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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 101. |
Chief advantage of encystment to an Amoeba isA. The ability to survive during adverseB. The ability to live for some time without ingesting foodC. Protection from parasites and predatorsD. The chance to get rid of accumulated waste products |
| Answer» Correct Answer - A | |
| 102. |
First child of a normal pigmented couple is albino. The possibility of a second child being an albino isA. `25%`B. `50%`C. `75%`D. `100%` |
| Answer» Correct Answer - A | |
| 103. |
Tidal Volume and Expiratory Reserve Volume an athlete is 500 mL and 1000 mL respectively. What will be his Expiratory Capacity if the Residual Volume is 1200 mL?A. 2700 mLB. 1500 mLC. 1700 mLD. 2200 mL |
| Answer» Correct Answer - B | |
| 104. |
the haemoglobin of a human foetusA. has only 2 protein subunits instead of 4B. has a higher affinity for oxygen than that of an adultC. has a lower affinity for oxygen than that of an adultD. its affinity for oxygen is the same as that of an adult |
| Answer» Correct Answer - B | |
| 105. |
What is sarcomere ?A. Part between two H-lineB. Part between two A-lineC. Part between two I-bandD. Part between two Z-line |
| Answer» Correct Answer - D | |
| 106. |
Acromegaly/Gigantism is caused byA. Excess of S.T.H.B. Excess of ThyroxinC. Deficiency of ThyroxinD. Excess of Adrenalin |
| Answer» Correct Answer - A | |
| 107. |
In fluid mosaic model of plasma membrane ,A. Upper layer is non-polar and hydrophilicB. Polar layer is hydrophobicC. Phospholipids form a bimolecular layer in middle partD. Proteins form a middle layer |
| Answer» Correct Answer - C | |
| 108. |
Organisms which obtain energy by the oxidation of reduced inorganic compounds are calledA. Photo autotrophsB. Chemo autotrophsC. SaprozoicD. Coproheterotrophs |
| Answer» Correct Answer - B | |
| 109. |
In a cereal grain the single cotyledon of embryo is represented byA. ColeorhizaB. ScutellumC. ProphyllD. Coleoptile |
| Answer» Correct Answer - B | |
| 110. |
Concanavalin A is :A. a pigmentB. an alkaloidC. an essential oilD. a lectin |
| Answer» Correct Answer - D | |
| 111. |
Identify the alloy containing a non metal as a constitunt in itA. Bell metalB. BronzeC. InvarD. Steel |
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Answer» Correct Answer - D Steel `to Fe+C` |
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| 112. |
What is necessary for ripening of fruits :A. 80% of ethyleneB. Abscissic acidC. 2, 4 DD. A.M.O. – 16 |
| Answer» Correct Answer - A | |
| 113. |
Which statement is correct:A. A. indica is largest wild honey beeB. Wax is waste material of honey beeC. C.V Fritsch discovered the transmission methods is honey beeD. Drone of honey bee is diploid |
| Answer» Correct Answer - C | |
| 114. |
Primary function of enteronephric nephridia of Pheretima isA. OsmoregulationB. Excretion of nitrogenuous wasteC. RespirationD. Locomotion |
| Answer» Correct Answer - B | |
| 115. |
Length of one loop of B-DNA-A. 3.4 nm.B. 0.34 nmC. 20 nmD. 10 nm |
| Answer» Correct Answer - A | |
| 116. |
Similarity in Ascaris lumbricoides and Anopheles stephensi isA. Sexual dimorphismB. MetamerismC. Anaerobic respirationD. endoparasitism |
| Answer» Correct Answer - A | |
| 117. |
The genetic defect-adenosine deaminase (ADA) deficiency may be cured permanently byA. Enzyme replacement therapyB. Periodic infusion of genetically engineered lymphocytes having functional ADA cDNAC. Administering adenosine deaminase activatorsD. Introducing bone marrow cells producing ADA into cells at early embryonic stages |
| Answer» Correct Answer - 4 | |
| 118. |
A person likely to develop tetanus is immunized by administering or When a quick immune response is required due to infection of a deadly microbes, the patient is injected eithA. Weakned germsB. Dead germsC. Preformed antibodiesD. Wide spectrum antibiotics |
| Answer» Correct Answer - 3 | |
| 119. |
What is true about Bt toxin?A. The concerned Bacillus has antitoxinsB. The inactive protoxin gets converted into active form in the insect gutC. Bt protein exists as active toxin in the BacillusD. The activated toxin enters the ovaries of the pest to sterillise it and thus prevent its multiplication. |
| Answer» Correct Answer - 2 | |
| 120. |
