DCOA Mixed Practice Test #291

Question 1

Sree Narayana Guru's famous saying 'Oru Jathi, Oru Matham, Oru Daivam Manushyanu' means:‌​‍

Accepted Answer

One Caste, One Religion, One God for Mankind — Sree Narayana Guru proclaimed 'One Caste, One Religion, One God for Mankind' — a radical message of social equality and anti-caste activism.‌​‍

Answer

One Nation, One Tax, One Market

Answer

One Language, One Country, One Flag

Answer

One Earth, One Family, One Future

Question 2

Pyridoxal phosphate (PLP) is the active coenzyme form of which water-soluble vitamin, playing a vital role in various metabolic reactions, especially those involving amino acids like transamination and decarboxylation?

Accepted Answer

C. Vitamin B6 (Pyridoxine) — Pyridoxal phosphate (PLP) is the active coenzyme form of Vitamin B6 (Pyridoxine). It is essential for numerous enzymatic reactions, particularly in amino acid metabolism, including transamination, decarboxylation, and racemization. Thiamine (B1) forms TPP, Riboflavin (B2) forms FAD/FMN, and Cobalamin (B12) functions in specific methylation and isomerase reactions.

Answer

A. Vitamin B1 (Thiamine)

Answer

B. Vitamin B2 (Riboflavin)

Answer

D. Vitamin B12 (Cobalamin)

Question 3

Two tangents drawn from an external point to a circle are:

Accepted Answer

Equal in length — Tangents from an external point are equal.

Answer

Unequal

Answer

Perpendicular

Answer

Always bisect the circle

Question 4

The temperature at which a liquid changes into vapour at a fixed pressure is called:‌​‍

Accepted Answer

Boiling point — Boiling point of water = 100 °C at 1 atm; decreases at lower pressure.‌​‍

Answer

Dew point

Answer

Freezing point

Answer

Melting point

Question 5

Kerala topped NITI Aayog's SDG India Index because of:‌​‍

Accepted Answer

Health, education, and gender equality — Kerala's top rank came from strong performance on health, education, and gender-equality SDG indicators.‌​‍

Answer

Health and gender equality

Answer

Only health and education

Answer

Health and education

Question 6

The Battle of Colachel (1741) was fought between Travancore under Marthandavarma and which European power?

Accepted Answer

Dutch — Marthandavarma defeated the Dutch at Colachel — the first battle where a European power lost to an Indian ruler.

Answer

Portuguese

Answer

French

Answer

British

Question 7

WHO declared mpox (monkeypox) a global health emergency in:‌​‍

Accepted Answer

2022 — WHO first declared mpox a Public Health Emergency of International Concern in July 2022.‌​‍

Answer

2023

Answer

2025

Answer

2024

Question 8

Matter that has a fixed volume but no fixed shape is a:‌​‍

Accepted Answer

Liquid — Liquids have definite volume but take the shape of their container.‌​‍

Answer

Plasma

Answer

Gas

Answer

Solid

Question 9

During a period of widespread public protest against a proposed industrial project in a district, the District Collector's primary responsibility shifts to maintaining law and order while also facilitating dialogue. Which of the following functions of the District Collector is most directly invoked in this scenario?

Accepted Answer

C. Acting as the District Magistrate to ensure public peace and order. — The District Collector, in their capacity as District Magistrate, is vested with powers under the Criminal Procedure Code to maintain public peace and order, which is the most direct function invoked during widespread public protests and negotiation. While other options like presiding over planning or overseeing revenue are vital roles, they are not the primary and most direct responsibilities when dealing with immediate law and order situations and facilitating dialogue to resolve unrest.

Answer

A. Presiding over the District Planning Committee to allocate funds.

Answer

B. Overseeing the collection of land revenue and other taxes.

Answer

D. Coordinating the implementation of various central and state welfare schemes.

Question 10

Idamalayar Dam is built across which river?‌​‍

Accepted Answer

Idamalayar River — Idamalayar Dam is built across the Idamalayar River, a tributary of the Periyar, in Ernakulam district.‌​‍

Answer

Chalakudy

Answer

Muvattupuzha

Answer

Periyar

DCOA Mixed Practice Test #291