Surveyor Mixed Practice Test #884

Question 1

A rapidly urbanizing coastal district in Kerala is grappling with escalating water pollution, primarily from inadequately treated municipal wastewater and non-point sources like agricultural runoff and plastic litter. Which of the following integrated strategies would be most effective and sustainable for long-term water quality improvement?

Accepted Answer

C. Developing a decentralized wastewater treatment network, promoting sustainable agricultural practices, establishing comprehensive solid waste management with emphasis on plastic recycling, and fostering community participation in water body protection. — Option C represents the most effective and sustainable integrated strategy. It addresses both point (wastewater) and non-point (agricultural runoff, plastic litter) sources through a multi-faceted approach including decentralized treatment, source reduction, proper waste management, and community engagement. Options A and B are insufficient as they focus on only one or two aspects, neglecting a holistic approach. Option D is an unsustainable approach that merely displaces pollution and can harm marine ecosystems, rather than resolving the core issues.

Answer

A. Solely focusing on upgrading all existing Sewage Treatment Plants (STPs) to tertiary treatment levels and increasing their capacity.

Answer

B. Implementing a stringent ban on single-use plastics across the district and imposing heavy penalties for any discharge of untreated wastewater.

Answer

D. Constructing long ocean outfalls to discharge all treated and partially treated wastewater far into the deep sea, coupled with periodic coastal clean-up drives.

Question 2

Divide ₹720 in ratio 4:5:‌​‍

Accepted Answer

₹320, ₹400 — 9 parts = 720. Each = 80. 320 and 400.‌​‍

Answer

₹280, ₹440

Answer

₹400, ₹320

Answer

₹300, ₹420

Question 3

Niagara Falls height:

Accepted Answer

51m — Horseshoe Falls ~51m.

Answer

20m

Answer

100m

Answer

200m

Question 4

The Vembanad Lake, a Ramsar site, is primarily fed by which of the following river systems?

Accepted Answer

B. Pamba and Manimala — The Vembanad Lake receives significant inflow from the Pamba and Manimala rivers, along with other smaller rivers. Periyar and Muvattupuzha flow into the Arabian Sea separately, while Meenachil and Kallada drain into different parts of Kerala.

Answer

A. Periyar and Muvattupuzha

Answer

C. Meenachil and Kallada

Answer

D. Achankoil and Kallada

Question 5

Dal Lake in:‌​‍

Accepted Answer

Srinagar — Srinagar, Kashmir.‌​‍

Answer

Udaipur

Answer

Nainital

Answer

Shimla

Question 6

The Western Ghats are also known as:‌​‍

Accepted Answer

Sahyadri — The Western Ghats are called Sahyadri; they run parallel to India's west coast.‌​‍

Answer

Aravalli

Answer

Nilgiri

Answer

Purvanchal

Question 7

We shall go for a walk when it ___ raining.‌​‍

Accepted Answer

stops — Time clause with future meaning takes present simple: 'when it stops'.‌​‍

Answer

stopped

Answer

stopping

Answer

stop

Question 8

Great Barrier Reef length:‌​‍

Accepted Answer

2300 km — World's largest coral system.‌​‍

Answer

3000 km

Answer

500 km

Answer

1000 km

Question 9

Feminism waves:‌​‍

Accepted Answer

First (suffrage), Second (1960s-80s equality/body), Third (1990s intersectionality), Fourth (online) — India: 19th century reformers; 1970s autonomous movement. ‌​‍MeToo movement (2018) global digital wave.

Answer

Only two

Answer

No waves

Answer

Only one

Question 10

The drug thalidomide is known for its tragic history due to severe teratogenic effects. Chemically, thalidomide exists as a racemic mixture of two enantiomers. Which statement best explains the pharmacological significance of these enantiomers?

Accepted Answer

C. The enantiomers readily interconvert in vivo, making their separation for clinical use impractical. — While one enantiomer (R-thalidomide) was initially thought to be responsible for the sedative effect and the other (S-thalidomide) for teratogenicity, it's crucial that these enantiomers rapidly interconvert in vivo under physiological conditions. This interconversion means that even if a single enantiomer were administered, both forms would be present in the body, making it impossible to avoid the teratogenic effects by administering only one isomer.

Answer

A. Both enantiomers are equally potent and have similar therapeutic and toxic effects.

Answer

B. One enantiomer is therapeutically active, while the other is responsible for the teratogenic effects.

Answer

D. The therapeutic effect is solely due to the R-enantiomer, and the S-enantiomer is inactive.

Surveyor Mixed Practice Test #884