state whether the above statements are correct or incorrect? · 2021. 1. 17. · statement 3: the...

12
1. Statement 1: The cube of a number is that number raised to the power 3 Statement 2: A natural number n is a perfect cube if n = m 3 for some natural number m Statement 3: The cube of an even natural number is even Statement 4: The cube of an odd natural number is odd State whether the above statements are correct or incorrect? A. Statements 1, 2 and 3 are incorrect B. Statements 2, 3 and 4 are incorrect C. All statements are correct D. Only statements 1 and 3 are correct Right Answer:: C 2. The given table gives the plan outlay for 1987-88 for three states, A, B, and C under the major heads (In lakhs of rupees). Study the table and answer the questions given below. State A B C Total Agriculture 1203.64 916.88 378.54 2499.06 Rural 925.46 741.34 217.62 1884.42 Development Irrigation & 85.34 72.20 40.36 197.90 Flood control Energy 2713.57 1015.65 617.42 4346.64 Industries 1056.28 9000.00 136.46 2092.74 Education 336.86 432.39 186.54 955.79 Social Services 100.97 118.42 34.41 250.80 Communication 81.23 100.20 0.82 182.25 Total 6503.35 4297.08 1609.17 12409.60 Which area received minimum consideration in state A? A. Irrigation and flood control B. Communication C. Social services D. Rural Development Right Answer:: B 3. is______ 8 3 3 1 3 1 1 4 1 2 of value The 3 2 + + ÷ ø ö ç è æ ´ A. 3 1 2 B. 6 1 4 C. 3 1 3 D. 2 1 5 Right Answer:: C 4. A tissue can be 0.000075 meter thick.Which of the following expressions represent 0.000075 in scientific notation? A. 7.5 × 10 5 B. 7.5 ×10 -5 Yagna Mock Test (www.yagnainn.com) Page 1 / 12

Upload: others

Post on 29-Jan-2021

0 views

Category:

Documents


0 download

TRANSCRIPT

  • 1 . Statement 1: The cube of a number is that number raised to the power 3 Statement 2: A natural number n is a perfect cube if n = m3 for some natural number m Statement 3: The cube of an even natural number is even Statement 4: The cube of an odd natural number is odd State whether the above statements are correct or incorrect?

    A . Statements 1, 2 and 3 are incorrectB . Statements 2, 3 and 4 are incorrectC. All statements are correctD. Only statements 1 and 3 are correct

    Right Answer:: C

    2 . The given table gives the plan outlay for 1987-88 for three states, A, B, and C under the major heads (In lakhs of rupees). Study the table and answer the questions given below.

    State A B C Total

    Agriculture 1203.64 916.88 378.54 2499.06

    Rural 925.46 741.34 217.62 1884.42

    Development

    Irrigation & 85.34 72.20 40.36 197.90

    Flood control

    Energy 2713.57 1015.65 617.42 4346.64

    Industries 1056.28 9000.00 136.46 2092.74

    Education 336.86 432.39 186.54 955.79

    Social Services 100.97 118.42 34.41 250.80

    Communication 81.23 100.20 0.82 182.25

    Total 6503.35 4297.08 1609.17 12409.60

    Which area received minimum consideration in state A?

    A . Irrigation and flood controlB . CommunicationC. Social servicesD. Rural Development

    Right Answer:: B

    3 .

    is______ 8

    331

    3

    11

    4

    12 of valueThe 3

    2

    ++÷øö

    çèæ´

    A . 3

    12

    B . 6

    14

    C. 3

    13

    D. 2

    15

    Right Answer:: C

    4 . A tissue can be 0.000075 meter thick.Which of the following expressions represent 0.000075 in scientific notation?

    A . 7.5 × 105

    B . 7.5 ×10-5

    Yagna Mock Test (www.yagnainn.com) Page 1 / 12

  • C. 7.5 ×106

    D. 75 ×10-6

    Right Answer:: B

    5 . Which number is opposite to 3?

