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.
| 601. |
the nutrient medium for beer isA. Barley maltB. Fermented riceC. Cashew-appleD. Potato |
| Answer» Correct Answer - A | |
| 602. |
Spirullina isA. biofertilizerB. biopesticideC. edible fungusD. single cell protein |
| Answer» Correct Answer - 4 | |
| 603. |
During lactic acid fermentation,………………A. `O_(2)` is used , `CO_(2)` is liberatedB. `O_(2)` is not used , `CO_(2)` is not liberatedC. `O_(2)` is used, `CO_(2)` is not liberatedD. Neither `O_(2)` is used nor `CO_(2)` liberated |
| Answer» Correct Answer - D | |
| 604. |
Which one of the following alcoholic drinks is produced without distillation ?A. WineB. WhiskyC. RumD. Brandy |
| Answer» Correct Answer - B | |
| 605. |
Juvenile hormone causesA. Early sexual maturityB. Late sexual maturityC. Completion of larval stagesD. Development of giant larva without ability to undergo maturation |
| Answer» Correct Answer - D | |
| 606. |
Substrate for alcohol formation is :A. MaizeB. BajraC. SucroseD. Galactose |
| Answer» Correct Answer - C | |
| 607. |
which of the following plant is used as green manure ?A. Crotalaria junceaB. Vigna sinensisC. BarseemD. All the above |
| Answer» Correct Answer - D | |
| 608. |
the first inorganic pesticiede to be used commercially wasA. Bordeaux mixtureB. Burgandy mixtureC. DDTD. 2-4D |
| Answer» Correct Answer - A | |
| 609. |
which of the following statement is incorrect about DDT?A. DDT is a pesticide , which is an organchlorine .B. It is lipophilic and non-Biodegadable .C. Milk is a good carrier of DDTD. DDT does not undergo bioconcentration when it enters in food chain . |
| Answer» Correct Answer - D | |
| 610. |
the biocincentration of DDT in the body fat of indains isA. 18-36ppmB. 5-10ppmC. 13-31ppmD. 2-5ppm |
| Answer» Correct Answer - C | |
| 611. |
DDT is a /anA. OrganochlorineB. OrganophoshateC. CarbamateD. pyrethroid |
| Answer» Correct Answer - A | |
| 612. |
Biopesticides includeA. Only BioinsevticideB. Only bioherbicideC. Bioinsecticde and bioherbicideD. Bioherbicide ,bioinsecticide ,and biofertilizers |
| Answer» Correct Answer - C | |
| 613. |
which of the following pairs serve as biofertilizers?A. Albugo and lichenB. Frankia and NostocC. Pseudomans and E.ColiD. Spiroyra and mucor |
| Answer» Correct Answer - B | |
| 614. |
Which of the following act as biofertilizersA. Blue-green algaeB. Green algaeC. Yellow algaeD. Red algae |
| Answer» Correct Answer - A | |
| 615. |
The biofertilizers areA. Anabaena and AzollaB. Cow dung, manure and farmyard wasteC. Quick growing crop ploughed under soilD. None of these |
| Answer» Correct Answer - 1 | |
| 616. |
As we are going to face a great crists of fossil fuel in near future, suggest an ecofriendly and pollution free alternative source of energy for rural areas which is dependent on microbial activity. |
| Answer» setting up of a gobar gas plant or biogas plant. | |
| 617. |
Some blue green algae are used as biofertilizers because theyA. fix nitrogenB. secrete mucilageC. perform photosynthesisD. grow everywhere |
| Answer» Correct Answer - 1 | |
| 618. |
Recommend the specific biofertillizer for the following: Give reason for you recommendations. (i) Paddy field (ii) Wheat crop (iii) Crop crop. |
|
Answer» (i) Paddy field: Paddy crop is grown in field where aquatic condition persists for several weeks . Under such conditions, the best biofertillizer is Azolla-Anabaena symbiosis. It is usually inoculated at the rate of 300-500kg fresh weight per hectare of land about a mouth before rice planation. (ii) Wheat field: Wheat is grows in terrestrial condition Thus, the best biofertillizer is free-living nitrogen fixing bacteria-Azotobacter chroococcum and Azospirillum lipoferum. Azospirillum grows is Bacillus cereus and Azotobacter chroococcum. These are free living `N_(2)` fixing bacteria and enhance the fertility of soil. |
