DCOA Mixed Practice Test #292

Question 1

Dr. Sharma, a research scientist, is faced with a completely novel experimental challenge for which no standard protocols or established solutions exist. She spends considerable time brainstorming unconventional approaches, combining disparate ideas from different fields, and eventually devises an entirely new methodology that successfully addresses the problem. This capability primarily reflects which component of Robert Sternberg's Triarchic Theory of Intelligence?

Accepted Answer

B. Experiential (creative) intelligence. — Sternberg's experiential (creative) intelligence is characterized by the ability to deal with novelty and to automate information processing. Dr. Sharma's approach of brainstorming unconventional methods and combining disparate ideas to solve a novel problem perfectly illustrates the creative aspect of experiential intelligence, distinct from analytical problem-solving or adapting to an existing context.

Answer

A. Componential (analytical) intelligence.

Answer

C. Contextual (practical) intelligence.

Answer

D. Crystallized intelligence.

Question 2

A laboratory technician is performing a preliminary test for the presence of alkaloids in a plant extract. Which of the following reagents, commonly known as Mayer's reagent, would be used to detect alkaloids by forming a cream-colored precipitate?

Accepted Answer

C. Potassium Mercuric Iodide — Mayer's reagent is chemically known as potassium mercuric iodide and is widely used to precipitate alkaloids as cream-colored complexes. Wagner's reagent (iodine in potassium iodide) produces a reddish-brown precipitate, while Hager's and Scheibler's reagents also precipitate alkaloids but are distinct from Mayer's reagent.

Answer

A. Iodine in Potassium Iodide (Wagner's reagent)

Answer

B. Picric acid (Hager's reagent)

Answer

D. Phosphotungstic acid (Scheibler's reagent)

Question 3

Noble gases are:‌​‍

Accepted Answer

Inert/unreactive — Noble gases (He, Ne, Ar, Kr, Xe, Rn) are inert — full outer shell.‌​‍

Answer

Very reactive

Answer

Liquid at room temp

Answer

Radioactive

Question 4

A rapidly developing urban area in Kerala is grappling with escalating levels of air pollution, primarily from vehicular emissions and industrial activities, leading to public health concerns and environmental degradation. Which of the following integrated strategies would be most effective and sustainable for long-term air quality improvement?

Accepted Answer

C. Promoting significant investment in electric vehicle infrastructure and public transport, enforcing stringent emission standards for both vehicles and industries, and facilitating the transition to cleaner energy sources. — Option C offers the most comprehensive and sustainable long-term solution by addressing the root causes of air pollution through technological advancements (electric vehicles, cleaner energy), infrastructure development (public transport), and robust regulatory enforcement. Option A is a partial and temporary measure, and relocating industries only shifts the problem. Option B treats symptoms rather than causes and is neither sustainable nor cost-effective. Option D is crucial for public health but does not directly mitigate the sources of pollution.

Answer

A. Implementing a strict 'odd-even' road rationing scheme for private vehicles and relocating all major polluting industries to designated industrial zones outside the city limits.

Answer

B. Focusing exclusively on establishing large-scale air purification towers in public spaces and providing free respiratory masks to all residents.

Answer

D. Initiating mass awareness campaigns on the health impacts of air pollution and establishing more health clinics to treat pollution-related illnesses.

Question 5

Habitus (Bourdieu) refers to:‌​‍

Accepted Answer

Internalised dispositions shaped by one's social position — Habitus: embodied schemes of perception, thought, action — how class/culture shapes individual practice unconsciously.‌​‍

Answer

Diet

Answer

Location

Answer

Habits

Question 6

Kerala's first Film Censor Board chair Malayalam:

Accepted Answer

Adoor — Various over years — Adoor chaired FTII.

Answer

M.T. Vasudevan Nair

Answer

Shahji

Answer

None

Question 7

Banasura Sagar Dam, the largest earth dam in India, is in which district?

Accepted Answer

Wayanad — Banasura Sagar Dam in Wayanad is the largest earth dam in India and the second largest in Asia.

Answer

Idukki

Answer

Palakkad

Answer

Thrissur

Question 8

Baking soda chemical name:‌​‍

Accepted Answer

Sodium bicarbonate — NaHCO₃ — Sodium bicarbonate (Sodium hydrogen carbonate).‌​‍

Answer

Sodium hydroxide

Answer

Sodium carbonate

Answer

Sodium chloride

Question 9

Which acid is found in vinegar?‌​‍

Accepted Answer

Acetic acid — Vinegar contains Acetic acid (CH₃COOH). ‌​‍Citric acid = lemon. HCl = stomach. ‌​‍H₂SO₄ = car batteries.

Answer

Citric acid

Answer

Hydrochloric acid

Answer

Sulphuric acid

Question 10

The NIPUN Bharat Mission, launched as part of the NEP 2020 implementation, aims to achieve foundational literacy and numeracy for all children. By when is it envisioned that every child in India will achieve the desired learning competencies in reading, writing, and arithmetic at the primary level?

Accepted Answer

B. 2027 — The NIPUN Bharat Mission, an initiative under the NEP 2020, sets a national goal for all children to achieve foundational literacy and numeracy by the end of Grade 3 by the academic year 2026-27. Therefore, 2027 is the closest and most appropriate target year among the given options.

Answer

A. 2025

Answer

C. 2030

Answer

D. 2035

DCOA Mixed Practice Test #292