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MCQs

Total Questions : 206 | Page 1 of 21 pages
Question 1. Kerosene is used as coolant, while machining
  1.    mild steel
  2.    cast iron
  3.    stainless steel
  4.    aluminium
 Discuss Question
Answer: Option B. -> cast iron


cast iron


Question 2. In a pertrol engine the theoretical ratio of air to fuel is approximately
  1.    3:1
  2.    5:1
  3.    15:1
  4.    30:1
 Discuss Question
Answer: Option B. -> 5:1


5:1


Question 3. Bore and stroke of a double acting steam engine cylinder are 30 cms and 50 cms respectively. If the IHP on crank end is 1% less than IHP on cover end, the diameter of piston rod is
  1.    1 cm
  2.    2 cm
  3.    3 cm
  4.    2.5 cm
 Discuss Question
Answer: Option C. -> 3 cm


3 cm


Question 4. Chunk used on turret lathe is
  1.    Four jaw self centering chunk
  2.    Collect chunk
  3.    Three jaw independent chunk
  4.    Magnetic chunk
 Discuss Question
Answer: Option C. -> Three jaw independent chunk


Three jaw independent chunk


Question 5. A perfect gas at 27 C is heated at constant pressure as to trible its volume the temperature of the gas will be
  1.    81 deg C
  2.    270 deg C
  3.    627 deg C
  4.    900 deg C
 Discuss Question
Answer: Option A. -> 81 deg C


81 deg C


Question 6. The number of valves in a two stroke engine is
  1.    0
  2.    1
  3.    2
  4.    4
 Discuss Question
Answer: Option A. -> 0


0


Question 7. The angular speed of watt governor, when its height is 98 mm is equal to
  1.    10 rad/s
  2.    9.8 rad/s
  3.    98 rad/s
  4.    5 rad/s
 Discuss Question
Answer: Option A. -> 10 rad/s


10 rad/s


Question 8. First law of the thermodynamics deals with conversation of
  1.    mass
  2.    heat
  3.    momentum
  4.    energy
 Discuss Question
Answer: Option D. -> energy


energy


Question 9. The area under pressure volume curve of any thermodynamic process represents
  1.    heat rejected only
  2.    heat absorbed only
  3.    heat absorbed and rejected
  4.    work done
 Discuss Question
Answer: Option C. -> heat absorbed and rejected


heat absorbed and rejected


Question 10. For chain drives the small sprockets should have a minimum number of teeth of
  1.    17
  2.    25
  3.    27
  4.    31
 Discuss Question
Answer: Option A. -> 17


17


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