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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your Science knowledge and support exam preparation. Choose a topic below to get started.
| 1101. |
7. Give short answers:a. Define the term sewage |
| Answer» <p>Sewage(ordomestic wastewaterormunicipal wastewater) is a type ofwastewaterthat is produced by acommunityof people. It is characterized byvolumeorrate of flow, physical condition, chemical and toxic constituents, and itsbacteriologicstatus (which organisms it contains and in what quantities). It consists mostly ofgreywater(from sinks, tubs, showers, dishwashers, and clothes washers),blackwater(the water used to flushtoilets, combined with thehuman wastethat it flushes away); soaps and detergents; andtoilet paper(less so in regions wherebidetsare widely used instead of paper).</p> | |
| 1102. |
Answer the following questions in briet.1. Why should we segregate different types of wastes? |
| Answer» <p>Segregation of waste is important for properly disposing of the vast amount of garbage our society produces in an environmentally conscious manner. Different components of waste have very different properties, and grouping them by type allows for proper processing or storage.</p> | |
| 1103. |
DateExt. NoPage No.as lS cemple tely the vesel in which i is Kepe |
| Answer» <p>The force of attraction between particles of gas is negligible. Because of this, particles of gas move in all directions. Thus, a gas fills the vessel completely in which it is kept.</p> | |
| 1104. |
Explain two types of transformer. |
| Answer» <p>Ans :- Step-Up Transformer</p><p>As the name states that, the secondary voltage is stepped up with a ratio compared to primary voltage. This can be achieved by increasing the number of windings in the secondary than the primary windings as shown in the figure. In power plant, this transformer is used as connecting transformer of the generator to the grid.</p><p>Step-Down Transformer</p><p>It used to step down the voltage level from lower to higher level at secondary side as shown below so that it is called as astep-down transformer. The winding turns more on the primary side than the secondary side.</p> | |
| 1105. |
Explain two types of transformer |
| Answer» <p>Step up and Step down Transformer</p><p>This type of transformer is categorized on the basis of a number of turns in the primary and secondary windings and the induced emf.</p><p>Step up transformer transforms a low voltage, high current AC into a high voltage, low current AC system In this type of transformer the number of turns in the secondary winding is greater than the number of turns in the primary winding. If (V2> V1) the voltage is raised on the output side and is known as Step up transformer</p><p>Step down transformer converts a high primary voltage associated with the low current into a low voltage, high current. With this type of transformer, the number of turns in the primary winding is greater than the number of turns in the secondary winding. If (V2< V1) the voltage level is lowered on the output side and is known as Step down transformer.</p> | |
| 1106. |
explain two types of transformer |
| Answer» <p>Ans :- 1 - Step-Up Transformer</p><p>As the name states that, the secondary voltage is stepped up with a ratio compared to primary voltage. This can be achieved by increasing the number of windings in the secondary than the primary windings as shown in the figure. In power plant, this transformer is used as connecting transformer of the generator to the grid.</p><p>2 - Step-Down Transformer</p><p>It used to step down the voltage level from lower to higher level at secondary side as shown below so that it is called as astep-down transformer. The winding turns more on the primary side than the secondary side.</p> | |
| 1107. |
nth term.17. A man starts repaying a loan as first instalment of Rs. 100. If he increases theinstalment by Rs. 5 every month, what amount he will pay in the 30thinstalment? |
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| 1108. |
name an energy carbohydrate stored in large quantities in liver and muscle cells |
| Answer» <p>The answer is Glycogen</p> <p> the answer is glycogen</p> <p>glycogen is an energy rich carbohydrate stored in large quantities in liver and muscle cells </p> <p>Glycogen is an energy rich carbohydrate stored in large quantities in liver and muscles cell.</p><p>Hope it helps</p> | |
| 1109. |
D)alltheabove19. A tennis ball of mass 60 g is thrown up with a velocity of 20 m st What force is exerted on this ball toachieve this velocity over 0.2 s when it is hung up?(A) 2 N(B) 4 N(C) 6 N(D) 8 N |
| Answer» <p>mass is 60gvelocity is 20 m/shung in air 0.2sso now accelerate a=20/0.2=100F=m*a=100*60=6N</p> | |
| 1110. |
2) Explain types of bases with the example. |
| Answer» <p>For bases, the concentration of OH–must exceed the concentration of H3O+in the solution. This imbalance can be created in two different ways.</p> | |
