DCOA Mixed Practice Test #208

Question 1

Imperialism peaked during:‌​‍

Accepted Answer

Late 19th C - early 20th C (Scramble for Africa 1881-1914) — Berlin Conference (1884-85) divided Africa among European powers. ‌​‍By 1914, Europeans controlled ~85% of world land area.

Answer

Mid-20th C

Answer

17th C

Answer

Renaissance

Question 2

Wheatstone bridge balance condition:‌​‍

Accepted Answer

Both same — At balance, no current through galvanometer. ‌​‍Used to measure unknown resistance (metre bridge application).

Answer

P/Q = R/S

Answer

P × S = Q × R

Answer

PQR = S

Question 3

Who wrote the book 'India after Gandhi'?‌​‍

Accepted Answer

Ramachandra Guha — Ramachandra Guha's celebrated 2007 history of post-independence India.‌​‍

Answer

Sumit Sarkar

Answer

Ranajit Guha

Answer

Bipan Chandra

Question 4

Adrenaline from:

Accepted Answer

Adrenal gland — Fight or flight hormone.

Answer

Thyroid

Answer

Pancreas

Answer

Pituitary

Question 5

Who was appointed CEO of ONDC (Open Network for Digital Commerce) in April 2026?‌​‍

Accepted Answer

Vibhor Jain — Vibhor Jain was appointed CEO of ONDC on 10 April 2026.‌​‍

Answer

Sunil Bajpai

Answer

Narendra Bhooshan

Answer

Amitabh Kant

Question 6

The Jal Jeevan Mission (JJM) aims to provide tap water connections to every rural household. Which of the following best describes the target year for achieving this goal across the country?

Accepted Answer

C. 2024 — The Jal Jeevan Mission (JJM) was launched with the explicit aim to provide safe and adequate drinking water through individual household tap connections to all rural households in India by 2024. This target year is a core component of the mission's implementation strategy. Other options provide incorrect target years or scope.

Answer

A. 2025

Answer

B. 2023

Answer

D. 2022

Question 7

The Earth revolves around the Sun completing one revolution in approximately:‌​‍

Accepted Answer

365 days 6 hours — Earth's revolution takes ~365¼ days; the extra quarter day gives us a leap year every four years.‌​‍

Answer

365 days

Answer

366 days

Answer

365 days 5 hours

Question 8

The Ezhava Memorial submitted on 3 September 1896 was led by:‌​‍

Accepted Answer

Dr. P. Palpu — Dr P. ‌​‍Palpu led the Ezhava Memorial demanding representation of the Ezhava community in Travancore service.

Answer

Kumaran Asan

Answer

G.P. Pillai

Answer

Sree Narayana Guru

Question 9

An object floats in a fluid when its density is:‌​‍

Accepted Answer

Less than or equal to fluid — If ρ_body ≤ ρ_fluid, body floats; else it sinks.‌​‍

Answer

Zero

Answer

Equal to air

Answer

Greater than fluid

Question 10

Modi-Trump meeting 2024:‌​‍

Accepted Answer

After Trump election — Met after Trump's return.‌​‍

Answer

Cancelled

Answer

During Biden

Answer

Before 2024

DCOA Mixed Practice Test #208