Mock Exam: KPSC MOCK TEST KPSC QP 53 2023 OL

1

The arterial roads of a state connecting up with National Highways of adjacent state, district headquarters, important cities in the state serving as main arteries for traffic to and from districts is called

2

Institutional buildings are under the category of ___________ as per NBC.

3

The space covered by the floor of the property, along with the area covered by its internal and external walls is called

4

Soil material which is derived from rock bedding and has not undergone transportation is called

5

Symons Rain gauge comes under

6

Marble is an example of

7

Yellowish or red stains in timber due to over maturity and insufficient ventilation during storage is due to

8

The mix proportion of M10 concrete is

9

Wrought iron is manufactured from

10

The specific gravity of plastic is

11

Alternate courses of stretchers and headers are laid in

12

The vertical distance between wall plate and top of ridge is called

13

The speed of lift car upto 4 floors is

14

The diameter of under reamed piles is normally

15

Foundation is provided to

16

Carnot cycle consists of the processes

17

Efficiency of the Otto cycle is a function of

18

In a thermodynamic cycle if the energy is released by combustion of fuel party at constant volume and partly at constant pressure is

19

Network done in a reciprocating IC engine is

20

In an IC engine mechanical efficiency is

21

In a vapour compression refrigeration system wet compression causes i. No cylinder head damage ii. Cylinder wear

22

If the wet bulb depression is zero then i. Ambient air is saturated and RH is 100% ii. WBT and DBT are equal

23

By fitting air vessel to the reciprocating pump i. Discharge of the water can be made uniform. ii. Pump can be run at high speed. iii. Work done in overcoming the frictional resistance in the suction and delivery pipes can be reduced.

24

In a centrifugal pump ratio of impeller power to the prime mover power is

25

In a belt transmission when the centrifugal tension is taken into account

26

Instead of natural clay silica grains are coated with sodium silicate in

27

In a mould to trap heavier and lighter impurities flowing towards the casting provide

28

Welded portion should be peened with a hammer i. To remove surface oxides and residual flux present on weld surface. ii. To provide compressive stress on the weld surface. iii. To provide tension on the weld surface.

29

In a lathe for holding and obtaining a hollow piece of work that has been previously drilled or bored

30

To drill a hole in the metals like copper and stainless steel, point angle used in the twist drill is

31

Three 1 ohm resistors are connected to form a triangle. The resistance between any two corners is

32

For the following circuit, the current I is

33

Kirchhoff's current law is applicable to only

34

Minimum number of meshes required to solve the given circuit is

35

In nodal analysis, there are N nodes in the circuit. Number of equations required to solve the network.

36

The magnetic flux density in an air-cored coil is 0.05 Wb/

m^2

. With a cast iron core of relative permeability 400 inserted, the flux density will become

37

According to Faraday's Laws of Electromagnetic induction, an e.m.f. is induced in a conductor whenever

38

Two coupled coils connected in series have an equivalent inductance of 8 mH or 4 mH depending on the interconnection. Then the mutual inductance M between the coils is

39

The rms value of a sine wave is 230 V. Its peak value is

40

An alternating current is given by i = 10 sin 314t. Measuring time from t = 0, the time taken by the current to reach – 10 A for the second time is

41

The voltage applied to a circuit is

200\sqrt{2} \sin(100\pi t)

volts and draws a current of

20\sqrt{2} \cos(100\pi t + \pi/4)

amperes. Taking the voltage as the reference phasor, the phasor representation of the current in amperes is

42

The power factor of a series RLC circuit is

43

In a series RLC circuit, the inductance is changed from L to L/2. For the same resonant frequency, the capacitance should be changed from C to

44

In a series RL circuit,

I_R

is the current through resistor and

I_L

is the current through inductor, then

45

A voltage of 100 ∠ 20º V drives a current of 10 ∠ 80° A through a single phase load. The power consumed by the load is

46

A resistor has a colour-code bands Green Violet Brown Gold. It's nominal value is

47

Which of the following statement is/are true about a PN junction diode ? i. An ideal PN junction diode acts as an open circuit in forward bias and a short circuit in reverse bias. ii. The reverse-biased PN junction diode will have a very narrow depletion layer. iii. When the PN junction diode is reverse-biased, a very small current flows through the diode. iv. There are no free charge carriers in the depletion region.

48

Which of the following statement is/are true about Bipolar junction transistors ? i. The emitter current is always the largest. ii. A transistor is said to be in saturation when it does not conduct current. iii. The leakage current stops when emitter is disconnected from DC supply. iv. The total collector current is the sum of majority and minority charge carriers.

49

In the output characteristics of a common emitter configuration

50

Varistor is used to

51

Which of the following statement is/are true about Bridge rectifier ? i. Entire secondary voltage can be used as the input to the rectifier. ii. If one diode opens, output frequency will be doubled. iii. Transformer used is larger as compared to center-tapped full wave rectifier. iv. Ideal peak output voltage is equal to a center-tapped full wave rectifier.