Transgenic plants are the onesA. Grown in artificial medium after hybridization in the fieldB. Produced by a somatic embryo in artificial mediumC. Generated by introducing foreign DNA in to a cell and regenerating a plant from that cellD. Produced after protoplast fusion in artifical medium |
| Answer» Correct Answer - 3 | |
| 121. |
Polyethylene glycol method is used forA. Energy production from sewageB. Gene transfer without a vectorC. Biodiesel productionD. Seedless fruit production |
| Answer» Correct Answer - 2 | |
| 122. |
Which of the following is a symbiotic nitrogen fixer ?A. AzollaB. GlomusC. AzotobacterD. Frankia |
| Answer» Correct Answer - 4 | |
| 123. |
A ball rolls without slipping. The radius of gyration of the ball about an axis passing through its centre of mass is `k`. If radius of the ball be `R`, then the fraction of total energy associated with its rotation will be.A. `(K^2+R^2)/R^2`B. `K^2/R^2`C. `K^2/(K^2+R^2)`D. `R^2/(K^2+R^2)` |
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Answer» Correct Answer - C T.K.E.=`1/2mv^2(1+K^2//R^2)` R.K.E.=`1/2mv^2(K^2//R^2)` |
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| 124. |
In which of the following comp. H atom is directly linked with phosphorusA. `H_3PO_2`B. `H_3PO_3`C. `H_3PO_4`D. `H_4P_2O_7` |
| Answer» Correct Answer - A::B | |
| 125. |
`aZn+bNO^(-)+cH+todNH_4^++eH_2O+fZn^(+2)` a, b, c, d, e and f are :A. `{:(a,b,c,d,e,f),(2,4,6,8,4,2):}`B. `{:(a,b,c,d,e,f),(1,4,10,3,1,4):}`C. `{:(a,b,c,d,e,f),(4,1,10,1,3,4):}`D. `{:(a,b,c,d,e,f),(10,4,1,3,4,2):}` |
| Answer» Correct Answer - C | |
| 126. |
Which of the following complex ion is not expected to absorb visible light?A. `[Ni(CN)_(4)]^(2-)`B. `[Cr(NH_(3))_(6)]^(3+)`C. `[Fe(H_(2)O)_(6)]^(3+)`D. `[Ni(H_(2)o)_(6)]^(2+)` |
| Answer» Correct Answer - A | |
| 127. |
People who have migrated from the planes to an area adjoining Rohtang pass about six months backA. Suffer from altitude sickness with symptons like nausea, fatigue, etc.B. Have the usual RBC count but their haemoglobin has very high binding affinity to `O_(2)`.C. Have more RBCs and their haemoglobin has a lower binding affinity to `O_(2)`D. Are not physically fit to play games like football |
| Answer» Correct Answer - C | |
| 128. |
Which of the following is the correct percentage of the two (out of the total of 4) greenhouse gases that contibute to the total global warming?A. `N_(2)O6%,CO_(2)86%`B. Methane `20%,N_(2)O18%`C. `CFCs 14%,` Methane `20%`D. `CO_(2)40%, CFCs 30%` |
| Answer» Correct Answer - C | |
| 129. |
A major component of gobar gas isA. MethaneB. EthaneC. ButaneD. Ammonia |
| Answer» Correct Answer - A | |
| 130. |
The molar conductivity of a `0.5 mol//dm^(3)` solution of `AgNO_(3)` with electrolytic conductivity of `5.76 xx 10^(-3) S cm^(-1)` at `298 K` isA. 2.88 S `cm^(2)//mol`B. `11.52S" "cm^(-2)//mol`C. `0.086S" "cm^(2)//mol`D. `28.8S " "cm^(2)//mol` |
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Answer» Correct Answer - B `M=0.5M` `wedge_(m)=Kxx(1000)/(M)` `5.76xx10^(-3)xx(1000)/(0.5)` `=11.52S" "cm^(2)//mol` |
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| 131. |
At `25^(@)C` molar conductance of `0.1` molar aqueous solution of ammonium hydroxide is `9.54 ohm^(-1) cm^(2) mol^(-1)` and at infinte dilution its molar conductance is `238 ohm^(-1) cm^(2) mol^(-1)` The degree of ionisation of ammonium hydroxide at the same concentration and termperature isA. `2.080 %`B. `20.800%`C. `4.008%`D. `40.800%` |
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Answer» Correct Answer - C `alpha=(pi_(m))/(pi_(m)^(oo))=(9.54)/(238)=0.04008` `or 4.008%` |
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| 132. |
The correct statement regarding electrophile is:A. Electrophile is a negatively charged species and can form a bond by accepting a pair of electrons from a nucleophileB. Electrophile is a negatively charged species and can form a bond by accepting a pair of electrons from another electrophileC. Electrophiles are generally neutral species and can form a bond by accepting a pair of electrons from a nucleophileD. Electrophile can be either neutral or positively charged species and can form a bond by accepting a pair of electrons from a nucleophile |
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Answer» Correct Answer - D Fact. |
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| 133. |
