This section includes 7 InterviewSolutions, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Polycot it is a mixture of wool and polyester. true or false |
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Answer» It is false because POLYCOT is a MIXTURE of COTTON and polyester. |
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| 2. |
PH of oxygenated blood is ----------. |
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Answer» pH of oxygenated blood is 7.36 to 7.44. Blood Ph is acidity or ALKALINITY of blood. Normal or neutral ph of blood is 7. If the pH level of blood GETTING LOWER that means the acidity level is getting higher in blood. Higher or lower level of blood affects lung function, ENDOCRINE function, kidney function and urinary tract infection etc. |
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| 3. |
What is inertia and mass class 9 |
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Answer» INERTIA is the tendency of a object which keeps it in the STATE of REST or of motion. Mass is the measure of the matter in the object. |
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| 4. |
Q. Give an example where two equal and opposite forces do not form an action - reaction pair... |
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Answer» 1. When u hold a bag. Ur muscular Force and the GRAVITATIONAL force EQUALIZE their effects and that KEEPS the bag from going in any one DIRECTION. 2. when 2 people push and pull a door from opposite forces . |
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| 5. |
Define of pollution? |
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Answer» ⛤Hey There⛤ |
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| 6. |
How many liters of oxygen at stp is required to burn 60g ethane |
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| 7. |
Ravi applied a force of 10n and moved a by book 30 cm in the direction of the force how many was the work done by ravi |
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Answer» GIVEN, Force = 10 Newton displacement = 30 CM = 30/100 m = 0.3 m Since , WORK done = force × displacement = 10 × 0.3 = 3 JOULE |
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| 8. |
Why is it necessary to classify living things |
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Answer» We need to classify organisms because their white DIVERSITY of organisms and then it will be very DIFFICULT for us to study ORGANISATIONAL hands to make it easy we have to classify living THINGS |
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| 10. |
Write five physical properties of metal and non-metals |
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Answer» metals are GOOD CONDUCTOR of ELECTRICITY n NON metals are bad conductor of electricity metals are conductor of HEAT and non metals are not conductoor of heat |
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| 11. |
Give two examples of each of water, soil and air pollution from your residential area. |
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Answer» In our area there is more unnecessary USE of WATER for WASHING of vhecials and animals. |
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| 12. |
Match the followingProducersa. Cactusb. Aquatic plantsc. Mangrovesd. PineEcosystem1. Forest2. Creek3. Aquatic4. Desert |
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Answer» A.cactus-4.desert |
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| 13. |
Water in the waterfall flows from a higher level to the lower level because of .......................... |
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Answer» Water in the waterfall flows from a higher LEVEL to the lower level because water flows from higher pressure to lower pressure. In case of waterfall the MOUNTAIN region has higher than lower leveled REGIONS like the plateau and the plane. HENCE the water tends to fall from higher to lower region. |
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| 14. |
What is the meaning of spdf block |
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Answer» ◆◆SPDF BLOCK◆◆ |
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| 15. |
What difference between rotation and revolution |
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Answer» ◆◆ROTATION is the MOVEMENT of a planet or satellite around its axis. The rotation of the EARTH takes 24 hours. |
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| 16. |
The element present in the largest amount in rocks and minerals is–(A) Carbon (B) Silicon(C) Hydrogen (D) Aluminium |
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| 17. |
If vector A= B+C and magnitude of vector A,B,C are 5,4,3,units respectively,the angle between Vector A and C |
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Answer» HENCE, the ANGLE between VECTOR A and B is |
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| 18. |
Which substances are produced by neutralization process? |
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Answer» In chemical reactions, when acids and BASES react together, Neutralization OCCURS. In this type of reactions, when an acid and a base react, salt and water are produced. The reaction involves the interaction of H+ ion with OH- ion to FORM H2O. Equal weights of acids and base are REQUIRED to form these salt and water. |
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| 19. |
What is crop rotation?explain it with help of example. |
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Answer» CROP rotation is the practice of growing a series of different types of crops in the same area in sequential SEASONS. Crop rotation GIVES various NUTRIENTS to the soil. A traditional element of crop rotation is the replenishment of nitrogen through the use of green manure in sequence with cereals and other crops For example, a simple rotation between a heavy nitrogen using plant (e.g., corn) and a nitrogen depositing plant (e.g., soybeans) can help maintain a HEALTHY balance of nutrients in the soil. |
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| 20. |
Name the part of human brain which perform the following : 1.Sensation of feeling full 2. Vomiting 3. Picking up a pencil 4. Riding a bicycle |