52

Which of the following statement is/are true about Zener Diode used as a voltage regulator ? i. Breakdown voltage increases with increase in current. ii. If load current changes output voltage remains constant. iii. Minimum value of Zener current must be maintained in order to keep the diode in Breakdown region. iv. The load voltage is zero when it is operating in the breakdown region.

53

Which of the following statement is/are true about Public Address system ? i. Must reduce reverberations. ii. Microphone is a transducer used to convert electrical signal to sound signal. iii. It must increase the acoustic feedback.

54

In the frequency response curve of a RC coupled amplifier

55

In a common emitter amplifier

56

Comparing AM transmission and FM transmission i. AM radio is a line of sight system ii. AM broadcast band has higher frequencies than FM broadcast band iii. FM has noise immunity advantage iv. FM has higher fidelity

57

If

y = A \cos px + B \sin px

(A, B, P are constants), then

\frac{d^2 y}{dx^2}

is

58

An audio signal of 5 kHz frequency is amplitude modulated with a carrier signal of 1.6 MHz frequency. Which of the following statement is true ?

59

All the succeeding stages of a super heterodyne receiver operates on

60

Which of the following is true with respect to antenna ? i. To make it more directional, its size must be reduced. ii. The efficiency of antenna will be 62.5% when antenna resistance is 30% and radiation resistance is 50%. iii. Minimum length of the antenna required to send a signal of frequency 500 kHz is 150 m.

61

Which of the following statements are true ? i. Fading of signals is caused due to obstacles. ii. Handoff is the process of transferring a mobile telephone call from one cell to another without dropping the call. iii. Circle is a universally adopted shape of cell.

62

The storage element within the processor is known as

63

DRAM cell is made up of

64

After compiling the program code, the file that contains the resulting output is referred to as

65

Program should be written as a single continuous block without any break in

66

The number of passes required to sort an array of n elements with bubble sort is

67

This of the following is not a valid type modifier in C.

68

What will be the value of b in following code segment. #include <stdio.h> int main() { int b = printf("Message"); printf("%d", b); return 0; }

69

The data type which does not allowed as a switch expressionin C.

70

The following declaration in C indicates int p : 8;

71

What will be the following code segment ? #include<stdio.h> int main() { int x; for (x = 5; x!=0; x--) printf("%d", x--); return 0; }

72

This of the following is not a valid 2-dimensional array declaration.

73

Predict the output of following code segment. #include<stdio.h> int main() { int array[10] = {1,2,3,4,5}; printf("%d", array[5]); return 0; }

74

In the below code; what will be the value of x ? #include<stdio.h> #include<string.h> int main() { char s1[] = "hello"; char S2[] = "world"; int x = strcmp(s1, s2); printf("%d", x); return 0; }

75

This of the following is/are true about linear search performed in an array of size N. I. Linear search works only in ordered list of elements. II. The worst case; number of comparisons needed is N.

76

What does the string handling function strchr(s1, ch) does ?

77

A body falling from a height of 10 m rebounds from the hard floor. If it loses 20% of energy in the impact, how high will it rebound ?

78

Rain drops are falling with constant velocity near the surface of earth. Choose the correct alternative related to the above statement.

79

Choose the options which have correct statements about Laser in the three columns of table.

80

An electron in a constant electric field

81

9 Ohm and 2 Ohm are the effective resistance when two resistors are connected in series and parallel respectively. The individual resistances are

82

When an electron revolving around the nucleus of an atom

83

When two infinite parallel conductors are held parallel to each other and currents are flowing in the same direction

84

A boy suffered from severe fever and admitted in the hospital. His body temperature is measured to be 100 by a thermometer. But when a drop of water accidently incident on his body, it didn't boil. Choose the correct reason for the above.

85

Which of the following statements are correct related to the number of electrons and holes in a semiconductor ?

86

In telecommunication waves are transmitted through an optical fibre by

87

Evaluate

\int e^x (\sin x + \cos x) dx

88

The product of these two matrices is

89

The transpose of the inverse of the matrix

A

is

90

The value of

\sin^2 \theta + \cos^2 \theta

is

91

If

\tan A = \dots

Then

A + B

is

92

cos 55° + cos 65° has value

93

Find the unit vector in the direction of the sum of the vectors

\vec{a}

and

\vec{b}

94

Which of the following statements are correct about the dot product of two vectors. \n i.

\vec{a} \cdot \vec{b}

is a real number.\n ii. If

\vec{a}

and

\vec{b}

are perpendicular then

\vec{a} \cdot \vec{b} = 0

.\niii. The angle between two non zero vectors is given by

\cos \theta = \frac{\vec{a} \cdot \vec{b}}{|\vec{a}||\vec{b}|}

.

95

Find the area of a parallelogram whose adjacent sides are given by the vectors

\vec{a}

and

\vec{b}

96

Find the derivative of the function

97

If

x = k \sec\theta

,

y = m \tan\theta

find

\frac{dy}{dx}

, k and m are constants

98

Evaluate the limit or integral expression

99

Find the area enclosed between the parabola

y^2 = 4ax

and X axis

100

The solution of the linear differential equation is given by

KPSC Mock Test: Training Officer - ST Development Department

KPSC Mock Test: Training Officer - ST Development Department