Q. Bearings subjected to light load are made of

  • (A) Phosphorous bronze
  • (B) Monel
  • (C) Silicon bronze
  • (D) White metal
πŸ’¬ Discuss
βœ… Correct Answer: (A) Phosphorous bronze

Q. Caustic soda is produced in a mercury cell having anode and cathode made respectively of moving mercury and

  • (A) Moving mercury and crimped steel wire
  • (B) Moving mercury and carbon
  • (C) Graphite and moving mercury
  • (D) Moving mercury and graphite
πŸ’¬ Discuss
βœ… Correct Answer: (C) Graphite and moving mercury

Q. In the kraft (sulphate) process for the paper manufacture, the digestor is made of

  • (A) Cast iron
  • (B) Karbate carbon
  • (C) Wrought iron
  • (D) Stainless steel
πŸ’¬ Discuss
βœ… Correct Answer: (D) Stainless steel

Q. Which of the following crystal structures characterises the austenitic stainless steel?

  • (A) Simple hexagonal
  • (B) Body centred cubic
  • (C) Face centred cubic
  • (D) None of these
πŸ’¬ Discuss
βœ… Correct Answer: (C) Face centred cubic

Q. Which of the following is a light alloy?

  • (A) Monel metal
  • (B) Dow metal
  • (C) German silver
  • (D) Babbit metal
πŸ’¬ Discuss
βœ… Correct Answer: (B) Dow metal

Q. Which of the following has no effect on the carbide forming tendency in steels?

  • (A) Molybdenum
  • (B) Phosphorus
  • (C) Chromium
  • (D) Vanadium
πŸ’¬ Discuss
βœ… Correct Answer: (B) Phosphorus

Q. Which of the following has a very high carbide forming tendency in steels?

  • (A) Silicon
  • (B) Chromium
  • (C) Nickel
  • (D) Vanadium
πŸ’¬ Discuss
βœ… Correct Answer: (D) Vanadium

Q. Cast irons are generally specified by their

  • (A) Carbon content
  • (B) Tensile strength
  • (C) Hardness
  • (D) Manufacturing proces
πŸ’¬ Discuss
βœ… Correct Answer: (B) Tensile strength

Q. Which of the following is produced by addition polymerisation?

  • (A) Polybutadiene
  • (B) Dacron
  • (C) Urea-formaldehyde
  • (D) Phenol formaldehyde
πŸ’¬ Discuss
βœ… Correct Answer: (A) Polybutadiene

Q. Ammonium chloride solution is stored/ treated in __________ vessels/pipes.

  • (A) Plain carbon steel
  • (B) Stainless steel
  • (C) Rubber or durmet-20 lined
  • (D) Lead
πŸ’¬ Discuss
βœ… Correct Answer: (C) Rubber or durmet-20 lined

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