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MCQs

Total Questions : 5013 | Page 495 of 502 pages
Question 4941. The bank of tubes located at the back of the domestic refrigerators are the _______________ tubes?
  1.    Refrigerant cooling
  2.    Evaporator
  3.    Condenser
  4.    Throttling
 Discuss Question
Answer: Option C. -> Condenser
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 4942. Latent heat of dry steam at atmospheric pressure is 539 Kcal/kg; which _____________ with increase in the pressure of steam?
  1.    Decreases
  2.    Increases
  3.    Remain same
  4.    May increase or decrease
 Discuss Question
Answer: Option A. -> Decreases
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 4943. With increasing carbon percent in steel beyond 0.8%, its ultimate tensile strength (UTS) and _____________ is not affected ?
  1.    Impact strength
  2.    Percent elongation
  3.    Hardness
  4.    Both B & C
 Discuss Question
Answer: Option A. -> Impact strength
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 4944. ______________ is not used as the control rod material in a nuclear reactor ?
  1.    Cobalt
  2.    Hafnium
  3.    Cadmium
  4.    Boron
 Discuss Question
Answer: Option A. -> Cobalt
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 4945. Which of the following can be manufactured using powder metallurgy techniques ?
  1.    Brake linings
  2.    Bearings
  3.    Carbide tool tips
  4.    All A, B and C
 Discuss Question
Answer: Option D. -> All A, B and C
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 4946. Pick out the wrong statement about nucleate boiling ?
  1.    Bubble generation is by expansion of entrapped gas/vapour at small cavities in the surface
  2.    Surface temperature is greater than the saturation temperature of the liquid
  3.    Heat transfer from the surface of the liquid is less than that in film boiling
  4.    The temperature is less than that of film boiling
 Discuss Question
Answer: Option D. -> The temperature is less than that of film boiling
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 4947. _________________ is not a heat treatment process ?
  1.    Cyaniding
  2.    Parkerizing
  3.    Austempering
  4.    Martempering
 Discuss Question
Answer: Option B. -> Parkerizing
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 4948. The effect of friction on the flow of steam through a nozzle is to decrease the _______________ of steam?
  1.    Wetness
  2.    Mass flow rate
  3.    Both A & B
  4.    Neither A nor B
 Discuss Question
Answer: Option C. -> Both A & B
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 4949. Thermit welding is categorised as the ______________________ welding ?
  1.    Forge
  2.    Fusion
  3.    Resistance
  4.    Arc
 Discuss Question
Answer: Option B. -> Fusion
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 4950. Often earing defects are found during deep drawing operation, because the __________________?
  1.    Surface finish of the sheet is poor
  2.    Sheet material has been given substantial spring back
  3.    Starting sheet has planer anisotropy due to its texture
  4.    Starting sheet has normal anisotropy due to its texture
 Discuss Question
Answer: Option C. -> Starting sheet has planer anisotropy due to its texture
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

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