NUST Mock Test 9

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NET Mock Test 9

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1 / 193

Category: Chemistry Ch 15 Class 12

What is used in cement manufacture?

Limestone

Starch

Potassium Oxide

Both a and b

2 / 193

Category: Chemistry Ch 15 Class 12

The zone where moisture is removed and clay is broken down into Al203, Si02, Fe203 is

Burning zone

Cooling zone

Drying zone

Decomposition zone

3 / 193

Category: Intelligence Sequences and Series

Find the next number In the following sequence: is, 25, 30, 50, 60, 100 …

200

120

180

300

4 / 193

Category: Intelligence Sequences and Series

Find the missing number in the pattern given below: If 4 x 6 = 1624 3 x 4 =912 then 5 x 6 = ?

2530

30

5060

2024

5 / 193

Category: Intelligence Sequences and Series

Find the next two numbers in the following sequence: 1, 6, 16, 31, 51 …

71, 91

61, 86

46, 21

76, 106

6 / 193

Category: Math Ch 2 Class 12

a

b

c

d

7 / 193

Category: Math Ch 2 Class 12

a

b

c

d

8 / 193

Category: Math Ch 2 Class 12

a

b

c

d

9 / 193

Category: Math Ch 2 Class 12

a

b

c

d

10 / 193

Category: Math Ch 2 Class 12

a

b

c

d

11 / 193

Category: Math Ch 2 Class 12

a

b

c

d

12 / 193

Category: Physics Ch 16 Class 12

Reactance of an Inductor Is given by:

wL

1/wL

wC

1/wC

13 / 193

Category: Physics Ch 16 Class 12

P = Irms Vrms Is applicable for

AC only

DC only

Both a and b

None of these

14 / 193

Category: Physics Ch 16 Class 12

Impedance of a circuit Is calculated as:

Vrms/Irms

Irms/Vrms

IrmsVrms

Vrms/R

15 / 193

Category: Chemistry Ch 2 Class 12

Group 1A and 11A are known as: ) s block elements d) P block elements

Alkali

Alkaline earth

) s block elements

P block elements

16 / 193

Category: Physics Ch 11 Class 11

If speed of a fan in a room is Increased then the temperature of air in the room will

Decrease

Increase

Remain Same

Either a or b

17 / 193

Category: Physics Ch 7 Class 11

If T is to be reduced to T/3 then length of pendulum should be: a) L/9 b) In c) l./3 d) L/4

L/9

L/2

L/3

L/4

18 / 193

Category: Physics Ch 7 Class 11

Which of the following changes must when a wave changes its medium?

Frequency

Amplitude

Speed

) None of these

19 / 193

Category: Physics Ch 7 Class 11

If length of a pendulum is 4 times g,.its time period will be:

4π

2π

π

π/2

20 / 193

Category: Physics Ch 7 Class 11

A pendulum is placed at Lahore, Murree, and K2. At which location will the frequency of Pendulum be maximum?

Lahore

K2

Same frequency at all locations

Murree

21 / 193

Category: Physics Ch 7 Class 11

If the value of g is made g/16, what will be the effect on time period of pendulum?

Doubled

Four times

Halved

One fourth

22 / 193

Category: Math Ch 12

The circle passing through the thee vertices of a triangle is called:

Circum circle

in-circle

ex-centre

escribed circle

23 / 193

Category: Math Ch 12

a

b

c

d

24 / 193

Category: Math Ch 12

A triangle which is not right is called:

Oblique triangle

Isosceles triangle

Scalene triangle

Right isosceles

25 / 193

Category: Math Ch 12

When we look an object below the horizontal ray, the angle formed is called angle of:

Elevation

depression

incidence

reflects

26 / 193

Category: Math Ch 12

When we look an object above the horizontal ray, the angle formed is called angle of:

Elevation

depression

incidence

reflects

27 / 193

Category: Chemistry Ch 3 Class 11

The Vander Waal’s constant ‘If of a gas Is four times the:

Actual volume

Volume of vessel

free volume

Volume

28 / 193

Category: Chemistry Ch 6 Class 11

In water molecules, oxygen atom is hybridized as

sp2

sp3

sp4

sp3d2

29 / 193

Category: Chemistry Ch 6 Class 11

Hybridization in BeCl2 Is a

sp3 hybridization

sp2 hybridization

sp hybridization

None of these

30 / 193

Category: Math Ch 10

a

b

c

d

31 / 193

Category: Math

The symbol which is used to denote negation of a proposition is

~

→

∧

∨

32 / 193

Category: Chemistry Ch 9 Class 11

12% W/W alcohol In water solution contains water:

100 cm3

12 cm3

88 cm3

112 cm3

33 / 193

Category: Chemistry Ch 9 Class 11

For colligative properties, the solution should be:

Electrolyte

Saturated

Diluted

Concentrated

34 / 193

Category: Math Ch 4 Class 12

The point where the altitudes of a triangle intersect is called_________ of the triangle.

