2023 2024 EduVark > Education Discussion > General Discussion


  #1  
June 17th, 2014, 04:01 PM
Super Moderator
 
Join Date: Mar 2012
KPCL Previous year Question Papers

Can you give me question paper for Karnataka power corporation limited for get job in Karnataka power corporation limited

Here I am giving you question paper for Karnataka power corporation limited in file attached with it so you can get it easily.

The chronological order of strokes in a four stroke petrol engine is:
1] Suction stroke, working stroke, compression stroke and exhaust stroke.
2] Suction stroke, compression stroke, working stroke and exhaust stroke.
3] Compression stroke, working stroke, suction stroke and exhaust stroke.
4] Compression stroke, suction stroke, working stroke and exhaust stroke.

The enthalpy of steam is defined as:
1] Difference of internal energy and product of pressure and volume.
2] Product of internal energy and pressure.
3] Sum of internal energy and product of pressure and volume.
4] Amount of heat change divided by the absolute temperature.

Which of the following operations can be performed using a drilling machine?
A. Reaming B. Countersinking C. Spot Facing D.
Thread tapping
1] Only A, B and D 2] Only B, C and D 3] Only A, B and C 4] All of
these

Which of the following are the advantages of impulse turbine over reaction turbines?
A. Occupies less space per unit power.
B. Compounding is not necessary for speed reduction as the rotor speeds are usually low.
C. Suitable for high power generation.
1] B and C only 2] A only 3] C only 4] A and C only

Maximum power transfer through line V1= 110 kv, V2= 100kv, X=22 ohm is
a 500 MW
b 500 KW
c 250 MW
d 250 KW
Ans: 500 MW

Q.Which type of power plant requires maximum expenditure
a Hydel power plants
b Nuclear power plants
c Thermal power plants
d Gas based power plants

Q.Base load of a power station stands for
a 2-4 hours/day
b 4-8 hours/day
c 8-12 hours/day
d 12-24hours/day
Ans: 12-24hours/day

Q.A wire is placed on the top of a transmission line to protect from
a surge high voltage
b Direct lightning strocks
c indirect lightnin strocks
d Switching over voltages
Ans: Direct lightning strocks

Q.A wire is placed on the top of a transmission line acts as
a acts as a phase wire
b acts as neutral
c acts as a transmission wire
d acts as ground wire

Which of the following can be magnified by magnetic amplifier
(a) voltage
(b) current
(c) power
(d) none of above

The inductance is not used in lag network because of
(a) big size
b) time delay and hysteresis losses
(c) high reactance
(d) none of these

Saturation in a stable control system can cause
(a) conditional stability
(b) over damping
(c) low level oscillations
(d) high level oscillations

Excessive noise in control systems can cause
a) reduction in bandwidth
(b) reduction in gain
(c) saturation in amplifying stages
(d) oscillations

The type-0 system has
(a) net pole at the origin
(b) no pole at the origin
(c) simple at one origin
(d) two poles at the origin

In control systems, excessive bandwidth should be avoided because
(a) noise is proportional to bandwidth
(b) it leads to low relative stability
(c) it leads to slow speed of response
(d) none of these

In most systems, an increase in gain leads to
(a) larger damping ratio
(b) smaller damping ratio
(c) constant damping ratio
(d) none of these

A step function is applied to the input of a system and output is of the form y = t, the system is
(a) stable
(b) unstable
(c) not necessarily stable
(d) conditionally stable

The function of the safety resistor in ohm meter is to
(a) limit the current in the coil
(b) increase the voltage drop across the coil
(c) increase the current in the coil
(d) protect the battery

Which of the following instruments is free from hysteresis and eddy current losses?
(a) M.l. instrument
(b) electrostatic instrument
(c) electrodynamometer type instrument
(d)all of these

The dielectric loss of a capacitance can be measured by
(a) Wien bridge
(b) Owen bridge
(c) Schering bridge
(d) Maxwell bridge

Reed frequency meter is essentially a
(a) recording system
(b) deflection measuring system
(c) vibration measuring system
(d) oscillatory measuring system

In measurements made using a Q meter, high impedance elements should preferably be connected in
(a) star
(b) delta
(c) series
(d) parallel

