Skip to content
Home » UPSC Prelims Quiz » UPSC Prelims Quiz: July 23, 2026

UPSC Prelims Quiz: July 23, 2026

This quiz connects nutrition, legal aid, river interlinking, Himalayan tunnel safety and data-centre regulation with their static foundations. It also tests Arctic geochemistry and strategic mapping, requiring precise evaluation of institutional, geographical and technological distinctions.

Q1. Consider the following statements:

1. The prevalence of undernourishment principally estimates habitual dietary-energy inadequacy.

2. Child stunting is determined using weight-for-height measurements.

3. A person consuming adequate calories may nevertheless be unable to afford a healthy diet.

4. Purchasing-power parity and a market exchange rate are identical measures.

Which of the statements given above are correct?

(a)

1 and 2 only

(b)

2, 3 and 4 only

(c)

1 and 3 only

(d)

1, 3 and 4 only

Statement-wise Analysis

Statement 1 – Correct: Undernourishment estimates habitual dietary-energy consumption relative to minimum energy requirements.

Statement 2 – Incorrect: Stunting uses height for age; wasting uses weight for height.

Statement 3 – Correct: Calorie adequacy does not ensure dietary diversity, protein quality or micronutrient sufficiency.

Statement 4 – Incorrect: PPP compares purchasing power, while market rates reflect currency-market exchange values.

Correct Answer: (c) 1 and 3 only
Q2. With reference to free legal aid in India, consider the following statements:

1. Article 39A forms part of the Fundamental Rights.

2. The Legal Services Authorities Act, 1987 provides the statutory framework for legal services authorities.

3. The Chief Justice of India serves as NALSA’s Patron-in-Chief.

4. A Lok Adalat may decide a dispute on merits even when the parties reject settlement.

Which of the statements given above are correct?

(a)

1 and 4 only

(b)

2 and 3 only

(c)

1, 2 and 3 only

(d)

2, 3 and 4 only

Statement-wise Analysis

Statement 1 – Incorrect: Article 39A is a Directive Principle in Part IV.

Statement 2 – Correct: The Legal Services Authorities Act, 1987 establishes the legal-services-authority framework.

Statement 3 – Correct: The Chief Justice of India is NALSA’s Patron-in-Chief.

Statement 4 – Incorrect: A Lok Adalat cannot adjudicate the dispute on merits when settlement fails.

Correct Answer: (b) 2 and 3 only
Q3. Consider the following pairs:

1. Ken — Tributary of the Yamuna

2. Betwa — Tributary of the Chambal

3. Daudhan Dam — Ken–Betwa Link Project

4. Panna Tiger Reserve — Madhya Pradesh

How many of the above pairs are correctly matched?

(a)

Only one

(b)

All four

(c)

Only two

(d)

Only three

Pair-wise Analysis

Pair 1 – Correct: The Ken joins the Yamuna.

Pair 2 – Incorrect: The Betwa is a tributary of the Yamuna, not the Chambal.

Pair 3 – Correct: Daudhan Dam is the principal storage structure of the Ken–Betwa Link Project.

Pair 4 – Correct: Panna Tiger Reserve is situated in Madhya Pradesh.

Correct Answer: (d) Only three
Q4. With reference to underground infrastructure, consider the following statements:

1. Methane can form an explosive mixture with air in an inadequately ventilated tunnel.

2. A run-of-the-river hydropower project necessarily avoids underground excavation.

3. An adit is generally a near-horizontal passage providing access to underground workings.

4. Environmental clearance by itself certifies continuous compliance with all occupational-safety requirements.

Which of the statements given above are correct?

(a)

1, 2 and 3 only

(b)

1 and 3 only

(c)

2 and 4 only

(d)

1, 3 and 4 only

Statement-wise Analysis

Statement 1 – Correct: Methane is combustible, and accumulated gas may ignite when it reaches a flammable concentration.

Statement 2 – Incorrect: Run-of-the-river projects may use headrace tunnels, access tunnels, diversion works and underground powerhouses.

Statement 3 – Correct: An adit provides horizontal or gently inclined access, ventilation or drainage.

Statement 4 – Incorrect: Environmental approval does not replace continuing engineering, labour-safety and site-supervision obligations.

Correct Answer: (b) 1 and 3 only
Q5. Consider the following statements about permafrost degradation:

1. Permafrost is ground that remains at or below 0°C for at least two consecutive years.

2. Thaw may expose sulphide minerals and contribute to acidic drainage.

3. Orange-coloured stream water necessarily proves contamination from an operating mine.

4. Mobilised iron and aluminium can affect aquatic ecosystems.

Which of the statements given above are correct?

(a)

1, 2 and 4 only

(b)

1 and 3 only

(c)

2, 3 and 4 only

(d)

1, 2, 3 and 4

Statement-wise Analysis

Statement 1 – Correct: Permafrost is defined by ground temperature and duration.

Statement 2 – Correct: Sulphide oxidation can produce acidity and mobilise metals.

Statement 3 – Incorrect: Natural acid-rock drainage can also produce orange, metal-rich water.

Statement 4 – Correct: Mobilised metals and increased acidity can degrade water quality and aquatic habitat.

Correct Answer: (a) 1, 2 and 4 only
Q6. Consider the following pairs:

1. Bab el-Mandeb — Connects the Red Sea and Gulf of Aden

2. Strait of Hormuz — Connects the Persian Gulf and Gulf of Oman

3. North Macedonia — Landlocked Balkan state

4. Skopje — Capital of North Macedonia

How many of the above pairs are correctly matched?

(a)

Only one

(b)

Only two

(c)

All four

(d)

Only three

Pair-wise Analysis

Pair 1 – Correct: Bab el-Mandeb is the southern entrance to the Red Sea.

Pair 2 – Correct: Hormuz links the Persian Gulf with the Gulf of Oman.

Pair 3 – Correct: North Macedonia has no coastline.

Pair 4 – Correct: Skopje is North Macedonia’s capital.

Correct Answer: (c) All four
Q7. With reference to data-centre sustainability, consider the following statements:

1. Power Usage Effectiveness compares total facility energy with the energy used by computing equipment.

2. A PUE value closer to one ordinarily indicates greater energy efficiency.

3. Liquid cooling necessarily eliminates both direct and indirect water consumption.

4. Annual renewable-energy procurement guarantees carbon-free electricity during every hour of operation.

Which of the statements given above are correct?

(a)

1 and 2 only

(b)

1, 2 and 3 only

(c)

3 and 4 only

(d)

1, 2 and 4 only

Statement-wise Analysis

Statement 1 – Correct: PUE is calculated by dividing total facility energy by the energy consumed by information-technology equipment.

Statement 2 – Correct: A value approaching one indicates that less energy is being consumed by cooling and other support systems.

Statement 3 – Incorrect: Liquid cooling may reduce some water or energy requirements, but its total water footprint depends on system design and electricity generation.

Statement 4 – Incorrect: Annual procurement does not ensure that renewable generation coincides with demand during every operating hour.

Correct Answer: (a) 1 and 2 only
UPSCGSPEDIA Learning Resources
Continue With Daily Newspaper Notes
Structured current-affairs coverage designed for focused UPSC Prelims and Mains preparation.

Read concise and syllabus-linked notes on major editorials, government initiatives, reports, international developments and policy debates. Each topic is organised to support conceptual clarity, revision and answer enrichment.

Prelims Focus
Key facts, concepts, reports and institutions.
Mains Perspective
Analytical arguments, challenges and way forward.
Daily Revision
Compact coverage for faster and consistent revision.
Updated regularly for UPSC Prelims and Mains
Explore Daily Newspaper Notes