1. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements There are 19 multiple choice questions in this exercise. Answer by clicking on one of the red letters (A, B, C, Or D). You will get a feedback to your response. Click on the button for the question Continue

2. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements 1. 80 mm rainfall received in 30 minutes indicate AA. long duration rainfall BB. low intensity of rainfall CC. high intensity of rainfall DD. large size rain drops

3. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements 2. Soil erosion may result with AA. Rains received over large area. BB. 120 mm of rainfall in 1 hour. CC. Low intensity rains with small drop size. DD. 10 mm of rainfall in 45 minutes.

4. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements 3. Which type of rainfall you welcome to sow crops? AA. High intensity rains BB. Low intensity rains CC. 25 mm of rainfall a day before sowing DD. 10 cm rainfall after a day of sowing

5. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements 4. Monsoon rains in India are received during AA. March to April and October to December BB. June to September and October to December CC. March to April and June to September DD. I am not sure

6. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements 5. How rainfall breaks during late August and early September affect groundnut crop? AA. Delays sowing BB. Flower production is reduced CC. Pod development is affected DD. Harvesting of pods is difficult

7. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements 6. Monsoon rains result due to AA. Lower temperatures over land than sea BB. Higher temperatures over land than sea CC. Low temperatures over land and sea DD. High temperatures over land and sea

8. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements 7. The Relative humidity in the coastal areas during summer will be AA. low (10%) BB. moderate (30%) CC. high (50%) DD. very high (>60%)

9. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements 8. Relative humidity is measured using AA. hygrometer BB. barometer CC. anemometer DD. I am not sure

10. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements 9. At what relative humidity you will feel comfortable AA. 20% BB. 50% CC. 70% DD. 90%

11. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements 10. Sunshine is recorded for measuring AA. minimum temperature BB. maximum temperature CC. day length DD. I am not sure

12. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements 11. Maximum temperature is measured using ------ thermometer. AA. alcohol BB. mercury CC. Wet and dry bulb DD. I am not sure

13. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements 12. Day and night temperatures vary because of AA. presence of moon during nights BB. absence of sun during nights CC. Cooler winds during nights DD. I am not sure

14. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements 13. Air-pressure is measured by AA. hygrometer BB. barometer CC. anemometer DD. I am not sure

15. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements 14. Lesser the air in the atmosphere, the air-pressure AA. will be low BB. will be high CC. will increase DD. I am not sure

16. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements 15. A low-pressure system indicates AA. cooler temperatures BB. clear skies CC. possible rain DD. I am not sure

17. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements 16. Wind velocity is measured by AA. anemometer BB. barometer CC. hygrometer DD. I am not sure

18. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements 17. Winds move from AA. high air pressure to low pressure BB. low air pressure to high pressure CC. sea to land DD. land to sea

19. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements 18. The type of clouds in the picture are AA. Rain-giving clouds BB. Fair-Weather clouds CC. Change-of-weather clouds DD. I am not sure

20. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements 19. The type of clouds in the picture are AA. Rain-giving clouds BB. Fair-Weather clouds CC. Change-of-weather clouds DD. I am not sure

21. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements Thank you for completing this exercise. Now you may select Module IV from Course contents.

22. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements Your answer is not correct. The correct answer is: 80 mm rainfall received in 30 minutes indicate high intensity of rainfall. Continue

23. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements You are right. 80 mm rainfall received in 30 minutes indicate high intensity of rainfall. Continue

24. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements Your are right. Soil erosion may result with a high intensity rainfall like 120 mm of rainfall in 1 hour. Continue

25. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements Your answer is not correct. The correct answer is: Soil erosion may result with a high intensity rainfall like 120 mm of rainfall in 1 hour. Continue

26. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements You are right. Soaking rain like 25 mm of rainfall a day before will be useful to take up the sowings. Continue

27. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements No please. The correct answer is: Water from high intensity rainfall mostly result in run off with very little water saturating the soil profile. So soaking rain like 25 mm of rainfall a day before will be useful to take up the sowings. Continue

28. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements No please. You are partly correct because the amount of rainfall received is not clear from the statement to take up the sowings. The correct answer is: Soaking rain like 25 mm of rainfall a day before will be useful to take up the sowings. Continue

29. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements You are right Rains received during June to September, and October to December are monsoon rains. Continue

30. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements No please. Rain during March to April are not monsoon rains. These rains are known as summer showers The correct answer is: Rains received during June to September, and October to December are monsoon rains. Continue

31. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements If you are not sure, the answer is: Rains received during June to September, and October to December are monsoon rains. Continue

32. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements You are right This break in rainfall coincides with pod development in groundnut and thus affect the pod formation and development. Continue

33. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements No please. Please note the break in rainfall. Rains were received during flowering and harvesting stages and so, these stages may not be adversely affected due to moisture availability. The correct answer is: Breaks in rainfall during late August and early September coincides with pod development in groundnut, and thus affect the pod formation and development. Continue

34. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements You are right Higher temperatures over land than sea results in differential heating between land and sea. Consequent to this, air pressure will be higher on land compared to the sea. This pressure gradient brings moisture- laden winds towards land resulting in monsoon rains. Continue

35. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements No please. The correct answer is: Higher temperatures over land than sea results in differential heating between land and sea. Consequent to this, air pressure will be higher on land compared to the sea. This pressure gradient brings moisture- laden winds towards land resulting in monsoon rains. Continue

36. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements You are right Near water body the air will be saturated with moisture. So, the RH will be quiet high (>60%) during summer in the coastal areas. Continue

37. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements No please. The correct answer is: Near water body the air will be saturated with moisture. So, the RH will be quiet high (>60%) during summer in the coastal areas. Continue

38. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements You are right Relative humidity is measured using hygrometer (Fig.) Continue

39. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements No please. Barometer is used to measure air pressure (top Fig.). The correct answer is: Relative humidity is measured using hygrometer (bottom Fig.) Continue

40. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements No please. Anemometer is used to measure wind velocity (top Fig.). The correct answer is: Relative humidity is measured using hygrometer (bottom Fig.) Continue

41. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements If you are not sure, here is the answer: Relative humidity is measured using hygrometer (Fig.) Continue

42. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements You are right You will feel comfortable if RH is low. At high RH you will sweat more, feel sticky and uncomfortable. Continue

43. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements No please. The correct answer is: At high RH you will sweat more, feel sticky and uncomfortable. You will feel comfortable if RH is low. Continue

44. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements You are right Sunshine is recorded to calculate day length. Continue

45. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements No please. Sunshine do not provide maximum and minimum temperatures. The correct answer is: Sunshine is recorded to calculate day length. Continue

46. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements If you are not sure, here is the answer: Sunshine is recorded to calculate day length. Continue

47. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements You are right Mercury thermometer is used to measure maximum temperature. Continue

48. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements No please. Alcohol thermometer is used to measure the minimum temperature. The correct answer is: Mercury thermometer is used to measure maximum temperature. Continue

49. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements No please. Wet and dry bulb thermometer is used to measure the relative humidity. The correct answer is: Mercury thermometer is used to measure maximum temperature. Continue

50. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements If you are not sure, here is the answer: Mercury thermometer is used to measure maximum temperature. Continue

51. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements You are right There will not be any short-wave radiation during the nights due to the absence of sun. This results in lower temperatures during nights compared to the day temperatures. Continue

52. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements No please. The correct answer is: There will not be any short-wave radiation during the nights due to the absence of sun. This results in lower temperatures during nights compared to the day temperatures. Continue

53. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements If you are not sure, here is the answer: There will not be any short-wave radiation during the nights due to the absence of sun. This results in lower temperatures during nights compared to the day temperatures. Continue

54. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements You are right Air-pressure is measured using aneroid barometer (Fig.) Continue

55. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements No please. Hygrometer (top Fig.) is used to measure relative humidity. The correct answer is: Air-pressure is measured using aneroid barometer (bottom Fig.). Continue

56. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements No please. Anemometer is used to measure wind velocity (top Fig.). The correct answer is: Air-pressure is measured using aneroid barometer (bottom Fig.). Continue

57. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements If you are not sure, here is the answer: Air-pressure is measured using aneroid barometer (Fig.). Continue

58. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements You are right The air pressure will be lower with less air. That is why you feel difficult to breath as you climb a hill or more floors in a high-raised building. More the air, higher will be the pressure. Continue

59. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements No please. More the air, higher will be the pressure. The correct answer is: The air pressure will be lower with less air. That is why you feel difficult to breath as you climb a hill or more floors in a high- raised building. Continue

60. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements If you are not sure, here is the answer: The air pressure will be lower with less air. That is why you feel difficult to breath as you climb a hill or more floors in a high-raised building. More the air, higher will be the pressure. Continue

61. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements You are right A low-pressure system indicates cyclonic winds and subsequent possibility of rain. Continue

62. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements No please. A high-pressure system leads to cooler temperatures and clear skies. The correct answer is: A low-pressure system indicates cyclonic winds and subsequent possibility of rain. Continue

63. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements If you are not sure, here is the answer: A low-pressure system indicates cyclonic winds and subsequent possibility of rain. A high-pressure system leads to cooler temperatures and clear skies. Continue

64. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements You are right Anemometer is used to measure wind (Fig.). Continue

65. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements No please. Air-pressure is measured using aneroid barometer (top Fig.). The correct answer is: Anemometer is used to measure wind (bottom Fig.). Continue

66. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements No please. Hygrometer (top Fig.) is used to measure relative humidity. The correct answer is: Anemometer is used to measure wind (Fig.). Continue

67. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements If you are not sure, here is the answer: Anemometer is used to measure wind (top Fig.). Air-pressure is measured using aneroid barometer (middle Fig.). Hygrometer (bottom Fig.) is used to measure relative humidity. Continue

68. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements You are right Winds move from a high-pressure system towards a low-pressure system. Continue

69. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements No please. The direction of winds between sea and land depends on the air pressure differences. If air pressure is higher over the land, then the winds move towards the sea and vice-versa. The correct answer is: Winds move from a high-pressure system towards a low-pressure system. Continue

70. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements You are right The clouds in the picture are fair-weather clouds. Continue

71. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements No please. The correct answer is: The clouds in the picture are fair-weather clouds. Continue

72. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements If you are not sure, here is the answer: The clouds in the picture are fair-weather clouds. Continue

73. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements You are right The clouds in the picture are rain-giving clouds. Continue

74. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements No please. The correct answer is: The clouds in the picture are rain-giving clouds. Continue

75. Virtual Academy for the Semi Arid Tropics Course on Crop-Weather Relationships Module III: Weather Elements If you are not sure, here is the answer: The clouds in the picture are rain-giving clouds. Continue