Centroid

centre

orthocenter

circumference

35 / 193

Category: Math Ch 4 Class 12

a

b

c

d

36 / 193

Category: Math Ch 4 Class 12

If all the sides of four sided polygon are equal but the four angles are not equal to ??° each
then it is a

Kite

rhombus

||gram

trapezoid

37 / 193

Category: Math Ch 4 Class 12

The slope-intercept form of the equation of the straight line is

? = ?? + ?

? − ?1 = ?(? − ?1)

?/?+?/?= 1

????? + ????? = p

38 / 193

Category: Math Ch 4 Class 12

a

b

c

d

39 / 193

Category: Math Ch 4 Class 12

The straight line which passes through one vertex and though the mid-point of the opposite
side is called:

Median

altitude

perpendicular bisector

normal

40 / 193

Category: Physics Ch 13 Class 12

Siemen is the SI unit of:

Conductivity

Resistivity

Conductance

None of these

41 / 193

Category: Physics Ch 13 Class 12

n which of the following more heat energy is produced?

A bulb of resistance 5m ohm operated for 1 min by suppling a current of 120 A

An Iron producing heat energy of 2 kJ

A tube working for 2 mins with a supply of 50A current and offering a resistance of 0.02 ohms

Both a and c produce same energy

42 / 193

Category: Physics Ch 13 Class 12

Temperature co-efficient of resistance is:

Fractional change in resistance

Fractional change In resistivity

Fractional change in resistance per kelvin change in temperature

Fractional change in resistance per degree change in temperature

43 / 193

Category: Math Ch 5

A mixed form of fraction is :

An integer+ improper fraction

a polynomial+improper fraction

a polynomial+proper fraction

a polynomial+rational fraction

44 / 193

Category: Math Ch 5

A fraction ?(?)/?(?), ?(?) ≠ ? is called proper fraction if :

Degree of ?(?) < Degree of ?(?)

Degree of ?(?) = Degree of ?(?)

Degree of ?(?) > Degree of ?(?)

Degree of ?(?) ≥ Degree of ?(?)

45 / 193

Category: Physics Ch 15 Class 12

Which of the following is not major application of electromagnetic induction

T.V

Radio

Transformer

Telephone

46 / 193

Category: Physics Ch 15 Class 12

potential difference in charge between two points in a circuit is known as?

Emf

Electric difference

Intensity

Volt

47 / 193

Category: Physics Ch 15 Class 12

Resistance opposes current, inductor opposes

Current

Change in current

emf of a battery

All

48 / 193

Category: Math Ch 14

a

b

c

d

49 / 193

Category: Math Ch 14

a

b

c

d

50 / 193

Category: Chemistry Ch 6 Class 12

Higher Transition elements are:

d-type

f-type

Both a and b

None of these

51 / 193

Category: Math Ch 6

A sequence is also known as:

Real sequence

Progression

Arrangement

Complex sequence

52 / 193

Category: Math Ch 6

An arrangement of numbers according to some definite rule is called:

Sequence

Combination

Series

Permutation

53 / 193

Category: Math Ch 6

a

b

c

d

54 / 193

Category: Physics Ch 8 Class 11

In which of the following medium will the speed of sound be maximum?

Glass

Water

Copper

Wood

55 / 193

Category: Chemistry Ch 5 Class 12

The halogens are known as:

Salt formers

Rare earth elements

Alkali metals

Noble gases

56 / 193

Category: Chemistry Ch 5 Class 12

is used in electric light bulbs, in fluorescent tubes, in radio tubes and Geiger counters

Radon

Neon

Argon

Both a and b

57 / 193

Category: Physics Ch 1 Class 11

The SI unit of mass is?

