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AIIMS UG 2013 Mock Test

Medium 183 Questions 180 min 183 marks

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180 min · 183 marks · Full test mode with leaderboard

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1medium1 markmcq
In an experiment, four quantities and are measured with percentage error , , and respectively. Quantity is calculated as follows: . The percentage error in is:
2medium1 markmcq
The velocity of a projectile at the initial point is . Its velocity (in ) at point (the end of the trajectory on the same horizontal plane) is:
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3medium1 markmcq
A stone falls freely under gravity. It covers distances and in the first , the next and the next respectively. The relation between and is:
4easy1 markmcq
Three blocks with masses and are connected by strings, as shown in the figure. After an upward force is applied on block , the masses move upward at constant speed . What is the net force on the block of mass ? ( is the acceleration due to gravity)
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5medium1 markmcq
The upper half of an inclined plane of inclination is perfectly smooth while the lower half is rough. A block starting from rest at the top of the plane will again come to rest at the bottom, if the coefficient of friction between the block and lower half of the plane is given by:
6easy1 markmcq
A uniform force of acts on a particle of mass . Hence the particle is displaced from position to position . The work done by the force on the particle is:
7medium1 markmcq
An explosion breaks a rock into three parts in a horizontal plane. Two of them go off at right angles to each other. The first part of mass moves with a speed of and the second part of mass moves with speed. If the third part flies off with speed, then its mass is:
8medium1 markmcq
A rod of mass and length is hinged at end . The rod is kept horizontal by a massless string tied to point . When the string is cut, the initial angular acceleration of the rod is:
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9medium1 markmcq
A small object of uniform density rolls up a curved surface with an initial velocity . It reaches up to a maximum height of with respect to the initial position. The object is a:
10easy1 markmcq
A body of mass is taken from the earth's surface to the height equal to twice the radius () of the earth. The change in potential energy of the body will be:
11medium1 markmcq
Infinite number of bodies, each of mass are situated on the x-axis at distances , respectively, from the origin. The resulting gravitational potential due to this system at the origin will be:
12easy1 markmcq
The following four wires are made of the same material. Which of these will have the largest extension when the same tension is applied?
13easy1 markmcq
The wettability of a surface by a liquid depends primarily on:
14medium1 markmcq
The molar specific heats of an ideal gas at constant pressure and volume are denoted by and , respectively. If and is the universal gas constant, then is equal to:
15easy1 markmcq
A piece of iron is heated in a flame. It first becomes dull red, then reddish yellow, and finally turns white hot. The correct explanation for this observation is possible using:
16medium1 markmcq
A gas is taken through the cycle , where , , and in coordinates ( in , in ). What is the net work done by the gas?
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17medium1 markmcq
During an adiabatic process, the pressure of a gas is found to be proportional to the cube of its temperature. The ratio of for the gas is:
18easy1 markmcq
In a diagram for an ideal gas, two isobaric lines and are shown. If the slope of is less than the slope of , what is the relation between the pressures?
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19medium1 markmcq
The amount of heat energy required to raise the temperature of of Helium at NTP from to is:
20medium1 markmcq
A wave travelling in the direction having displacement along as , wavelength and frequency is represented by:
21easy1 markmcq
If we study the vibration of a pipe open at both ends, then which of the following statements is not true?
22medium1 markmcq
A source of unknown frequency gives with a known source of . The second harmonic of () gives with a source of . The unknown frequency is:
23hard1 markmcq
Two pith balls carrying equal charges are suspended from a common point by strings of equal length. The equilibrium separation between them is . Now the strings are rigidly clamped at half the height (). The equilibrium separation between the balls now becomes:
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24easy1 markmcq
and are three points in a uniform electric field directed along the positive x-axis. is further left than , and is further left than . The electric potential is:
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25easy1 markmcq
A wire of resistance is stretched to twice its original length. The resistance of the stretched wire would be:
26easy1 markmcq
The internal resistance of a cell which gives a current of through a resistance of is:
27medium1 markmcq
The resistances of the four arms in a Wheatstone bridge are respectively. The e.m.f. is and internal resistance is . What is the current drawn from the cell?