    A . 2B . 3C. 4D. 6

    Right Answer:: C

    6 . is5

    4

    (1024) of valueThe

    A . 64

    1

    B . 128

    1

    C. 256

    1

    D. 512

    1

    Right Answer:: C

    7 . A father’s age was 5 times his son’s age 5 years ago and will be 3 times son’s age after 2 years. The ratio of their present age is

    A . 5: 2B . 5: 3C. 10 : 3D. 11: 5

    Right Answer:: C

    8 . Find out the missing number in each of the following questions.

    A . 44B . 40C. 60D. 92

    Right Answer:: C

    9 . Find out the missing number in each of the following questions

    Yagna Mock Test (www.yagnainn.com) Page 2 / 12

  • A . 400B . 81C. 144D. 225

    Right Answer:: A

    10. What is the cost price of an article which is sold at a loss of 25% for Rs.150?

    A . Rs. 125B . Rs. 175C. Rs. 200D. Rs. 225

    Right Answer:: C

    11. The length of a rope by which a cow must be tethered to graze over an area of 2464 m2, is

    A . 28mB . 36mC. 44mD. 48m

    Right Answer:: A

    12. What are the two possible coordinate points for the relation x equals y added to two?

    A . {(6, 2), (11, 3)}B . {(-2, -2), (18, 4)}C. {(3, -1), (6, -3)}D. {(3, 1), (5, 3)}

    Right Answer:: D

    13. equals girls ofnumber then boys are 70strength of class a of students

    7

    4 If

    A . 40B . 30C. 120D. 110

    Right Answer:: B

    14. Tony needs to solve the equation given below.

    20

    6

    4

    3=t

    What operation should Tony perform to solve the equation for t?

    A . 4

    1by sidesboth Multiply

    B . 4

    3by sidesboth Divide

    Yagna Mock Test (www.yagnainn.com) Page 3 / 12

  • C. sidesboth to

    4

    3 Add

    D. sidesboth from

    4

    3Subtract

    Right Answer:: B

    15. Which one of the following figures is correct if total number of dots on opposite faces of a dice always remains 7?

    A .

    B .

    C .

    D .

    Right Answer:: A

    16. Which one of the following is correct match?

    A . Rabi - sowing (June-July), harvesting (Sep-Oct)B . Kharif - sowing (June-July), harvesting (Sept-Oct)C. Rabi - sowing (Oct-Dec), harvesting (June-July)D. Both (B) & (C)

    Right Answer:: B

    17. Factor(s) responsible for increased crop production in India is/are

    A . Use of improved seeds developed by plant breeding and scientific methods to improve soil fertilityB . Protection of plants against pests and better storageC. Control of plant diseasesD. All of the above

    Right Answer:: D

    18. The type of bacteria shown in the figure are

    A . BacillusB . CoccusC. SpirillumD. Vibrio

    Right Answer:: B

    Yagna Mock Test (www.yagnainn.com) Page 4 / 12

  • 19. Select the correct sequences of microorganisms according to size, starting with the smallest

    A . Coccus, virus, bacillus, mould, yeast, SpirogyraB . Virus, coccus, bacillus, mould, yeast, SpirogyraC. Virus, coccus, bacillus, yeast, mould, SpirogyraD. Virus, bacillus, coccus, yeast, mould, Spirogyra

    Right Answer:: C

    20. Cotton is a polymer called____________ and made up of a number of_______________ units. Fill in the blanks with the appropriate option

    A . Cellulose, glucoseB . Glucose, celluloseC. Cellulose, cell wall D. Cell wall, cellulose

    Right Answer:: A

    21. Which of these fibres is made from a raw material obtained from plants?

    A . RayonB . NylonC. TeryleneD. Polyester

    Right Answer:: A

    22. Which of the following reactions cannot occur?

    A . Fe + CuSO4 → FeSO4 + CuB . Zn + FeSO4 → ZnSO4 +FeC. Fe + ZnSO4 → FeSO4 + ZnD. Both (B) & (C)