| 1111. |
2.Name two types of charges |
| Answer» <p>1. Electron and 2. Proton</p> | |
| 1112. |
9. Certain unripe, fruits like grapps, plums apple contain |
| Answer» <p> certain fruits like grapes plums and apple contains citrus acid and vitamin c</p> <p>vitamin C is the correct answer of the given question</p> <p> vitamin c is the answer of the following</p> <p>vitamin c is the correct answer </p> | |
| 1113. |
7. Radha observed a plant in rainy seasonon the compound wall of her school. Theplant did not have true roots but rootlikestructures were present. Vascular tissuewas absent. To which group the plantmay belong? |
| Answer» <p>germinating plant is the plant </p> <p> I think climber's will grow on wall</p> <p>the plant belong to bryophyta like funaria.</p> <p>the plant belong to bruophyta like funaria</p> | |
| 1114. |
Give an account of water vascular svstem. |
| Answer» <p>Water vascular system. The water vascular system is a hydraulic system used by echinoderms, such as sea stars and sea urchins, for locomotion, food and waste transportation, and respiration. The system is composed of canals connecting numerous tube feet.</p> <p>The water vascular system is a hydraulic system used by echinoderms, such as sea stars and sea urchins, for locomotion, food and waste transportation, and respiration. The system is composed of canals connecting numerous tube feet. Echinoderms move by alternately contracting muscles that force water into the tube feet, causing them to extend and push against the ground, then relaxing to allow the feet to retract.</p><p>The exact structure of the system varies somewhat between the five classes of echinoderm. The system is part of the coelomic cavities of echinoderms, together with the haemal coelom (or haemal system), perivisceral coelom, gonadal coelom and perihaemal coelom.</p> | |
| 1115. |
Q.7. "What is S.I. system of units? Explain itsneedWrite a short note on S.I. units.OR |
| Answer» <p>The International System of Units is a system of measurement based on 7 base units: the metre (length), kilogram (mass), second (time), ampere (electric current), Kelvin (temperature), mole (quantity), and candela (brightness). These base units can be used in combination with each other.</p><p>It is required to standardized measuring of various types of things mentioned above. </p> | |
| 1116. |
where does the sun rise set |
| Answer» <p>The sun rises in the east</p><p>The sun sets in west</p> | |
| 1117. |
6. A 10 C fall in temperature is equal toa. 10℉ fall in temperature.c. 10°F rise in temperature.18 °F fall in temperatured. 18°F rise in temperature.rine expansion on heating. Expansion in which of |
| Answer» <p>option b. </p> | |
| 1118. |
7.Would the bulb glow in the circutt shown in Fig. 12.15?Fig. 12.185 |
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| 1119. |
3. Explain why the bulb would not glow in thearrangement shown in Fig. 12.13. |
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| 1120. |
Explalain why the bulb would not glow in thearrangement shown in Fig. 12.13 |
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| 1121. |
3. Explain why the bulb would not glow in thearrangement shown in Fig. 12.13 |
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| 1122. |
TEC: _'u,’ mm W’DW किक रण गये मोर है<= |
| Answer» <p>The unite digit is m per square</p> | |
| 1123. |
-Scope ofeconomiesforengineering,4 |
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| 1124. |
Consider the Atwood machine of the previous problem.The larger mass is stopped for a moment 2.0 s after thesystem is set into motion. Find the time elapsed beforethe string is tight again. |
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| 1125. |
Disa a labelled rag diagsarm showing xe fractionof monachramatia light through pmem |
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| 1126. |
2. Write down the differences between the three states of matter.Exploration ZonetoPronerties os |
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| 1127. |
A body moves along the curved path of a quartercircle. Calculate the ratio of distance to displacement: |
| Answer» <p>Body moves in quarter part of circle.So, distance will be quarter of circumference of circle=2πr/4=πr/2Displacement will be shortest distance .From the figure : AB is the Displacement .It forms a right angle traingle.AB² =displacement=Hypotenuse=√(r²+r²)=√2r²=r√2</p><p>Ratio of distance to displacement =πr/2xr√2=π/2√2=π/2√2=22/√2x(2x7)=11/√2x7</p><p>∴ Ratio of Distance to displacement is 11 :√2(7)</p> <p>thanks </p> | |
| 1128. |
1. Rats are responsible for spreading the disease known as2 The poison injected by a snake is called3. Malaria is caused by a protozoan caied |
| Answer» <p>1. plague2. venom3. Plasmodium</p> | |
| 1129. |
How will you separate iodine from a mixture of iodine and common salt? |