If a diamagnetic substance is brought near north or south pole of a bar magnet, it isA. Attracted by both the polesB. Repelled by both the polesC. Repelled by the north pole and attracted by the south poleD. Attracted by the north pole and repelled by the south pole |
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Answer» Correct Answer - B As diamagnetic substances have negative intensity of magnetisation, they are weekly repelled by the external field. |
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| 134. |
A bar magnet having a magnetic moment of `2xx10^(4) JT^(-1)` is free to rotate in a horizontal plane. A horizontal magnetic field `B=6xx10^(-4)T` exists in the space. The work done in taking the magnet slowly from a direction parallel to the field to a direction `60^(@)` from the field isA. 2JB. 0.6JC. 12JD. 6J |
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Answer» Correct Answer - D `W=MB(cos theta_(1)-cos theta _(2))` `= 2 xx 10^(4) xx 6xx 10^(-4)( cos theta - cos 60^(@))` `=12xx(1)/(2)=6J` |
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| 135. |
A slab of stone of area of `0.36 m^(2)` and thickness `0.1 m` is exposed on the lower surface to steam at `100^(@)C`. A block of ice at `0^(@)C` rests on the upper surface of the slab. In one hour `4.8 kg` of ice is melted. The thermal conductivity of slab is (Given latent heat of fusion of ice `= 3.63 xx 10^(5) J kg^(-1)`)A. `1.29J//m//s//^(@)C`B. `2.05J//m//s//^(@)C`C. `1.02J//m//s//^(@)C`D. `1.24J//m//s//^(@)C` |
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Answer» Correct Answer - D `(dQ)/(dt)=(KA)/(L)(T_(1)-T_(2))` `Q=(KA)/(L)(T_(1)-T_(2))t` `Q=mL_(f)` `(KA)/(L)(T_(1)-T_(2)t=mL_(f)` `K=(mL_(f)(L))/(A(T_(1)-T_(2))t)` `K=(4.8xx3.36xx10^(5)xx0.1)/(0.36xx100xx3600)J//m//s//^(@)C` `=(4.8xx3.36)/(0.36xx36)` `1.24J//m//s//^(@)C` |
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| 136. |
A circular disc is to be made by using iron and aluminium, so that it acquires maximum moment of inertia about its geometrical axis. It is possible withA. Aluminium at interior and iron surround to itB. Iron at interior and aluminium surround to itC. Using iron and aluminium layers in alternate orderD. Sheet of iron is used at both external surface and aluminium sheet as internal layers |
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Answer» Correct Answer - A Density of iron is more than Aluminium |
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| 137. |
Which of the following ia s case of wrong matchingA. Micropropagation - In vitro production of plants in large numbersB. Callus - Unorganised mass of cells produced in tissue cultureC. Somatic hybridization - Fusion of two diverse cellsD. Vector DNA - site for tRNA synthesis |
| Answer» Correct Answer - D | |
| 138. |
Which one is a true statement regarding DNA polymerase used in PCRA. It is isolated from a virusB. It remains active at high temperatureC. It is used to ligate introduced DNA in recipient cellD. It serves as a selectable marker |
| Answer» Correct Answer - B | |
| 139. |
Which of the following oxide is most acidic in nature?A. BaOB. BeOC. MgOD. CaO |
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Answer» Correct Answer - B `{:(BeO lt MgO lt CaO lt BaO),(to),("Basic character increases"):}` So, the most acidic should be BeO, in fact, BeO is amphoteric oxide while other given oxides are basic. |
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| 140. |
The motion of a particle along a straight line is described by equation : `x = 8 + 12 t - t^3` where `x` is in metre and `t` in second. The retardation of the particle when its velocity becomes zero is.A. `6 ms^(-2)`B. `12 ms^(-2)`C. `24 ms^(-2)`D. zero |
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Answer» Correct Answer - B `x=8+12t-t^(3)` `v=(dx)/(dt)=12-3t^(2)` `a=(dv)/(dt)=-6t` putting v=0 `3t^(2)=12` t=2 sec `therefore a= -6xx2=-12 ms^(-2)` `therefore` retardation `=12 ms^(-2)` |
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| 141. |
The electric potential at a point (x,y,z) is given by `V=-s^(2)`A. `vecE=hati(2xy -z^(3))+hatj xy^(2)+hatk 3 z^(2)x `B. `vecE=hati(2xy +z^(3))+hatj x^(2)+hatk 3 xz^(2) `C. `vecE=hati 2xy + hatj (x^(2)+y^(2))+hatk(3xz-y^(2))`D. `vecE=hatiz + hatj xyz+ hatkz^(2)` |
