InterviewSolution
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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.
| 1. |
Mucosal epithelium lining of stomach is protected from concentrated hydrochloric acid byA. Mucus and bicarbonatesB. PeptidasesC. LipasesD. Carbonates and sodium ions. |
| Answer» Correct Answer - A | |
| 2. |
Iron, once dipped in concentrated `H_(2)SO_(4)`, does not displace copper from copper sulphate solution, becauseA. it is less reactive than copperB. a layer of sulphate is deposited on itC. a layer of oxide is deposited on itD. none of the above |
| Answer» Correct Answer - C | |
| 3. |
On the basis of detail given about two measuring instruments, select the corect statement (i) vernier calliper having main scale of divison = 0.05 cm and vernier scale divison = `2.45/50`cm screw gauge having pitch 0.5 mmand its circular scale divison measures 0.1 mmA. Both the instruments have same least countB. Least count of screw gauge is lesser than that of vernier callipersC. Both the instruments have same least count but screw gauge is more preciseD. Both the instruments have different least count and screw gauge is more precise |
| Answer» Correct Answer - 1 | |
| 4. |
A student performed the experiment of determination of focal length of a concave mirror by `u-v` method using an optical bench of length 1.5 meter. The focal length of the mirror used is 24 cm. The maximum error in the location of the image can be 0.2 cm. The 5 sets of `(u,v)` values recorded by the student (in cm) are: `(42,56),(48,48),(60,40),(66,33),(78,39)` . The data set (s) that cannot come from experiment and is (are) incorrectly recorded, is (are)A. (42,56)B. (48,48)C. (66,32)D. (78,39) |
| Answer» Correct Answer - D | |
| 5. |
Humus is good for plant growth becauseA. It improves physical condition of soilB. It makes the soil porousC. It increases water holding and aeration of soilD. All the above |
| Answer» Correct Answer - D | |
| 6. |
An `(alpha)`-particle and a proton are both simultaneously projected in opposite direction into a region of constant magnetic field perpendicular to the direction of the field. After some time it is found that the velocity of the `(alpha)`-particle has changed in a direction by `45^(@)`. Then at this time, the angle between velocity vectors of `(alpha)`-particle and proton isA. `90^(@)`B. `45^(@)`C. `45^(@)+90^(@)`D. `((45^(@)+90^(@)))/(2)` |
| Answer» Correct Answer - C | |
| 7. |
The plane face of a plano convex lens is silvered.If `mu`be the refrative index and R, the radius of curvature of curved suraface, then system will behave like a concave mirror of curvatureA. `muR`B. `(R)/((mu-1))`C. `(R^(2))/(mu)`D. `[((mu+1))/((mu-1))]R` |
| Answer» Correct Answer - B | |
| 8. |
Two organ pipes are emitting their fundamental notes, when each closed at end, give 5 beat/s if their foundamental frequencies are 250 Hz and 255 Hz. Then find the ratio of their lenghts.A. `(49)/(50)`B. `(49)/(51)`C. `(50)/(51)`D. `(51)/(50)` |
| Answer» Correct Answer - C | |
| 9. |
Which of the following bonds are present in a DNA double helix ? a. Hydrogen bond b. Peptide bond c. Glycosidic bond d. Phosphodiester bondA. a,b and dB. a,c and dC. c and d onlyD. a and b |
| Answer» Correct Answer - C | |
| 10. |
Assertion : Enzymes lower the activation energy. Reason : A substrate molecule can be acted upon by a particular enzyme.A. If both assertion and reason are true and the reason is the correct explanation of the assertionB. If both assertion and reason are true but reason is not the correct explanation of the assertionC. If assertion is true but reason is falseD. If both assertion and reason are false |
| Answer» Correct Answer - B | |
| 11. |
A spring of spring constant 200 N `m^(-1)` has a block of mass 1 kg hanging at its one end and from other end spring is attached to a ceiling of an elevator. The elevator rising upwards with an acceleration of g/3. when acceleration is suddenly cease, then what should be the angular frequency and elongation during the time when the elevator is acceleration ? A. `14.14"rad "s^(-1),0.07m`B. `13"rad "s^(-1),0.1m`C. `14"rad "s^(-1),0.05m`D. `10"rad "s^(-1),0.07m` |
| Answer» Correct Answer - A | |
| 12. |
The graph between angle of deviation `(delta)` and angle of incidence (i) for a triangular prism is represented byA. B. C. D. |
| Answer» Correct Answer - C | |
| 13. |
Select the incorrect statement.A. Lemur and spotted cuscus shows convergent evolut ion.B. Icthyosaurs evolved around 200 mya.C. Homo sapiens arose in east and central Asia.D. First human like being hominid is Homo habilis. |
