KSEB model question paper

Hello sir I am mukesh and going for appear in KSEB Assistant Engineer recruitment exam and for preparation of this exam I want to collect its modal paper will you plz provide me here

[Quick Sam]

As you are going to appear in KSEB Assistant Engineer recruitment exam , so here I am telling you about this exam pattern :

In KSEB Assistant Engineer recruitment exam :

Each question carries 1 mark.
There are no negative markings.
Answers will be provided for the attempted questions only.
Please try to answer all the question.

On your demand here I am providing a sample paper of KSEB Assistant Engineer recruitment exam:

1) The CPU of a computer consists of
None of the above
Memory and ALU
INPUT and OUTPUT Unit
ALU and Control Unit
2) The capacitance connected between the I/P and O/P of an amplifier affects its high frequency response due to
MILMAN effect
MILLER effect
COLPIT effect
COLLINS effect

3) Which instrument is used to measure low values of resistance ?
Maxwell Bridge
Kelvin Double Bridge
Wheatstone Bridge
Anderson Bridge

4) An ideal OP-AMP has
infinite gain
infinite input impedance
infinite bandwidth
all of the above

5) The number of flip flops required in a decade counter is
3
4
10
2
6) For stability and economic reasons we operate the transmission line with power angle in the range
10° to 25°
65° to 80°
60° to 75°
30° to 45°
7) The transfer function is defined for
Linear and time-variant system
Linear and time-invariant system
Non-linear and time-variant system
All of the above

8) A dc cumulatively compounded motor delivers rated torque at rated speed. If the series fields is short circuited then the armature current and speed will
decrease and increase respectively
both increase
increase and decrease respectively
both decrease

9) The collector current of transistor is always
less than emitter current
none of the above
greater than emitter current
equal to emitter current

10) Which one of the following is not an image file format ?
image.png
image.pdf
image.jpg
image.bmp

11) When resonance occurs in a circuit, the pf is
1
less than 1
0
greater than 1

12) Two devices commonly used to generate light for fiber optic communication system
LED and LCD
LED and TFT
All of the above
LED and ILD

13) While drawing the phasor diagram of a parallel circuit, which one is taken as the reference
None of the above
Voltage
Power
Current

14) A voltmeter gives 120 oscillations per minute when connected to the rotor of an induction motor. When the stator frequency is 50Hz, slip of the motor is
5%
4%
2.5%
2%

15) Steady state stability of a power system is improved by
reducing fault clearing time
single pole switching
using double circuit line
decreasing generator inertia

16) Base modulation is used in TV transmission because
All of the above
Large power O/P and better efficiency
High degree of linearity
Power required is small

17) The most commonly used detector in AM receiver is
Coherent detector
Ratio detector
Discriminator
Envelope detector

18) Which one of the following is a synchronous optical network ?
TELNET
INTERNET
DELNET
SONET

19) The Hall effect voltage in intrinsic silicon
changes sign on application of magnetic field
is positive
is zero
is negative

20) The value of coefficient of coupling is always
greater than 1
none of the above
equal to 1
less than 1

21) An analog computer used for resolving a vector into two mutually perpendicular components has a device called
Register
Resolver
Subroutine
None of these

22) Which one of the following devices is not used for networking ?
Cub
Hub
Switch
Router

23) The residual magnetism of a self-excited dc generator is lost. To build up its emf again
the fieldd winding must be replace
the field winding connection must be reversed
its armature connection must be reversed
field winding should be excited by low voltage DC voltage

24) In an EXCLUSIVE-OR gate, when the O/P is zero, the inputs are
1,0
0,1
1,x
1,1

25) Silicon devices are used for high temperature application compared to germanium because
silicon is more thermally stable
none of the above
silicon can dissipate more power
reverse saturation current is less in silicon

26) Ferranti effect is experienced on long transmission lines when it is
lightly loaded
on full load at upf
on full load at 0.8 pf lag
all of the above

