General Science Page-5

41) Sodium depletion occurs in excessive sweating and cannot be corrected by drinking water alone. When uncorrected, it may lead to:
(A) Muscle cramps, loss of energy, fatigue and faintness
(B) Increase of urea in blood
(C) Swelling of ankles and feet
(D) Renal failure

42) The heart of a normal adult human being weighs about:
(A) 200 grams
(B) 300 grams
(C) 400 grams
(D) 500 grams

43) The part of the body directly affected by Pneumonia is:
(A) Bone tissue
(B) Epidermal issue
(C) Nervous system
(D) Respiratory system

44) As the amount of clay in a soil increases, its water retaining capacity:
(A) Decreases
(B) Increases
(C) Remains unchanged

45) Hemoglobin in the blood is a complex protein rich in:
(A) Copper
(B) Gold
(C) Iron
(D) Silver

46) Amino acids are a product of the digestion of:
(A) Carbohydrates
(B) Fats
(C) Proteins
(D) Vitamins

47) Which of the following foods (one ounce of edible raw portion of each) provides the largest number of Kcal. of energy?
(A) Cheese
(B) Meat
(C) Margarine
(D) Wheat

48) A flaming splinter is thrust into a bottle of oxygen, a bottle of nitrogen, and a bottle of carbon dioxide. The flame will go out in:
(A) Nitrogen and carbon dioxide but not in oxygen
(B) Oxygen and nitrogen but not in carbon dioxide
(C) Oxygen and carbon dioxide but not in nitrogen
(D) Each case

49) A person who met with an accident was partially paralysed and lacked a sense of feeling after treatment.Which part of the nervous system was affected by the accident?
(A) The left cerebral hemisphere was damaged
(B) The spinal cord seemed damaged
(C) The olfactory lobes seemed to have become defective
(D) The oculomotor nerve seemed damaged

50) On a cool and wet day a large quantity of dilute urine is passed out by most people, this is because:
(A) The body temperature also decreases
(B) The body absorbs less water when the temperature is low
(C) There is reduced loss of water through sweat
(D) Retentive power of bladder decrease on account of contraction

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