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Answer» Correct Answer - B `V=-x^(2)y-xz^(3)+4` `vecE=-V=-(hati(delta)/(deltax)+hatj(delta)/(deltay)+hatk(delta)/(deltaz)) (-x^(2)-xz^(3)+4)` `=(2xy+z^(3))hati+x^(2)hatj + 3xz^(2) hatk` |
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| 142. |
A conducting circular loop is placed in a uniform magnetic field `0.04T` with its plane perpendicular to the magnetic field. The radius of the loop starts shrinking at `2mm//sec` . The induced emf in the loop when the radius is `2cm` isA. `1.6 pi mu v`B. `3.2 pi mu v`C. `4.8 pi mu v`D. `0.8 pi mu v` |
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Answer» Correct Answer - B `e=( d phi)/(dt)=(d)/(dt)(B pir^(2))` `=2 pi B(dr)/(dt)` `= 2 xx pi xx 2 xx 10^(-2) xx 4 xx 10^(-2) xx 2xx 10^(-3)` `=3.2 xx 10^(-6) pi Vol=3.2pi muV ` |
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| 143. |
Under isothermal condition, a gas at 300 K expands from 0.1 L to 0.25 L against a constant external pressure of 2 bar. The work done by the gas is : [Given that 1 L bar = 100 J]A. 30 JB. `-30 J`C. `5kJ`D. `25J` |
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Answer» Correct Answer - B A gas expands against a constant external pressure is irreversible process. The work done in irreversible process`=-P_(ext)triangleV` `=-P_(ext)(V_(2)-V_(1))` `=-2(0.25-0.1)` `=-2xx0.15` bar `-L//L`-bar `=-30xx100J` `=-30J` and work done by the gas is `+30J` |
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| 144. |
Which of the following is incorrect statement?A. `SnF_(4)` is ionic in natureB. `PbF_(4)` is covalent in naturalC. `SlCl_(4)` is easiliy hydrolysedD. `GeX_(4)(X=F,Cl,Br,l)` is more stable that `GeX_(2)` |
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Answer» Correct Answer - B `PbF_(4)` and `SnF_(4)` are exceptions they are ionic in nature. |
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| 145. |
Which of the following is an amphoteric hydroxideA. `Be(OH_(2)`B. `Sr(OH)_(2)`C. `Ca(OH)_(2)`D. `Mg(OH)_(2)` |
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Answer» Correct Answer - A `Be(OH)_(2)` is a amphoteric hydroxide [diagonal relationship with `Al(OH)_(3)]` |
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| 146. |
4d, 5p, 5f and 6p orbitals are arranged in the order of decreasing energy. The correct option is :A. 5f gt 6p gt 5p gt 4dB. 5f gt 6p gt 5p gt 4dC. 6p gt 5f gt 5p gt 4dD. 6p gt 5f gt 4d gt 5p |
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Answer» Correct Answer - B Energy `alpha` value (n+l) orbital (n+l) value 5f 5+3=8 6p 6+1=7 4d 4+2=6 5p 5+1=6 |
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| 147. |
Depletion layer has (for an unbiased PN junction) -A. ElectronsB. HolesC. Static ionsD. Neutral atoms |
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Answer» Correct Answer - C Unbiased PN junction Deplation layer `to` static ions |
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| 148. |
Two springs A and B `(K_A = 2 K_B)` are stretched by same suspended weights then ratio of workdone in stretching is -A. `1:2`B. `2:1`C. `1:1`D. `1:4` |
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Answer» Correct Answer - A `W=1/2Kx^2, F=-Kx` `W=1/2K.F^2/K^2=F^2/(2K)` `Wprop1/KimpliesW_A/W_B=K_B/K_A=K_B/(2K_B)=1/2` |
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| 149. |
A cylindrical tube (L = 125 cm) is resonant with a tuning fork of frequency 330 Hz. If it is filling by water then to get resonance again, minimum length of water column is (`V_air` = 330 m/s) -A. 50 cmB. 60 cmC. 25 cmD. 20 cm |
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Answer» Correct Answer - A `f=((2n-1)v)/(4l)` `l=((2n-1)v)/(4f)=((2n-1)xx330)/(4xx330)=((2n-1))/(4)` `l=1/4m, 3/4m = 25cm, 75cm.` `therefore` Minimum height of water column =125-75=50cm |
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| 150. |
One mole of an ideal gas goes from an initial state A to final state B via two processs : It first undergoes isothermal expansion from volume `V` to `3 V` and then its volume is reduced from `3 V` to `V` at constant pressure. The correct `P-V` diagram representing the two process in (figure)A. B. C. D. |
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Answer» Correct Answer - B For isothermal expansion P-V curve is rectangular hyperbola (clockwise curve) |
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