Miligram

Gram

Kilogram

Ton

58 / 193

Category: Physics Ch 1 Class 11

Radian Is a:

Base unit

Derived unit

Supplementary unit

None

59 / 193

Category: Physics Ch 1 Class 11

Zeros are always considered significant when they are

In between non-zero digits

On left of non-zero digits

On right of non-zero digits

All of the above

60 / 193

Category: Physics Ch 1 Class 11

1 femto

a) 10-15

b) 10-9

c) 10-6

d) None

a

b

c

d

61 / 193

Category: Physics Ch 1 Class 11

Unit of light year Is:

Seconds

Meter

Meter/Second

Volts

62 / 193

Category: Physics Ch 1 Class 11

1 Inch = —- cm

2.50

2.52

2.54

2.56

63 / 193

Category: Math Ch 6 Class 12

a

b

c

d

64 / 193

Category: Math Ch 6 Class 12

a

b

c

d

65 / 193

Category: Math Ch 6 Class 12

Which one is related to circle

? = 1

? > 1

? < 1

? = 0

66 / 193

Category: Math Ch 6 Class 12

The ratio of the distance of a point from the focus to distance from the directrix is denoted by

?

e

67 / 193

Category: Math Ch 7 Class 12

a

b

c

d

68 / 193

Category: Math Ch 7 Class 12

If ? be the set of real numbers, then the Cartesian plane is defined as

?2 = {(?2, ?2): ?, ? ∈ ?}

R2 = {(?, ?): ?, ? ∈ ?}

?2 = {(?, ?): ?, ? ∈ ?, ? = −?}

?2 = {(?, ?): ?, ? ∈ ?, ? = ?}

69 / 193

Category: Math Ch 7 Class 12

a

b

c

d

70 / 193

Category: Math Ch 7 Class 12

Cross product or vector product is defined

In plane only

in space only

everywhere

in vector field

71 / 193

Category: Math Ch 7 Class 12

a

b

c

d

72 / 193

Category: Math Ch 7 Class 12

a

b

c

d

73 / 193

Category: Math Ch 7 Class 12

a

b

c

d

74 / 193

Category: Math Ch 7 Class 12

If any two vectors of scalar triple product are equal, then its value is equal to

1

0

-1

2

75 / 193

Category: Math Ch 7 Class 12

a

b

c

d

76 / 193

Category: Math Ch 7 Class 12

The vector whose magnitude is 1 is called

Null vector

unit vector

free vector

scalar

77 / 193

Category: Chemistry Ch 16 Class 12

Which of the following is a water cleaning halogen?

CI

Br

F

I

78 / 193

Category: Physics Ch 19 Class 12

Earth is a/an frame of reference

Inertial

Non-inertial

Both

None

79 / 193

Category: English Reading Comprehension

Diana Prince of Wales, became famous when she decided to marry Prince Charles. She became the most photographed, Photographed person in the world. Everywhere she went, there were photographers taking pictures of her and people were very interested in her clothes, where she went on holiday and who she Was v They were also interested in the problems between her and her husband. When they iv remained very popular. In addition to her image as a ‘star’ c , Princess Diana used her influence toill and dedicated time to helping them and drawing public attention to their problems. She used to visit homeless people regularly and did a lot of work for the National AIDS Trust; she visited people suffering from AIDS. It is implied in the passage that before her marriage to Prince Charles, Diana was •

a) Widowed by another Prince of Wales

b) An unknown figure to public

c) Followed by an army of photographers

d) Was one of the victims of the epidemic AIDS

80 / 193

Category: English Reading Comprehension

When school opened in Texas this fall, some favorites were missing from the cafeteria menus. Soda; and ghouls op-when rand`, bars had been banned for grade schoolers, chips and cookies were mini•size. And that perennial favorite, the French fry, was given just one more year before it too will be banned. Howls of protest could be heard everywhere. Principals complained about being forced to act as “nutrition police.” Parents and kids traded schoolyard rumors about twinkles being confiscated from lunch boxes. Nearly everyone, addicted to the revenues that vending machines bring in, yelled that there wouldn’t be enough money for activities like band camp and choir trips. Angry e-mails poured in to the woman who had imposed the new rules-Texas agriculture commissioner Susan Combs. It is stated in the passage that both the students and the principals of the schools in Texas

a) Have the most qualified teaching staff

b) Are to commute between the campus and downtown

c) Intend to devise new methods of dieting

d) Seem to be displeased with the current food policy

81 / 193

Category: Math Ch 7

16. Four persons wants to sit in a circular sofa, the total ways are:

24

6

4

None of thes

82 / 193

Category: Math Ch 7

a

b

c

d

83 / 193

Category: Math Ch 3 Class 12

a

b

c

d

84 / 193

Category: Math Ch 3 Class 12

a

b

c

d

85 / 193

Category: Math Ch 3 Class 12

To determine the area under the curve by the use of integration , the idea was given by

