Lakshya Education MCQs

Question: Tachometer in a vehicle measures
A. Speed
B. Distance
C. Engine r.p.m.
D. Fuel consumption
Answer: Option C
Explanation :

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Question 1. The drive-shafts are connected to the differential and wheel hubs through universal joints because the universal joints
  1.     Absorb the vibrations transferred from the surface of the road
  2.     Compensate for variations in the relative positions of the differential and the wheels which result from bumpy road surfaces or other similar driving conditions.
  3.     Absorb any difference in speed between the left and right wheels when the vehicle is turning
  4.     None of the above
Answer: Option B
Explanation :
Question 2. The main characteristics of a maintenance free (mf) battery is that
  1.     A maintenance free battery requires little maintenance during normal use and it is sufficient to add water instead of an electrolyte containing sulphuric acid
  2.     A maintenance free battery has a relatively short shelf life when compared with standard batteries
  3.     Since it is sealed, the water in maintenance free battery is not lost through evaporation thus accordingly it is not necessary to top up the cells with water
  4.     Recharging of a maintenance free battery is neither required nor possible
Answer: Option C
Explanation :
Question 3. When indicated power (i.p.) and frictional power (f.p.) are known, we can calculate
  1.     Brake power
  2.     Compression ratio
  3.     Specific air consumption
  4.     Mean effective pressure
Answer: Option A
Explanation :
Question 4. When turning a corner
  1.     The front wheels are toeing out
  2.     The front wheels are turning on different angles
  3.     The inside front wheels has a greater angle than the outside wheel
  4.     All of the above
Answer: Option D
Explanation :
Question 5. The sequence order of events in a four stroke engine is
  1.     Suction exhaust power compression
  2.     Suction power compression exhaust
  3.     Suction compression power exhaust
  4.     Exhaust compression power suction
Answer: Option C
Explanation :
Question 6. The torque converter uses ________ to transfer torque.
  1.     Air
  2.     Automatic transmission fluid (ATF)
  3.     Gears
  4.     Steel belt
Answer: Option B
Explanation :

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