ADMISSION CUM SCHOLARSHIP TEST-2015
MEDICAL REBOOST (MRB)
SAMPLE QUESTION PAPER
Maximum Marks: 240
INSTRUCTIONS
(A)
General :
1.
This Question paper contains THREE parts (Physics, Chemsitry and Biology).
2.
This Question Paper contains 12 pages, other than the OMR.
3.
This Question Paper contains total 60 questions, 20 questions each in Physics, Chemistry and
Biology.
4.
The Question Paper has blank spaces at the bottom of each page for rough work.No additional
sheets will be provided for rough work.
5.
Blank papers, clip boards, log tables, slide rule, calculators, cellular phones, pagers and electronic
gadgets, in any form, are NOT allowed.
6.
This booklet also contains the OMR answer sheet (i.e., A machine gradable Response Sheet).
(B)
Answering on the OMR:
7.
Each question will have 4 choices in both the Sections, out of which only one choice is correct.
8.
Fill the bubble with Ball Pen (Blue or Black) ONLY.
(C)
Filling – Name and Registration No.
9.
On the OMR sheet, write your Name and Registration No. using ball pen. Also, put your signature
in the appropriate box using ball pen.
(D)
Marking Scheme:
9.
(a) For each question, you will be awarded 4 marks if you have darkened only one bubble
corresponding to the right answer.
(b) In case you have not darkened any bubble, you will be awarded 0 mark for that question.
(c) In all other cases, you will be awarded –1 mark.
Name :.............................................................................................................
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[2]
PART-A : PHYSICS
(Single Correct Answer Type)
This section contains 20 multiple choice questions. Each question has 4 choices (A), (B), (C) and
(D), out of which ONLY ONE is correct.
1.
2.
If an electron is brought toward another electron, the electrostatic potential energy of the system
(A) becomes zero
(B) increases
(C) remains the same
(D) decreases
The internal resistance of a cell of e.m.f. 2 volt is 0.1 . It is connected to a resistance of 3.9.
the voltage across the cell will be (in volt.)
(A) 1.95 V
3.
4.
(D) 1.9 V
(A) high resistance in series
(B) low resistance in series
(C) high resistance in parallel
(D) low resistance in parallel
In nuclear reactors, the controlling rods are made of
(B) cadmium
(C) plutonium
(D) graphite
The magnetic flux linked with a coil, in weber, is given by the equation : = 5t2 + 3t + 16. The
change induced e.m.f. in the coil in the fourth second will be
(A) 43 V
6.
(C) 2 V
A galvanometer can be changed into ammeter by providing
(A) stainless steel
5.
(B) 0.5 V
(B) 10 V
(C) 33 V
(D) 108 V
Radius of gyration of a body does not depends upon
(A) shape of the body
(B) axis of rotation
(C) mass of constituent particles of system
(D) rotational motion
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7.
Two satellites of mass m1 and m2 (m1 > m2) are going around the earth in orbits of radius r1
and r2 (r1 > r2). Which statement about their velocities is correct?
(A) v1 < v2
8.
10.
11.
(B) v1 > v2
(C) v1/r1 = v2/r2
(D) v1 = v2
If S is stress and Y is Young’s modulus of a wire material, then energy stored in the wire per
unit volume, is
(A)
9.
[3]
S2
2Y
(B)
2Y
S
(C)
2
S
2Y
(D) 2S2Y
The surface tension of liquid decreases with a rise in
(A) diameter of container
(B) temperature of the liquid
(C) thickness of container
(D) viscosity of the liquid
The bulb of one thermometer is spherical,other is oval, while that of another is cylindrical. If
both of them have equal amounts of mercury, which one will respond quickly to the temperature?
(A) oval
(B) Spherical
(C) Cylindrical
(D) Both (B) and (C) equally
If CP and CV are the molar specific heats for a gas at constant pressure and at constant
volume respectively, then the relation CP – CV = R is exact for
(A) ideal gas and nearly true for real gases at high pressure.
