Auto collimator is used to check

A. Flatness

B. Angle

C. Rotor balancing

D. Roughness

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

You can do it
  1. Maximum permissible air velocity in pipelines is about __________ metre/second.
  2. The activity of pure hydrogen gas at 1000°C and 5 atm pressure
  3. __________ wire is never used for making the heating element.
  4. A dense structure of grinding wheel is not used for the
  5. __________ circuit is most commonly used to measure strain with the help of a strain gauge.
  6. Hot extrusion of aluminium is done in the temperature range of __________ °C.
  7. The mechanism involved in the removal of metal in drilling operation is by
  8. Unit of surface tension in S.I. unit is
  9. Which of the following phenomenon/ phenomena is/are diffusion controlled?
  10. The pressure drop per unit length for laminar flow of fluid through a long pipe is proportional to (where,…
  11. Cassiterite is an ore of
  12. The Al2O3 content of cryolite in Hall- Heroult cell is maintained between __________ percent.
  13. Closeness of packing is maximum in case of __________ crystal lattice.
  14. Heat required to raise the temperature of a body by 1 °C is called its
  15. In practice, the compression ratio of compression-ignition (CI) engine ranges from
  16. A furnace is made of a refractory brick wall of thickness 0.5 metre and thermal conductivity 0.7 W/m.°K…
  17. Boiler draught of 10 mm water column is equivalent to
  18. Half life of a radioactive isotope corresponds to the time required for half of the __________ to decay.
  19. For the irreversible reaction, Ca+ 2C = Ca C2 , Δ H°298 = - 60000 J . mole-1 . If a system…
  20. A particle is settling in a liquid under Stokesian conditions. The free falling velocity of the particle…
  21. The rolling process cannot be used to produce
  22. Satellites burn off during re-entry to earth's atmosphere, because of the
  23. Pick out the wrong statement.
  24. Preheating before welding is done to
  25. Pick out the wrong statement.
  26. The minimum and the maximum number of members required to form a Private Limited Joint Stock Company…
  27. Which of the following rays has the least wavelength?
  28. Temper brittleness of a material can be fairly detected by the __________ test.
  29. Change in volume of metals from absolute zero temperature to their melting points is
  30. A polymer is termed as an 'elastomer', if its percentage elongation is more than 100%. An elastomer…