28hard1 markmcq
A proton released from rest starts with acceleration towards west. When projected towards north with speed , it moves with initial acceleration towards west. The electric and magnetic fields in the room are:
29easy1 markmcq
A current loop in a magnetic field:
30medium1 markmcq
A bar magnet of length and magnetic dipole moment is bent in the form of an arc subtending at the center. The new magnetic dipole moment will be:
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31easy1 markmcq
A wire loop is rotated in a magnetic field. The frequency of change of direction of the induced e.m.f. is:
32medium1 markmcq
A coil of self-inductance is connected in series with a bulb and an AC source. Brightness of the bulb decreases when:
33easy1 markmcq
The condition under which a microwave oven heats up a food item containing water molecules most efficiently is:
34medium1 markmcq
Ratio of longest wavelengths corresponding to Lyman and Balmer series in hydrogen spectrum is:
35medium1 markmcq
The half-life of a radioactive isotope 'X' is . It decays to stable element 'Y'. The ratio of 'X' to 'Y' in a rock is . The age of the rock is:
36medium1 markmcq
Mass defect in a fusion reaction of Hydrogen to Helium is . The energy liberated per nucleon is approximately: (Given )
37medium1 markmcq
For photoelectric emission, the cutoff frequency is . If radiation of frequency impinges on the plate, the maximum velocity of emitted electrons is:
38medium1 markmcq
The wavelength of an electron and of a photon of same energy are related by:
39medium1 markmcq
A plano-convex lens () fits exactly into a plano-concave lens (). Their plane surfaces are parallel. Focal length of the combination is:
40hard1 markmcq
For a normal eye, the cornea provides power of and the eye lens provides . The estimated distance between the retina and the lens is:
41hard1 markmcq
In YDSE, slits are apart and . Two wavelengths and are used. At what minimum distance from the central fringe will their bright fringes coincide?
42medium1 markmcq
A parallel beam of fast moving electrons is incident normally on a narrow slit. If the speed of electrons is increased:
43easy1 markmcq
In a n-type semiconductor, which of the following is true?
44medium1 markmcq
In a CE amplifier, the transistor used has transconductance . If replaced with another having transconductance , the voltage gain becomes:
45easy1 markmcq
The output () of a NAND gate followed by a NOT gate is equivalent to:
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46medium1 markmcq
What is the maximum number of electrons that can be associated with the following set of quantum numbers: ?
47medium1 markmcq
What is the activation energy for a reaction if its rate doubles when the temperature is raised from to ? ()
48medium1 markmcq
A hydrogen gas electrode is made by dipping platinum wire in a solution of HCl of . The oxidation potential of the electrode would be:
49easy1 markmcq
A reaction having equal energies of activation for forward and reverse reactions has:
50easy1 markmcq
The number of carbon atoms per unit cell of diamond unit cell is:
51easy1 markmcq
Maximum deviation from ideal gas behavior is expected from:
52medium1 markmcq
A metal has an FCC lattice with edge length and density . The molar mass of the metal is:
53medium1 markmcq
A magnetic moment of will be shown by:
54easy1 markmcq
Roasting of sulphides gives a colorless gas with a choking smell. Its aqueous solution is acidic and acts as a reducing agent. The gas is:
55easy1 markmcq
Which is the strongest acid among the following?
56easy1 markmcq
Which of the following is paramagnetic?
57easy1 markmcq
Which of the following structure is similar to graphite?
58easy1 markmcq
The basic structural unit of silicates is:
59medium1 markmcq
By which of the following reactions can Benzaldehyde not be prepared?
60medium1 markmcq
Which of the following does not give oxygen on heating?
61easy1 markmcq
Which of the following lanthanoid ions is diamagnetic? (At. No. )
62easy1 markmcq
Identify the correct order of solubility in aqueous medium:
63easy1 markmcq
is isostructural with:
64medium1 markmcq
An excess of is added to of a solution of . The number of moles of precipitated would be:
65medium1 markmcq
At , the molar conductance of a aqueous solution of ammonium hydroxide is and at infinite dilution its molar conductance is . The degree of ionisation of ammonium hydroxide at the same concentration and temperature is:
66medium1 markmcq
Based on the equation , which of the following conclusions is not correct?
67medium1 markmcq
A button cell used in watches functions as follows: Given: The cell potential is:
68medium1 markmcq
How many grams of concentrated nitric acid solution (70% by mass) should be used to prepare of ?
69easy1 markmcq
Dipole-induced dipole interactions are present in which of the following pairs?
70easy1 markmcq
Identify the structure of the compound whose IUPAC name is 3-Ethyl-2-hydroxy-4-methylhex-3-en-5-ynoic acid.
71medium1 markmcq
Which of the following is not a monomer for a high molecular mass silicone polymer?
72easy1 markmcq
Which of the following statements about interstitial compounds is incorrect?
73easy1 markmcq
Which one of the following molecules contains no bond?
74medium1 markmcq
Which of the following statements is not true regarding antiseptics and disinfectants?
75medium1 markmcq
Among the following ethers, which one will produce methyl alcohol on treatment with hot concentrated ?
76easy1 markmcq
Nylon is an example of:
77easy1 markmcq
The structure of the isobutyl group in an organic compound is:
78medium1 markmcq
Nitrobenzene on reaction with concentrated at forms:
79easy1 markmcq
Which of the following meta-directing groups is the most deactivating in aromatic substitution?
