CSIT Entrance 2074

Mathematics
1. p/q ∈ R is defined if
p ≠ 0, q = 0
p = 0, q = 0
p ≠ 0, q ≠ 0
p = 0, q ≠ 0
2. [a,b] =
{x: ≤ x b}
{x : a < x < b}
{ x : a < x ≤ b}
{x : a ≤ x ≤ b}
3. If f R⟶R defined by f(x) = then f(-3) is
undefined
4. If |x| = 1 then x is
{1}
{-1}
{-1,1}
{-1,-1}
5. If log2(x - 7) = 1 then x is
unknown
8
6
9
6. The value of sin(cos-1 4/5) is
4/5
3/5
5/4
5/3
7. If tan2x = 3 then x is
nπ + π/3
nπ - π/3
nπ ± π/3
5/3
8. If k + 2, 4k - 6, 3k - 2 and n are in AP then K is
-6
0
3
-3
(k+2)+(3k−2)=2(4k−6)
⇒4k=8k−12
⇒4k−8k=−12
⇒−4k=−12
⇒4k=12
⇒k=12/4 =3
Hence k=3.
9. Sum of infinity of 1 - 1/2 + 1/4 - 1/8 is
0
2/3
1/3
1
You find this with the following formula: r = t2/t1 ⇒ -(1/2) / 1 ⇒ -1/2
⇒s∞ = a/1-r
⇒s∞ = 1/ 1 - (-1/2)
⇒s∞ = 2/3
10. If A = and B = ± then AB is
11. Value of is
10
1
0
-1
12. Matrix is
Diagonal
Symmetric
Skew Symmetric
unit
13. [2(cos15 + isin15)]6 =
64i
64
0
-64i
14. (1 + w + w2)3 + ( 1 + w - w2)3 =
16
16w
-16
16w2
15. Quadratic equation whose roots are -3 and n is
x2 + x - 6 = 9
x2 + x + 6
x2 - x - 6 = 0
x2 - x + 6 = 0
16. The line kx + 3y + 5 = 0 and 5x - 2y - 6 = 0 are perpendicular to each other for k =
-6/5
-6/5
3/5
-3/5
17. The lines represented by 5x2 + 3xy + ky2 = 0 are perpendicular to each other for k =
5
3
0
-5
18. The equation of tangent to circle x2 + y 2 = 9 at (1,1) is
x + y = 9
x - y = 9
2x + 2y = 9
-x - y = 9
19. =
2
3
5/7
1/2
20.
a2/2
a2
2a2
4a2
21. If x = t + sint, y = 1 - cost then is
tant
tan(t/2)
-tant
-tan(t/2)
22. Derivative of cosx w.r.t sinx is
-tanx
tanx
cotx
-cotx
23. The point of inflection of y = x3 - 12x2 - 0 is
12
-12
4
0
24.
a + x + c
-a + x + c
tanx + c
tanx + c
25.
π / 4
π / 2
0
tanx + c
English
26. The word "commemorate" has the stress on __________ syllable
First
Second
Third
Fourth
27. The word "go" has same vowel sound as the word _______
nor
four
sew
for
28. I hope that a school ______ for college children.
Opens
is opened
has to be opened
be opened
29 . One who is fond of fighting is _______
bellicose
bigot
pacifist
fatalist
30. Select right synonym the word "analogus"
obvious
clear
equivocal
expressed
31. Give opposite meaning of "ominous"
rash
auspicious
folly
fictitious
32. He died ______ cancer but she died _____ the loss of blood.
of, from
from,of
of,at
on, at
33. Whom did you give it _______ ?
at
for
from
to
34. The dog sprang _______ a car
upon
on
at
from
35. Insert missing vowel in these words: d_sease, d_ecease, suit_vs
e-i-o
i-e-o
o-i-e
e-e-e
36. Choose correct word from given option. Rice and curry _______ my favorite dish
are
has
is
am
37. There is a snag in it somewhere,
flow
insect
profit
garland
38. Custom of having many wives is called
bigamy
polygamy
monogamy
Matrimony
39. Choose the right word: Monkeys _______
growl
gibber
yelp
howl
40. CHoose the right grammatical category of the underlined phrase.
Ram handed a book to his sister.
