Government Polytechnic, Nanded

Question Bank : Emerging Trends Basic Questions on Electrical Vehicles with Answers
Set -3

1. Sir Rudolf Diesel invented diesel engine in which year?

a) 1905 b) 1916 c) 1920 d) 1913

2. Which of these falls under LMV(Light Motor Vehicle) category based on capacity?
a)Motorbikes b) Cars c) Buses d) Trains

3. Abbreviation HEVs stands for what

a) Highly Efficient Vehicles b) Hybrid Electric Vehicles
c) Highly Economic Vehicles d) Highly Engineered Vehicles

4. Which of the following is not a part of the transmission system

a) Clutch b) Axles c) Battery d) Gear box

5. An automobile chassis does not include which one of the following parts
a) Shock absorbers b) Steering system c) Differential d) Brakes

6. The electrical system of an automobile contains which of the following

a) Battery b) Alternators c) Lighting systems d) All of the mentioned

7. ‘Maruti 800’ is a
a) Sedan b) Coupe c) Hatchback d) Sports car

8. What is actual power delivered by the engine known as?

a) Shaft power b) Horse power c) Brake power d) None of the mentioned

9. If ‘T’ is torque(in Nm) and ‘N’ is speed(in rpm) then the required expression for Brake power
‘B.P’ in Watts is
a) 2πNT/6000 b) 2πNT/60 c) πNT/6000 d) πNT/60000

10. The torque available at the contact between road and driving wheel is called
a) Brake power b) Friction power c) Tractive effort d) Engine torque

11. If ‘V’ is vehicle speed(in metres/min) and ‘R’ is radius of driving wheel(in metres) then the
rpm of the driving wheel is given by
a) rpm = V/2πR b) rpm = 2πV/R c) rpm = πR/V d) rpm = πV/R
12. The force that opposes the motion of a vehicle is
a) Rolling resistance b) Gradient resistance
c) Wind or air resistance d) All of the mentioned

13. One Horse Power(H.P) is approximately equal to _____ Watts.

a) 810 b) 545 c) 634 d) 746

14. A heat engine converts heat energy from fuel combustion or any other source into which
type of work
a) Electrical work b) Mechanical work c) Pressure work d) None of the mentioned

15. Which of these is a power absorbing heat engine

a) Steam engine b) Petrol engine c) Air compressor d) None of the mentioned

16. Petrol Engine operate on which of these cycles

a) Otto cycle b) Rankine cycle c) Carnot cycle d) Stirling cycle

17. In a Diesel cycle engine, combustion occurs at

a) Constant pressure b) Constant temperature c) Constant volume d) Constant heat

18. A 150 c.c. two-stroke petrol engine running at 5000 rpm can have a cylinder capacity of a)
150 kW b) 15 kW c) 150 ml d) 7500 cc

19. The transmission system transmits _________ from engine to wheels.

a) Speed b) Power c) Current d) Pressure

20. On what principle does the braking system in the car work?
a) Frictional force b) Gravitational force c) Magnetic force d) Electric force

21. Generally which brakes are on the front wheels?

a) Drum brake b) Disk brake c) Shoe brake d) Double shoe brake

22. What is the colour of a positive plate of a lead-acid battery?

a) White b) Grey c) White d) Brown

23. What should a fully-charged 6 cell automotive battery indicate?

a) 12 V b) 12.6 V
c) The specific gravity of 1.29 at 32℃ d) 12.6 V and the specific gravity of 1.29 at 32℃
24. Where are the electro-optical sensors used?
a) Position and speed measurement b) Piston temperature measurement
c) Cooling water flow measurement d) Lubricating oil flow measurement

25. What is the main use of the strain gauge?

a) To measure viscosity b) To measure velocity
c) To measure temperature d) To measure pressure & Force

26. What is LVDT used to measure?

a) Gas temperature b) Engine speed c) Crank angle d) Large displacement

27. What is mechanical efficiency?

a) The ratio of friction power to brake power
b) The ratio of the brake power to indicated power
c) The ratio of indicated power to friction power
d) The ratio of friction power to indicated power

