Q50. Which irrigation project–district pair is incorrectly matched?
[Rajasthan CET Graduate (8 January 2023, Shift 2)]
(A) Benthali–Baran
(B) Indira Lift–Ganganagar
(C) Bankali–Jalore
(D) Bhimlat–Bundi
Answer: (B) Indira Lift–Ganganagar
Explanation: Benthali is associated with Baran, Bankali with Jalore and Bhimlat with Bundi. The specified Indira Lift–Ganganagar pairing is the mismatched option in this Rajasthan examination item.
Q49. Which Rajasthan irrigation project first made sprinklers mandatory?
[Rajasthan CET Graduate (8 January 2023, Shift 2)]
(A) Narmada Canal
(B) Mahi Bajaj Sagar
(C) Indira Gandhi Canal
(D) Chambal Canal
Answer: (A) Narmada Canal
Explanation: Rajasthan adopted compulsory sprinkler delivery for the Narmada Canal command to conserve transferred water. This approach suits water-scarce irrigated tracts, reducing broad field flooding and helping distribute limited canal allocations.
Q48. Which villages were to benefit from the Parvan Mega irrigation project?
[Rajasthan CET Graduate (8 January 2023, Shift 1)]
(A) 637 villages in Jhalawar, Baran and Kota
(B) 535 villages in Bundi, Kota and Baran
(C) 637 villages in Jhalawar, Bundi and Kota
(D) 535 villages in Pratapgarh, Jhalawar and Kota
Answer: (A) 637 villages in Jhalawar, Baran and Kota
Explanation: The Parvan multipurpose project in Rajasthan is intended to supply irrigation and other water services within parts of the Chambal basin. The examination specified 637 beneficiary villages across Jhalawar, Baran and Kota districts.
Q47. Which irrigation project–district pairing is wrong?
[Rajasthan CET Graduate (7 January 2023, Shift 1)]
(A) Parvan Lift–Jaipur
(B) Savan–Bhado–Kota
(C) Som–Kamla–Amba–Dungarpur
(D) Som Kagdar–Udaipur
Answer: (A) Parvan Lift–Jaipur
Explanation: The Parvan Lift project is associated with southeastern Rajasthan rather than Jaipur. The other listed associations are accepted in the paper, including Som–Kamla–Amba in Dungarpur and Savan–Bhado in Kota.
Q46. Which irrigation project–district association is incorrect?
[Rajasthan CET Graduate (7 January 2023, Shift 2)]
(A) Panchna–Karauli
(B) Mansi Wakal–Dungarpur
(C) Orai–Chittorgarh
(D) Gudha–Bundi
Answer: (B) Mansi Wakal–Dungarpur
Explanation: Mansi Wakal is situated in the Udaipur district, so its proposed association with Dungarpur is wrong. The matching of Panchna with Karauli, Orai with Chittorgarh and Gudha with Bundi is accepted.
2022 Previous-Year Questions
Q45. Which is a benefit rather than a problem associated with large dams?
[RRB Group D (1 September 2022, Shift 3)]
(A) Forest loss
(B) High cost relative to benefit
(C) Storage of water for irrigation
(D) Displacement of inhabitants
Answer: (C) Storage of water for irrigation
Explanation: Large dams can store seasonal runoff for controlled release to farms, helping crops through dry periods. By contrast, inundated forests, displacement and unequal distribution of costs and benefits are important potential adverse consequences.
Q44. Which crop grows with temperatures of about 21–37°C and generally needs approximately 100 cm of rainfall or irrigation?
[SSC CHSL Tier-I (3 June 2022)]
(A) Rice
(B) Maize
(C) Gram
(D) Barley
Answer: (A) Rice
Explanation: Rice grows best in warm conditions and often requires abundant moisture during cultivation. Rainfall alone may be insufficient or poorly timed, so canals, tanks and wells supply supplementary irrigation in many rice-growing regions.
Q43. Which statement is not an advantage of sprinkler irrigation?
[NHPC Junior Engineer Mechanical (6 April 2022, Shift 2)]
(A) Fertilizer can be applied in water
(B) It requires greater electrical power
(C) It can reduce waterlogging
(D) It may save labour
Answer: (B) It requires greater electrical power
Explanation: Sprinklers can distribute water uniformly and reduce labour needs but need pumping pressure. Electrical or mechanical energy demand is a potential cost, not a benefit. Their suitability also depends on wind, water quality and soil infiltration.
Q42. An irrigation project with a cultivable command area of 8,000 hectares belongs to which category?
[JKSSB Junior Engineer Civil (20 March 2022)]
(A) Major
(B) Medium
(C) Minor
(D) Groundwater
Answer: (B) Medium
Explanation: Indian irrigation-project classifications generally designate up to 2,000 hectares as minor, above 2,000 through 10,000 as medium, and over 10,000 as major. The stated cultivable command area falls within the medium class.
2021 Previous-Year Questions
Q41. A canal must supply 16 cm of useful field water, with 80% application efficiency. What depth is needed at the field outlet?
[JKSSB Junior Engineer Civil (27 October 2021)]
(A) 16 cm
(B) 18 cm
(C) 20 cm
(D) 24 cm
Answer: (C) 20 cm
Explanation: Gross application depth equals net depth divided by application efficiency. Thus 16 ÷ 0.80 gives 20 centimetres. The extra four centimetres account for water that does not contribute to the intended field requirement.