| Answer» Correct Answer - C | |
| 14. |
Maximum amount of carbon dioxide is transported in the blood as:A. Bound to hemoglobinB. As bicarbonateC. As bis-carbonateD. Dissolved carbon dioxide |
| Answer» Correct Answer - B | |
| 15. |
The kinetic energy K of a particle moving along a circle of radius R depends on the distance covered a as `K=as^(2)`. The force acting on the particle isA. `2as^(2)//R`B. `2as[1+(s^(2)//R^(2))]^(1//2)`C. `2as`D. `2aR^(2)//s` |
| Answer» Correct Answer - B | |
| 16. |
In human body, the mesozoites of the malarial pathogen divide asexually insideA. Thrombocytes and liver cellsB. Red blood cellsC. White blood cellsD. Liver cells |
| Answer» Correct Answer - A | |
| 17. |
A man having the genotype EEFfGgHH can produce P number of genetically different sperms, and a woman of genotype liLLMnNn can generate Q number of genetically different eggs. Determine the values P and QA. P—4, Q—4B. P-4, Q—8C. P-8,Q-4D. P-8,Q-8 |
| Answer» Correct Answer - B | |
| 18. |
Which of the following is vitamin-A enriched?A. Bitter gourd and carrotsB. Bathua and mustardC. Tomato and carrotsD. Spinach and pumpkins |
| Answer» Correct Answer - D | |
| 19. |
Which of the following statements is correct?A. Partheniuim is an endemic species of our country.B. African catfish is not a threat to indigenous catfishes.C. Steller’s sea cow is an extinct animal.D. Lantana is popularly known as carrot grass. |
| Answer» Correct Answer - C | |
| 20. |
Lining of trachea is made up ofA. Pseudostratified ciliated columnar epitheliumB. Stratified ciliated columnar epitheliumC. Pseudotratjfied ciliated cuboidal epitheliumD. Stratified ciliated glandular epithelium |
| Answer» Correct Answer - A | |
| 21. |
Monoclinic crystal has dimensionA. `a ne b ne c, alpha=gamma=90^(@),betane90^(@)`B. `a=b=c,alpha=beta=gamma=90^(@)`C. `a=b=c,alpha=beta=90^(@),gamma=120^(@)`D. `anebnec,alpha=beta=gamma=120^(@)` |
| Answer» Correct Answer - A | |
| 22. |
Which one of the following statement is correct for `N_(3)^(-)`?A. It has non-linear structureB. It is not a pseudo halogenC. The formal oxidation state of nitrogen in this anion is +1.D. it is isoelectronic with `N_(2)O`. |
| Answer» Correct Answer - D | |
| 23. |
If the `DeltaG` of a cell reaction `AgCl+e^(-)toAg+Cl^(-)` is -21.20 kJ, the standard emf of cell isA. `0.239V`B. `0.220V`C. `-0.320V`D. `-0.110V` |
| Answer» Correct Answer - B | |
| 24. |
The liquefaction behaviour of temporary gases like `CO_(2)` approaches that of permanent gases like `N_(2),O_(2)` etc, as we go toA. below critical temperatureB. above critical temperatureC. above absolute zeroD. below absolute zero |
| Answer» Correct Answer - B | |
| 25. |
In cockroach, wings arises fromA. One pair each from prothorax and metathoraxB. One pair each from mesothorax and metathoraxC. One pair from joint of prothorax and mesothorax, and one pair from joint of mesothorax and metathoraxD. One pair each from prothorax and mesothorax |
| Answer» Correct Answer - B | |
| 26. |
Which of the following control the function Sertoli cells?A. Causingthe blood testis barrierB. Directed movement of developing stages of spermatozoaC. CapacitationD. Secretion of inhibin |
| Answer» Correct Answer - C | |
| 27. |
Which one of the following synovial joints is a characteristic joint between atlas and axis?A. Hinge jointB. Pivot jointC. Gliding jointD. Ball and socket joint |
| Answer» Correct Answer - B | |
| 28. |
Which of the following is not exhibited by cancer cells?A. Escape from immune systemB. MetastasisC. Uncontrolled cell divisionD. Contact inhibition |
| Answer» Correct Answer - D | |
| 29. |
Which is false ?A. Blood from right side of heart is carried to lungs by pulmonary arteryB. Pleura is double covering of kidneyC. Pancreas in both exocrine and endocrine glandD. Scurvy is due to vitamin C deficiency |
| Answer» Correct Answer - B | |
| 30. |
Choose the correct statementA. Both phenotypic and genotypic ratios are `1 : 2: 1` in incomplete dominanceB. Both heterozygous and homozygous recessive organisms have same phenotype in mendelian crossC. Genes are alternate forms of an alleleD. Multiple alleles occupy multiple positions in a chromosome pair |
| Answer» Correct Answer - A | |
| 31. |
Find the correct labelling : A. `iv-i,ii-F_(o),i-b and c`B. `iii-F_(1),i-b and c,v-ii`C. `i-b & f, ii-F_(1), iv-ii`D. `ii-F_(o),iv-ii,i-b and f` |
| Answer» Correct Answer - D | |
| 32. |
