Best UPSC IAS Coaching in Najafgarh

UPSC & State PSC Special: Uttarkashi Flash Flood 2025 Practice Quiz

Q1. The recent Uttarkashi flash flood (Aug 2025) was triggered by which natural event?

a) Sudden glacier lake outburst

b) Landslide after earthquake

c) Cloudburst followed by debris flow

d) Dam breach due to heavy rainfall

Q2. Which of the following agencies are currently involved in the Uttarkashi rescue operations?

1. NDRF
2. ITBP
3. SDRF
4. Indian Army

Choose the correct code:

a) 1 and 4 only

b) 1, 2 and 3 only

c) 1, 2, 3 and 4

d) 2 and 3 only

Q3. Dharali village, which witnessed massive destruction, is located on the route to which of the following Char Dham shrines?

a) Yamunotri Dham

b) Badrinath Dham

c) Kedarnath Dham

d) Gangotri Dham

Q4. Which of the following factors have been repeatedly cited by environmentalists as amplifying the frequency and intensity of disasters like the Uttarkashi flood?

1. Climate change
2. Unregulated hill construction
3. Deforestation
4. Melting glaciers

Select the correct answer: a) 1 and 4 only

b) 1, 2 and 3 only

c) 2 and 3 only

d) 1, 2, 3 and 4

Q5. According to the India Meteorological Department (IMD), which colour-coded alert represents “extremely heavy rainfall and extreme danger”, as issued during this disaster?

a) Yellow

b) Orange

c) Red

d) Black

Q6. (Assertion-Reason)

Assertion (A): The Himalayan region is highly prone to flash floods during monsoon. Reason (R): The steep slopes, loose soil structure, and rapid snowmelt increase the velocity of water flow.

Choose the correct option: a) Both A and R are true, and R is the correct explanation of A b) Both A and R are true, but R is not the correct explanation of A c) A is true but R is false d) A is false but R is true

Q7. Which of the following previous disasters is most similar in cause and impact to the Uttarkashi 2025 flood?

a) 2004 Indian Ocean Tsunami

b) 2013 Kedarnath Flood

c) 1999 Odisha Super Cyclone

d) 2005 Mumbai Flood

Q8. Match the disasters with their respective years:

A (Disaster)

B (Year)

1. Kedarnath Flood

a) 2025

2. Rishiganga Disaster

b) 2013

3. Uttarkashi Dharali Flash Flood

c) 2021

4. Malpa Landslide

d) 1998

Codes: a) 1‑b, 2‑c, 3‑a, 4‑d

b) 1‑a, 2‑b, 3‑c, 4‑d

c) 1‑d, 2‑a, 3‑b, 4‑c

d) 1‑b, 2‑a, 3‑d, 4‑c

Q9. Match the following Himalayan rivers with their states:

A (River)

B (State)

1. Bhagirathi

a) Himachal Pradesh

2. Mandakini

b) Uttarakhand

3. Teesta

c) Sikkim

4. Chenab

d) Jammu & Kashmir

Codes: a) 1‑b, 2‑b, 3‑c, 4‑d

b) 1‑a, 2‑b, 3‑d, 4‑c

c) 1‑c, 2‑a, 3‑b, 4‑d

d) 1‑b, 2‑c, 3‑a, 4‑d

Q10. On an outline map of India, identify and mark the following:

1. Dharali village in Uttarkashi district
2. Gangotri Glacier (source of Bhagirathi River)
3. Tehri Dam
4. Rishiganga project site

Q11. Arrange the following locations from north to south on a map of Uttarakhand:

• Kedarnath
• Gangotri
• Yamunotri
• Badrinath

Q12. Consider the following statements about the Uttarkashi flash flood (2025):

1. It occurred due to a sudden cloudburst near Dharali village.
2. Dharali lies on the route to Kedarnath Dham.
3. Multiple agencies including Army, NDRF, SDRF, and ITBP are involved in rescue operations.

Which of the above statements is/are correct?

a) 1 and 2 only

b) 1 and 3 only

c) 2 and 3 only

d) 1, 2 and 3

Q13. Which of the following are the effects of cloudburst in the Himalayan region?

