DCOA Mixed Practice Test #189

Question 1

Semiconductor diode as rectifier:‌​‍

Accepted Answer

Converts AC to DC — Half-wave uses 1 diode; full-wave bridge uses 4 diodes. ‌​‍Capacitor smooths output.

Answer

Amplifies

Answer

Generates AC

Answer

Only blocks

Question 2

The Sree Narayana Dharma Paripalana (SNDP) Yogam was founded in 1903 by:‌​‍

Accepted Answer

Dr. Padmanabhan Palpu and Kumaran Asan with Narayana Guru as patron — Dr. ‌​‍Palpu initiated the SNDP Yogam in 1903 with Kumaran Asan as first secretary and Narayana Guru as patron.

Answer

Ayyankali

Answer

Chattambi Swamikal

Answer

Sree Narayana Guru personally alone

Question 3

Graphite is a ______ of carbon.‌​‍

Accepted Answer

Allotrope — Graphite, diamond, fullerene are allotropes of carbon.‌​‍

Answer

Isobar

Answer

Isotope

Answer

Alloy

Question 4

An individual, despite having minimal formal education, successfully manages a thriving small business, adeptly handles unexpected logistical challenges, and effectively negotiates with suppliers and customers in a complex market environment. According to Robert Sternberg's Triarchic Theory of Intelligence, which type of intelligence is this individual predominantly demonstrating?

Accepted Answer

C. Practical Intelligence — Sternberg's Practical Intelligence (also known as contextual intelligence) involves the ability to adapt to, shape, or select real-world environments. The individual's success in managing a business, handling challenges, and negotiating effectively in a real-world context, despite limited formal education, is a clear manifestation of practical intelligence. Analytical intelligence involves problem-solving and analysis, while creative intelligence involves generating new ideas.

Answer

A. Analytical Intelligence

Answer

B. Creative Intelligence

Answer

D. Linguistic Intelligence

Question 5

Who was the first Keralite to serve twice as Finance Minister in the Central Cabinet?

Accepted Answer

Dr. John Mathai — Dr. John Mathai held the Finance portfolio 1949–1950 in the Nehru cabinet.

Answer

A.K. Antony

Answer

K. Karunakaran

Answer

Krishna Kumar

Question 6

India's net zero target year:

Accepted Answer

2070 — PM Modi announced net zero emissions by 2070 at COP26.

Answer

2050

Answer

2060

Answer

2080

Question 7

Kerala's MSP (Minimum Support Price) for paddy is set by:‌​‍

Accepted Answer

Kerala Government (in addition to GoI's MSP) — State governments can add state MSP on top of Centre's. ‌​‍Kerala's paddy procurement has strong state support to protect farmers.

Answer

Market

Answer

FCI

Answer

Only Centre

Question 8

Lok Sabha 2024 election winner:‌​‍

Accepted Answer

NDA — NDA formed government; BJP 240, NDA 293.‌​‍

Answer

BJP alone

Answer

Congress alone

Answer

INDIA alliance

Question 9

How many Sustainable Development Goals (SDGs) are there?‌​‍

Accepted Answer

17 — The 2030 Agenda has 17 SDGs covering poverty, hunger, health, education, equality, climate, etc.‌​‍

Answer

8

Answer

21

Answer

15

Question 10

Which of the following was a direct consequence of the Government of India Act, 1935 in the context of British rule in India?

Accepted Answer

A. Introduction of provincial autonomy with limited self-governance in provinces — The Government of India Act, 1935 introduced provincial autonomy, allowing limited self-governance in provinces under British rule. Option B is incorrect as Dominion Status was not granted immediately; Option C is wrong because the ICS was not abolished; Option D is incorrect as the federal court was established under the same act but did not have such broad powers.

Answer

B. Granting of Dominion Status to India with immediate effect

Answer

C. Abolition of the Indian Civil Service (ICS) and its replacement with local administrative bodies

Answer

D. Establishment of a federal court with powers to review constitutional matters

DCOA Mixed Practice Test #189