    Right Answer:: C

    23. The same gas is evolved when Al reacts with H2SO4 and NaOH. The gas is

    A . N2B . O2C. H2D. None of these

    Right Answer:: C

    24. Arrange the following in order of increasing volatility. (i) Fuel oil, (ii) Gasoline, (iii) Diesel oil, (iv) Paraffiin oil

    A . (iii) < (ii) < (iv) < (i)B . (iv) < (iii) < (ii) < (i)C. (i) < (iii) < (ii) < (iv)D. (ii) < (iv ) < (iii) < (iii)

    Yagna Mock Test (www.yagnainn.com) Page 5 / 12

  • Right Answer:: D

    25. The term ‘black gold’ is used for

    A . CharcoalB . CokeC. PetroleumD. None of these

    Right Answer:: C

    26. Which amongst the following is the cleanest fuel?

    A . CNGB . CharcoalC. DieselD. Petrol

    Right Answer:: A

    27. Sleeping in a closed room with burning angeethi can prove to be fatal, because

    A . Coal is a poisonous substanceB . Poisonous gas, carbon monoxide, is produced due to the incomplete combustion of coalC. Burning of coal in a closed room evolves carbon dioxide and water vapour, which are harmfulD. None of the above

    Right Answer:: B

    28. Given below are figures of flora and fauna. Which of the following can be seen at Panchmarhi Biosphere Reserve?

    (i) (ii) (iii) (iv)

    A . (i) & (ii)B . (i) & (iii)C. (i), (ii) & (iv)D. All of these

    Right Answer:: D

    29. The plant in the picture is a wild, medicinal plant. It is a threatened species due to over collection. A drug obtained from this plant is widely used in homeopathy. What is the name of this plant?

    Yagna Mock Test (www.yagnainn.com) Page 6 / 12

  • A . AconitumB . LantanaC. PartheniurnD. Water hyacinth

    Right Answer:: A

    30. In a biology lecture, the teacher was dictating the organelles of a cell as endoplasmic reticulum, mitochondria, nucleus, ribosome, centriole and centrosome. Which cell was she referring?

    A . Prokaryotic cellB . Plant cellC. Animal cellD. It is not possible to predict from the given data

    Right Answer:: C

    31. Give the correct order of the procedures listed below to prepare a specimen for microscopic examination

    A . Embedding, rehydration, dehydration, mounting, fixation, staining, sectioningB . Embedding, dehydration, rehydration, mounting, fixation, staining, sectioningC. Fixation, dehydration, embedding, sectioning, staining, mounting, rehydrationD. Fixation,dehydration, embedding, sectioning, rehydration, staining, mounting

    Right Answer:: D

    32. In honey bee the drones (males) are produced from

    A . Unfertilized eggsB . Fertilized eggsC. Larvae from unfertilized eggs, which are fed on royal jellyD. Larvae from unfertilized eggs, which are not cared by the workers at all

    Right Answer:: A

    33. Which of the following is incorrect regarding test tube baby?(i) It is developed in a test tube.(ii) It is developed through tissue culture method.(iii) The ovum is fertilized externally and thereafter implanted in the uterus.(iv) It develops from a non-fertilized egg

    A . (i) & (iv)B . (ii) & (iv)C. (i) & (iii)D. (i), (ii) & (iv)

    Right Answer:: D

    34. Match the columns and select the correct option from the codes given below Column I Column II

    (a) A child running to (i) Force can make a

    catch the school bus stationary object to move

    Yagna Mock Test (www.yagnainn.com) Page 7 / 12

  • (b) A man blowing (ii) Force can stop a

    a balloon moving object

    (c) A woman pushing (iii) Force can change the

    a table shape of an object

    (d) A cricketer catching (iv) Force can make an object

    a ball move faster

    A . (a) - (iv), (b) - (iii), (c) - (i), (d) - (ii)B . (a) - (iii), (b) - (ii), (c) - (i), (d) - (iv)C. (a) - (i), (b) - (ii), (c) - (iii), (d) - (iv)D. (a) - (ii), (b) - (iv), (c) - (i), (d) - (iii)

    Right Answer:: A

    35. A boy set up an experiment as shown in the diagram. As he slid the magnet across the wooden board, the ball bearing followed the magnet’s  movement and direction. What does the experiment show?