(B) ideal and real gases at all pressure
(C) ideal gas at all pressure and nearly true for real gases at high temperature and low pressure
(D) ideal gas at all pressure and real gas at low temperature and at high temperature and low
pressure
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[4]
12.
For Boyle’s law to hold good, the gas should be
(A) perfect and at constant temperature but variable mass
(B) perfect and at constant mass and temperature
(C) real and at constant temperature but variable mass
(D) real and at constant mass and temperature.
13.
14.
15.
16.
17.
The composition of two simple harmonic motions of equal periods at right angles to each
other and with a phase difference of , results in the displacement of the particle along a
(A) straight line
(B) circle
(C) parabola
(D) ellipse
The frequency of a tuning fork is 256 Hz. It will not resonate with a fork of frequency
(A) 738 Hz
(B) 256 Hz
(C) 768 Hz
(D) 512 Hz
The dual nature of light is exhibited by
(A) photoelectric effect
(B) diffraction and reflection
(C) diffraction and phtoelectric effect
(D) refraction and interference
The dimensions of the modulus of rigidity is
(A) [ML–2 T–2]
(B) [MLT–2]
(C) [ML–1 T–1]
(D) [ML–1 T–2]
The displacement of a body is given to be proportional to the cube of time elapsed. The
magnitude of the acceleration of the body, is
(A) constant but not zero
(B) increasing with time
(C) zero
(D) decreasing with time.
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18.
[5]
A body A is dropped vertically from the top of a tower. If another identical body B is projected
horizontally from the same point at the same instant, then
(A) both A and B will reach the ground simultaneously
(B) A will reach the ground earlier than B
(C) B will reach the ground earlier than A
(D) either A or B can reach the ground earlier depending on their speeds
19.
20.
If the normal contact force is doubled, the coefficient of friction at the contact surface gets
(A) doubled
(B) halved
(C) not changed
(D) tripled
Kinetic energy, with any reference, must be
(A) negative only
(B) zero only
(C) positive only
(D) non negative
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[6]
PART-B : CHEMISTRY
(Single Correct Answer Type)
This section contains 20 multiple choice questions. Each question has 4 choices (A), (B), (C) and
(D), out of which ONLY ONE is correct.
21.
Ksp of Mg(OH)2 is 1.8 × 10–11 at 30°C. Its molar solubility is .... at pH = 12.
(A) 1.8 × 10–11 M
22.
23.
(B) 1.8 × 10–9 M
(C) 1.34 × 10–54 M
(D) 1.8 × 10–7 M
Molar volume of CO2 is maximum at
(A) NTP
(B) 0°C and 2.0 atm
(C) 127°C and 1 atm
(D) 273°C and 2.0 atm
Calculate H (in Joules) for, C(graphite)  C(diamond),
from the following data
C  graphite   O2  g 
 CO2  g ;
H  393.5 kJ
C  diamond  O2  g 
 CO2  g ;
H  395.4 kJ
(A) 1900
24.
(C) 190000
(D) + 788.9 × 103
One mole of a perfect gas expands isothermally to ten times its original volume. The change
in entropy is
(A) 0.1 R
25.
(B) –788.9 × 103
(B) 2.303 R
(C) 10.0 R
(D) 100.0 R
The oxidising agent in the reaction
2MnO4  16H  5C2O42  2Mn  8H2O  10CO2
(A) MnO4
(B) H+
(C) C2O24
(D) Both MnO4 & H
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26.
Each hydrogen atom is excited by giving 10.2 eV. The maximum number of spectral lines in
the emission is equal to
(A) 1
27.
(B) 2
(C) 3
(D) 4
An electron is moving in first Bohr’s orbit. Its deBrogile wavelength is  . What is the
circumference of the fourth orbit ?
(A) 2 / 
28.
[7]
(B) 2
(C) 4
(D) 4 / 
For a reaction
2 A  s   2B  g   3C     D  g  . If heat of reaction at constant pressure is -28 K.cal. The
heat of reaction at constant volume at 270C is
(A) –24.4 K.cal
29.