A digital voltmeter measures
(a) peak value
(b) peak-to-peak value
(c) rms value
(d) average value

1. Pick out the one which does not belong to majority of items i.e; the odd thing
a. Leaf spring suspension
b. Coil spring suspension
d. Air suspension
Ans : A

2. Which of the following factors is not related to the effect of independent front suspension
a. Reducing the unsprung masses
b. Reducing tyre wear
d. Elimination of gyroscopic couples
Ans : D

3. The main function of the suspension system is best described as
a. Reducing the body movement
b. Reducing the accelerations to which the body is subjected
Ans : A

4. Helper springs are usually used
a. In heavy vehicles in suspension system to obtain a two stage spring rate
b. In vehicles to improve the load capacity of suspension system
d. To stiffen the suspension
Ans : A

5. Parts of the brake system include brake-shoes and
a. Master brake cylinder
b. Engine cylinders
Ans : C

6. In the power steering assembly having four valves, two distribution and two reaction during neutral, or straight- ahead driving, all four valves are
a. Fully closed
b. Partly open
Ans : C

7. As the steering wheel is turned a worm gear on steering shaft causes the end of the ………….. to swing toward one side or the other of the car
a. King pin
b. Steering gear
Ans : C

8. On the coaxial steering gear, the gear housing is lubricated
a. From the hydraulic system
b. From the worm housing
Ans : A

9. Turning the adjustment screw to make the over centre adjustment causes
a. End-wise movement of the ball nut
b. End-wise movement of the Pitman shaft
d. End-wise movement of steering shaft
Ans : A

10. Air resistance to a car at 20 km/hr is R .The air resistance at 40 km/hr would be
a. R
b. 2R
d. R2
Ans : C

11. Which one of the following is not apart of the chassis
a. Wheels
b. Front axle
d. Passenger seats
Ans : D

12. In the linkage type of power steering system, the piston rod is attached at one end to
a. A tie rod
b. A connecting rod
Ans : B

13. In the linkage type of power steering system, the swinging end of the pitman arm actuates
a. A spool valve
b. A tie rod
d. An idler lever
Ans : B

14. In the constant control power steering unit the spool valve is moved by
a. A pivot lever
b. A valve rotor
Ans : B

15. In the coaxial power steering unit, the spool valve
a. Rotates
b. Moves end-wise
Ans : A

16. In the Saginaw rotary valve unit, rotation of the valve spool from the neutral position results in application of hydraulic oil pressure from the oil pump to one or the other and of the
a. Pitman arm
b. Connecting rod
d. Disc clutch
Ans : C

17. In the Saginaw in line unit, end-wise movement of the valve spool is caused by reaction between the
a. Worm and ball nut
b. Piston and valve
Ans : B

18. In the Saginaw in line power steering unit, the valve spool is centered in neutral by
a. Centering springs
b. Oil pressure
d. Torsion bar
Ans : D

19. Three types of oil pumps used in power steering system are vane, roller and
a. Shoe
b. Slipper
Ans : C

20. The two basic types of power steering system are
a. Integral and valve
b. Booster and power
Ans : C

21. In the steering gear of the linkage connecting to the wheel, steering knuckle, a gear sector, stud or toothed roller is meshed with
a. A worm
b. A ball bearing
Ans : A

22. The steering gear is a device for converting the rotary motion of the steering wheel into
a. To and fro movement
b. Up and down movement
Ans : A

23. In the steering gear, a gear sector or toothed roller is meshed with
a. A Worm
b. A ball bearing
d. Steering wheel
Ans : A

24. The only time the steering wheel requires replacement would be
a. Wheel bearing replacement
b. An accident
Ans : B

25. As the steering wheel is turned a worm gear on the steering shaft causes the movement of the
a. King pin
b. Steering gear
Ans : C

1. Mho relay is usually employed for the protection of
a) Short lines only
b) Medium lines only
c) Long lines only
d) Any line
Ans: Long lines only

2. A modern power semiconductor device IGBT is combines the characteristics of
a) BJT and MOSFET
b) FCT and GTO
c) SCR and MOSFET
d) SCR and BJT
Ans: BJT and MOSFET