Newton

Archimedes

Leibnitz

Taylor

86 / 193

Category: Math Ch 3 Class 12

a

b

c

d

87 / 193

Category: Math Ch 3 Class 12

a

b

c

d

88 / 193

Category: Math Ch 3 Class 12

a

b

c

d

89 / 193

Category: Math Ch 3 Class 12

a

b

c

d

90 / 193

Category: Math Ch 3 Class 12

a

b

c

d

91 / 193

Category: Physics Ch 17 Class 12

If stress is doubled, then volume becomes

Double

Half

Four times

None of these

92 / 193

Category: Physics Ch 2 Class 11

What is the angle made by the vector -i-5j with x-axis?

tan-1 (1/5)

90 + tan-1 (1/5)

180 + tan-1 (1/5)

270 – tan-1 (1/5)

93 / 193

Category: Physics Ch 2 Class 11

Rain is vertically downwards with the velocity of 30m/s , a wind blows from north to south direction with 10m/s then at what angle should the umbrella of the person be held and in which

Tan^-1 (1/3) vertical towards north

Tan^-1 (1/3) vertical towards south

Co^-1 (1/3) vertical towards north

Cos^-1 (1/3) vertical towards south

94 / 193

Category: Physics Ch 2 Class 11

If the dot product of vectors Is equal to product of their magnitudes, the angle between them

90

0

180

270

95 / 193

Category: Physics Ch 4 Class 11

A body of mass m moving with velocity v has a kinetic energy K. If its velocity is increased by 25%, what will be the work done in terms of K.E?

0.25 K

Zero

2.5 K

0.56 K

96 / 193

Category: Physics Ch 4 Class 11

Which of the following is a conservative field?

Electrical

Resistance

Friction

Magnetic

97 / 193

Category: Physics Ch 4 Class 11

Two bodies X of mass 4kg and Y of mass 6 kg have same linear momentum. If the kinetic energy of Y is 48 J then kinetic energy of body X is:

48 J

64 J

72 J

96 J

98 / 193

Category: Physics Ch 4 Class 11

Which of the following field is dependent on the path?

Gravitational

Conservative

Non Conservative

None

99 / 193

Category: Math Ch 4

The complex cube roots of unity are………………. each other.

Multiplicative inverse

reciprocal

square

None of these

100 / 193

Category: Math Ch 4

The complex fourth roots of unity are ……. of each other.

Additive inverse

equal to

square of

None of these

101 / 193

Category: Math Ch 4

Product of cube roots of -1 is:

0

1

-1

None

102 / 193

Category: Math Ch 4

5. The equation in which variable occurs in exponent , called:

Exponential function

Quadratic equation

Reciprocal equation

Exponential equation

103 / 193

Category: Chemistry Ch 4 Class 11

Which statement about liquids is not correct?

Can diffuse

Have definite volume

Molecules have negligible K.E

All

104 / 193

Category: Math Ch 13

a

b

c

d

105 / 193

Category: Math Ch 13

a

b

c

d

106 / 193

Category: Intelligence Number Reasoning

a

b

c

d

107 / 193

Category: Physics Ch 3 Class 11

Which of the following changes, when particle Is moving with uniform velocity?

Speed

Velocity

Acceleration

Position Vector

108 / 193

Category: Physics Ch 3 Class 11

A body Is dropped from a height 175m, how much time will it take to reach the ground?

3.5 sec

5.97 sec

4.68 sec

1 sec

109 / 193

Category: Physics Ch 3 Class 11

In elastic collision

KE is conserved

Momentum is conserved

Both a and b

None of these

110 / 193

Category: Physics Ch 3 Class 11

Dimensions of linear Momentum are:

MLT^-1

ML^2T^2

M^2LT^1

MLT^-2

111 / 193

Category: Physics Ch 3 Class 11

The expression dp/dt represents

Impulse

Time

Angular momentum

Force

112 / 193

Category: Physics Ch 3 Class 11

Product of Force and Time Is

Impulse

Momentum

Force

Inertia

113 / 193

Category: Physics Ch 9 Class 11

The branch of Physics in which we study the properties of light and its applications on optical instruments is called?