27) Which region of the transistor characteristic is used for amplification
active
cut off
saturation
passive

28) The ASCII code is
7 bit code
9 bit code
5 bit code
11 bit code

29) An automatic iron box is an example of
none of the these
an open loop control system
a multi feedback control system
a single feedback control system

30) A series circuit containing passive elements has the following voltage and current
v = 100 sin (314t + 50 ) and
i = 4 cos (314t + 13 ).
The circuit elements
must be L, C and R
could be either R and C or R, L and C
must be R and L
must be R and C

31) A cache in a computer is
used to hold more date
used to improve the storage capacity
used to increase the speed of execution
none of the above

32) Which one of the following is not related to modems?
DCE
data phone
Telephone
data-set

33) When two capacitors C1 and C2 are connected in series, the equivalent value of capacitance is
C1C2/(C1 + C2)
C1C2
C1 + C2
C1 – C2

34) When the supply frequency is decreased the capacitive reactance
increases
decreases
unpredictable
remains the same

35) Rise time of an under damped system is
Time taken by the response to reach 50 %
time taken by the response to reach 95%
time taken by the response time to rise from 0 to 100%
None of the above

36) Main disadvantage of FM is
Complex circuits
Adjacent channel interferrence
Limited line of sight range
Low operating voltage

37) An instantaneous change in voltage is not possible in
a current source
a capacitor
an inductor
resistor

38) Which one of the following power semiconductors can be turned on and turned off using the gate ?
Power MOSFET
GTO
SCR
Power transistor

39) The roots of the characteristic equation are called
Poles
Eigen vectors
Eigen values
Zeroes

40) Which of the following terms is not associated with a sample and a hold circuit?
Sample mode
Aperture time
Conversion time
Acquisition time

41) The rms value of sine wave is
0
0.5
1
0.707

42) While measuring power in a three phase circuit using two wattmeters, one of the meter reads zero when
pf of the circuit is 1
pf is zero
pf is 0.6
when the pf is 0.5

43) Which of the following is used for serial access storage only?
Core memory
RAM
Maganetic disk
Magnetic tape

44) Transmission lines are transposed to
prevent interference with neighbouring telephone lines
reduce copper loss
reduce skin effect
prevent short-circuit between any two lines

45) The decimal equivalent of binary 10111 is
4
23
16
20

46) The outstanding characteristic of a direct coupled amplifier is its
temperature stability
avoidance of frequency sensitive components
economy
ability to amplify DC and low frequency signals

47) The major application of Zener diode is
Voltage regulation
Rectifier
Amplifier
Chopper

48) For rural electrification in a country like India with complex network it is preferable to use
Air break CB
MOCB
Oil CB
Vacuum CB

49) BJT can be used in the following mode for amplification applications
All of the above
CE
CC
CB

50) KVL states that the algebraic sum of the voltage drop around a closed loop in an electric circuit is
equal to 1
equal to the input voltage
equal to 2
equal to zero

51) A computer can execute only programs written in
High level language
Assembly language
Machine language
None of the above

52) An amplifier can be converted to an oscillator using
positive feedback
null feedback
zero feedback
negative feedback

53) PUSH and POP operations are connected with
PROCESSOR
ALU
MEMORY
STACK

54) In a computer program, the process of executing the same instruction over and over is called
None of these
Circulating
Branching
Looping

55) The form factor is the ratio of
average value to rms value
peak value to average value
peak value to rms value
rms value to average value

56) A CLASS C power amplifier is one in which the operating point is chosen such that the output current
never flows
always flows
zero for less than one half of I/P cycle
zero for more than one half of I/P cycle

57) The full scale input voltage to an ADC is 10V. The resolution required is 5mV. The minimum number of bits required for ADC is
8
12
10
11

58) Star delta starter is used for starting
Synchronous motor
Squirrel Cage Motor with delta connected stator winding
DC Motor
Universal Motor

