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MCQs

Total Questions : 1197 | Page 114 of 120 pages
Question 1131. Which of the following oil is more viscous?
  1.    SAE 30
  2.    SAE 70
  3.    SAE 80
  4.    SAE 40
 Discuss Question
Answer: Option C. -> SAE 80
Question 1132. Which of the following indicates multi-grade oil?
  1.    API 50
  2.    SAE20 W50
  3.    API SF
  4.    SAE 30
 Discuss Question
Answer: Option B. -> SAE20 W50
Question 1133. The oil pump is driven by the
  1.    Crankshaft via drive belt
  2.    Crankshaft directly
  3.    Camshaft
  4.    Alternator shaft
 Discuss Question
Answer: Option B. -> Crankshaft directly
Question 1134. The purpose of adding pigment to the paint is that it
  1.    Makes paint film hard
  2.    Gives colour and filling up effect to the paint
  3.    None of these
  4.    Optimises the viscosity of paint
 Discuss Question
Answer: Option B. -> Gives colour and filling up effect to the paint
Question 1135. One effect of detonation is
  1.    Overheating of engine
  2.    Overcooling of engine
  3.    Delay in ignition
  4.    Loss of power
 Discuss Question
Answer: Option D. -> Loss of power
Question 1136. The main cause for the change in engine oil viscosity is
  1.    Humidity
  2.    Vibration
  3.    Contamination
  4.    Temperature
 Discuss Question
Answer: Option D. -> Temperature
Question 1137. The two kinds of piston rings are
  1.    Pressure and sealing rings
  2.    Oil scrapper and oil control rings
  3.    Compression and oil control rings
  4.    Compression and sliding seal rings
 Discuss Question
Answer: Option C. -> Compression and oil control rings
Question 1138. The function of a first compression ring (top ring) is that it
  1.    Maintains a seal and prevents escape of burned gases and loss of pressure in the combustion chamber
  2.    Creates swirl
  3.    Increases the combustion temperature
  4.    Maintains a seal and prevents the fuel leakage
 Discuss Question
Answer: Option A. -> Maintains a seal and prevents escape of burned gases and loss of pressure in the combustion chamber
Question 1139. The function of oil control rings is that it
  1.    Lubricates the cylinder wall by releasing oil from its hole
  2.    Prevents engine oil from going into the combustion chamber and returns excess lubricating oil off the cylinder wall through the return holes in the piston to the oil pan
  3.    Maintains a seal and prevents escape of burned gases and oil leakage
  4.    Keeps the cylinder wall lubricated by holding oil in its channel
 Discuss Question
Answer: Option B. -> Prevents engine oil from going into the combustion chamber and returns excess lubricating oil off the cylinder wall through the return holes in the piston to the oil pan
Question 1140. Tachometer in a vehicle measures
  1.    Engine r.p.m.
  2.    Distance
  3.    Speed
  4.    Fuel consumption
 Discuss Question
Answer: Option A. -> Engine r.p.m.

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