| Answer» <p>Toseparatethe salt andiodine, place both in a beaker and place a watch glass or evaporating dish on top of the beaker. Put some ice in the top of the evaporating dish. Now gently warm the bottom of the beaker and theiodinewill sublime into a gas.</p> | |
| 1130. |
0.2 An iron nail is kept in each of the following liquids. In wt in each of the following liquids. In which case would it lose its shine and appearINCERT Exemplar]dull ?(a) MĂźstard oil(b) Soft drink(c) Coconut oil(d) Kerosene(1 |
| Answer» <p>In soft drinks iron nail will look dull and lose its shining.An iron nail kept in soft drink would lose its shine and appear dull became soft drink contains carbonic acid which reacts with iron nail, so it gives dull appearance. Iron nail has no reaction with mustard oil, coconut oil and kerosene, so does not lose its shine, when kept in these solutions.</p> <p>proper option</p> <p>b.. soft drink </p><p> </p> <p>Thanks </p> <p>soft drink is the correct answer </p> | |
| 1131. |
Ans.Q.2 An iron nail is kept in each of the following liquids. In which case would it lose its shine and appearINCERT Exemplar]dull ?(e) Mustard ofl(b) Soft drink(c) Coconut oil(d) KeroseneAns.9eae..R |
| Answer» <p> In soft drinks iron nail will look dull and lose its shining.An iron nail kept in soft drink would lose its shine and appear dull became soft drink contains carbonic acid which reacts with iron nail, so it gives dull appearance. Iron nail has no reaction with mustard oil, coconut oil and kerosene, so does not lose its shine, when kept in these solutions.</p> | |
| 1132. |
iuy inregularly: It causes intestinal disorders.iou1. Four alternatives are given under eincomplete statement. Choose the corrand put a tick () mark against it:1. The structure of diamond isecta) hexagonalc) soccer ballb) tetrahedrald) amorphous |
| Answer» <p>Diamond is a solid form of the element carbon with its atoms arranged in a crystal of tetrahedral structure called diamond cubic.</p><p>(b) tetrahedral is correct option </p> | |
| 1133. |
What are carnivores? |
| Answer» <p>A carnivore is an animal or plant that eats the flesh of animals</p> | |
| 1134. |
digram of human digestive system |
| Answer» <p>The function of the digestive system is digestion and absorption. Digestion is the breakdown of food into small molecules, which are then absorbed into the body. The digestive system is divided into two major parts: The digestive tract (alimentary canal) is a continuous tube with two openings: the mouth and the anus.</p> | |
| 1135. |
Comparison of SizeallLong-ShonTick (the tallest and cross (x) the shortestCuTick () the taller and cross (x) the shorter |
| Answer» <p>1 &2 are tallest and 3rd one is short </p> | |
| 1136. |
1.3 A spherical hollow cavity is made in a lead sphere of radius R, suchthat its surface touches the outside surface of the lead sphere andpasses through its centre. The mass of the sphere before hollowingwas M. With what gravitational force will the hollowed-out lead sphereattract a small sphere of mass which lies at a distance d from thecentre of the lead sphere on the straight line connecting the centres ofthe spheres and that of the hollow, if d 2R7GMmD)7GMm18R27GMm36R27GMm(C) 9RA)(B)6the Y |
| Answer» <p> Concept:</p><p>The force of gravity on the small sphere of mass due to the lead sphere after it is made hollow is equal to the force of gravity from a solid lead sphere minus the force which would have been contributed by the smaller lead sphere which would have filled the hole.</p><p>Solution:</p><p>From the Newton’s law of universal gravitation, the force of attraction between the lead sphere and the small sphere is</p><p>F1=GMm/d2</p><p>Here, gravitational constant isG, total mass of the lead sphere isM, mass of the small sphere ismand distance between the centers of the spheres isd.</p><p>So, we need to know about the size and mass of the lead which was removed to make the hole.</p><p>The density of the lead is given by</p><p>ρ=M/[(4/3)(πR3)]</p><p>Here, radius of the lead sphere isR.</p><p>The spherical sphere has a radius ofR/2.</p><p>If the density is constant, then the mass of the hole will be the density times the volume of the hollow sphere. Thus, the mass of the hollow sphere is</p> <p>in this equation , substitute the value of d=2R and solve </p> | |
| 1137. |
weun the two layers of proProtein molecules-Phospholipid bilayer-Protein moleculesFia, 8.16 Danielli-Davson model |
| Answer» <p>this model is based on the formula PLLP. the thickness of it's membrane is 75 to 100 amstrom.. lipid bilayer is sandwiched between protein bilayer</p> | |
| 1138. |
Chromosomes are made up ofa) DNA onlyc) DNA and proteinb) protein onlyd) RNA only |
| Answer» <p>Eachchromosomeismade upof DNA tightly coiled many times around proteins called histones that support its structure.</p><p>The answer is option C)</p><p>Like my answer if you find it useful!</p> | |