Complement
direct object
adjunct
indirect object
41. The car needs _____ hood repaired
Its
It's
itself
there
42. These are two photographers are ______ same.
an
a
the
nothing
43. The girls is versatile, means
bad
gifted
chumey
unluckey
44. The word "aggresion" takes prefix
non
un
in
il
45. Fear of fire is called
sitophobia
pyrophobia
trihophobia
monomania
46. Which of the following is noun?
real
readable
reality
none
47. We waited at the bus stop ______ the bus came.
fill
until
while
unless
48. One who travels from place to place
itinerant
mendicant
tramp
tourist
49. You're coming to the party ______ ?
aren't you
can't you
won't you
isn't you
50. Are you my friend or enemy? has a ______ tone
rising and rising
rising and falling
rising
falling and falling
Physics
51. Order of magnitude of radius of an atom is
10-7m
10-10m
10-12m
10-15m
52. A projectile goes farthest away from Earth, when the angle of projection is
0°
45°
90°
120°
53. A simple pendulum where set into vibration comes to neat after sometimes because of
friction of air
tension on thread
gravity
mass
54. Powder cling to skin because of
compression
cohesion
adhesion
capillarity
55. Viscosity is inherent property of liquid and gases and is more closely related to
inertia
shearing sharing
transfer of momentum
surface tension
56. If a 200m bridge of steel has length from, temperature varies from 243K us 313K, The change of length of bridge for above seasonal variation in temperature (αsteel = 11 × 10-6)
15.4 cm
15.9 cm
15.8 cm
10 cm
57. Internal Energy of perfect gas does not change during
adiabatic process
isothermal process
isobaric process
Isochoric process
58. Efficiency of steam engine is of order of
10%
20%
60%
100%
59. A gas maximum works when it expands
isothermally
isobarically
adiabatically
isochorically
60. When two gases waves overlap the result is larger disturbance means
interference is constructive
Interference is destructive
Interference depends on type of water
All
61. While standing still, an observer measures frequency of tuning fork to be 524 Hz. What frequency does he measure as he approaches the form at Sm/s ? (speed of sound in air = 340 m/s)
500 Hz
420 Hz
520 Hz
532 Hz
62. In longitudinal wave the displacement of the particles of medium is
parallel to wave velocity
anti-parallel to wave velocity
perpendicular to wave velocity
a or b
63. The Illuminance at distance of 2 m from a 100 candle lamp is
10 lux
15 lux
25 lux
100 lux
64. When light beam is incident on a prism, it causes
lateral shift
dispersion only
deviation only
dispersion and deviation
65. If critical angle for a material placed in air is 30° the refractive index will be
2
0.5
1.5
2.5
66. A body has 1c of negative charge. How many excess electron it has as compared to its neutral state?
6.25 x 1018
6.25 x 10-19
1.6 x 10-19
1.6 x 1018
67. On heating a liquid, the refractive index generally
does not change
decrease
increase
may increase or decrease depending upon the rate of heating
68. Torque on a electric dipole of moment vector (P) when paled in an electrical field vector (E) is proportional to
P/E
E/P
P.E
PE tanθ
69. Wheat stone bridge is used to measure
emf
potential
current
resistance
70. Magnetism of a magnet
is zero at absolute zero temperature
increase with temperature
is maximum at curie temperature
becomes practically zero above curie temperature
71. The self inductance of coil is MH. If a current of 2a is flown. What is the magnetic flux through coil?
0.02 Wb
0.01 Wb
0.05 Wb
10 Wb
72. Positive rays are
electromagnetic waves
proton
ions
protons
73. Wavelength of photon is 400Å. Its energy will be
3keV
4000 eV
3.1J
3.1eV
74. According to Bohr's model of the H-atom, the radius of stationary orbit characterized by the principle of quantum number n is proportional to
π / n
n2
n
1/n2
75. In some substance, charges can flow at ordinary temperature but not at very low temperature. These are
Semi Conductors
Conductors
Insulator
Dielectric
Chemistry
76. Number of atoms of carbon present in 25 gm of Ca.CO3 is
1.505 x 1023
1.005 x 1023
1.205 x 1023
1.303 x 1023
77. Electronic Configuration of chromium is
[Ar]3d54s1
[Ar]3d64s2
[Ar]3d74s2
[Ar]3d4
78. Structure of CO2 molecule is
Linear
Tetrahedral
Angular
Polynomial
79. Which element has highest electronic affinity?
Linear
Tetrahedral
Angular
Polynomial
80. Oxidation number Fe in compound Fe2O4
1.33
4/3
+2/3
+5/3
81. MgO is an example of
basic oxide
amphoteric oxide
neutral oxide
acidic oxide
82. Down's process is used for the extraction of
Sodium
Sodium Hydroxide
Sodium Carbonate
None
83. IUPAC name of C-(CH2)4 is
2-dimethyl propane
2 methyl butane
Pentane
2 methyl propane
84. Al4C3 reacts with water to give
CH4
C2H2
H2
C2H4
85. Protein is polymer of
clycol
glucose
α-amino acid
pthalic acid
86. Which carbohydrates gives Tollen's Test?
Glucose
Fructose
Galactose
Maltose
87. DDT is an example of
Insecticide
Herbicide
Fugicede
Rodenticede
88. Tranquilizers are substance used for treatment of
cancer
Mental Anxiety
Physical Disorder
Malaria
89. Each carbon atom in benzene is
SP2 Hybridized
SP Hybridized
SP3 hybridized
SP3d hybridized
90. 1°, 2° and 3° alcohols are distinguished by
Hoffman's Test
Fehlen's Solutions
Victor Mayer's Test
Beilstein's Test
91. Reduction of aldehyde by amalgamated zinc and conc. HCL to corresponding allcone is called as
Clemenson Reduction
Wolff-Kishner Reduction
Carnnizaro's
Perkin's Reduction
92. Which is most basic?
NH3
CH3NH2
(CH3)2NH
(CH=3)3N
93. Molecular formula of white vitrcol is
ZnSo4.7H2O
Zn(OH)2
ZnCO3
ZnO
94. Cinnabar is an ore of
Zinc
Copper
Mercury
Iron
95. PH of 0.04M HNO3
1.4
2
3
4
96. Unit of rte constant for first order reaction is
Mols-1
L mol-1s-1
s-1
Mols L-1s-1
97. Which is an intensive property?
Volume
Mass
Area
Concentration
98. Unit of cell constant is
Sm-1
M-1
Ohm-1am-1
Ohm
99. Unit of radioactivity is
Curie
nik/L
Gauss
g/L
100. Compound Na2[Fe(CM)5No] is known as
Sodium Nitroprusside
Prussian blue
Tollen's Reagent
Bayer's Reagent