Thermal equivalent of electrical power in practical calculation is __________ kcal/kWh.

A. 746

B. 3000

C. 1000

D. 550

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  1. Basicity of the slag in Indian blast furnace is in the range of
  2. Venturimeter is used to measure the flow rate of fluids in pipes, when the pipe is in __________ position.
  3. Out of the following, the lowest packing of atoms exists in __________ crystal lattice structure.
  4. __________ is the most important element, which controls the physical properties of steel.
  5. Specific gravity of hot metal (pig iron) is __________ times that of the blast furnace slag.
  6. Tumbling is the process of improving the __________ of the materials/parts.
  7. With increase in temperature, the electrical conductivity of a __________ decreases.
  8. In electrical resistance welding, distortion results from the use of improper
  9. Which of the following has the highest modulus of elasticity (about 7 × 106 kg/cm2)?
  10. Increase in the entropy of a system represents the
  11. Austempering of steel requires it to be heated to 875°C followed by sudden cooling to 250-525°C,…
  12. Vibration upto 100 kilo hertz can be most accurately measured by a __________ type accelerometer.
  13. Theoretical volume of oxygen required for complete combustion of 1Nm3 of acetylene, in oxyacetylene…
  14. Joining of thin foils is preferred to be done by
  15. The ratio of the shear stress to the principal stress on a principal plane is
  16. Cold working of a material results in increase in hardness, which is termed as the __________ hardening.
  17. Titanium is produced by __________ of Ti Cl4.
  18. The surface tension of a liquid, at critical temperature is
  19. Ceramic compounds as compared to metallic compounds
  20. __________ is a non volatile film forming constituent of a paint.
  21. The rolling process cannot be used to produce
  22. Metal cutting by oxy-acetylene flame is accomplished by the __________ of the metal.
  23. Work done by a/an __________ process is determined by ∫p. dv
  24. Minimum thermal efficiency of a steam boiler may be around __________ percent
  25. Maximum heat dissipation occurs from a steel wire (k = 0.5 W/m. k) of 15 mm diameter exposed to air…
  26. Thermal conductivity of a material does not depend upon its
  27. With increase in temperature, the electrical conductivity of semiconductors
  28. The size of the tetrahedral void in the closest packing of atoms is __________ that of the octahedral…
  29. Cementite is in the lamellar form in the __________ phase of steel.
  30. The behaviour of a metal specimen, which when plastically strained in tension reduces its yield stress…