(D) 28 K.cal
(B) -1169 KJ/mole
(C) 1169 KJ/mole
(D) 2815 KJ/mole
In a 0.2 molal aqueous solution of a weak acid HX the degree of ionization is 0.3 Taking kf for
water as (A)85, the freezing point of the solution will be nearest to
(A) -0.360C
31.
(C) –28.4 K.cal
The values of heat of combustion of graphite and H2 are -395 and -269 KJ respectively. If
heat of formation of glucose is -1169 KJ, the heat of combustion of glucose is
(A) -2815 KJ/mole
30.
(B) 27.4 K.cal
(B) - 0.260C
(C) +0.480C
(D) -0.480C
SRP Values of Mg2+ | Mg, Fe2+ | Fe and Zn2+ | Zn are –2.36V, –0.44V and –0.76V respectively.
The correct statement is
(A) Mg+2 can oxidise Fe
(B) Zn+2 can oxidise Fe
(C) Zn can reduce Mg2+
(D) Zn can reduce Fe2+
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[8]
32.
The reaction, 2A  B  Products, follows the mechanism
2A  A 2
A 2  B  Products (Slow).
The order of the reaction is
(A) 2
33.
(B) 1
(D) 1
1
2
At 400 K the half-life of a sample of a gaseous compound initially at 56.0 kPa is 340 s. When
the pressure is 28.0 kPa, the half-life is 170s. The order of the reaction is
(A) 0
34.
(C) 3
(B) 2
(D) 1 2
(C) 1
Which one of the following represents Freundlich adsorption isotherm ?
(A) log x
(B) log
m
x
m
log p
log p
(C) log
x
m
(D) log
x
m
log k
log p
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35.
The number of atoms in 0.1 mol of a triatomic gas is (N A  6.02  1023 mol1 )
(A) 6.026  1022
36.
37.
40.
(D) 3.600  1023
(C) 1.800  1022
(A) ns  np  (n  1)d  (n  2)f
(B) ns  (n  2)f  (n  1)d  np
(C) ns  (n  1)d  (n  2)f  np
(D) ns  (n  2)f  np  (n  1)d
Two gases A and B having the same volume diffuse through a porous partition in 20 and 10
s respectively. The molecular mass of A is 49 u. Molecular mass of B will be
(B) 50.00 u
(C) 12.25 u
(D) 6.50 u
By what factor does the average velocity of a gaseous molecule increases, when the
temperature (in kelvin) is doubled?
(A) 1.4
39.
(B) 1.806  1023
If n = 6, the correct sequence of fIlling of electrons will be
(A) 25.00 u
38.
[9]
(B) 2.0
(C) 2.8
(D) 4.0
If the enthalpy change for the transition of liquid water to steam is 300 KJ mol1 at 27°C, the
entropy change for the process would be
(A) 1000 JK–1 mol–1
(B) 10 JK–1 mol–1
(C) 1.0 JK–1 mol–1
(D) 0.1 JK–1 mol–1
A metal crystalizes in fcc lattice and edge length of the unit cell is 620 pm. The radius of
metal atom is
(A) 265.5 pm.
(B) 310 pm.
(C) 219.2 pm.
(D) 438.6 pm.
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[ 10 ]
PART-C : BIOLOGY
(Single Correct Answer Type)
This section contains 20 multiple choice questions. Each question has 4 choices (A), (B), (C) and
(D), out of which ONLY ONE is correct.
41.
Which of the following is viral disease ?
(A) Hepatitis
42.
43.
44.
(B) protein synthesis
(C) breakdown of macromolecules
(D) phosphorylation of flavoproteins
A product may bind to the regulatory enzyme’s active site, preventing it from binding substrate
and temporarity shutting down the metabolic pathway. This is called
(A) allosteric inhibition
(B) competitive inhibition
(C) Synergistic action
(D) non-competitive inhibition
Man’s utilization of starch as energy source depends on the ability to converty it complete to
individual glucose units. This process initiated by the action of enzymes
(B) Cellulases
(C) Proteases
(D) none of the above
(C) thyroid gland
(D) lymph
Kupffer cells are present in
(B) liver
Western blot test is done for the confirmation of
(A) malaria
47.
