DCOA Mixed Practice Test #749

Question 1

A primary school teacher is planning to introduce the concept of 'states of matter' (solid, liquid, gas) to her students. Which type of teaching aid would be most effective for initial engagement and concrete understanding?

Accepted Answer

C. Real-life objects like ice, water, and steam (carefully demonstrated). — For primary students, concrete experiences with real objects are crucial for understanding abstract concepts like states of matter. While other options have their uses, direct observation and manipulation of real examples provide the most foundational and memorable learning experience at this stage.

Answer

A. A detailed chart displaying the molecular structure of each state.

Answer

B. A video animation illustrating phase changes at a molecular level.

Answer

D. A worksheet with definitions and examples of each state.

Question 2

Thommankuthu Falls:

Accepted Answer

Idukki — Seven-step falls Idukki.

Answer

Ernakulam

Answer

Kottayam

Answer

Pathanamthitta

Question 3

Hyderabad was integrated with India through:

Accepted Answer

Operation Polo (police action, 1948) — Operation Polo (13–18 Sept 1948) ended the Nizam's refusal and integrated Hyderabad.

Answer

Instrument of Accession

Answer

Referendum

Answer

UN mediation

Question 4

INS Arihant is:‌​‍

Accepted Answer

Nuclear submarine — India's first nuclear ballistic missile submarine.‌​‍

Answer

Corvette

Answer

Destroyer

Answer

Aircraft carrier

Question 5

Cellulose is polymer of:

Accepted Answer

β-glucose (β-1,4 linkages) — Straight chains, hydrogen bonded. Humans lack cellulase — can't digest. Ruminants and termites have symbiotic microbes.

Answer

α-glucose

Answer

Fructose

Answer

Mannose

Question 6

Kerala's universities count:‌​‍

Accepted Answer

20+ — 20+ state and central universities.‌​‍

Answer

10

Answer

30

Answer

5

Question 7

The Kerala Solid Waste Management Project (KSWMP) is a significant initiative aimed at modernizing waste management practices across the state. Which of the following statements accurately reflects a core strategy or funding aspect of KSWMP?

Accepted Answer

B. The project receives substantial financial assistance from international agencies like the World Bank and Asian Infrastructure Investment Bank (AIIB). — KSWMP is indeed supported by significant loans from the World Bank and AIIB, crucial for its implementation and scale. While waste-to-energy is a component, the project emphasizes a more integrated and decentralized approach, not just large-scale centralized plants (A). Plastic bans (C) are related but a separate policy, and the project is not solely state-funded (D).

Answer

A. It primarily focuses on establishing large-scale centralized waste-to-energy plants in every district headquarters.

Answer

C. Its main objective is to completely ban the use of plastic packaging materials by 2025 across all urban local bodies.

Answer

D. The project is entirely funded by the state government, emphasizing indigenous technological solutions.

Question 8

Under the 'Ayushman Bharat Pradhan Mantri Jan Arogya Yojana (AB-PMJAY)', which of the following is a key feature of the scheme?

Accepted Answer

B. It offers cashless secondary and tertiary care hospitalization up to ₹5 lakh per family per year. — AB-PMJAY is a flagship scheme under Ayushman Bharat that provides cashless secondary and tertiary care hospitalization up to ₹5 lakh per family per year for the poorest 40% of the population. Option A is incorrect as it targets a specific age group rather than the economically weaker sections. Option C is incorrect because while pre-authorization is required for some procedures, it is not mandated for all. Option D is incorrect as the scheme covers both public and empanelled private hospitals.

Answer

A. It provides free healthcare services to all citizens above 65 years of age.

Answer

C. It mandates pre-authorization for all medical procedures to ensure cost control.

Answer

D. It covers only government-run hospitals and primary healthcare centers.

Question 9

Ms. Radha wants to foster collaborative learning among her students for a project on environmental conservation. Which ICT tool would be most suitable for students to collectively research, share ideas, and co-create a knowledge base, even when they are not physically together?

Accepted Answer

B. Online discussion forums and wikis — Online discussion forums facilitate idea sharing and asynchronous collaboration, while wikis allow students to collectively research, compile information, and co-create a shared knowledge base, making them highly effective for group projects where students may not be in the same location. While Google Docs/Slides are excellent for specific document/presentation co-creation, forums and wikis offer broader platforms for initial research, idea exchange, and building a collective knowledge resource.

Answer

A. Video conferencing platforms (e.g., Zoom, Google Meet)

Answer

C. Google Docs and Google Slides

Answer

D. Educational gaming platforms

Question 10

Deoxygenated blood pumped to lungs by:‌​‍

Accepted Answer

Right ventricle — Right ventricle → pulmonary artery → lungs.‌​‍

Answer

Right atrium

Answer

Left ventricle

Answer

Left atrium

DCOA Mixed Practice Test #749