DCOA Mixed Practice Test #760

Question 1

Bitcoin is a:‌​‍

Accepted Answer

Cryptocurrency — Bitcoin is a decentralised digital cryptocurrency created in 2009 by Satoshi Nakamoto.‌​‍

Answer

Physical coin

Answer

Government bond

Answer

Bank deposit

Question 2

Earth's satellite:

Accepted Answer

Moon — Moon — only natural satellite.

Answer

Phobos

Answer

Titan

Answer

Europa

Question 3

Coir is made from:‌​‍

Accepted Answer

Coconut husk — Coconut fibre from husk.‌​‍

Answer

Cotton

Answer

Banana

Answer

Jute

Question 4

Who is the 'Missile Man of India'?‌​‍

Accepted Answer

A.P.J. Abdul Kalam — Dr. ‌​‍A.P.J. Abdul Kalam — for his work on India's missile and nuclear programmes. ‌​‍11th President.

Answer

Vikram Sarabhai

Answer

Homi Bhabha

Answer

Satish Dhawan

Question 5

Renewable energy sources include:‌​‍

Accepted Answer

Solar, wind, hydro, biomass, geothermal, tidal — Renewables are replenished on human timescales.‌​‍

Answer

Nuclear

Answer

Shale gas

Answer

Coal and oil

Question 6

A prodrug is an inactive compound that is metabolized in the body into an active drug. Which of the following is a classic example of a prodrug?

Accepted Answer

C. Levodopa — Levodopa is a prodrug that crosses the blood-brain barrier and is then converted to dopamine by dopa decarboxylase in the brain. Dopamine itself cannot cross the blood-brain barrier effectively. Aspirin, paracetamol, and digoxin are generally administered in their active forms.

Answer

A. Aspirin

Answer

B. Paracetamol

Answer

D. Digoxin

Question 7

Willingdon Island created by:‌​‍

Accepted Answer

Robert Bristow — Robert Bristow (1920s-30s) for Cochin Port development.‌​‍

Answer

Portuguese

Answer

Dutch

Answer

Lord Curzon

Question 8

Modernist novelist — stream of consciousness:‌​‍

Accepted Answer

James Joyce (Ulysses), Virginia Woolf — Interior monologue technique. ‌​‍Also Faulkner ('The Sound and the Fury'). Early 20th century modernism.

Answer

Dickens

Answer

Shakespeare

Answer

Hemingway

Question 9

Sociology as a discipline was founded by:‌​‍

Accepted Answer

Auguste Comte (1838, 'social physics' → sociology) — Positivism. ‌​‍Three stages: theological, metaphysical, positive. Considered sociology 'queen of sciences'.

Answer

Marx

Answer

Weber

Answer

Durkheim

Question 10

In Kerala, during monsoon season, there is often an increased incidence of diseases transmitted by mosquitoes. Which of the following is a classic example of a vector-borne disease prevalent in such conditions?

Accepted Answer

C. Dengue fever. — Dengue fever is a classic example of a vector-borne disease, transmitted by the Aedes aegypti mosquito, which thrives in conditions prevalent during the monsoon season in Kerala. Tuberculosis is airborne, while cholera and typhoid fever are typically transmitted through contaminated food and water. Mosquito control is crucial for preventing dengue outbreaks.

Answer

A. Tuberculosis.

Answer

B. Cholera.

Answer

D. Typhoid fever.

DCOA Mixed Practice Test #760