Skill Innovation & Employability Program Quiz
- 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 - ProProfs]( "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 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
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- B.
2.12 mS + j3.14 mS
- C.
3.14 mS + j2.12 mS
- D.
318.3
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- 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 x, y, 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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