DCOA Mixed Practice Test #250

Question 1

RNA full form:‌​‍

Accepted Answer

Ribonucleic Acid — Ribonucleic Acid — helps in protein synthesis.‌​‍

Answer

Reverse Nucleic Acid

Answer

Ribo-Nitrogen Acid

Answer

Redo Nucleic Acid

Question 2

The eye of a cyclone is:‌​‍

Accepted Answer

A calm, clear area at the centre — The eye is a calm, mostly clear area at the centre of a cyclone, surrounded by the destructive eyewall.‌​‍

Answer

The most destructive part

Answer

The outer edge

Answer

The base

Question 3

Ashoka Chakra has:

Accepted Answer

24 spokes — 24 spokes — from Lion Capital of Sarnath.

Answer

22 spokes

Answer

26 spokes

Answer

12 spokes

Question 4

Correct increasing order of elements by atomic number:‌​‍

Accepted Answer

Sodium, Magnesium, Aluminium, Silicon, Phosphorous — Atomic numbers: Na (11) → Mg (12) → Al (13) → Si (14) → P (15).‌​‍

Answer

Magnesium, Aluminium, Phosphorous, Sodium, Silicon

Answer

Sodium, Aluminium, Silicon, Phosphorous, Magnesium

Answer

Aluminium, Phosphorous, Silicon, Sodium, Magnesium

Question 5

In a triangle, the sum of any two sides is:

Accepted Answer

Greater than third — Triangle Inequality Theorem.

Answer

Equal to third

Answer

Less than third

Answer

Equal to product

Question 6

Fluoride deficiency:‌​‍

Accepted Answer

Tooth decay — Fluoride strengthens tooth enamel. Deficiency = dental cavities.‌​‍

Answer

Anaemia

Answer

Goitre

Answer

Night blindness

Question 7

Both NCF 2005 and NEP 2020 advocate for reforms in assessment practices. A significant shift proposed by NEP 2020, building upon NCF 2005's recommendations, is the move towards:

Accepted Answer

C. Holistic, competency-based assessment that promotes learning and development. — Both NCF 2005 and NEP 2020 emphasize moving away from rote learning and towards assessments that are holistic, competency-based, and promote learning rather than just testing recall. NEP 2020 further strengthens this by proposing reforms like PARAKH. Options A and D represent practices that both frameworks aim to reduce or reform, while B is specific to higher education admissions, not the general principle of school assessment reform.

Answer

A. Increased reliance on summative assessments at the end of academic years.

Answer

B. Standardized entrance exams for all higher education admissions nationwide.

Answer

D. Mandatory board exams for grades 5 and 8 to ensure basic learning outcomes.

Question 8

Unlike Spearman's Two-Factor theory, which posits a single overarching general intelligence (g-factor) influencing all cognitive tasks, Howard Gardner's theory of Multiple Intelligences emphasizes:

Accepted Answer

B. The existence of several independent intelligences, each with its unique neurological basis. — Howard Gardner's theory of Multiple Intelligences directly contrasts with unitary theories like Spearman's by proposing that intelligence is not a single entity but rather a collection of distinct, independent abilities. Each intelligence, according to Gardner, operates relatively autonomously and has its own developmental trajectory and neurological basis. This offers a broader view of human potential beyond traditional academic measures.

Answer

A. The importance of emotional intelligence in academic success.

Answer

C. The role of practical intelligence in adapting to real-world situations.

Answer

D. The hierarchical organization of cognitive abilities.

Question 9

Acetic acid is commonly known as:

Accepted Answer

Vinegar — Acetic acid CH₃COOH; ~5% solution is vinegar.

Answer

Wood alcohol

Answer

Salt

Answer

Spirit of salt

Question 10

Pre-historic site in Kerala:‌​‍

Accepted Answer

Edakkal caves, Marayoor dolmens — Multiple sites.‌​‍

Answer

Only Edakkal

Answer

Only Marayoor

Answer

None

DCOA Mixed Practice Test #250