Physical Optics

Quantum optics

Light optics

None of these

114 / 193

Category: Chemistry Ch 2 Class 11

If during crystallization more solute could not be dissolved in the solution, the solution is:

Saturated solution

Dilute solution

Concentrated solution

None of these

115 / 193

Category: Chemistry Ch 14 Class 12

Adipic acid and Hexamethylene dlamine combine to form?

Nylon-6,6

Epoxy Resin

Polystyrene

Polyvinyl chloride

116 / 193

Category: Chemistry Ch 14 Class 12

Which of the following is not a part of the human diet?

Glucose

Sucrose

Fructose

Cellulose

117 / 193

Category: Physics Ch 14 Class 12

Which of the following is incorrect?

F ∝ l

F ∝ sine

F ∝ L

F ∝ 1/B

118 / 193

Category: Physics Ch 14 Class 12

If current passing through a solenoid is increased, which of the following must increase:

Length of solenoid

Number of turns

Magnetic field

All of these

119 / 193

Category: Physics Ch 14 Class 12

ECG records

Voltage from the heart

Stress

Heartbeat

None of these

120 / 193

Category: Physics Ch 14 Class 12

When the ohmmeter measures the infinite resistance, its pointer lies at

Centre of the scale

Left end of the scale

Right end of the scale

None of these

121 / 193

Category: Chemistry Ch 13 Class 12

Which one of these is a soluble carbohydrate:

Fructose

Starch

Cellulose

Amylase

122 / 193

Category: Chemistry Ch 13 Class 12

Which one is the carbonyl protecting group?

Carboxylic acid

Ester

Alcohol

Amino Derivatives

123 / 193

Category: Physics Ch 6 Class 11

If the radii of two droplets are in the ratio 2:3, what will be the ratio of their Terminal velocities?

2 : 3

4 : 6

4 : 9

2 : 6

124 / 193

Category: Chemistry Ch 10 Class 11

Two half cells of a galvanic cell are connected with a salt bridge, the electrons flow from:

Anode to cathode through external circuit

Cathode to anode through external circuit

Anode to cathode through salt bridge

Cathode to anode through salt bridge

125 / 193

Category: Math Ch 8

a

b

c

d

126 / 193

Category: Math Ch 8

a

b

c

d

127 / 193

Category: Chemistry Ch 8 Class 11

A solution having pH = 0 is

Strongly basic

Weakly basic

Neutral

Strongly acidic

128 / 193

Category: Math Ch 5 Class 12

The graph of a linear equation of the form ?? + ?? = ? is a line which divides the whole
plane into ______ disjoints parts.

Two

four

more than four

infinitely many

129 / 193

Category: Math Ch 5 Class 12

(0,0) is the solution of the inequality

7? + 2? > 0

2? − ? > 0

? + ? ≥ 0

3? + 5? < 0

130 / 193

Category: Math Ch 5 Class 12

The feasible solution which maximizes or minimizes the objective function is called

Exact solution

optimal solution

final solution

objective function

131 / 193

Category: Math Ch 5 Class 12

The point where two boundary lines of a shaded region intersect is called _____ point.

Boundary

corner

stationary

feasible

132 / 193

Category: Math Ch 5 Class 12

The symbols used for inequality are

1

2

3

4

133 / 193

Category: Math Ch 5 Class 12

The feasible solution which maximizes or minimizes the objective function is called

Exact solution

optimal solution

final solution

objective function

134 / 193

Category: Math Ch 3

54. Transpose of a row matrix is:

Diagonal matrix

zero matrix

column matrix

scalar matrix

135 / 193

Category: Math Ch 3

Which of the property does not hold matrix multiplication?

Associative

Commutative

Closure

Inverse

136 / 193

Category: Math Ch 3

The horizontal lines of numbers in a matrix are called:

Columns

Rows

Column matrix

Row matrix

137 / 193

Category: Math Ch 3

The main diagonal elements of a skew hermitian matrix must be:

1

0

any non-zero number

any complex number

138 / 193

Category: Math Ch 3

13. For a square matrix ? = [???]if all ??? = ?, ? ≠ ? and at least ??? ≠ ?, ? = ? then A is called:

Diagonal matrix

Scalar Matrix

None

Null matrix

139 / 193

Category: Math Ch 3

Any matrix A is called singular if:

|?| = 0

|?| ≠ 0

? ^? = ?

??^−1 = ?

