A jig is used while __________ a hole.

A. Boring

B. Counter boring

C. Drilling

D. Enlarging

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

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  1. Case hardening of a material is
  2. Normalising of a casting does not
  3. Compressed dry air is used as the cutting fluid, while machining
  4. Angular displacement can be measured suitably by a
  5. Heating the Hypo-eutectoid steels to 30°C above the upper critical temperature line, soaking at…
  6. The __________ of a double acting reciprocating pump as compared to the single acting pump will be almost…
  7. Which of the following represents the correct time-temperature curve when a block of metal is heated…
  8. Heat release during phase change is observed in case of a/an
  9. Diameter of the rivet to be provided on a 20 mm. thick boiler plate will be __________ mm.
  10. The passage between the nozzle and the __________ is called 'sprue' in case of injection moulding.
  11. Carbon is present in the form of __________ in grey cast iron.
  12. Holes for riveting purposes should be preferably made by
  13. Energy of the sun arises mainly from __________ reactions.
  14. Volume of blast furnace slag is about __________ times the volume of hot metal (pig iron) of the same…
  15. Age hardening is connected with
  16. The best lubricants for a machine working at high temperature & load is
  17. Though tin occurs lower than iron in the electrochemical series, yet it is coated on steel for corrosion…
  18. Secondary hardening in steels arises out of the
  19. The hardenability of steel decreases with
  20. For a spontaneous natural process at constant temperature and pressure, the free energy of the system…
  21. Cobalt - 60 is used as a source of __________ in medical therapy & industrial radiography.
  22. A pycnometer is used for the measurement of
  23. High relative humidity decreases the evaporative process and as the temperature is increased, the relative…
  24. Cold working of a material results in increase in hardness, which is termed as the __________ hardening.
  25. With increase in temperature, the electrical conductivity of semiconductors
  26. The pressure drop per unit length for laminar flow of fluid through a long pipe is proportional to (where,…
  27. Increase in the entropy of a system represents the
  28. Blow off cock is provided in steam boiler to
  29. In a counter flow heat exchanger, hot fluid enters at 170°C & leaves at 150°C, while the cold…
  30. For the Stoke's law to be valid in the case of a falling sphere in a fluid, the