to
  12. Efficiency of a riveted joint is the ratio of its strength (max. load it can resist without failure)…
  13. The torque transmitted by a solid shaft of diameter (D) is (where τ = Maximum allowable shear stress)
  14. In a reversible adiabatic process, the ratio of T1/T2 is equal to
  15. When it is indicated that a member is elastic, it means that when force is applied, it will
  16. The heat absorbed or rejected by the working substance is given by (where ds = Increase or decrease…
  17. Which of the following is an irreversible cycle?
  18. Petrol is distilled at
  19. The amount of heat required to raise the temperature of 1 kg of water through one Kelvin is called
  20. The energy absorbed in a body, when it is strained within the elastic limits, is known as
  21. Mond gas is obtained by
  22. In the torsion equation T/J = τ/r = Gθ/ L, the term J/R is called
  23. Shear modulus is the ratio of
  24. When a gas is heated at constant pressure
  25. The most probable velocity of the gas molecules is given by
  26. In an irreversible process, there is a
  27. The air standard efficiency of an Otto cycle is given by (where r = Compression ratio, and γ =…
  28. When cut-off ratio is __________ the efficiency of Diesel cycle approaches to Otto cycle efficiency.
  29. The heat and mechanical energies are mutually convertible. This statement was established by
  30. The efficiency and work ratio of a simple gas turbine cycle are