3. For a single-phase a.c. to d.c. controlled rectifier to operate in regenerative mode, which of the following conditions should be satisfied?
a) Half –controlled bridge, a 90°, source of e.m.f. in load
c) Full-controlled bridge, a > 90°, source of e.m.f. in load
d) Full-controlled bridge, a 90°, source of e.m.f. in load

4. Which is the most suitable power device for high frequency ( more 100 kHz) switching application?
a) Power MOSFET
b) BJT
c) SCR
d) UJT
Ans: Power MOSFET

5. In a thyristor Latching current is ________ than Holding current
a) Equal
b) Less
c) Greater
d) None
Ans: Greater

6. The transfer function of a system is 10/(1+s) when operating as a unity feedback system, the steady state error to a step input will be
a) 0
b) 1/11
c) 10
d) Infinity
Ans: 1/11

7. Which one of the following statements for a dc machine which is provided with inter pole winding (IW) as well as compensating winding (CW) is correct
a) Both IW and CW are connected in series with Armature winding
b) Both IW and CW are connected in parallel with Armature winding
c) IW connected in series but CW is connected in parallel with Armature winding
d) CW connected in series but IW is connected in parallel with Armature winding
Ans: Both IW and CW are connected in series with Armature winding

8. A 0-10 mA PMMC ammeter reads 5mA in a circuit; its bottom control spring snaps out suddenly the meter will now read.
a) 5mA
b) 10mA
c) 2.5mA
d) 0
Ans: 0

9. A dc cumulatively compounded motor delivers rated load torque at rated speed. If series field is short circuited, then the armature current and speed will
a) Both increases
b) Both decreases
c) Increases and decreases
d) Decreases and increases
Ans: Both increases

10. Moving coil in dynamometer wattmeter connected
a) In series with fixed coil
b) Across supply
c) In series with load
d) Across load
Ans: Across supply

11. In an induction machine, if the air gap increased
a) Speed will be reduced
b) Efficiency will be improved
c) Power factor will be lowered
d) Breakdown torque will be reduced
Ans: Power factor will be lowered

12. A CRO screen has ten divisions on the horizontal scale. If a voltage signal 5 sin 314t+45 deg)is examined with a line base settings of 5 msec/div, the number of cycles of signal displayed on the screen will be
a) 0.5 cycles
b) 2.5 cycles
c) 5 cycles
d) 10 cycles
Ans: 2.5 cycles

13. A 3-phase 50HZ SCIM takes a power input of 30 KW at its full load speed of 1440 rpm. Total stator losses are 1 KW. The slip and rotor ohmic losses at full load are
a) 0.02, 600 W
b) 0.04, 580 W
c) 0.04, 1160 W
d) 0.04, 1200 W
Ans: 0.04, 1160 W

14. Thermocouple is used to measure
a) AC
b) DC
c) Both
d) None
Ans: Both

15. The two watt meters measurement the ratio of two meter readings is –(1-sqrt3) 1+sqrt3) then the power factor is
a) 1
b) 0.866
c) 0.707
d) 0
Ans: 0.707

16. Hays bridge is used to measure___________ and Schering bridge is used to measure____________
a) Inductance, Inductance
b) Inductance, Capacitance
c) Capacitance, Inductance
d) Resistance, Capacitance
Ans: Inductance, Capacitance

17. When sine wave is given as input to Schmitt trigger then its generates
a) Sine wave
b) Saw tooth wave
c) Triangle wave
d) Square wave
Ans: Square wave

18. In Gauss Seidel method the following factors are influenced for operation
a) Acceleration factor
b) Selection of slack buss
c) Both
d) None
Ans: Selection of slack buss*

19.
i. (X’+Y’) A. Low-pass filter function
ii. (X’Y’) B. Sum
iii. (XY) C. NAND
D. Carry
E.NOR
a) i-C, ii-E, iii-D
b) i-C, ii-E, iii-B
c) i-C, ii-B, iii-D
d) i-C, ii-E, iii-A
Ans: i-C, ii-E, iii-D