80easy1 markmcq
molecules of urea are present in of its solution. The concentration of the solution is:
81easy1 markmcq
Which of the following is a polar molecule?
82easy1 markmcq
Which of the following is the monomer of Neoprene?
83medium1 markmcq
What is the correct order of stability for the following tautomeric compounds?(I) (II) (III)
84medium1 markmcq
Which of the following compounds will not undergo Friedel-Crafts reaction easily?
85medium1 markmcq
Select the wrong statement regarding gametes and reproduction in algae:
86easy1 markmcq
Which one of the following is not a correct statement?
87easy1 markmcq
Isogamous condition with non-flagellated gametes is found in:
88easy1 markmcq
Besides paddy fields, cyanobacteria are also found inside the vegetative part of:
89easy1 markmcq
Megasporangium is equivalent to:
90medium1 markmcq
Read the following statements:(A) In liverworts, mosses and ferns, gametophytes are free-living.(B) Gymnosperms and some ferns are heterosporous.(C) Sexual reproduction in Fucus, Volvox and Albugo is oogamous.(D) The sporophyte in liverworts is more elaborate than that in mosses.(E) Both Pinus and Marchantia are dioecious.How many of the above statements are correct?
91medium1 markmcq
Among bitter gourd, mustard, brinjal, pumpkin, china rose, lupin, cucumber, sunnhemp, gram, guava, bean, chilli, plum, petunia, tomato, rose, withania, potato, onion, aloe and tulip, how many plants have hypogynous flowers?
92easy1 markmcq
Interfascicular cambium develops from the cells of:
93medium1 markmcq
In China rose, the flowers are:
94easy1 markmcq
Lenticels are involved in:
95easy1 markmcq
The age of a tree can be estimated by:
96easy1 markmcq
The seed coat is not thin and membranous in:
97easy1 markmcq
The transition state structure of the substrate formed during an enzymatic reaction is:
98medium1 markmcq
A phosphoglyceride is always made up of:
99easy1 markmcq
Pigment-containing membranous extensions in some cyanobacteria are:
100easy1 markmcq
A major site for the synthesis of lipids is:
101easy1 markmcq
The complex formed by a pair of synapsed homologous chromosomes is called:
102medium1 markmcq
The three boxes in a diagram represent the major biosynthetic pathways in aerobic respiration. Pathway A is Glycolysis, B is Krebs cycle, and C is ETS. Arrows represent reactants/products. Arrows 4, 8, and 12, which exit from each pathway respectively, can all represent:
103easy1 markmcq
The most abundant intracellular cation is:
104easy1 markmcq
During seed germination, its stored food is mobilized by:
105easy1 markmcq
Which of the following criteria does not pertain to facilitated transport?
106easy1 markmcq
The first stable product of fixation of atmospheric nitrogen in leguminous plants is:
107medium1 markmcq
Which of the following metabolites is common to the respiration-mediated breakdown of fats, carbohydrates, and proteins?
108easy1 markmcq
Which one of the following statements is correct?
109easy1 markmcq
Product of sexual reproduction generally generates:
110easy1 markmcq
Meiosis takes place in:
111easy1 markmcq
The advantage of cleistogamy is:
112medium1 markmcq
Monoecious plant of Chara shows occurrence of:
113easy1 markmcq
Perisperm differs from endosperm in:
114medium1 markmcq
Which of the following statements is not true of two genes that show recombination frequency?
115easy1 markmcq
Variation in gene frequencies within populations can occur by chance rather than by natural selection. This is referred to as:
116medium1 markmcq
If two persons with 'AB' blood group marry and have children, the children could be classified as 'A' : 'AB' : 'B' in a ratio. Protein electrophoresis reveals presence of both 'A' and 'B' type proteins in 'AB' individuals. This is an example of:
117easy1 markmcq
The process by which organisms with different evolutionary history evolve similar phenotypic adaptations in response to a common environmental challenge is called:
118easy1 markmcq
The tendency of a population to remain in genetic equilibrium may be disturbed by:
119easy1 markmcq
Which of the following Bt crops is being grown in India by farmers?
120easy1 markmcq
A good producer of citric acid is:
121easy1 markmcq
DNA fragments generated by restriction endonucleases in a chemical reaction can be separated by:
122medium1 markmcq
The colonies of recombinant bacteria appear white in contrast to blue colonies of non-recombinant bacteria because of:
123easy1 markmcq
Which of the following are likely to be present in deep sea water?
124easy1 markmcq
Natural reservoir of phosphorus is:
125easy1 markmcq
Secondary productivity is the rate of formation of new organic matter by:
126easy1 markmcq
Which one of the following is not used for ex-situ plant conservation?
127medium1 markmcq
Which of the following represent the maximum number of species among global biodiversity?
128medium1 markmcq
Match the name of the animal with its characteristics and phylum/class:
129medium1 markmcq
Which group of animals belong to the same phylum?