140 / 193

Category: Physics Ch 20 Class 12

The ionization energy of hydrogen is:

13.6 ev

13.61 J

14 J

13.6 meV

141 / 193

Category: Physics Ch 20 Class 12

If an electron jumps from 68′ orbit to 7 orbit, the increase in radius will be:

90%

25%

33%

17%

142 / 193

Category: Physics

Forces In nature always occur in

Triplet

Quadrupled

Isolation

Pair

143 / 193

Category: Physics

In modern day electrical arrangements, which of the following is connected in series with the others?

Fan

Bulb

Tube Lights

None of these

144 / 193

Category: Physics Ch 18 Class 12

The width of depletion region Increases due to:

Transistor

Minority charge carriers

Majority charge carriers

None of these

145 / 193

Category: English Grammar

If our friends are not able to take us in their car, we must make airport- arrangements to go to the

Alternative

Another

Alternate

Possible

146 / 193

Category: English Grammar

in a little-publicized deal, Pepsi, Cola has– the entire soft drink market In Afghanistan

Occupied

Conquered

Swallowed

Captured

147 / 193

Category: Intelligence Odd One Out

Pick the odd one out

Mongoose

Tortoise

Snake

Crocodile

148 / 193

Category: Intelligence Odd One Out

Choose the odd one out

Magazine

Dictionary

Novel

Thesis

149 / 193

Category: Intelligence Odd One Out

Pick the odd one out

Maize

Bajra

Wheat

Rice

150 / 193

Category: Intelligence Odd One Out

Which of the following is the odd one out?

Microfilm

Microscope

Microbe

Microchip

151 / 193

Category: Chemistry Ch 7 Class 11

Value of heat capacity of water is

4.51 J/g

4.18 J/g

4.921J/g

4.21J/g

152 / 193

Category: Chemistry Ch 11 Class 12

IUPAC name of wood spirit is

Ethanol

Methanol

Propanol

None of these

153 / 193

Category: Chemistry Ch 8 Class 12

Acetylene with Cl2 gives:

1, 2-dicholropropane

1, 1, 2, 2-tetrachloroethane

Ethane dichloride

1, 1, 2, 2-tetrachloromethene

154 / 193

Category: Intelligence Direction Sense

A man went 15 km to the west of Ids house:, then ttuntal loft and walked 20 km. Ile Well turned east and walked 25 km and finally turning loft covered 20 kin. ‘low far was he Iro► his house? a) 5 km h) 10 km c) 40 km (I) 80 km el II north Is northwest, west Is southwest then what Is south?b) N

South East

North-east

South-west

None of these

155 / 193

Category: English Spellings Correction

Choice Correct Spelling

Commemorate

Commimorate

Commamorate

Commomorate

156 / 193

Category: English Spellings Correction

Choice Correct Spelling

Mathematics

Mathimatics

Mathemetics

Methematics

157 / 193

Category: English Spellings Correction

Choice Correct Spelling

Tongue

Tongae

Tungue

Tangue

158 / 193

Category: English Spellings Correction

Choice Correct Spelling

Alligiance

Alleagiance

Allegiance

Allegance

159 / 193

Category: English Analogies

) Range : Mountain

Point : Line

Bouquet : Flower

School : Class

String : Bead

160 / 193

Category: English Analogies

Spring : Summer

Adolescence : Youth

Fight : Battle

Stagger : Walk

Read : Learn

161 / 193

Category: English Analogies

Fox : Cunning a)

Cat : Playful

) Horse : Runner

Vixen : Cute

Ant : Industrious

162 / 193

Category: English Analogies

Paper Ream a)

Eggs : Dozen

Books : Pile

Twigs Bush

Food: Packet

163 / 193

Category: Physics Ch 10 Class 11

If placed in contact, the focal length of the combination of two convex lenses of equal focal lengths f,
will be

zero

f/2

f

2f

164 / 193

Category: Physics Ch 10 Class 11

A lens which converges a beam of parallel rays to a point is called

Diverging (or concave) lens

Converging (or convex) lens

Plano concave lens

Plano convex lens

165 / 193

Category: Chemistry Ch 9 Class 12

How many Dewar Structure of Benzene are present?