59) Which amplifier configuration has the lowest output impedance ?
CC
CE
CO
CB

60) When a 3-phase synchronous motor is running at synchronous speed, the damper winding produces
Torque aiding developed torque
Eddy current torque
Damping torque
Zero torque

61) How many layers are available in OSI ?
7
4
6
5

62) The surge impedance of 50 km long underground cable is 50 ohms. For a 25 km length it will be
100
25
50
75

63) The energy stored in the magnetic field is given by
1/2 L²I²
1/2 LI²
1/2 LV²
1/2 L²V²

64) The voltage gain of an emitter follower is always
more than 1
less than 1
1
greater than or equal to 1

65) The insulation of modern EHV line is designed based on
RI
Corona
Switching voltage
Lightning voltage

66) A resistance is connected in series with an inductive coil. The phase difference between the current and applied voltage
decreases with increase in frequency
remains constant
none of the above
increases with increase in supply frequency

67) A 3-phase breaker is rated at 2000 MVA, 33 kV. Its making current will be
49 kA
35 kA
89 kA
70 kA

68) A 3-phase synchronous generator is operating at constant load while the excitation is adjusted to give unity pf current. If the excitation is now increased the pf will become
Unity
Leading
Zero
Lagging

69) The impulse ratio of a rod gap is
between 1.2 and 1.5
between 1.6 and 1.8
1
between 2 and 2.2

70) For a closed loop system to be stable, the poles of the CLTF must lie
none of the above
on the left half of the S plane
on the right half of the S plane
at the origin

71) Which amplifier configuration is used by a push-pull configuration
Class C
Class AB
Class B
Class A

72) www stands for
Wide world web
World wide web
Wide world weight
World wide weight

73) Modulation is a process to vary
Carrier signal by the signal to be transmitted
Signal to be transmitted as well as to vary carrier signal by the signal to be transmitted
none of the these
Signal to be transmitted

74) For a given cross-sectional area of transformer core, stepped cores are used
to reduce the magnetizing current
to provide more mechanical strength to the core
to reduce the core loss
to reduce the conductor material

75) Thyrites are used for protection against
corona
damping
surge current
over current

76) Which one of the following is not a power semiconductor device ?
SCR
GTO
IGBT
CRS

77) While finding the Thevenin equivalent circuit between two terminals, Vth is equal to
Open circuit terminal voltage
emf of the battery nearest to the terminals
Short circuit terminal voltage
Net voltage available in the circuit

78) The most important part of an operational amplifier is
Differential amplifier
Substractor
Adder
Integrator

79) The following protocol is used used for accessing web pages
SMTP
FTP
PTTP
HTTP

80) Input impedance of a transmission line at any distance from the load can be determined using
Gant chart
none of the above
Smith chart
Ben chart

81) Micro-programming is a technique for
programming input and output
programming the control steps of a computer
programming the microprocessors
writing small programs

82) How many state equations are required to represent a system described by a third order differential equation ?
2
4
2
3

83) A + AB is equal to
AB
A
A + B
B

84) Transformer cores are laminated to reduced
Ohmic loss
Eddy current loss
Both eddy current and hysteresis loss
Hysteresis loss

85) The following mark up is used for creating webpages
HTPP
COBOL
PASCAL
HTML

86) A 3-phase synchronous motor is operating at a load angle of 20° and with excitation voltage equal to the applied voltage. The synchronous reactance drop in terms of excitation voltage
38.2%
69.46%
34.73%
32.9%

87) For maximum transfer of power, internal resistance of the source should be
less than load resistance
more than load resistance
Zero
equal to the load resistance

88) The transfer function of a system is given by T(S) = K/[ s³(1+sT) ]. The type and the order of the system are
3 and 2
3 and 4
2 and 3
3 and 3

89) The zero point characteristics for the Potier diagram can be obtained by loading the alternator using
Lamp load
Water load
DC motor
Synchronous motor

