DCOA Mixed Practice Test #120

Question 1

Olympic Games 2028 host:‌​‍

Accepted Answer

LA — Los Angeles hosts Summer Olympics 2028.‌​‍

Answer

Sydney

Answer

Paris

Answer

Brisbane

Question 2

A pregnant woman in her second trimester asks about essential nutrients for her baby's development. Which nutrient is crucial for preventing neural tube defects and should be emphasized during antenatal counseling, especially in the periconceptional period?

Accepted Answer

C. Folic Acid; for proper neural tube closure and preventing birth defects. — Folic acid (Vitamin B9) is critically important for preventing neural tube defects (NTDs) such as spina bifida and anencephaly. Supplementation is recommended starting at least one month before conception and continuing through the first trimester, as neural tube closure occurs very early in pregnancy.

Answer

A. Iron; for preventing maternal anemia and promoting fetal growth.

Answer

B. Calcium; for strong bones and teeth development.

Answer

D. Vitamin D; for calcium absorption and bone health.

Question 3

A new policy initiative by the Kerala government aims to streamline inter-departmental coordination for integrated development projects. Which of the following administrative roles is primarily responsible for ensuring effective horizontal coordination among various departments within the State Secretariat?

Accepted Answer

C. The Chief Secretary of the State. — The Chief Secretary is the administrative head of the State Secretariat and the highest-ranking civil servant in the state. Their crucial role involves ensuring effective horizontal coordination among various government departments, facilitating policy implementation, and maintaining overall administrative efficiency. While Ministers provide political direction and Principal Secretaries manage their respective departments, the ultimate responsibility for cross-departmental administrative synergy rests with the Chief Secretary.

Answer

A. The Minister in charge of the specific project.

Answer

B. The Principal Secretary of the Department sponsoring the project.

Answer

D. The Head of the Department (HoD) directly implementing the project.

Question 4

The merger of Travancore and Cochin in 1949, forming the United State of Travancore and Cochin, was a pivotal moment in India's post-independence integration of princely states. Beyond the general policy of princely state integration, which of the following factors primarily accelerated this specific merger?

Accepted Answer

D. Direct pressure from the Government of India, through the States Ministry, to consolidate smaller princely states into viable administrative units. — While factors like administrative benefits (C) and popular sentiment (A) were present, the primary accelerating force behind the Travancore-Cochin merger was the directive from the Government of India's States Ministry, led by Sardar Vallabhbhai Patel and V.P. Menon. The central government actively pushed for the consolidation of smaller princely states to create larger, more stable administrative entities. The communist insurgency (B) became a more significant political factor after the merger.

Answer

A. The immediate popular demand for a unified Malayalam-speaking state across the region.

Answer

B. The strategic necessity to counter growing communist insurgency movements in both states.

Answer

C. The projected administrative and economic benefits from combining resources and streamlining governance.

Question 5

A teacher notices a significant drop in student engagement during group activities. If the teacher decides to employ action research to address this issue, what would be the primary aim of this approach?

Accepted Answer

C. To systematically investigate the problem and implement practical solutions to improve classroom practice. — Action research is primarily focused on solving immediate, practical problems within one's own professional context. Its main aim is to improve current practice through a systematic process of investigation and intervention, rather than generating broad theoretical frameworks or publishing in academic journals as a primary goal. Option C directly reflects this practical and improvement-oriented nature.

Answer

A. To publish findings in an academic journal for peer review.

Answer

B. To develop a theoretical framework explaining student disengagement.

Answer

D. To compare the effectiveness of different teaching methods across various schools.

Question 6

Ms. Devi, a high school teacher, observes that her students struggle with critical thinking in history lessons. She decides to initiate an action research project. What would be the MOST appropriate first step for Ms. Devi to take immediately after identifying this problem?

Accepted Answer

B. Collect data on current student performance in critical thinking through observations, surveys, or assignments. — After identifying a problem, the first crucial step in action research is to gather relevant data to understand the problem in depth and establish a baseline. This data collection (Option B) helps to confirm the problem's existence, identify its scope, and inform the subsequent planning of interventions. While reviewing literature (Option C) is valuable, it typically follows initial data collection or problem refinement, and immediately implementing a solution (Option A) or designing a formal experimental study (Option D) bypasses the investigative phase central to action research.

Answer

A. Immediately introduce a new textbook chapter on critical thinking skills.

Answer

C. Review existing academic literature on critical thinking strategies in history education.

Answer

D. Formulate a hypothesis about the causes of poor critical thinking and design an experimental study.

Question 7

Gauss's law: ∮E·dA = ?‌​‍

Accepted Answer

q/ε₀ (enclosed charge) — Total flux through closed surface depends only on enclosed charge. ‌​‍Useful for symmetric geometries.

Answer

qε₀

Answer

q

Answer

E·r²

Question 8

Marayoor in Idukki is famous for:

Accepted Answer

Natural sandalwood forests — Marayoor is the only place in Kerala with natural sandalwood forests and is also known for jaggery production.

Answer

Coffee plantations

Answer

Rubber estates

Answer

Teak plantations

Question 9

A patient on long-term isoniazid therapy for tuberculosis develops peripheral neuropathy. Which vitamin supplement is typically co-administered with isoniazid to prevent this side effect?

Accepted Answer

B. Vitamin B6 (Pyridoxine) — Isoniazid inhibits pyridoxine (Vitamin B6) metabolism, leading to its deficiency. Pyridoxine deficiency is a common cause of drug-induced peripheral neuropathy. Therefore, Vitamin B6 supplementation is routinely given with isoniazid to prevent this adverse effect. The other B vitamins are not specifically targeted by isoniazid in this manner causing peripheral neuropathy.

Answer

A. Vitamin B1 (Thiamine)

Answer

C. D. Vitamin B12 (Cobalamin)

Answer

D. Folic Acid

Question 10

Greenhouse gases include:

Accepted Answer

CO₂, CH₄, N₂O, water vapour — CO₂, methane, nitrous oxide, water vapour.

Answer

O₂, N₂

Answer

Ar only

Answer

CO

DCOA Mixed Practice Test #120