2

3

4

Infinite

166 / 193

Category: English – Synonyms and Antonyms

Choose the word closest In meaning to “Knotty”

Simple

Throw

Tricky

Regular

167 / 193

Category: English – Synonyms and Antonyms

the word closest in meaning to “Mediatio”

Annoyance

Irritating

Intercession

Aggregate

168 / 193

Category: English – Synonyms and Antonyms

Choose the word closest In meaning to “Soggy”

parched

Dull

Sodden

Desiccated

169 / 193

Category: English – Synonyms and Antonyms

Choose the word closest in meaning to “Destitute”

Needy

Institute

Indebt

Solvent

170 / 193

Category: English – Synonyms and Antonyms

Choose the word closest in meaning to “Hierarchical”

Bureaucracy

Stratified

Origin

Grain

171 / 193

Category: English – Synonyms and Antonyms

Choose the word closest In meaning to “Mon Amin

Momentary

My Friend

Fresh Air

Coming Day

172 / 193

Category: English – Synonyms and Antonyms

Choose the word closest In meaning to “Negligible”

Seize

Momentous

Hefty

Trivial

173 / 193

Category: English – Synonyms and Antonyms

Choose the word closest in meaning to “Axiom”

Paradox

Absurdity

Foolish

Truism

174 / 193

Category: Physics Ch 21 Class 12

The half-life of Iodine Is

8 days

8 hours

15 days

) 15 hours

175 / 193

Category: Chemistry Ch 1 Class 12

Which of following pair has highest conductivity?

Gold, Aluminium

Gold, Tungsten

Silver, Copper

Carbon, Gold

176 / 193

Category: Physics Ch 5 Class 11

A body moving with an angular velocity of 1 rev/sec has a frequency of:

0.5 Hz

2 Hz

1 Hz

None of these

177 / 193

Category: Physics Ch 5 Class 11

1 degree Is equal to radians

180

3.14

0.01745

45

178 / 193

Category: Physics Ch 5 Class 11

Moment of inertia in angular motion plays the same role as

Mass in linear motion

Acceleration in linear motion

Rest mass

None of these

179 / 193

Category: Physics Ch 5 Class 11

If the actual weight of a person standing in an elevator is 75N, and the apparent weight in the accelerated elevator is 105N, find the acceleration and direction of elevator motion. (Use g 10 m/s2)

4 m/s2 downwards

4 m/s2 upwards

6 m/s2 downwards

6 m/s2 upwards

180 / 193

Category: Chemistry Ch 5 Class 11

d subshell has

3 orbitals

5 orbitals

7 orbitals

12 orbitals

181 / 193

Category: Math Ch 9

3 radian is:

171.888°

120°

300°

270°

182 / 193

Category: Math Ch 9

The angle subtended at the center of a circle by an arc whose length is equal to the radius of
the circle is called:

1 Degree

1’

1 Radian

1’’

183 / 193

Category: Math Ch 9

The system of angular measurement in which the angle is measured in radian is called:

Sexagesimal System

Circular System

English System

Gradient System

184 / 193

Category: Math Ch 9

If the rotation of the angle is counter clock wise, then angle is:

Negative

Positive

Non-Negative

None of these

185 / 193

Category: Math Ch 9

One rotation in anti-clock wise direction is equal to:

180°

270°

360°

90°

186 / 193

Category: Chemistry Ch 4 Class 12

Which of the following has allotropic forms:

Oxygen

Sulphur

Both

None of these

187 / 193

Category: Physics Ch 12 Class 12

If the angle b/w electric field and vector area A is rr/3 then electric flux will be?

0.866 EA

0.5 EA

0.707 EA

EA/3

188 / 193

Category: Physics Ch 12 Class 12

If the electric field is E = x/y then y is?

Positive test charge

Negative charge

Force

None of these

189 / 193

Category: Physics Ch 12 Class 12

Unit of electric field is:

N/C

Weber/sec

Volt/C

Joule/sec

190 / 193

Category: Physics Ch 12 Class 12

If two charged conductors are joined by wire, then which of following will happen?

Current will start flowing between them

Current will flow from higher to lower potential

After some time, both will be at same potential

All of them

191 / 193

Category: Intelligence Coding — Decoding

If RTTHHX encodes for Purify, then code for Blanch will be:

DKDSHG

AOCGTY

DKCMEG

EMGCKD

192 / 193

Category: Chemistry

Which one of the following is used as an anesthetic?

Acetone

Halothane

Methyl alcohol

Ethyl alcohol

193 / 193

Category: Chemistry Ch 3 Class 12

Which element among the following forms a protective oxide coating on exposure to air?

Nitrogen

Aluminium

Boron

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