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Quartz is a __________ material.

A. Diamagnetic

B. Ferromagnetic

C. Ferroelectric

D. Piezoelectric

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  1. __________ wire is never used for making the heating element.
  2. Two wires of the same radius & material having length in the ratio of 1 : 2 are stretched by the same…
  3. Damage to metal surface by mechanical action is called
  4. According to thermodynamic Fahrenheit scale, the fundamental interval between ice point to steam point…
  5. In the blast furnace, incorporation of water vapour in the blast gives the following effect.
  6. Absolute zero pressure can be attained at a temperature of
  7. Normalising does not __________ of a metal.
  8. In electrical resistance welding, distortion results from the use of improper
  9. In case of a, centrifugal pump, the ratio h1/h2 is termed as the __________ efficiency (where, h1 =…
  10. Alloy powder manufactured by the following process have spherical shapes.
  11. In a forced draft cooling tower, water is cooled from 95 to 80°F by exposure to air with a wet bulb…
  12. Quartz is a __________ material.
  13. Biological shield in a nuclear reactor is generally provided to protect against the
  14. One face of a furnace wall is at 1030°C and the other face is exposed to room temperature (30°C).…
  15. In a boundary layer developed along the flow, the pressure decreases in the downstream direction. The…
  16. A particle is settling in a liquid under Stokesian conditions. The free falling velocity of the particle…
  17. Which of the following parameters is not responsible for the heat loss from a hot steam carrying bare…
  18. Maraging steels derive their strength from the following mechanism:
  19. Gratings is associated with the measurement of
  20. The most important function of a washer is to provide bearing area and washers are normally specified…
  21. Otto cycle used in spark ignition petrol engines is also known as the constant __________ cycle.
  22. The maximum thickness of the metal which can be welded using ultrasonic welding is __________ mm.
  23. Heat flow across a hollow sphere of inner radius 'r1' and outer radius 'r2' is directly proportional…
  24. Breakeven point represents the condition, when the company runs under no profit no loss condition. In…
  25. __________ pipe is the most suitable for carrying sanitary drainage.
  26. Glass reacts with
  27. A steam carrying pipeline is insulated with two layers of insulating materials with the inferior insulation…
  28. __________ glass is used in the mercury in glass thermometer meant for measuring a temperature of 500°C.
  29. Which of the following metals is not subjected to electrolytic refining/purification?
  30. Plasma is