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MCQs

Total Questions : 1124 | Page 111 of 113 pages
Question 1101. 0. Flash point of fuel oil is
  1.    Minimum Temperature to Which Oil Is Heated In Order To Give Off Inflammable Vapours In Sufficient Quantity To Ignite Momentarily When Brought In Contact With A Flame
  2.    Temperature At Which It Solidifies Or Congeals
  3.    Temperature At Which It Catches Fire Without External Aid
  4.    Indicated By 90% Distillation Temperature, i.e. When 90% Of Sample Oil Has Distilled Off
 Discuss Question
Answer: Option A. -> Minimum Temperature to Which Oil Is Heated In Order To Give Off Inflammable Vapours In Sufficient Quantity To Ignite Momentarily When Brought In Contact With A Flame
Question 1102. 1. The mean effective pressure obtained from engine indicator indicates the
  1.    Maximum Pressure Developed
  2.    Minimum Pressure
  3.    Average Pressure
  4.    Exhaust Pressure
 Discuss Question
Answer: Option C. -> Average Pressure
Question 1103. 7. Air fuel ratio for idling speed of a petrol engine is approximately
  1.    1 : 1
  2.    5 : 1
  3.    10:01
  4.    15 : 1
 Discuss Question
Answer: Option C. -> 10:01
Question 1104. 2. For the same power developed in I.C. engines, the cheaper system is
  1.    Naturally Aspirated
  2.    Supercharged
  3.    Centrifugal Pump
  4.    Turbo Charger
 Discuss Question
Answer: Option B. -> Supercharged
Question 1105. 5. Which of the following is the lightest and most volatile liquid fuel
  1.    Diesel
  2.    Kerosene
  3.    Fuel Oil
  4.    Gasoline
 Discuss Question
Answer: Option D. -> Gasoline
Question 1106. 3. Installation of supercharger on a four-cycle diesel engine can result in the following percentage increase in power
  1.    Upto 25%
  2.    Upto 35%
  3.    Upto 100%
  4.    Upto 75%
 Discuss Question
Answer: Option C. -> Upto 100%
Question 1107. 4. Scavenging is usually done to increase
  1.    Thermal Efficiency
  2.    Speed
  3.    Power Output
  4.    Fuel Consumption
 Discuss Question
Answer: Option C. -> Power Output
Question 1108. 6. The theoretically correct air fuel ratio for petrol engine is of the order of
  1.    6 : 1
  2.    9 : 1
  3.    12 : 1
  4.    15 : 1
 Discuss Question
Answer: Option D. -> 15 : 1
Question 1109. 8. Air fuel ratio at which a petrol engine can not work is
  1.    8 : 1
  2.    10 : 1
  3.    15 : 1
  4.    20 : 1 And Less
 Discuss Question
Answer: Option D. -> 20 : 1 And Less
Question 1110. 9. For maximum power generation, the air fuel ratio for a petrol engine for vehicles, is of the order of
  1.    9 : 1
  2.    12 : 1
  3.    15 : 1
  4.    18 : 1
 Discuss Question
Answer: Option B. -> 12 : 1

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