Posted On : 22-Mar-2018

Q1: Which of the following unit is not used to measure the turbidity of water

• A. ATU
• B. NTU
• C. JTU
• D. FTU

Q2: How much percentage of earth's surface is covered by water

• A. 70
• B. 71
• C. 72
• D. 74

Q3: How much percentage of the planets crust water is found in seas and oceans

• A. 97
• B. 98
• C. 96
• D. 96.5

Q4: What is the density of water

• A. 1.2gm/cm3
• B. 1gm/cm3
• C. 1.4gm/cm3
• D. 1.1gm/cm3

Q5: What is the boliling point of water(in degree)

• A. 98
• B. 99
• C. 100
• D. 105

Q6: Which of the following things is the main cause of alkalinity in natural water

• A. Potassium carbonate
• B. Potassium Bicarbonate
• C. Sodium Carbonate
• D. All of these

Q7: Which of the following is the main cause of hardness in natural water

• A. Calcium Carbonate
• B. Calcium Bicarbonate
• C. Magnesium Carbonate
• D. All of these

Q8: Temporary hardness in water is caused due to

• A. Magnesium carbonate
• B. Magnesium bicarbonate
• C. Magnesium sulphate
• D. None of these

Q9: Which of the following is limited in fresh water lakes

• A. Nitrogen
• B. Carbon
• C. Phosphorus
• D. Oxgyen

Q10: The study of distribution of water is called

• A. Oceanography
• B. Hydrography
• C. Echohydrology
• D. Glaciology