hpas 2015 science

HPAS 2015 Science Topic-Wise Solutions

HPAS 2015 Science Topic-Wise Solutions

HPAS 2015 Science

Question 11

When a body is taken from the earth to moon:

  • (A) Mass change but weight remain the same
  • (B) Weight change but mass remain the same
  • (C) Both weight and mass change
  • (D) Both weight and mass remain the same
Correct Answer: (b) Weight change but mass remain the same
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Question 12

Decibel is used to measure the intensity field of:

  • (A) Magnetic field
  • (B) Sound
  • (C) Light
  • (D) Heat
Correct Answer: (b) Sound
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Question 13

Which of the following vegetable oils does not contain essential fatty acids?

  • (A) Sunflower oil
  • (B) Mustard oil
  • (C) Coconut oil
  • (D) Groundnut oil
Correct Answer: (a) Sunflower oil
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Question 14

Usually fuels on burning cause pollution. Which one of the following fuels causes minimum environmental pollution?

  • (A) Diesel
  • (B) Coal
  • (C) Hydrogen
  • (D) Kerosene
Correct Answer: (c) Hydrogen
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Question 15

Vegetables are easily perishable because of their high content of:

  • (A) Sugars
  • (B) Water
  • (C) Vitamins
  • (D) Enzymes
Correct Answer: (b) Water
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Question 16

Sweat mainly serves to eliminate:

  • (A) Water, NaCl
  • (B) NaCl, Fats
  • (C) Dirt, water
  • (D) Serum, Water
Correct Answer: (a) Water, NaCl
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Question 17

In a poultry unit the factor most influencing the cost is the cost of:

  • (A) Feed
  • (B) Transportation
  • (C) Chicks
  • (D) Medicines
Correct Answer: (a) Feed
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Question 18

Bombyx mori is a:

  • (A) Fish
  • (B) Silkworm
  • (C) Ringworm
  • (D) Moth
Correct Answer: (b) Silkworm
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Question 19

Which of the following statements is correct?

  • (A) Wheat bran is rich in carbohydrates
  • (B) Fungal fermentation of rice is used for the preparation of alcoholic drinks
  • (C) Rice has antibiotic properties
  • (D) Wheat contains 80-85% carbohydrates
Correct Answer: (b) Fungal fermentation of rice is used for the preparation of alcoholic drinks
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Question 20

A pressure cooker works on the principle of:

  • (A) Elevation of boiling point of water by application of pressure
  • (B) Making the food-grains inside softer
  • (C) Making the food-grains softer by application of pressure and temperature
  • (D) Keeping the food-grains inside steam for a longer time
Correct Answer: (a) Elevation of boiling point of water by application of pressure
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