πŸ“Š Materials And Construction
Q. The high expansion metal normally used in the bimetallic thermometer is __________ temperature measurement.
  • (A) Brass for low
  • (B) Nickel alloys for high
  • (C) Aluminium for all
  • (D) Both A & B
πŸ’¬ Discuss
βœ… Correct Answer: (D) Both A & B
πŸ“Š Materials And Construction
Q. A metallic alloy in which one of the constituent metal is __________ , is called an amalgam.
  • (A) Zinc
  • (B) Mercury
  • (C) Lead
  • (D) Tin
πŸ’¬ Discuss
βœ… Correct Answer: (B) Mercury
πŸ“Š Materials And Construction
Q. The process of heating the cold pressed metallic powder is called __________ in powder metallurgy.
  • (A) Precipitation
  • (B) Fusion
  • (C) Sintering
  • (D) Agglomeration
πŸ’¬ Discuss
βœ… Correct Answer: (C) Sintering
πŸ“Š Materials And Construction
Q. Cast iron has
  • (A) Very high tensile strenth
  • (B) High ductility
  • (C) High malleability
  • (D) Elastic limit close to ultimate breaking strength
πŸ’¬ Discuss
βœ… Correct Answer: (D) Elastic limit close to ultimate breaking strength
πŸ“Š Materials And Construction
Q. Cast iron is
  • (A) Used for making shock resisting parts
  • (B) Manufactured in cupola and is brittle
  • (C) Having compressive strength more than its tensile strength
  • (D) All of the above
πŸ’¬ Discuss
βœ… Correct Answer: (D) All of the above
πŸ“Š Materials And Construction
Q. Cast iron is having very high
  • (A) Proximity between its elastic limit and ultimate breaking strength
  • (B) Ductility
  • (C) Tensile strength
  • (D) All of the above
πŸ’¬ Discuss
βœ… Correct Answer: (A) Proximity between its elastic limit and ultimate breaking strength
πŸ“Š Materials And Construction
Q. Ability of a material to __________ is indicated by its damping capacity.
  • (A) Withstand compression
  • (B) Absorb vibration
  • (C) Absorb shock
  • (D) None of these
πŸ’¬ Discuss
βœ… Correct Answer: (B) Absorb vibration
πŸ“Š Materials And Construction
Q. Zinc is highly __________ at room temperature.
  • (A) Ductile
  • (B) Resistant to atmospheric corrosion
  • (C) Malleable
  • (D) Brittle
πŸ’¬ Discuss
βœ… Correct Answer: (B) Resistant to atmospheric corrosion

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