DCOA Mixed Practice Test #729

Question 1

National Education Day, observed on November 11th, celebrates the birth anniversary of India's first Education Minister, Maulana Abul Kalam Azad. A school aims to truly embody the spirit of this day. Which of the following initiatives would most appropriately reflect its core purpose?

Accepted Answer

C. Hosting a panel discussion on the evolution of India's education system post-independence and the vision for universal education. — National Education Day commemorates Maulana Abul Kalam Azad's birth anniversary and his pivotal role as India's first Education Minister in shaping the post-independence education system, including advocating for universal elementary education. A panel discussion on the evolution and vision of the education system directly reflects his foundational contributions. Options A, B, and D, while valuable, do not as directly align with Azad's specific legacy celebrated on this day.

Answer

A. Organizing a 'Young Scientists Fair' to promote innovation in STEM fields.

Answer

B. Conducting a felicitation ceremony for outstanding teachers in the district.

Answer

D. Launching a campaign to promote literacy among adult learners in the local community.

Question 2

Who is the chairperson of the 16th Finance Commission of India?‌​‍

Accepted Answer

Dr. Arvind Panagariya — Dr Arvind Panagariya was appointed chair of the 16th Finance Commission in December 2023.‌​‍

Answer

Shaktikanta Das

Answer

Nand Kishore Singh

Answer

Jagdish Bhagwati

Question 3

Where was the famous newspaper 'Swadeshabhimani' started by Vakkom Abdul Khader Maulavi?‌​‍

Accepted Answer

Anchuthengu — Swadeshabhimani was launched in 1905 from Anchuthengu (Anjengo).‌​‍

Answer

Attingal

Answer

Kannur

Answer

Cochin

Question 4

Adequate ventilation in indoor spaces is crucial for preventing the spread of respiratory infections. Which of the following is the primary mechanism by which good ventilation helps reduce transmission?

Accepted Answer

B. It dilutes airborne pathogens, reducing their concentration in the air. — Good ventilation primarily helps prevent the spread of respiratory infections by diluting airborne pathogens. By introducing fresh air and removing stale air, it reduces the concentration of infectious particles in indoor environments, thereby lowering the risk of inhalation by occupants. While some filters can remove particles, and temperature/humidity can affect pathogen survival, dilution is the main principle of ventilation for infection control.

Answer

A. It increases the humidity, making the air less conducive for pathogen survival.

Answer

C. It filters out all airborne particles, including viruses and bacteria.

Answer

D. It raises the ambient temperature, deactivating heat-sensitive microbes.

Question 5

A primary school teacher wants to introduce the concept of 'parts of a plant' to her students, ensuring active participation and visual understanding. Which teaching aid would be most appropriate for this lesson, promoting direct observation and discussion?

Accepted Answer

C. A real plant brought into the classroom, along with labeled flashcards. — Bringing a real plant (Option C) allows for direct observation, tactile engagement, and hands-on learning, which is highly effective for primary students. Labeled flashcards further aid in vocabulary development. Textbook diagrams, videos, or posters (Options A, B, D) are useful but lack the direct, multi-sensory experience provided by a real specimen, reducing the potential for active participation and deeper understanding.

Answer

A. A detailed textbook diagram of a plant.

Answer

B. A pre-recorded video documentary on plant growth.

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D. A set of laminated posters depicting various plant types.

Question 6

The International Court of Justice (ICJ) is the principal judicial organ of the United Nations. Which of the following cases would the ICJ be most likely to hear?

Accepted Answer

D. A boundary dispute between two states that are parties to the ICJ Statute. — Option D is correct because the ICJ primarily hears disputes between states (as per Article 36 of the ICJ Statute). Option A is unlikely as trade disputes are typically handled by specialized tribunals like the WTO. Option B falls under domestic jurisdiction unless the state has accepted ICJ jurisdiction. Option C is not an ICJ mandate, as extradition is handled through bilateral treaties or international conventions.

Answer

A. A dispute between two countries over the interpretation of a bilateral trade agreement.

Answer

B. A claim by a private citizen against their own government for human rights violations.

Answer

C. A case involving the extradition of a fugitive from one country to another.

Question 7

IP version 4 address format:

Accepted Answer

32-bit, 4 octets — ~4.3 billion addresses. IPv6: 128-bit (2^128 addresses). IPv4 exhaustion led to IPv6 adoption. Dual-stack transition.

Answer

64-bit

Answer

128-bit

Answer

8-bit

Question 8

The founder of N.S.S. (Nair Service Society) in Kerala was:‌​‍

Accepted Answer

Mannathu Padmanabhan — Mannathu Padmanabhan founded NSS in 1914.‌​‍

Answer

Ayyankali

Answer

Sree Narayana Guru

Answer

Vagbhatananda

Question 9

Hall-Héroult process extracts:

Accepted Answer

Aluminium (electrolysis of Al₂O₃ in molten cryolite) — Cryolite (Na₃AlF₆) lowers m.p. from 2000°C to ~950°C. Carbon anode, steel cathode.

Answer

Iron

Answer

Copper

Answer

Zinc

Question 10

A teacher observes that a student consistently performs well in a particular subject and spends extra time on related projects, even without the promise of rewards or high grades. The student expresses genuine enjoyment and curiosity about the subject matter. This behavior is primarily indicative of:

Accepted Answer

B. Intrinsic motivation, arising from inherent interest and satisfaction. — The correct answer is B. Intrinsic motivation is characterized by engaging in an activity for its inherent satisfaction, enjoyment, or interest, as described in the scenario. Options A and D are examples of extrinsic motivators, which are external to the task itself, while C (amotivation) implies a lack of motivation altogether, which contradicts the student's behavior.

Answer

A. Extrinsic motivation, driven by future career prospects.

Answer

C. Amotivation, as there are no clear external incentives.

Answer

D. Compliance, due to peer pressure and classroom norms.

DCOA Mixed Practice Test #729