| 1139. |
herons formula |
| Answer» <p>A triangle having sides a,b,c then</p><p>area of traingle = √(s-a)(s-b)(s-c)</p><p>where s = (a+b+c)/2</p> | |
| 1140. |
1. How can we prevent accidents? |
| Answer» <p>1. Always wear safety belt.</p><p>2. Do not use drinking and drug.</p><p>3. Get as much supervised practice driving as possible.</p><p>4. Keep a proper speed.</p><p>5. Use helmet if driving a bike.</p> | |
| 1141. |
Why do accidents occur? |
| Answer» <p>Ans :- Roadaccidents occurfor a variety of reasons. Often, drivers are distracted while behind the wheel, taking their focus away from the road. While the causes ofaccidentscan vary, the consequences are often the same, resulting in everything from vehicular and property damage to serious injuries.</p> | |
| 1142. |
Answer the following:Why do we need nutrients in our diet ? |
| Answer» <p>All deficiency diseasescanbe prevented by taking a balanceddiet.Themajornutrients in our food are carbohydrates, proteins, fats,vitaminsand minerals. In addition,foodalso containsdietaryfibres and water.Carbohydratesand fats mainly provide energy toourbody</p> | |
| 1143. |
rcisee the major nutrients in our food.e the following:he nutrients which mainly give energy to our body.he nutrients that are needed for the growth and maintenance ovitamin required for maintaining good eyesight.mineral that is required for keeping our bones healthy.e two foods each rich in:atstarchietary fibre |
| Answer» <p>thank you</p> | |
| 1144. |
4. What are the nutrients other than carbohydrates required by plants? How do plants get them?15 How is renlenishment of nutrients done in scilo |
| Answer» <p>Answer: Proteins and fats are thenutrients;other than carbohydrates; which are required by plants.</p> <p>Plantgets nitrogen from soil. Certain types of bacteria called rhizobium, are present in soil. They convert gaseous nitrogen into usable form and release it into the soil. .</p> <p>protein and fats are nutrients in compare to carbohydrate which have prescence in plant</p> | |
| 1145. |
Write about the early history of silk production? |
| Answer» <p>Silkis a natural protein fiberproducedby mulberry silkworm which is used for textilemanufacturing. ... Cultivation ofsilkspread to Japan somewhere around 300 CE while by 522 the Byzantines managed to obtain silkworm eggs and were able to begin silkworm cultivation of their own.</p> <p>how is silk obtained from silkworm</p> | |
| 1146. |
2. Write two uses of diamonds .... |
| Answer» <p>1. it can be used as an ornament.2. it can be used to cut glass. </p> | |
| 1147. |
Write any two uses of a computer. |
| Answer» <p>Computersare used to control large and small machines which inthepast were controlled by humans. They are also in homes, where they are used for things such as listening to music, readingthenews, andwriting. Moderncomputersare electroniccomputerhardware.</p><p>Plz like my answer and accepted as best Plz accepted as best bottom click and yes to accepted as best </p> <p>Computersareusedto control large and small machines which in the past were controlled by humans. They are also in homes, where they areusedfor things such as listening to music, reading the news, and writing. Moderncomputersare electroniccomputerhardware.</p> <p>1. inventory2. communication3. research</p> <p>They are very useful 2. They help us to shop online </p> <p>Computersare used to control large and small machines which inthepast were controlled by humans. They are also in homes, where they are used for things such as listening to music, readingthenews, andwriting. Moderncomputersare electroniccomputerhardware.</p> <p>Computersare used to control large and small machines which in the past were controlled by humans. They are also in homes, where they are used for things such as listening to music, reading the news and writing. Moderncomputersare electroniccomputerhardware.</p> | |
| 1148. |
what sDEPLETioN oF wolast |
| Answer» <p>Depletion of water means scarcity of water which means that there is a lack of water. It is manifested by partial or no satisfaction of expressed demand, economic competition for water quantity or quality, disputes between users, irreversible depletion of groundwater, and negative impacts on the environment.</p> | |
| 1149. |
2.e translucent materials? Give two examples.(a)What ar |
| Answer» <p>Ans :- Atranslucent materiallets light pass through, but objects on the other side can't be seen clearly. Think Shrinky Dinks or stained glass. In contrast, a transparentmaterialallows you to clearly see the objects on the other side. Frosted glass istranslucent, and regular glass is transparent.</p><p>Someexamplesfor translucent objectsare: Butter paper, ground glass, thin sheets of plastic etc.</p><p>PLEASE LIKE THE ANSWER</p> | |
| 1150. |
5.Explain the factors responsible for the depletion of water table. |
| Answer» | |