DCOA Mixed Practice Test #664

Question 1

Which is the smallest national park in Kerala?‌​‍

Accepted Answer

Pampadum Chola — Pampadum Shola NP — smallest (1.318 sq km) in Kerala.‌​‍

Answer

Eravikulam

Answer

Mathikettan Chola

Answer

Anamudi Chola

Question 2

Fear of heights:‌​‍

Accepted Answer

Acrophobia — Acrophobia.‌​‍

Answer

Claustrophobia

Answer

Agoraphobia

Answer

Hydrophobia

Question 3

The Neelakurinji flowers bloom once every:‌​‍

Accepted Answer

12 years — Neelakurinji (Strobilanthes kunthiana) blooms once every 12 years in the hills of Munnar (Idukki).‌​‍

Answer

5 years

Answer

8 years

Answer

15 years

Question 4

New Parliament inaugurated:‌​‍

Accepted Answer

28 May 2023 — 28 May 2023.‌​‍

Answer

15 Aug 2023

Answer

28 May 2022

Answer

28 May 2024

Question 5

Which of the following is a function of ethylene?‌​‍

Accepted Answer

Fruit ripening — Only gaseous hormone. ‌​‍Triple response in seedlings. Used commercially (ethephon, calcium carbide).

Answer

Germination

Answer

Stem elongation

Answer

Cell division

Question 6

A teacher observes that students are struggling to grasp the concept of photosynthesis. According to Vygotsky's theory, which instructional strategy would be most effective to scaffold their learning?

Accepted Answer

B. Collaborating with peers to discuss and construct a model of photosynthesis using provided materials. — Vygotsky emphasized the Zone of Proximal Development (ZPD) and social interaction as key to learning. Option B aligns with this by promoting peer collaboration to construct knowledge, which Vygotsky believed enhances understanding through dialogue and shared activity. Options A and D are teacher-centered and less interactive, while option C lacks scaffolding and peer support.

Answer

A. Providing a pre-made concept map of photosynthesis for students to memorize.

Answer

C. Assigning individual research on photosynthesis with a strict rubric for submission.

Answer

D. Demonstrating photosynthesis through a lecture with detailed slides and notes.

Question 7

Which of the following was a key objective of the Industrial Policy of 1991 in India, which was part of the broader economic reforms (LPG model)?

Accepted Answer

B. To reduce the role of the public sector and promote private enterprise — The Industrial Policy of 1991 aimed to liberalize the economy under the LPG model by reducing the state's role in industry and encouraging private participation. While it did not nationalize industries, it aimed to decrease the public sector's dominance through disinvestment and opening sectors to private players. Higher tariffs and banning FDI were not part of the reforms.

Answer

A. To nationalize all private industries and reduce foreign investment

Answer

C. To impose higher tariffs on imported goods to protect domestic industries

Answer

D. To ban all foreign direct investment (FDI) in strategic sectors

Question 8

The process of adding H₂ to unsaturated oils to convert them to solid fats is:

Accepted Answer

Hydrogenation — Vegetable oils + H₂ (Ni catalyst) → saturated fats (vanaspati, margarine).

Answer

Esterification

Answer

Polymerisation

Answer

Saponification

Question 9

Ottamthullal was introduced by:‌​‍

Accepted Answer

Kunchan Nambiar — Kunchan Nambiar introduced Ottamthullal in the 18th century as a solo dance-story performance.‌​‍

Answer

Thunchaththu Ezhuthachan

Answer

Cherusseri

Answer

Poonthanam

Question 10

Airports in India (operational):‌​‍

Accepted Answer

~150 — Over 150 operational.‌​‍

Answer

500

Answer

~75

Answer

~200

DCOA Mixed Practice Test #664