Plus 2 Lecturer Mixed Practice Test #763

Question 1

The largest artery in the human body is:‌​‍

Accepted Answer

Aorta — The aorta carries oxygenated blood from the left ventricle to the body.‌​‍

Answer

Pulmonary artery

Answer

Carotid artery

Answer

Vena cava

Question 2

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 3

On 21 January 2022, three states observed their 50th Statehood Day. ‌​‍Which state is NOT one of these three?

Accepted Answer

Nagaland — Manipur, Meghalaya and Tripura attained statehood on 21 January 1972; Nagaland became a state on 1 December 1963.‌​‍

Answer

Meghalaya

Answer

Manipur

Answer

Tripura

Question 4

Lyman series (hydrogen) transitions end at:

Accepted Answer

n=1 (UV) — Balmer (n=2, visible), Paschen (n=3), Brackett (n=4), Pfund (n=5). All in IR except Lyman and Balmer.

Answer

n=2 (visible)

Answer

n=3 (IR)

Answer

n=4

Question 5

Chloroplasts contain:‌​‍

Accepted Answer

Chlorophyll, thylakoids, stroma, own DNA — Site of photosynthesis. ‌​‍Grana (stacks of thylakoids). Endosymbiotic origin from cyanobacteria.

Answer

Only starch

Answer

Only water

Answer

Only chlorophyll

Question 6

'He is (A) a (B) honest (C) man (D).' Error is in:‌​‍

Accepted Answer

B — 'Honest' has silent 'h' — starts with vowel sound. ‌​‍Use 'an' not 'a'. Correct: 'an honest man'.

Answer

A

Answer

C

Answer

D

Question 7

An ecological pyramid showing decreasing energy at higher trophic levels is a:‌​‍

Accepted Answer

Energy pyramid (always upright) — ~10% energy transfer between trophic levels → energy pyramid always tapers upward.‌​‍

Answer

Cylindrical

Answer

Pyramid of numbers only

Answer

Inverted pyramid

Question 8

'Mathematics (A) are (B) my favourite (C) subject (D).' Error is in:‌​‍

Accepted Answer

B — 'Mathematics' is treated as singular. ‌​‍Correct: 'Mathematics is my favourite subject.'

Answer

A

Answer

C

Answer

D

Question 9

In the context of community health, what is the primary objective of health education initiatives regarding non-communicable diseases (NCDs) like diabetes and hypertension?

Accepted Answer

A. To equip individuals with the knowledge and skills to adopt healthy lifestyles and manage their conditions effectively. — The primary objective of health education for NCDs is to empower individuals with knowledge about risk factors, prevention strategies, and self-management skills to adopt healthy lifestyles and effectively manage their conditions. While early diagnosis and cost reduction are important, they are often outcomes or secondary objectives, and promoting specific treatments is not the overarching goal of general health education.

Answer

B. To ensure early diagnosis through mass screening campaigns for all community members.

Answer

C. To reduce healthcare costs by minimizing the need for hospital admissions.

Answer

D. To promote the use of advanced pharmacological treatments for NCDs.

Question 10

Kavalam Narayana Panicker:‌​‍

Accepted Answer

Theatre — Theatre doyen.‌​‍

Answer

Cinema

Answer

Music

Answer

Novel

Plus 2 Lecturer Mixed Practice Test #763