|
| 619. |
Composited manure is formed fromA. Rotted vegetable and animal refuseB. Farmyard manure and green manureC. Farm refuse and household refuseD. Organic wastes from which biogas has been extracted |
| Answer» Correct Answer - A | |
| 620. |
Mycorrhiza is a symbiotic association betweenA. Bacteria and fungiB. Algae and fungiC. Fungi and roots of higher plantsD. Blue green algae and roots of higher plants |
| Answer» Correct Answer - C | |
| 621. |
Enzyme which has the fibrinolytic effect isA. proteaseB. amylaseC. lipaseD. streptokinase |
| Answer» Correct Answer - D | |
| 622. |
Select the correct option to fill up the blanks. (i) ___________are used in detergent formulations and are helpful in removing oily stains from the laundry. (ii) _____________are ripened by growing Penicillium roqueforti on them. (iii) ___________are produced without distillation whereas,__________are produced by distillation of the fermented broth. (iv) ___________antibiotic was used to teat American soldiers wounded in world war II. (v) _______is also called as Kusht rog.A. (i) Lipases, (ii) Camembert cheese, (iii) Whisky and rum, wine and beer, (iv) Penicillin, (v) LeprosyB. (i) Lipases, (ii) Roquefort cheese, (iii) Wine and beer, whisky and rum, (iv) Penicillin, (v) LeprosyC. (i) Streptokinases, (ii) Roquefort cheese, (iii) Wine and beer, whisky and rum, (iv) Streptomycin, (v) Whooping coughD. (i) Amylases, (ii) Swiss cheese, (iii) Whisky and rum, wine and beer, (iv) Penicllin, (v) Diphtheria |
| Answer» Correct Answer - B | |
| 623. |
(A) : Cancer cells divide giving rise to masses of cells called neoplasm. (R) : These cells fail to exhibit contact inhibition.A. If both (A) and (R) are true and (R) is the correct explanation of (A).B. If both (A) and (R) are true but (R) is not the correct explanation of (A).C. If (A) is true but (R) is false.D. If both (A) and (R) are false. |
| Answer» Correct Answer - A | |
| 624. |
During lactic acid fermentation,………………A. `O_(2)` is used, `CO_(2)` is liberatedB. Neither `O_(2)` is used for nor `CO_(2)` liberatedC. `O_(2)` is not used, `CO_(2)` is liberatedD. `O_(2)` is used, `CO_(2)` is not liberated |
| Answer» Correct Answer - B | |
| 625. |
which bacteria is used in Bioremidiation process ?A. Rhizobium sp.B. Pseudomonas puditaC. Bacillus licheniformisD. Streptococci |
| Answer» Correct Answer - B | |
| 626. |
Microbes are present everywhere - in soil, water, air, inside our bodies and that of other plants and animals. They are present even at sites where no othe life-form could possibly exist, such asA. Deep inside the geysers (thermal vents) where the temperature may be high as `100^(@)C`B. Deep in the soil, and under the layers of snow several meters thickC. In highly acidic environmentD. All of the above |
| Answer» Correct Answer - D | |
| 627. |
which of the following is not used in the treatement of polluted water ?A. Activated carbonB. Trikling filter methodC. cyclone collectorD. Activated sludge method |
| Answer» Correct Answer - C | |
| 628. |
Citric acid is obtained fromA. Aspergillus nigerB. Rhizobium nigricansC. Penicillium citrinumD. Lactobacillus vulgaricus |
| Answer» Correct Answer - 1 | |
| 629. |
Antibiotic obtained from lichens isA. NeomycinB. Usnic acidC. PolymixinD. Viridin |
| Answer» Correct Answer - B | |
| 630. |
Eutrophiication in water bodies leads to High DOA. high DOB. Low BODC. Low DOD. Optimum dissolved oxygen |
| Answer» Correct Answer - C | |
| 631. |