90) What is the value of modulation index in AM?
above 100
between 0 and 1
between -1 and 0
above 1

91) The specification for a standard 74 series TTL gate reads propagation delay as 33ns and power dissipation is 1mV. This circuit is
Low speed TTL
Standard Schottky TTL
Low power Schottky TTL
High speed TTL

92) Three identical impedances are connected in delta to a 3-phase supply of 400 Volts. The line current is 34.65 A and the total power taken is 14.4 kW. The resistance of the load in each phase is
10 ohms
16 ohms
12 ohms
20 ohms

93) Donor type impurities
all of the above
have five valence electrons
used to make n-type semiconductors
create excess free electrons

94) Which one of the following is not a method of power generation?
MHD
CHD
Thermal
Hydroelectric

95) The phase shift between the output and input of a CE amplifier configuration is
270°
360°
90°
180°

96) The gain of the amplifier is usually expressed in
Amperes
mho
Decibels
Volts

97) Superposition theorem is applicable only for circuits which are
Linear and Bilateral
Bilateral
Linear
Non-linear

98) Which of the following is not a programming language ?
ALGOL
EIFFEL
ADA
SUSE LINUX

99) Power in a single phase circuit can be measured
using 3 ammeters
using one wattmeter
using 3 volltmeters
using all the above 3 methods

100) The peak overshoot of a second order system is
depends on damping ratio
is zero
is a constant
independent on damping ratio

Please give me the previous year question paper for the KSEB examination as I need it for reference purpose?

[Raman Vij]

The previous year question paper for the KSEB examination is as given below for the Assistant Engineer post:

1. Kirchhoff's laws are valid for
A. linear circuit only. B. passive time invariant circuits.
C. non-linear circuits only. D. both linear and non-linear circuits.*

2. The time constant of an RL circuit is 1 second and its inductor is 8 H, the resistance of the coil
is ..... .
A. 8.* B. 1/8. C. 0.25. D. 1.

3. In active filter which element is absent?
A. Inductor.* B. Capacitor. C. Both of above. D. Resistor.

4. A capacitor of 50 microfarad is connected in series with a resistance of 120 . If above circuit
is connected across 240 V, 50 Hz 1 -  supply. Find the capacitive reactance?
A. 63.7 .* B. 0.015  C. 135.86  D. 1.765 

5. If a resistor and a capacitor are connected to form series R - C circuit across a voltage source.
If frequency of voltage source increases
A. the current increases.* B. the current decreases.
C. the current remain unaltered. D. the current decreases abruptly.

6. A wire 1 m long carries a current of 5 A and is at angle of 30 with B = 1.5 wb/m2
. Magnitude of
force
A. 2 N. B. 2.5 N. C. 3.75 N.* D. 5 N.

7. Between a hollow and solid metal sphere, charge reside
A. On outer surface in hollow and throughout is solid. B. On outer surface in both.*
C. On outer surface in solid and throughout hollow. D. None of above.

8. In case of all flux from the current in coil 1 links with coil 2, the coefficient of coupling will be
A. 2.0. B. 1.0.* C. 0.5. D. Zero.

9. Both the number of turns and the core length of an inductive coil are doubled. Its self-inductance
will be
A. unaffected. B. doubled.* C. halved. D. quadrupled.

10. The permanent magnets are made from which of following materials ?
A. Soft iron. B. Ferromagnetic.* C. Paramagnetic. D. Diamagnetic.

11. The major cause of creeping in an energy meter is
A. over compensation for friction. B. excessive voltage across potential coil.*
C. mechanical vibrations. D. stray magnetic field.

12. In a two watt meter method the reading of W1
= 3 kW and W2
= 2 kW. But W2
reading was
taken after reversing the current soil of the wattmeter. The net power in the circuit is .......
A. 2 kW. B. 1 kW* C. 3 kW. D. none of these