    (i) Magnetic force can be seen.(ii) Friction and gravity help to move the ball bearing.(iii) The ball bearing is made of magnetic susbtance. (iv) Magnetic force can pass through the wooden board

    A . (i) & (ii)B . (B) (iii) & (iv)C. (i), (iii) & (iv)D. (ii), (iii) & (iv)

    Right Answer:: B

    36. Why does a horse need to pull harder during the first few steps in pulling the cart?

    A . Static friction is greater than sliding frictionB . Sliding friction is greater than rolling frictionC. No frictional force acts after the cart comes in motionD. Air friction is greater during first few steps of motion

    Right Answer:: A

    37. The deep grooves in the tyres of the tractor

    A . Decrease frictionB . Increase frictionC. Make it stableD. Make type more attractive

    Right Answer:: A

    Yagna Mock Test (www.yagnainn.com) Page 8 / 12

  • 38. Which of the following is in audible sounds?

    A . 20 HzB . 20,000 HzC. 1,500 HzD. 30,000 Hz

    Right Answer:: D

    39. Observe the following musical instruments and select the odd one

    A .

    B .

    C .

    D .

    Right Answer:: D

    40. Match both the columns and select the correct option from the codes given belowColumn I Column II

    (a) Insulator (i) Prevents rusting

    (b) Conductor (ii) Pure water

    (c)Electroplating (iii) Copper wire

    A . (a) - (i), (b) - (ii), (c) - (iii)B . (a) - (iii), (b) - (i), (c) - (ii)C. (a) - (i), (b) - (iii), (c) - (ii)D. (a) - (ii), (b) - (iii), (c) - (i)

    Right Answer:: D

    41. When copper rod donates electrons to hydrogen ions, it gains ______ charge

    A . PositiveB . NegativeC. No chargeD. Cannot say

    Right Answer:: A

    Yagna Mock Test (www.yagnainn.com) Page 9 / 12

  • 42. Electrical charge can be transferred from a charged object to another through

    A . VacuumB . AirC. InsulatorD. Conductor

    Right Answer:: D

    43. An earthquake is caused by

    A . Shaking of the earth’s surfaceB . Tides in oceanC. The movement of earth’s plateD. All of these

    Right Answer:: C

    44. An object O is placed near a plane mirror as shown. The observer can see the image of the object O at

    A . P

    B . Q

    C. R

    D. S

    Right Answer:: A

    45. Light travel at different speeds in different materials (mediums). Which is the correct order of increasing speed of light in the following materials?

    A . Air, water, glassB . Water, air, glassC. Water, glass, airD. Glass, water, air

    Right Answer:: D

    46. The tail of a the comet points away from the sun due to

    A . Centrifugal forceB . Electrical repulsionC. Attraction of comet due to other planetsD. Radiation pressure

    Right Answer:: D

    Yagna Mock Test (www.yagnainn.com) Page 10 / 12

  • 47. Asteroids are

    A . Small broken pieces of planetsB . Shooting starsC. Found in a belt between earth and VenusD. None of these

    Right Answer:: A

    48. Which one of the following graphs shows the likely relationship between the changes in the percentage of pollution to the activities carried out by man in a particular town?

    A .

    B .

    C .

    D .

    Right Answer:: C

    49. The given graph shows the amount of pollutants in four rivers P, Q, and S. The river that can continue to support the most number of aquatic plants and animals is river

    A . PB . Q

    C. R

    D. S

    Right Answer:: A

    50. Which of the following methods will reduce air pollution?

    Yagna Mock Test (www.yagnainn.com) Page 11 / 12

  • A . Planting of treesB . Use of catalytic converterC. Use of LPG and CNGD. All of these

    Right Answer:: D

    Yagna Mock Test (www.yagnainn.com) Page 12 / 12