Skill Innovation & Employability Program Quiz

30 Questions | Total Attempts: 152

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Skill Innovation & Employability Program Quiz


Questions and Answers
  • 1. 
     A 470  resistor and a 0.2 F capacitor are in parallel across a 2.5 kHz ac source. The admittance, Y, in rectangular form, is 
    • A. 

      212 

    • B. 

      2.12 mS + j3.14 mS

    • C. 

      3.14 mS + j2.12 mS

    • D. 

      318.3 

  • 2. 
    A positive angle of 30° is equivalent to a negative angle of
    • A. 

      –30°

    • B. 

      –330°

    • C. 

      –60°

    • D. 

      –180°

  • 3. 
    In a series RC circuit, 12 V(rms) is measured across the resistor and 15 V(rms) is measured across the capacitor. The rms source voltage is
    • A. 

      3 V

    • B. 

      27 V

    • C. 

      19.2 V

    • D. 

      1.9 V

  • 4. 
    Solve the following equation for the two roots of x:   x2 — 16 = 0
    • A. 

      X = 2i,   –2i

    • B. 

      X = 4i,   –4i

    • C. 

      X = 4,   –4

    • D. 

      X = 2,   –2

  • 5. 
    Solve the following equation for xy, and z: x – y + z = –1   –x + y + z = –1   x + 2y – 2z = 5
    • A. 

      X = 1,      y = 1,      z = –1

    • B. 

      X = 5/3,      y = 7/6,      z = –1/2

    • C. 

      X = –2/3,      y = –2/3,      z = –1

    • D. 

      X = –1,      y = 1,      z = 1

  • 6. 
    At room temperature the current in an intrinsic semiconductor is due to
    • A. 

      Holes

    • B. 

      Electrons

    • C. 

      Ions

    • D. 

      Holes and electrons

  • 7. 
    Work function is the maximum energy required by the fastest electron at 0 K to escape from the metal surface.
    • A. 

      True

    • B. 

      False

  • 8. 
    If the valve clearances are excessively large, the problem that can arise is
    • A. 

      Overheating of the engine

    • B. 

      Incomplete valve closure

    • C. 

      Fouling of spark plug by gasoline

    • D. 

      None of these

  • 9. 
    The brake pedal during ABS operation
    • A. 

      Is pushed upward forcefully

    • B. 

      Pedal stroke becomes longer

    • C. 

      Transmits slight kickback to the driver's foot

    • D. 

      All of the above

  • 10. 
    Two speed reverse gear arrangement is generally provided in case of
    • A. 

      Passenger cars

    • B. 

      Metadors

    • C. 

      Tractors

    • D. 

      Trucks

  • 11. 
    Odometer is an instrument used for measurement of
    • A. 

      Power

    • B. 

      Fuel consumption

    • C. 

      Engine r.p.m.

    • D. 

      Distance

  • 12. 
    A heat treated glass generally used in automobiles bursts into __________ upon cracking,
    • A. 

      Sharp edged fragments

    • B. 

      Small particles

  • 13. 
    In a four wheel drive (4WD), the number of gear boxes are
    • A. 

      1

    • B. 

      2

    • C. 

      3

    • D. 

      4

  • 14. 
    How many cells are used in a 12 volt car battery ?
    • A. 

      2

    • B. 

      4

    • C. 

      6

    • D. 

      8

  • 15. 
    An over-inflated tyre will wear the tread most near the
    • A. 

      Edges

    • B. 

      Corners

    • C. 

      Centre

    • D. 

      None of these

  • 16. 
    F a tyre is designated as 175/65 R14 82 S, then the aspect ratio for the tyre is
    • A. 

      175

    • B. 

      65

    • C. 

      14

    • D. 

      82

  • 17. 
    Toe-in ensures parallel rolling of the wheel thus stabilizing steering in addition to preventing both sides slipping and excessive tyre wear.
    • A. 

      True

    • B. 

      False

  • 18. 
    The specific gravity of petrol is about
    • A. 

      0.75

    • B. 

      0.85

    • C. 

      0.95

    • D. 

      1.25

  • 19. 
    Which one of the following statement correctly describe the construction of a bevel-gear type differential?
    • A. 

      The drive shafts are splined to the differential carrier.

    • B. 

      The left side gear and the differential carrier rotate in constant unison.

    • C. 

      The differential carrier houses differential pinion gears and side gears, each pinion gear meshes with a different side gear.

    • D. 

      The differential carrier houses differential pinion gears and side gears

  • 20. 
    The brake warning light warns the driver of
    • A. 

      Water in the master cylinder

    • B. 

      Air in the hydraulic system

    • C. 

      Failure of the primary or secondary circuit of hydraulic system

    • D. 

      Power-brake failure

  • 21. 
    Highest useful compression ratio (HUCR) is the highest compression ratio at which the
    • A. 

      Engine can run

    • B. 

      Engine gives maximum output

    • C. 

      Engine is most efficient

    • D. 

      Fuel can be used in a test engine without knocking

  • 22. 
    The formula for Iso-octane is
    • A. 

      C8H18

    • B. 

      C7H17

    • C. 

      C6H18

    • D. 

      C7H18

  • 23. 
    The function of a governor in automobiles is to
    • A. 

      Limit the power

    • B. 

      Limit the vehicle speed

    • C. 

      Maintain constant engine speed

    • D. 

      Maximise the fuel economy

  • 24. 
    Which one of the following statements correctly describes the construction of a planetary gear type differential ?
    • A. 

      The six planetary pinions rotate in constant mesh with the internal gears.

    • B. 

      One drive shaft is splined to the central gear and the other to the planetary gear.

    • C. 

      Each planetary pinion gear meshes with both the central gear and the internal gear.

    • D. 

      The internal gear is fixed to the planetary gear.

  • 25. 
    A petrol engine of a car develops 125 N-m torque at 2700 r.p.m. The car is driven in second gear having gear ratio of 1.75. The final drive ratio is 4.11. If the overall transmission efficiency is 90%, then the torque available at the driving wheels is
    • A. 

      8.091 N-m

    • B. 

      80.91 N-m

    • C. 

      809.1 N-m

    • D. 

      8091 N-m

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