citric acid is obtained from all, exceptA. Aspergillus nigerB. MucorC. YeastD. Mortierlla |
| Answer» Correct Answer - D | |
| 632. |
Which of the following processes are involved in primary treatemnt of sewage ?A. FiltrationB. SedimentationC. BiodegraditionD. Both (b) and (c ) |
| Answer» Correct Answer - D | |
| 633. |
in which stage of sewage treatment is desallination and chlorination of water done ?A. Primary tratmentB. secondary treatmentC. Tertiary treatmentD. Both (1) and (2) |
| Answer» Correct Answer - C | |
| 634. |
Biogas containsA. `30-40% ` methaneB. `50-70% CO_(2)`C. `50-70% `methaneD. `20%` methane |
| Answer» Correct Answer - C | |
| 635. |
which of the following is not a symbiotic nitrogen fixing bacterium ?A. ClostridiumB. Rhoizobium leguminosarumC. FrankiaD. Mycobacterium |
| Answer» Correct Answer - 1 | |
| 636. |
Treatment of water is done by the …………. Naturally present in sewage.A. heterotrophic microbesB. autotrophic microbesC. autotrophic plantsD. Both (b) and (c ) |
| Answer» Correct Answer - A | |
| 637. |
The bacterium responsible for biogas production are collectively calledA. MethonogensB. ThermoacidophilesC. HalophilesD. Cyanobacterium |
| Answer» Correct Answer - 1 | |
| 638. |
During waste water treatment, trickling filter is used for :A. primary treatmentB. secondary aerobic tretmentC. secondary anacrobic treatmentD. tertiary treatment |
| Answer» Correct Answer - B | |
| 639. |
_________ are produced by yeast and act by competitively inhibiting the enzyme responsible for synthesis of cholesterol.A. Cyclosporin-AB. PenicillinC. StatinsD. Alcohol |
| Answer» Correct Answer - 3 | |
| 640. |
Treatment of waste-water is done by theA. Photoautotrophic microbes, naturally present in sewageB. Chemoautotrophic microbes, naturally present in sewageC. Heterotrophic microbes naturally present in sewageD. Heterotrophic microbes inoculated in the sewage from outside only |
| Answer» Correct Answer - 3 | |
| 641. |
BOD is_____in polluted water and ________in potable water.A. more, lessB. less, moreC. less in bothD. medium in both |
| Answer» Correct Answer - A | |
| 642. |
which one of the following is not a biofertillizer ?A. MycorrhizaB. AgrobacteriumC. RhizobiumD. Nostoc |
| Answer» Correct Answer - B | |
| 643. |
which one of the following is not used in orgaic farmingA. GlomusB. EarthwormC. OscilatoriaD. Snail |
| Answer» Correct Answer - D | |
| 644. |
A cmmon biocontrol agent for the control of plant diseases isA. BaculoviusB. Bacillus thuringiensisC. GlomusD. Trichoderma |
| Answer» Correct Answer - D | |
| 645. |
which one of the following helps in asbsorption of phosphorus from soil by plants?A. GlomusB. RhizobiumC. FrankiaD. Anabaena |
| Answer» Correct Answer - 1 | |
| 646. |
which one of the following is not a biofertillizer ?A. MycorrhizaB. AgrobacteriumC. RhizobiumD. Nostoc |
| Answer» Correct Answer - B | |
| 647. |
the common nitrogen - fixer in paddy fields isA. RhizobiumB. AzospirillumC. OscillatoriaD. Frankia |
| Answer» Correct Answer - B | |
| 648. |
A cmmon biocontrol agent for the control of plant diseases isA. BaculoviusB. Bacillus thuringiensisC. GlomusD. Trichoderma |
| Answer» Correct Answer - D | |
| 649. |
which one of the following helps in asbsorption of phosphorus from soil by plants?A. AnebaeneB. GluomusC. Rhizbium , other nitrogen -fixing bacteria ,NPv, and mycorrhizaD. Nostoc |
| Answer» Correct Answer - B | |
| 650. |
Biochemical oxygeb demand (BOD) in a river waterA. has no relatiship with concentration of oxygen in the waterB. gives a measure of Salmonella in the waterC. increases when sewage gets mixed with river waterD. remains unchanged when algal bloom occurs. |
| Answer» Correct Answer - C | |