DCOA Mixed Practice Test #172

Question 1

Indulekha novel:‌​‍

Accepted Answer

1889 — First major social novel 1889.‌​‍

Answer

1920

Answer

1947

Answer

1900

Question 2

Padma Awards 2024 top (Vibhushan):‌​‍

Accepted Answer

Vyjayanthimala, LK Advani, Chiranjeevi, M Venkaiah Naidu, Padma Subrahmanyam — 5 Padma Vibhushans.‌​‍

Answer

All 5

Answer

Only 3

Answer

None

Question 3

Learning by insight demonstrated by:‌​‍

Accepted Answer

Köhler's chimp Sultan experiments — Gestalt psychologist. ‌​‍Sudden restructuring of perception → solution. 'Aha moment'.

Answer

Bandura

Answer

Skinner

Answer

Pavlov

Question 4

Largest producer of banana:

Accepted Answer

India — India.

Answer

Philippines

Answer

Ecuador

Answer

Brazil

Question 5

During respiration, the exchange of oxygen and carbon dioxide between the alveoli and the blood occurs primarily through which process?

Accepted Answer

C. Simple diffusion — The exchange of gases (oxygen and carbon dioxide) in the lungs and at the tissue level occurs via simple diffusion. Gases move passively from an area of higher partial pressure to an area of lower partial pressure across the alveolar-capillary membrane. Active transport requires energy, facilitated diffusion involves carrier proteins, and osmosis is specific to water movement.

Answer

A. Facilitated diffusion

Answer

B. Osmosis

Answer

D. Active transport

Question 6

Which Kerala government policy introduced the 'Samagra Shiksha Kerala' (SSK) programme to improve the quality of school education?

Accepted Answer

A. Sarva Shiksha Abhiyan (SSA) — Samagra Shiksha Kerala (SSK) is an extension of the centrally sponsored Sarva Shiksha Abhiyan (SSA), which was launched in Kerala to enhance the quality of school education. The Kerala Education Act and RTE Act are legal frameworks, while KITE is a digital learning platform, making options B, C, and D incorrect.

Answer

B. Kerala Education Act, 1958

Answer

C. Right to Education (RTE) Act, 2009

Answer

D. Kite Virtual Academy (KITE)

Question 7

A couple is planning to have a child. The father is a known carrier for a rare autosomal recessive genetic disorder, while the mother has no family history of the disorder and tests negative for the carrier gene. Based on this information, what is the probability that their child will be affected by this specific recessive genetic disorder?

Accepted Answer

A. 0% — For an autosomal recessive disorder, an individual must inherit two copies of the recessive allele (one from each parent) to be affected. In this scenario, the father is a carrier (heterozygous, e.g., Aa) and the mother is homozygous dominant (AA) as she tested negative and has no family history. A cross between Aa and AA individuals will produce only AA (unaffected) and Aa (carrier) offspring, meaning there is no possibility of an 'aa' (affected) genotype. Therefore, the probability of their child being affected is 0%.

Answer

B. 25%

Answer

C. 50%

Answer

D. 75%

Question 8

A key principle of action research in the classroom emphasizes that the teacher is primarily:

Accepted Answer

B. A reflective practitioner who systematically investigates and improves their own practice. — Action research empowers teachers to be active agents of change within their own classrooms. The teacher is not merely a consumer of others' research (A) or an administrator (C), nor solely a data collector for external parties (D). Instead, they are the primary researcher, engaging in a continuous cycle of inquiry, action, and reflection to enhance their teaching and student learning.

Answer

A. A passive recipient of research findings from educational experts.

Answer

C. An administrative authority who dictates research topics to subordinates.

Answer

D. A data entry clerk responsible for compiling quantitative statistics for external analysis.

Question 9

Periyar saves:‌​‍

Accepted Answer

Tigers and elephants — Tigers, elephants, Nilgiri langur.‌​‍

Answer

Hornbill only

Answer

Rhino

Answer

Lion

Question 10

Osmotic pressure π:‌​‍

Accepted Answer

π = CRT (van't Hoff equation) — Colligative property. ‌​‍Isotonic solutions have same π. Saline IV fluid is isotonic with blood.

Answer

π = RT

Answer

π = V/T

Answer

π = P

DCOA Mixed Practice Test #172