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Answer» Here is a list of parts of our BRAIN that controls the major part of our DAILY activities: 1. The sensation of feeling full: Separate part of the forebrain that is associated with hunger 2. Vomiting: Medulla in the hindbrain 3. PICKING up a PENCIL and riding a bicycle: Cerebellum of the hindbrain |
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| 21. |
Two boxers Maddy and Mac participate in a boxing match. In the final minute of the game, Maddy hit Mac with a thunderous punch on his head. After this Mac was unable to stand properly and keep his balance. Which part of Mac's brain do you think was affected the most? |
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Answer» Boxers often suffer from injuries to the head and face. During matches, a BOXER can suffer from an injury to the head that MAKES him feel dizzy. That might make it DIFFICULT for him to stand up or keep his balance. A punch to the head can often do that to a boxer, which can RESULT in a knockout as WELL. This injury happens to the Hypothalamus of the head. |
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| 22. |
Explain with reasons - Food must have limited amount of salts. |
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Answer» Having less sodium in your diet may help you lower or avoid high blood pressure. PEOPLE with high blood pressure are more likely to develop heart disease or have a STROKE. Most people eat too much sodium, OFTEN without knowing it. The average American eats about 3,400 MG of sodium a day. |
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| 23. |
Write the natural or manmade raw material of the following items.Mattress, beaker, bangle, chair, gunny bag, broom, knife, pen. |
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Answer» And PLEASE MARK me BRAINLIEST |
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| 24. |
The luster on the surface of aluminum utensils in the house is lost after few days. Why does this happen? |
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Answer» Metals like gold, IRON, aluminium etc. have very shiny APPEARANCE. |
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| 25. |
What are tendrils? what is the function of tendrils? |
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Answer» Tendril is a slender whip LIKE SOFT structure that helps the PLANT in climbing for support and attachment. |
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| 26. |
I am ATP producing factory - Who am I? |
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Answer» I am ATP producing factory - Who am I? I am ATP producing factory I am Mitochondria. Mitochondria is KNOWN as the POWER house of cell. They are organelles that ACT like a digestive SYSTEM which takes in nutrients, breaks them down, and creates energy rich molecules for the cell. The biochemical processes of the cell are known as CELLULAR respiration. |
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| 27. |
Thermocol is produced from which material? |
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Answer» Polystyrene
Thermocol is produced by complex material called polystyrene.
HUNDREDS of processes are done on Polystyrene for making thermocol. Polystyrene is a complex material by which thermocol, glass, PLASTIC is also made. Polystyrene is a hydrocarbon polymer by which we can create materials like thermocol. Most of the polystyrene is present in the SOLID state. And some thermocol is in the foam.
Some info about polystyrene: . 1) Melting POINT of polystyrene: 240°C 2) Density: 1.04 g/cm³ 3) SOLUBILITY: No 4) Molecular chemical formula: (C8H8)n |
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| 28. |
How can we predict about the strength of a magnetic field in q space |
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Answer» Magnetic FIELD written in term vector potential.By potential we can determine the strength of magnetic field.another WAY by MAGNETOMETER we can MEASURE the strength of magnetic field. |
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| 29. |
True or False - Objects contract on heating. |
| Answer» OBJECTS usually expand on heating unless you are using a shrinking PLASTIC WRAP of COURSE. | |
| 30. |
State the mode of heat transfer, in the following situations. (a) A paper cup, full of hot soup, lying on a table. (b) Melting of chocolate, in the school bag, on a hot summer day. |
| Answer» B)RADIATION a)CONDUCTION | |
| 31. |
what is meant by biological magnification with the help of food chain explain how biological magnification of harmful chemicals can occur |
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Answer» ┏─━─━─━─━∞◆∞━─━─━─━─┓ |
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| 32. |
Study the following incident.Swara and Yash were looking in a water filled vessel. They could see their images clearly in the still water. At that instant, Yash threw a stone in the water. Now their images were blurred. Swara could not understand the reason for the blurring of the images.Explain the reason for blurring of the images to Swara by answering the following question.i. Is there a relation between the reflection of light and the blurring of the images?ii. Which types of reflection of light can you notice from this?iii. Are laws of reflection followed in these types of reflection? |
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Answer» When one distubed still water we no more can visualize uniform reflection and LIGHT rays COMING from your face to the water surface gets REFLECTED in random DIRECTIONS which our EYE can't catch at a time |
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| 33. |
Draw a figure showing the following.a. Incident Rayb. Normalc. Angle of incidenced. Angle of reflectione. Point of incidencef. Reflected ray |
| Answer» SEE the above IMAGE..... | |
| 34. |
Name and write the one point of difference each between the two kinds of Autonomic nervous system with respect to their efforts on a. heart b. urinary bladder? |
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Answer» TWO TYPES of autonomic nervous system are ... A. Sympthatic (SNS) B. Parasympathetic (PNS) Effect on heart: SNS increases heart rate as a RESULT increasing cardiac OUTPUT whereas PNS decreases the heart rate. Effect on urinary bladder: SNS stimulates contraction in inner spinster whereas PNS stimulates contraction in smooth muscles of bladder. |