1. Landslides and road blockages
2. Flash floods and river overflow
3. Melting glaciers due to sudden heating
4. Collapse of hydro projects

Select the correct answer: a) 1 and 2 only

b) 1, 2 and 4

c) 2 and 3 only

d) 1, 2, 3 and 4

Q14. Arrange the following events in the order of their occurrence:

1. Uttarkashi Dharali flood
2. Rishiganga disaster
3. Kedarnath floods
4. Malpa landslide

Options:

a) 2, 3, 1, 4

b) 4, 3, 2, 1

c) 3, 4, 2, 1

d) 4, 2, 1, 3

Q15. The India Meteorological Department (IMD) uses a colour-coded weather alert system. Match the colour with its meaning:

Colour

Meaning

1. Yellow

a) Extremely heavy rainfall, take action

2. Orange

b) Keep watch, be updated

3. Red

c) Be prepared for action

4. Green

d) No warning

Codes: a) 1‑b, 2‑c, 3‑a, 4‑d

b) 1‑c, 2‑a, 3‑b, 4‑d

c) 1‑b, 2‑a, 3‑c, 4‑d

d) 1‑d, 2‑c, 3‑b, 4‑a

Q16. “Experts argue that unregulated construction and deforestation have made Himalayan towns more vulnerable to flash floods.”

Which of the following actions can help mitigate such disasters?

1. Strict enforcement of environmental clearance norms
2. Ban on construction in eco-sensitive zones
3. Community-based early warning systems
4. Afforestation and slope stabilization

Select the correct answer: a) 1 and 3 only

b) 1, 2 and 4 only

c) 2, 3 and 4 only

d) 1, 2, 3 and 4

Q17. Dharali village, affected by the Uttarkashi flood, lies in which river valley?

a) Bhagirathi

b) Mandakini

c) Alaknanda

d) Yamuna

Q18. Which physiographic feature makes Uttarkashi prone to flash floods and landslides?

1. Steep slopes and narrow valleys
2. High rainfall concentration in short duration
3. Young and unstable mountains
4. Glacial lake formation

Select the correct code:

a) 1 and 2 only

b) 1, 2 and 3 only

c) 2 and 4 only

d) 1, 2, 3 and 4

Q19. Which type of rainfall is most commonly associated with cloudburst events in the Himalayas?

a) Convectional rainfall

b) Orographic rainfall

c) Cyclonic rainfall

d) Frontal rainfall

Q20. The Bhagirathi river, which flows through Uttarkashi, ultimately merges with which river to form the Ganga?

a) Yamuna

b) Alaknanda

c) Mandakini

d) Ramganga

Q21. Identify the correct sequence of valleys from west to east in Uttarakhand:

a) Yamuna – Bhagirathi – Mandakini – Alaknanda

b) Bhagirathi – Yamuna – Mandakini – Alaknanda

c) Mandakini – Bhagirathi – Alaknanda – Yamuna

d) Yamuna – Alaknanda – Mandakini – Bhagirathi

Q22. Which of the following Himalayan ranges pass through Uttarkashi district?

a) Pir Panjal and Dhauladhar

b) Kumaon and Garhwal Himalayas

c) Zaskar and Ladakh

d) Mahabharat and Sivalik

Q23. Which of the following are consequences of unregulated hydroelectric projects in Himalayan regions?

1. Increased landslides
2. Riverbed erosion
3. Silt accumulation in reservoirs
4. Triggering of flash floods

Select the correct answer:

a) 1 and 4 only

b) 1, 2 and 3 only

c) 1, 2, 3 and 4

d) 2 and 3 only

Q24. Which of the following glaciers feed the Bhagirathi river system?

1. Gangotri Glacier
2. Khatling Glacier
3. Pindari Glacier
4. Dokrani Glacier

Select the correct code:

a) 1 and 2 only

b) 1 and 4 only

c) 1, 2 and 4

d) 1, 2, 3 and 4

Q25. Which of the following regions is most prone to cloudbursts in India?

a) Western Ghats

b) Indo-Gangetic Plains

c) Trans-Himalayan region

d) Thar Desert

1. c

2. c

3. d

4. d

5. c

6. a

7. b

8. a

9. a

10. [Map-based question – mark locations as mentioned]

11. Gangotri – Yamunotri – Kedarnath – Badrinath (North to South order)

12. b

13. b

14. b

15. a

16. d

17. a

18. d

19. b

20. b

21. a

22. b

23. c

24. c

25. c