DCOA Mixed Practice Test #773

Question 1

The gas produced when acid reacts with metal is:‌​‍

Accepted Answer

Hydrogen — Metal + Acid → Salt + Hydrogen gas. The 'pop' test confirms hydrogen.‌​‍

Answer

Oxygen

Answer

Nitrogen

Answer

Carbon Dioxide

Question 2

The 'Gunotsavam' program, periodically conducted in Kerala government and aided schools, primarily aims to achieve which of the following objectives?

Accepted Answer

B. To evaluate the learning outcomes of students and the overall quality of teaching-learning processes and school performance. — Gunotsavam is a comprehensive quality assessment program designed to evaluate the academic performance of students and the effectiveness of the teaching-learning process in schools. It identifies strengths and weaknesses, leading to targeted interventions for overall improvement in educational quality, which aligns with RTE's focus on quality education. Options A, C, and D describe related but not primary objectives of Gunotsavam.

Answer

A. To assess the financial management and infrastructure development of schools across the state.

Answer

C. To facilitate the election and training of School Management Committee (SMC) members and parent representatives.

Answer

D. To provide professional development training exclusively for headmasters on administrative procedures.

Question 3

Which of the following vitamins is most likely to be deficient in a patient with malabsorption due to celiac disease?

Accepted Answer

B. Vitamin B12 — Celiac disease damages the small intestine, particularly the ileum, where vitamin B12 is absorbed. Deficiency in vitamin B12 can lead to megaloblastic anemia and neurological symptoms. Vitamin A (A) is absorbed in the jejunum, vitamin C (C) is absorbed in the distal small intestine and large intestine, and vitamin D (D) is absorbed in the jejunum and ileum but not as critically as B12.

Answer

A. Vitamin A

Answer

C. Vitamin C

Answer

D. Vitamin D

Question 4

Kerala Tourism slogan:‌​‍

Accepted Answer

God's Own Country — 'God's Own Country' — coined 1989.‌​‍

Answer

Gods Own

Answer

Kerala the Land

Answer

Paradise

Question 5

According to the WHO/UNICEF initiative 'Baby-Friendly Hospital Initiative (BFHI)', which of the following practices is NOT a part of the 'Ten Steps to Successful Breastfeeding'?

Accepted Answer

C. Provide formula milk to all newborns immediately after birth to ensure adequate nutrition before breastfeeding is established. — Step 6 of the Ten Steps explicitly advises against offering artificial teats or pacifiers to breastfeeding infants. While formula may be medically indicated in rare cases, it is not part of the standard Ten Steps. Option A aligns with Step 4 (early initiation), Step B with Step 8 (feeding on demand), and Step D with Step 10 (post-discharge support). Option C violates Step 6 and Step 7 (rooming-in).

Answer

A. Encourage immediate and uninterrupted skin-to-skin contact between mother and baby after birth.

Answer

B. Encourage unrestricted breastfeeding on demand and avoid teats or pacifiers to healthy term newborns.

Answer

D. Foster the establishment of breastfeeding support groups and refer mothers to them on discharge.

Question 6

Centripetal acceleration of uniform circular motion is:‌​‍

Accepted Answer

v²/r directed inward — a_c = v²/r = ω²r, directed toward centre. ‌​‍Required to continuously change direction of velocity.

Answer

vr

Answer

ω²r²

Answer

v/r

Question 7

Rainbow is caused by:‌​‍

Accepted Answer

Dispersion and total internal reflection of sunlight — Rainbow = sunlight dispersed (split into colours) and internally reflected inside raindrops.‌​‍

Answer

Reflection only

Answer

Refraction only

Answer

Diffraction

Question 8

The year in which Sree Narayana Guru's famous Sivagiri pilgrimage was formally started (by his directive) is:‌​‍

Accepted Answer

1928 (realised posthumously from 1933) — Narayana Guru advised the Sivagiri pilgrimage in 1928; the first pilgrimage was in 1933, after his death.‌​‍

Answer

1903

Answer

1888

Answer

1936

Question 9

Rusting requires:‌​‍

Accepted Answer

Both oxygen and water — Rusting = iron + oxygen + moisture → iron oxide (Fe₂O₃). ‌​‍Both O₂ and H₂O are needed.

Answer

Only oxygen

Answer

Only water

Answer

Neither

Question 10

The 'Loss and Damage Fund', a significant outcome of recent UN Climate Change Conferences (COPs), is primarily intended to address which specific aspect of climate change impacts?

Accepted Answer

C. Compensating vulnerable nations for the unavoidable and irreversible economic and non-economic losses caused by climate change. — The Loss and Damage Fund is specifically designed to provide financial support to developing countries that are most vulnerable to the irreversible impacts of climate change, such as extreme weather events and sea-level rise, for which adaptation is no longer sufficient. While adaptation (B) addresses current and future impacts, 'Loss and Damage' focuses on the residual and unavoidable impacts. Options A and D relate to mitigation and technology development, which are distinct pillars of climate action.

Answer

A. Funding for global research and development of new renewable energy technologies.

Answer

B. Providing financial assistance to developing countries for adapting to the unavoidable impacts of climate change.

Answer

D. Supporting reforestation and afforestation projects in tropical regions to enhance carbon sequestration.

DCOA Mixed Practice Test #773