20. The phase lead compensation is used to
a) Increase rise time and decrease overshoot
b) Decrease both rise time and overshoot
c) Increase both rise time and overshoot
d) Decrease rise time and increase overshoot
Ans: Decrease rise time and increase overshoot

21. Voltage feed back amplifier is a
a) Shunt-Shunt
b) Shunt-Series
c) Series-Shunt
d) Series- Series
Ans: Shunt-Shunt

22. In microprocessor the next instruction to be executed is stored in
a) Program Counter
b) Stack Pointer
c) Memory Pointer
d) Accumulator
Ans: Program Counter

23. The following element retains it energy after source is disconnected
a) Resister
b) Inductor
c) Capacitor
d) Thermistor
Ans:

24. In series RLC circuit at resonant
a) Voltage is in phase with current
b) Current is maximum
c) Inductive reactance = Capacitive reactance
d) All of the above
Ans: All of the above

25.For RC low pass filter R=100 K ohms, C= 5 micro farads then lower cutt of frequency is
a) 1 K HZ
b) 0 HZ
c) 381.3 HZ
d) Infinity
Ans:

26. V=100Sin (1000t+46 deg), I=2Sin (1000t+80 deg) what are the elements in the circuit
a) R=30 ohm, L=30 mH
b) R=30 ohm, C=33.3 micro farads
c) R=40 ohm, L=30 mH
d) R=40 ohm, L=33.3 micro farads

Ans: R=40 ohm, L=33.3 micro farads
27. L=10 mH, I=100Sin50t 0
a)
b)
c)
d)
Ans:

28. In dielectric measurement, the dielectric loss is proportional to
a) F
b) V
c) I
d) Vsqr
Ans: Vsqr

29. G(s) = (1-s)/s(s+2) then closed loop transfer function is
a) Unstable
b) Stable
c) Marginally stable
d) All
Ans: Stable

30. G(s) = (1+0.5s)/(1+s) find which type of net work it is
a) Lead net work
b) Lag net work
c) Lag – Lead net work
d) Lead – Lag net work
Ans: Lag net work

31. Temperature of electrode in Arc furnace is
a) 1000 deg
b) 1500 deg
c) 1500 deg to 3500 deg
d) 4500 deg
Ans:

32. In bode plot the point which separates the lower and upper frequencies is called
a) Critical point
b) Cut-off point
c)
d)
Ans:

33. Nyquest stability is used to determine
a) Absolute Stability
b) Relative Stability
c) Both
d) None
Ans: Both*

34. When 220V dc shunt alternator generating the voltage at rated value. If direction of rotation is reversed, then alternator will
a) Build up its voltage with same polarity
b) Build up its voltage with opposite polarity
c) No build up of voltage
d) None
Ans: No build up of voltage

35. Over lap Angle depends on_________
a) Load inductance
b) Loa capacitance
c) Source inductance
d) Source capacitance
Ans: Source inductance

36. Area under speed time curve gives
a) Time
b) Speed
c) Distance
d) None
Ans: Distance

37. The regulation of Short Transmission lines depends up on
a) Distance of line
b) Frequency
c) Power factor
d) All
Ans: Power factor

38. Which of the following plant is having lowest load factor?
a) Diesel Plant
b) Pumped storage Plant
c) Thermal Plant
d) Nuclear Plant
Ans: Diesel Plan

39. For SR latch whent the out put is undesirable
a) 0, 0
b) 1, 0
c) 0, 1
d) 1, 1
Ans: 1, 1

40. For interrupting capacitive currents which Circuit Breaker (CB) is used
a) SF6 CB
b) Oil CB
c) Vacuum CB
d) Air blast CB
Ans: Vacuum CB

41. For V/F control, when frequency is increased in transformer
a) Core loss component current increases, Magnetizing component current decreases
b) Core loss component current increases, Magnetizing component current increases
c) Core loss component current decreases, Magnetizing component current decreases
d) Core loss component current decreases, Magnetizing component current increases
Ans: Core loss component current decreases, Magnetizing component current decreases

42. In ceiling fan the angle between auxiliary winding a main winding is
a) 0 deg
b) 90 deg
c) 180 deg
d) 360 deg
Ans: 90 deg