28. What is volumetric efficiency?

a) A measure of the power of the engine
b) A measure of the speed of the engine
c) A measure of pressure rise in the cylinder
d) A measure of breathing capacity of the engine

29. Which of the following is not an expression electricl power?

a) P=VI b) P=I2R c) P=V2/R d) P=I/R

30. Which of the following statements are true?

a) Power is proportional to voltage only
b) Power is proportional to current only
c) Power is neither proportional to voltage nor to the current
d) Power is proportional to both the voltage and current

31. A 250V bulb passes a current of 0.3A. Calculate the power in the lamp.
a) 75W b) 50W c) 25W d) 90W

32. Kilowatt-hour(kWh) is a unit of?

a) Current b) Power c) Energy d) Resistance
33. The SI unit of power is?
a) kW(kilo-watt) b) KCal/s(KCal per second)
c) Ws(watt-second) d) J/h(joules per hour)

34. Which among the following is a unit for electrical energy?

a) V(volt) b) kWh(kilowatt-hour) c) Ohm d) C(coloumb)

35. Out of the following, which one is not a source of electrical energy?
a) Solar cell b) Battery c) Potentiometer d) Generator

36. A Acid cell battery converts___________

a) Electrical energy to chemical energy b) Chemical energy to electrical energy
c) Mechanical energy to electrical energy d) Chemical energy to mechanical energy

37. Materials which easily allow the passage of electric current are known as ______
a) Insulators b) Conductors c) Dielectrics d) Semi-conductors

38. Which of the following statements are true with regard to resistance?
a) Resistance is directly proportional to a length of the wire
b) Resistance is directly proportional to an area of cross section of the wire
c) Resistance is inversely proportional to the length of the wire
d) Resistance is inversely proportional to the resistivity of the wire

39. The resistance of insulators __________

a) Increases with an increase in temperature
b) Decreases with an increase in temperature
c) Remains the same with an increase in temperature
d) Becomes zero with an increase in temperature

40. Materials having resistance almost equal to zero is _______

a) Semi-conductor b) Conductor c) Superconductors d) Insulators

41. It is preferable to connect bulbs in series or in parallel?

a) Series b) Parallel c) Both series and parallel d) Neither series nor parallel

42. Batteries are generally connected in______

a) Series b) Parallel c) Either series or parallel d) Neither series nor parallel
43. Many resistors connected in series will?
a) Divide the voltage proportionally among all the resistors
b) Divide the current proportionally
c) Increase the source voltage in proportion to the values of the resistors
d) Reduce the power to zero

44. What affect do petrol and diesel engines have on the environment? Click on the correct
statement
a) They help deplete natural resources and contribute to increasing CO2 emissions
b) They help deplete natural resources and reduce CO2 emissions
c) They contribute to increasing CO2 emissions but help reduce global warming
d) They contribute to increasing SO2 emissions

45. Which vehicle uses a high-voltage battery?

a) Electrical b) Hybrid c) Both a) & b) d) None

46. Which vehicle has the smallest number of principle components?

a) Electrical b) Hybrid c) Diesel d) Petrol

47. What is meant by the term regeneration?

a) It’s when electricity is generated during deceleration and braking
b) It’s when the battery is charged during engine idling
c) It’s when the battery is recharged from the mains supply
d) It’s when the battery is discharged

48. How can you identify a high-voltage cable?

a) They are coloured red
b) They have the wording “high-voltage” etched into their insulation
c) They are coloured orange
d) They are coloured black

49. What makes the risk of an electric shock from a high-voltage battery possibly more
dangerous than that from an AC circuit?
a) The higher voltage
b) The lower amperage
c) The greater available amperage
d) The lower voltage

50. What voltage is likely to be available from the battery of an electric vehicle or hybrid?
a) 12V b) 24V c) 100 to 600 V d) 1.5V