MCQ
Water MCQ - Practice Questions with Answers
Solve 10 Water questions for RAS/RPSC preparation.
Practice questions
Q1Read the two statements: Assertion (A): A teacher in a Class V EVS lesson tells the children that boiling water for at least one full minute is the simplest way to make doubtful drinking water safer at home in a village without piped supply. Reason (R): Heating water to its boiling point kills most disease-causing germs that may be present in the water. Choose the correct option:
Boiling water for at least a minute is genuinely a recommended household method to make doubtful water safer to drink, especially in homes without piped or treated supply. The reason it works is exactly that boiling temperatures destroy most disease-causing germs. So A is true, R is true, and R is precisely why A is recommended in the textbook.
Q2How many of the following are surface water sources rather than groundwater sources? (i) River Banas (ii) Tube well in a school courtyard (iii) Bisalpur reservoir (iv) Hand pump in a village (v) Pond near the school playground
A river, a reservoir behind a dam, and a pond all hold water on the land surface, so the Banas river, the Bisalpur reservoir and the school-side pond are surface water sources — three in total. A tube well and a hand pump pull up water from below the ground, so they are groundwater sources, not surface ones.
Q3Approximately what fraction of the water on planet Earth, as introduced in NCERT EVS Class V, is fresh water available for human use in rivers, lakes and accessible groundwater? Pick the closest simple figure used in primary classrooms.
Primary EVS textbooks state that most of Earth's water is salty seawater and only a small share is fresh. Of that small share, even less is easily usable in rivers, lakes and shallow groundwater. The simple takeaway taught to children is that less than about three parts in a hundred of all Earth's water is fresh, which is why conservation matters.
Q4Which of the following is the BEST simple step a Class III child can take at home to save water during daily activities, in line with NCERT EVS conservation messages?
Turning off the tap while brushing and using a mug for rinsing is a textbook example of saving water at the personal level, repeated in NCERT EVS Class III and Class IV chapters and in school morning-assembly water conservation talks. It directly avoids running-tap wastage that the other options describe.
Q5Two statements about the Indira Gandhi Canal as covered in Class V EVS context for Rajasthan: Statement I: The Indira Gandhi Canal carries water from rivers of Punjab through northern and western Rajasthan and supports drinking water and irrigation in districts such as Hanumangarh and Bikaner. Statement II: The Indira Gandhi Canal originates inside Bikaner district from rainfall over the Aravalli range and does not depend on any rivers outside Rajasthan. Which of the following is correct about the two statements?
Statement I matches the standard description of the Indira Gandhi Canal in primary geography material — it carries Sutlej and Beas water from Punjab into northern and western Rajasthan and supports drinking water and irrigation in Hanumangarh, Bikaner and similar districts. Statement II is incorrect because the canal does not originate from rainfall in the Aravallis inside Bikaner; it depends on rivers from outside Rajasthan.
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More questions
6An NCERT EVS Class IV chapter describes people from a village carrying empty buckets and pots because wells have no water and tanker water comes only occasionally, while a nearby water park uses plenty of water for play. Which of the following is the MOST appropriate primary-grade learning point a teacher should highlight from this situation?
7A primary teacher wants to demonstrate the water cycle to a Class V class using a covered bowl placed in sunlight with a cup inside. Water collects on the inner surface of the cover and drips into the cup. The two processes the children are mainly observing are:
8Consider the following statements about sources of water suitable for a Class IV EVS lesson in Rajasthan: (i) A baori is a traditional stepwell that stores groundwater. (ii) Rainwater collected on a rooftop and led to a tanka is a form of rainwater harvesting. (iii) The Bisalpur dam supplies drinking water to Jaipur, Ajmer and Tonk districts. Which of the statements are correct?
9Arrange the following events of the everyday water cycle taught in Class V EVS in the correct order, starting from a sunny pond: (i) Tiny droplets join to form clouds in the cool sky (ii) Clouds release droplets back to the ground as rain (iii) Sun warms pond water and turns it into invisible vapour (iv) Vapour rises and reaches cooler air above
10Match the traditional Rajasthani water structure in List I with its main feature in List II: List I (Structure) (a) Tanka (b) Johad (c) Baori (d) Nadi List II (Feature) 1. A small earthen pond formed in a natural depression to collect rainwater for cattle and recharge 2. A covered underground tank usually attached to a house, fed by rooftop rainwater 3. A small village pond, slightly larger than a johad, used as community water source 4. A stepwell with steps leading down to groundwater used for drinking and washing