43. In a shaded pole motor, shaded rings are used to
a) Field flux production
b)
c)
d)
Ans: Field flux production

44. Practical method of improving string efficiency
a) Increasing crass arms length
b) Using different size of insulators
c) Using different insulator materials
d) Using of guard rings
Ans: Increasing crass arms length*

45. In which type of fault all 3-phase components are equal
a) L-G
b) L-L
c) L-L-G
d) 3-Phase fault
Ans: 3-Phase fault

46. 11/220 KV 100 MVA transformers, the primary base voltage rating is 10 KV then secondary base KV is
a) 10 KV
b) 220 KV
c) 220/sqrt3
d)
Ans: 220/sqrt3*

47. Water hamming effect is occurs in
a) Surge tank
b) Penstock
c) Turbine
d) Reservoir
Ans: Penstock

48. Transient stability can be improved by
a) By putting series capacitor
b) By using dynamic resister
c) Auto re-closers
d) All of the above
Ans: All of the above

49. If sending end voltage is Vs at no-load in a transmission line then receiving end voltage is if ABCD parameters of line is given
a) Vs
b) Vs/A
c) 0
d) Infinity
Ans: Vs/A

50. Harmonics are eliminated by using
a) Skewing of rotor
b) Distribution winding
c) Short pitch winding
d) All of the above
Ans: All of the above

51. For parallel operation of transformer at no load, then load shared are equal when
a) Impedance is proportional with respect to own KVA rating
b)
c)
d)
Ans: Impedance is proportional with respect to own KVA rating

52. In Induction motor Slip frequency of rotor current, when rotor speed is Nr. Then rotor producing slip field rotates with respect to stator is
a) Slip frequency
b) Nr
c) Ns
d) None
Ans: Ns

53. Good regulation means
a) Less fluctuations from no-load to full-load
b)
c)
d)
Ans: Less fluctuation from no-load to full-load

54. At dead short circuit at terminals of Alternator then the current I is
a) ZPF Lag
b) ZPF lead
c) Unity power factor
d) 0.8 Power factor lag
Ans: ZPF Lag

55. Full scale Ammeter reading is 10 mA, Voltage across Ammeter is 100 mV. Then for 100 A measurements the power loss in the circuit is
a) 1 W
b) 10 W
c) 100 W
d) 1000 W
Ans: 10 W*

56. When Alternator excitation increases and machine is operating at lagging power factor then
a) I increase
b) I decreases
c) No effect on current
d) None
Ans: I increase

57. Flue gases coming out from furnace is first going through
a) Turbine
b) Economizer
c) Air pre-heater
d) Chimney
Ans: Economizer

58. Two alternators rated are 200 KW at 4% regulation, 400 KW 5% regulation operating in parallel at 50HZ , when supply 600 KW the new frequency is
a) 50
b) 49
c) 51.3
d) 47.7
Ans: 47.7

59. Va and Vb are negative sequence component voltages the difference angle between Va and Vb with respect to Va is
a) 240
b) 120
c) 180
d) 360
Ans: 120

60. 4-Quadrent operation of chopper I is positive but V is may be positive are negative operates in which quadrant
a) 1 and 2
b) 2 and 3
c) 1 and 3
d) 1 and 4
Ans: 1 and 4

61. Heat convection, radiation, and conduction all are takes place in
a) Ice
b) Boiler
c) Refrigerator
d) Flue gases in pipe
Ans:

62. When moving iron meter is used to measure d.c current what is the disadvantage
a) It calibration in rms value
b)
c)
d)
Ans:

63. When maximum power transfer to load is
a) 20 W
b) 50 W
c) 100W
d) 0W
Ans: 0W

64. Find Zbus Parameters
a) Z11=Z12=Z21= j0.1 ohm, Z22=j0.3 ohm
b)
c)
d)
Ans: Z11=Z12=Z21= j0.1 ohm, Z22=j0.3 ohm

65. Find Z11 and Z12
a) Z11=4 ohm, Z12= 2 ohm
b) Z11=4 ohm, Z12= 5 ohm
c) Z11=5 ohm, Z12= 2 ohm
d) Z11=4 ohm, Z12= 3 ohm
Ans:

66. Current in 5 ohm resister is
a) 10 A
b) -10 A
c) 5 A
d) -5 A
Ans: -10 A

67. Find I in the circuit at t=0+
a) 2 A
b) 5 A
c) 7 A
d) 10 A
Ans:

8. Find voltage across inductor at t=0+
a) 0 V
b) 2.5 V
c) 5 V
d) 10 V
Ans: 5 V

69. This wave is applied to the PMMC meter, meter reads
a) 0 V
b) 3 V
c) 2 V
d) 1 V
Ans: 1 V

70. Find Vab
a) Zero
b) 50 at an angle of 90 deg
c) 50 at an angle of 90 deg
d) None
Ans:

71. Find E in the circuit
a) 5 V
b) 10 V
c) 20 V
d) None
Ans: None

72. Vab is reference then angle between Vab and Ib is
a) -15 deg
b) 240 deg
c) 180 deg
d) -45 deg
Ans: -15 deg*

63. When maximum power transfer to load is
Click Here to Show Diagram
a) 20 W
b) 50 W
c) 100W
d) 0W
Ans: 0W

64. Find Zbus Parameters
Click Here to Show Diagram
a) Z11=Z12=Z21= j0.1 ohm, Z22=j0.3 ohm
b)
c)
d)
Ans: Z11=Z12=Z21= j0.1 ohm, Z22=j0.3 ohm

65. Find Z11 and Z12
Click Here to Show Diagram
a) Z11=4 ohm, Z12= 2 ohm
b) Z11=4 ohm, Z12= 5 ohm
c) Z11=5 ohm, Z12= 2 ohm
d) Z11=4 ohm, Z12= 3 ohm
Ans:

66. Current in 5 ohm resister is
Click Here to Show Diagram
a) 10 A
b) -10 A
c) 5 A
d) -5 A
Ans: -10 A

67. Find I in the circuit at t=0+
Click Here to Show Diagram
a) 2 A
b) 5 A
c) 7 A
d) 10 A
Ans: 2 A

68. Find voltage across inductor at t=0+
Click Here to Show Diagram
a) 0 V
b) 2.5 V
c) 5 V
d) 10 V
Ans: 5 V

69. This wave is applied to the PMMC meter, meter reads
Click Here to Show Diagram
a) 0 V
b) 3 V
c) 2 V
d) 1 V
Ans: 1 V

70. Find Vab
Click Here to Show Diagram
a) Zero
b) 50 at an angle of 90 deg
c) 50 at an angle of 90 deg
d) None
Ans:

71. Find E in the circuit
Click Here to Show Diagram
a) 5 V
b) 10 V
c) 20 V
d) None
Ans: None

72. Vab is reference then angle between Vab and Ib is
Click Here to Show Diagram
a) -15 deg
b) 240 deg
c) 180 deg
d) -45 deg
Ans: -15 deg

Last edited by Neelurk; March 17th, 2020 at 10:49 AM.
Similar Threads
Thread
KPCL Assistant and Junior Engineer last year papers of Civil Engineering
Master of Commerce 1st year previous year question papers of IGNOU
University of Madras MBA 1st year previous year question papers in PDF format
B.Com Bank Management 2nd Year previous year question papers of Tamil Nadu Open University
KPCL Assistant and Junior Engineer last year papers of Mechanical Engineering
KPCL Assistant and Junior Engineer last year papers of Electrical Engineering
IIT JEE Advanced last year or previous year question papers in PDF format
IIT JEE Mains last year or previous year question papers in PDF format
WIPRO WASE previous year question papers of previous years free download
TNOU MBA-Second Year Project Management (MSP-60) previous year's question papers
University of Kerala previous year question papers of B.Com 1st year free download
University of Kerala B.Com 3rd year previous year question papers
University of Kerala 3rd year B.Com previous year question papers
Previous year question papers of Andhra University B.Com 1st year
PTU previous year question papers b tech ECE 1st year



Quick Reply
Your Username: Click here to log in

Message:
Options



All times are GMT +5. The time now is 03:22 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.6.0

1 2 3 4 5 6 7 8