130easy1 markmcq
The H-zone in the skeletal muscle fibre is due to:
131medium1 markmcq
What external changes are visible after the last moult of a cockroach nymph?
132easy1 markmcq
The Golgi complex plays a major role in:
133medium1 markmcq
Which organelle matches correctly with its function?
134easy1 markmcq
The macromolecule chitin is a:
135medium1 markmcq
A stage in cell division shows nuclear envelope reforming and Golgi complex reforming. Identify the stage:
136medium1 markmcq
Select the correct match of digested products with their absorption site and mechanism:
137medium1 markmcq
A baby suffers from stunted growth and mental retardation. This is a result of:
138easy1 markmcq
In the human respiratory system, the Bag-like structures where gas exchange occurs are:
139medium1 markmcq
Which vessel takes deoxygenated blood from the body parts to the right auricle?
140easy1 markmcq
In a standard ECG, the P-wave represents:
141medium1 markmcq
The gland located at the anterior part of the kidney which secretes Catecholamines is:
142medium1 markmcq
Select the correct statement with respect to locomotion in humans:
143easy1 markmcq
The joint between the atlas and axis is an example of:
144easy1 markmcq
In the diagram of a synapse, C represents:
145easy1 markmcq
Which part of the human eye contains photoreceptors (rods and cones)?
146medium1 markmcq
Select the correct statement in relation to the endocrine system:
147easy1 markmcq
The correct sequence of sperm formation is:
148easy1 markmcq
Menstrual flow occurs due to the lack of:
149easy1 markmcq
Which of the following is not a function of the placenta?
150medium1 markmcq
One of the legal methods of birth control is:
151easy1 markmcq
Which of the following cannot be detected in a developing foetus by amniocentesis?
152easy1 markmcq
Artificial insemination means:
153easy1 markmcq
The incorrect statement with regard to Haemophilia is:
154easy1 markmcq
If both parents are carriers for Thalassemia, which is an autosomal recessive disorder, what are the chances of pregnancy resulting in an affected child?
155easy1 markmcq
The central dogma of molecular biology, which describes the flow of genetic information, was proposed by:
156medium1 markmcq
Which enzyme/s will be produced in a cell in which there is a non-sense mutation in the lac Y gene?
157easy1 markmcq
According to Darwin, organic evolution is primarily due to:
158medium1 markmcq
The eye of an octopus and the eye of a cat show different patterns of structure, yet they perform similar functions. This is an example of:
159easy1 markmcq
Infection of Ascaris (Roundworm) usually occurs by:
160easy1 markmcq
Cell-mediated immunity (CMI) inside the human body is carried out by:
161easy1 markmcq
In plant breeding programmes, the entire collection of plants/seeds having all the diverse alleles for all genes in a given crop is called:
162easy1 markmcq
During sewage treatment, biogases are produced which include:
163medium1 markmcq
A biologist studies a population of rats. Natality = 250, Mortality = 240, Immigration = 20, Emigration = 30. The net increase in population is:
164easy1 markmcq
Which process of decomposition is correctly described?
165medium1 markmcq
A sedentary sea anemone gets attached to the shell lining of a hermit crab. This association is an example of:
166easy1 markmcq
Global warming can be controlled by:
167easy1 markmcq
The Air (Prevention and Control of Pollution) Act came into force in India in the year:
168easy1 markmcq
Which of the following groups has the maximum number of species among the global biodiversity of plants and fungi?
169medium1 markmcq
Which of the following is a representative of the Phylum Arthropoda?
170easy1 markmcq
Rough Endoplasmic Reticulum (RER) is primarily involved in the synthesis of:
171medium1 markmcq
Kyoto Protocol was endorsed at:
172hard1 markmcq
In a standard ECG, the end of the T-wave marks the end of:
173medium1 markmcq
Which of the following is a hormone-releasing Intra Uterine Device (IUD)?
174medium1 markmcq
Radial symmetry is often exhibited by animals which:
175medium1 markmcq
Industrial melanism is an example of:
176medium1 markmcq
HIV that causes AIDS, first starts destroying:
177easy1 markmcq
In a grazing food chain, the first trophic level is occupied by:
178medium1 markmcq
The pioneer species in a hydrarch succession are:
179hard1 markmcq
In a dihybrid cross (), the phenotypic ratio of the offspring is:
180medium1 markmcq
The property of normal cells by which they inhibit the uncontrolled growth of other cells when they come in contact with them is:
181medium1 markmcq
Increase in the concentration of the toxicant at successive trophic levels is known as:
182easy1 markmcq
Which of the following is commonly used as a vector for cloning genes in higher plants?
183easy1 markmcq
Which of the following is responsible for the depletion of the ozone layer in the stratosphere?

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