LGS Mixed Practice Test #164

Question 1

The unit of inductance is the:

Accepted Answer

Henry — Henry (H): 1 H = 1 V·s/A.

Answer

Farad

Answer

Weber

Answer

Tesla

Question 2

BJP's 2024 strategy surprise:‌​‍

Accepted Answer

UP loss, coalition dependence — Expected 400+, got 240.‌​‍

Answer

Landslide

Answer

Expected

Answer

Solo majority

Question 3

Payyambalam beach:‌​‍

Accepted Answer

Kannur — Kannur town beach.‌​‍

Answer

Kollam

Answer

Kozhikode

Answer

Kasaragod

Question 4

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 5

Bystander effect — Kitty Genovese case led to study by:‌​‍

Accepted Answer

Latané and Darley — diffusion of responsibility — Presence of others reduces helping behavior. Social loafing similar phenomenon.‌​‍

Answer

Asch

Answer

Freud

Answer

Milgram

Question 6

Telescope is used to observe:‌​‍

Accepted Answer

Distant objects (stars, planets) — Telescopes magnify distant objects; refracting (Galilean, Keplerian) and reflecting types.‌​‍

Answer

X-rays

Answer

Small objects

Answer

Underwater

Question 7

KSDP — Kerala State Drug & Pharma:

Accepted Answer

Alappuzha — Alappuzha KSDP.

Answer

TVM

Answer

Kochi

Answer

Thrissur

Question 8

Which of the following is a key feature of the 'Keralam-Malayalam University' initiative under the Kerala Education Policy 2022?

Accepted Answer

B. Promoting Malayalam language and literature through higher education — The Kerala Education Policy 2022 proposes a 'Keralam-Malayalam University' to promote the Malayalam language and literature. It does not involve merging universities (A), distributing laptops (C), or focusing solely on medical education (D).

Answer

A. Merging all universities in Kerala into one

Answer

C. Providing free laptops to all college students in Kerala

Answer

D. Establishing international standard medical colleges

Question 9

Esterification (Fischer):‌​‍

Accepted Answer

Acid + alcohol → ester + water (H₂SO₄ catalyst, reversible) — Le Chatelier: excess one reactant or remove water → shifts right. ‌​‍Fruity smell of esters.

Answer

Only acid

Answer

Acid + base

Answer

Alcohol + alcohol

Question 10

A medication designed to treat myasthenia gravis works by inhibiting the enzyme acetylcholinesterase. What is the physiological rationale behind this treatment?

Accepted Answer

C. To increase the availability of acetylcholine at the neuromuscular junction. — Myasthenia gravis is an autoimmune disorder where acetylcholine receptors are destroyed. By inhibiting acetylcholinesterase, the enzyme that breaks down acetylcholine, the concentration of acetylcholine at the neuromuscular junction increases, allowing it to better stimulate the remaining receptors and improve muscle function. Decreasing release or enhancing breakdown would worsen the condition, and blocking receptors is counterproductive.

Answer

A. To decrease the release of acetylcholine at the neuromuscular junction.

Answer

B. To enhance the breakdown of acetylcholine, reducing muscle stimulation.

Answer

D. To block acetylcholine receptors, preventing overstimulation.

LGS Mixed Practice Test #164