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| 35. |
Weeds can be uprooted either by hands or with the help of implements like a....................... |
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| 36. |
True or False - The temperature of a substance is measured in Joules. |
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Answer» " False " |
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| 37. |
Name a compound that is used in black and white photography. Give a balanced chemical equation for the reaction that takes place, when it is exposed to light. Also state the type of reaction. |
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Answer» SILVER CHLORIDE, silver bromide (AgBr) and silver IODIDE (AGI) are the three silver "halide" compounds USED in photography 2AgBr (s) ------------ 2Ag (s) + Br2 (g) decomposition reaction |
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| 38. |
Explain the relation between continuous rains and landslide. Give reasons. |
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Answer» Landslides occur when the slope changes from a stable to an UNSTABLE condition. A change in the STABILITY of a slope can be caused by a NUMBER of factors, acting together or alone. Natural causes of landslides include: GROUNDWATER (pore water) pressure acting to DESTABILIZE the slope. |
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| 39. |
Give scientific reasons - Large dams destroy ecosystems. |
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Answer» Says the short answer is “yes” dams do destroy rivers as ecosystems. |
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| 40. |
Pratibimba Kake Bole .(science question) |
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Answer» REFLECTION ( PRATIBIMBA) is the word used in SCIENCE in LIGHT THEORY. |
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| 41. |
We consume many food items in our daily life e.g. lemon, tamarind, tomato, sugar, vinegar, salt etc. Do all items taste similar? |
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Answer» No. many FOOD items that we consume are MOSTLY different. some are ACIDIC in nature,basic in nature and salts. |
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| 42. |
What is the taste of lemon, sugar, curd, lime, baking soda, amla, tamarind, raw mango, pomegranate, water? |
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Answer» • The taste of lemon is sour taste because lemon CONTAINS CITRIC acid so it gives a sour taste to lemons. • Sugar gives sweetness taste because sugar contains glucose and fructose. • BAKING soda gives a little bit of salt and bitter taste because basically, it contains sodium hydrogen carbonate. • Curd, Amla, Tamarind, Lime, Raw MANGO these are all GIVEN a sour taste. • when milk converted to curd the lactobacillus bacteria converts the lactose into lactic acid that's why curd contains sour taste. • Pomegranate also gives sour taste but it will depend on the ripeness of the seeds. • The water itself has no taste. Water is tasteless, colorless and odorless. |
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| 44. |
Suggest any three measures that can help to check global warming |
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Answer» Hii here is ur answer |
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| 45. |
What are the possible threats to grasslands? |
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Answer» Continued global warmingcould turn CURRENT marginal grasslands into deserts as rainfall patterns change. Land once incompatible with row-crop agriculture, but which provided a living to ranching families and HABITAT for prairie WILDLIFE, is being converted to row CROPS. |
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| 46. |
Explain by writing a word equation - Respiration is a chemical change. |
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Answer» CELLULAR respiration is the chemical reaction in which glucose and OXYGEN are TURNED into water, carbon dioxide, and energy (ATP). ... When usingchemical formulas, it is important to make sure the atoms on the left and right are balanced as NOTHING is created or destroyed in the process.... The chemical equation is C6H12O6 + 6O2 → 6CO2 + 6H2O (glucose + oxygen -> carbon dioxide + water)..... HOPE IT WILL HELP YOU... IF SO THAN MARK IT AS BRAINLYT... |
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| 47. |
Which health parameters of blood donor should be checked? |
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Answer» Only individuals in good health should be accepted as blood DONORS. Good health is DIFFICULT to define, but certain ASSOCIATED parameters may be established from a brief medical history, observation and simple tests. Staff undertaking donor health and risk assessment should be well-trained in the observation of donor appearance and detection of signs of ill health. Staff should receive explicit guidance on what to look for and when to refer a donor to a health-care PROFESSIONAL for further medical attention. |
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| 48. |
How are the blackened silver utensils and patinated brass utensils cleaned? |
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Answer» The blackned silver UNTENSILS and patined brass utensils CLEANED by VINEGAR |
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| 49. |
Who is my partner?‘A’ columna. Lead glassb. Bakelitec. Thermocold. Optic glasse. Polypropylene‘B’ columni. Platesii. Mattressesiii. Electric bulbiv. Electric switchv. Lens |
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Answer» 1.lead GLASS. plates(3 2.Bakelite. mattress(5 4.optic glass. electric SWITCH(2 5.polypropylene. lens(4 please START to follow me |
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| 50. |
Why indicator does not get affected by salt? |
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Answer» INDICATORS are substances which GIVES a prominent sign to identify the PRESENCE of acids and alkali in the solution. Salt is produced from the REACTION of acids and bases. So, salts are CONSIDERED as neutral. For this reason, Indicators are not affected by salt as salt is the product of acid and base which is neutral. |
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