(D) Nephritis
(A) oxidation-reduction reaction
(A) spleen
46.
(C) Neuritis
In mitochondria, cristae act as sites for
(A) Amylases
45.
(B) Ostesis
(B) filaria
(C) anaemia
(D) AIDS
Peritrophic membrane is secreted in which segments of cockroach
(A) tracheal tubes
(B) salivary glands
(C) mesenteron
(D) brood pouch
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48.
[ 11 ]
An example for sex influenced inheritance is
(A) haemophilia
49.
50.
(B) colourblindness
(A) epidermolysis
(B) Truner’s syndrome
(C) haemophilia
(D) hair on pinna
The plasmid pBR322 used in biotechnology is
(B) M32 phase
53.
54.
(C) parasite
(D) cloning vehicle
Which of the following is an unicellular sac-fungus ?
(A) Claviceps
52.
(D) Down’s syndrome
An example for holandric inheritance is
(A) yeast
51.
(C) baldness
(B) Saccharomyces (C) Penicillium
(D) Aspergillus
Which of the following pteridophytes belong to class Pteropsida ?
(A) Pteris and Adiantum
(B) Adiantum and Psilotum
(C) Psilotum and Lycopodium
(D) Lycopodium and Dryopteris
Select the correctly matched pair
(A) Colchicum -
Fabaceae
(B) Gloriosa
-
Solanaceae
(C) Petunia
Solanaceae
(D) Pisum
-
Liliaceae
-
Select the wrong matched pair with regard to C4 cycle
(A) Site of initial carboxylation
-
Mesophyll cells
(B) Primary CO2 acceptor
-
PEP
(C) C4 Plant
-
Sugarcane
(D) Primary CO2 fixation product
-
PGA
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[ 12 ]
55.
Exponential growth in plants can be expressed as
(A) Lt
56.
= Lo + rt
60.
(B) Streptomycin
(B) 1
(D) W 1 = W o + ert
(C) Penicillin
(D) Antibodies
(C) 4
(D) 8
(C) Drosophila
(D) Birds
XO type of sex determination is seen in
(A) Man
59.
(C) W 1 = W oert
During meiosis, the alleles of the parental pair segregate from each other. How many
allele(s) are then transmitted to a gamete ?
(A) 2
58.
= W oert
Flemming, Chain and Florey were awarded the Nobel prize in 1945 for the discovery of
(A) Staphylococcus
57.
(B) W 1
(B) Grasshopper
The inducer for switching ‘on’ the lac operon in bacteria is
(A) Presence of lactose
(B) Number of lactose
(C) Presence of sucrose
(D) Presence of RNA polymerase
Green revolution in India occurred during
(A) 1970’s
(B) 1980’s
(C) 1960’s
(D) 1950’s
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[ 13 ]
ANSWER KEYS (MEDICAL)
MEDICAL REBOOST (MRB)
PHYSICS
1.
(B)
2.
(A)
3.
(D)
4.
(B)
5.
(B)
6.
(D)
7.
(A)
8.
(A)
9.
(B)
10. (C)
11. (C)
12. (B)
13.
(A)
14. (A)
15. (C)
16. (D)
17. (B)
18. (A)
19.
(C)
20. (D)
CHEMISTRY
21.
(D)
22. (C)
23. (A)
24. (B)
25. (A)
26. (A)
27.
(C)
28. (A)
29. (A)
30. (D)
31. (D)
32. (C)
33.
(A)
34. (C)
35. (B)
36. (B)
37. (C)
38. (A)
39.
(A)
40. (C)
BIOLOGY
41.
(A)
42. (A)
43. (A)
44. (A)
45. (B)
46. (D)
47.
(C)
48. (C)
49. (D)
50. (D)
51. (B)
52. (A)
53.
(C)
54. (D)
55. (B)
56. (C)
57. (B)
58. (B)
59.
(A)
60. (C)
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