Find the correct labelling : A. a-Reduction, b-Oxidation, c-RegenerationB. a-Regeneration, b-Reduction, c-CarboxylationC. a-Carboxylation, b-Reduction, c-RegenerationD. a-Reduction, b-Carboxylation, c-Regeneration |
| Answer» Correct Answer - D | |
| 33. |
Choose the correct statementA. Bacteriophages are viruses that infect bacteriaB. Bacteriophages are bacteria used in the production of antibioticsC. Bacteriophages are viruses that have both RNA and DNAD. Bacteriophages and bacteria that engulf viruses |
| Answer» Correct Answer - A | |
| 34. |
The given figure represents A. Prophase IB. Prophase IIC. Prophase of mitosisD. Prophase and metaphase of mitosis |
| Answer» Correct Answer - A | |
| 35. |
A mutation that inactivates the regulatory gene of a repressible operon in an E. coli cell would result inA. Complete inhibition of transcription of the structural gene controlled by that regulatorB. Irresversible binding of the repressor to the operatorC. Continuous translation of the mRNA transcribedD. Continuous transcription of the structural gene controlled by that regulator |
| Answer» Correct Answer - C | |
| 36. |
A spherical liquid drop of radius `R` is divided into eight equal droplets. If the surface tension is `T`, then the work done in this process will beA. `2piR^(2)T`B. `3piR^(2)T`C. `4piR^(2)T`D. `2piRT^(2)` |
| Answer» Correct Answer - C | |
| 37. |
Inside a bar magnetic the magnetic field linesA. do not existB. depend upon area of cross-section of the magneticC. are from S pole to N pole of the magnetD. are from N pole to S pole of the magnet |
| Answer» Correct Answer - C | |
| 38. |
A small bar magnet has a magnetic moment `1.2 A-m^(2)`. The magnetic field at a distance `0.1 m` on its axis will be: `(mu_(0)=4pixx10^(-7)T-m//A)`A. `2.4xx10^(5)T`B. `1.2xx10^(4)T`C. `2.4xx10^(-5)`TD. `2.4xx10^(-4)T` |
| Answer» Correct Answer - D | |
| 39. |
A bar is subjected to equal and oppsite forces as shown in figure. PQ is a plane makin an angle `theta` with the cross-sectionn of the bar. If the area of cross-section be a, then what is the tensile stress on `PQ`?A. `F//a`B. `Fcostheta//a`C. `Fcos^(2)theta//a`D. `F//a" "costheta` |
| Answer» Correct Answer - C | |
| 40. |
Grignard reagent should be prepared under anhydrous conditions becauseA. it is highly reactive towards protonic substancesB. it reacts with etherC. both (a) and (b)D. none of the above |
| Answer» Correct Answer - A | |
| 41. |
In polymerisation, which may act as initiator?A. Azo iso-butyronitrileB. chloroformC. chlorideD. hydroquinone |
| Answer» Correct Answer - A | |
| 42. |
The fragrnance of flower is due to the presence of some steam volatile organic compounds called essential oils. These are generally insoluble in water at room temperature but are miscrible with water vapour in vapour phase. A suitable method for the extraction of these oils from the flower isA. distillationB. crystallisationC. distillation under reduced pressureD. steam distillation |
| Answer» Correct Answer - D | |
| 43. |
Among the trihalides of nitrogen, which is the least basic ?A. `NF_(3)`B. `NCl_(3)`C. `NBr_(3)`D. `NI_(3)` |
| Answer» Correct Answer - A | |
| 44. |
Catalyst used in the preparation of methyl alcohol from water gas isA. `CuO+ZnO+NiO`B. `CuO+ZnO+Cr_(2)O_(3)`C. `Al_(2)O_(3)`D. `CuO+Fe_(2)O_(3)` |
| Answer» Correct Answer - B | |
| 45. |
The disaccharide present in milk isA. cellobioseB. sucroseC. lactoseD. maltose |
| Answer» Correct Answer - C | |
| 46. |
For the cell given, below `Zn|Zn^(2)||Cu^(2+)|Cu,(E_(cell)-E_(cell)^(@))` is -0.12 V. it will be whenA. `[Zn^(2+)]//[Cu^(2+)]=10^(2)`B. `[Zn^(2+)]//[Cu^(2+)]=10^(-2)`C. `[Zn^(2+)]//[Cu^(2+)]=10^(4)`D. `[Zn^(2+)]//[Cu^(2+)]=10^(-4)` |
| Answer» Correct Answer - C | |
| 47. |
A body of mass m is movinng in a circlee off radius r with a constant speed v. the work done by the centripetal force in moving the body over half the circumference of the circle isA. `mv^(2)//r`B. zeroC. `mv^(2)//r`D. `r^(2)//mv^(2)` |
| Answer» Correct Answer - B | |
| 48. |
Which of the following is natural antioxidant?A. Propyl gallateB. Butylated hydroxy anisoleC. Butylated hydroxy tolueneD. Ascorbic acid |
| Answer» Correct Answer - D | |
| 49. |
The conjugate base of `(CH_(2))_(2)NH_(2)^(o+)` isA. `(CH_(3))_(3)N`B. `(CH_(3))_(2)NH`C. `(CH_(3))_(2)N^(-)`D. `(CH_(3))_(2)N^(o+)` |
| Answer» Correct Answer - B | |
| 50. |
On passing phenol vapours over hot Zn dust, the product formed isA. benzeneB. benzaldehydeC. benzoic acidD. benzophenone |
| Answer» Correct Answer - A | |