DCOA Mixed Practice Test #134

Question 1

Hepatic portal vein carries blood from:‌​‍

Accepted Answer

Digestive organs to liver — Unique system between two capillary beds. ‌​‍Nutrients processed by liver before reaching systemic circulation.

Answer

Kidney to heart

Answer

Liver to heart

Answer

Lungs to heart

Question 2

Earth's age is approximately:

Accepted Answer

~4.54 billion years — Dated via radiometric dating of meteorites and oldest rocks. Universe: ~13.8 billion years (Big Bang).

Answer

1 million

Answer

100 million

Answer

13.8 billion (universe)

Question 3

Vasco da Gama landed at which place in Kerala in 1498?‌​‍

Accepted Answer

Kozhikode (Calicut) — Vasco da Gama arrived at Kozhikode (Calicut) on 20 May 1498, becoming the first European to reach India by sea.‌​‍

Answer

Kannur

Answer

Kollam

Answer

Kochi

Question 4

Total number of teeth in an adult human is:‌​‍

Accepted Answer

32 — Adults have 32 teeth: 8 incisors, 4 canines, 8 premolars, 12 molars.‌​‍

Answer

30

Answer

36

Answer

28

Question 5

CM UP 2024-26:‌​‍

Accepted Answer

Yogi Adityanath — Yogi Adityanath.‌​‍

Answer

Akhilesh

Answer

Rajnath

Answer

Mayawati

Question 6

Mitochondria called:‌​‍

Accepted Answer

Powerhouse of cell — Powerhouse — produces ATP (energy).‌​‍

Answer

Brain of cell

Answer

Factory of cell

Answer

Kitchen of cell

Question 7

The Montagu-Chelmsford Reforms (1919) introduced:‌​‍

Accepted Answer

Diarchy — Government of India Act 1919 introduced 'Diarchy' (dual government) in provinces — some subjects transferred to Indian ministers.‌​‍

Answer

Complete self-rule

Answer

Separate electorate

Answer

Partition

Question 8

In a classroom where ICT tools like smartboards and educational software are regularly used, what is the primary shift in the teacher's role?

Accepted Answer

B. Transitioning to a facilitator and guide for learning. — With ICT providing access to vast information and interactive tools, the teacher's role evolves from a primary content deliverer to a facilitator, mentor, and guide. They help students navigate digital resources, critically evaluate information, and apply their learning effectively, fostering deeper understanding.

Answer

A. Becoming solely a content provider.

Answer

C. Minimizing interaction with students.

Answer

D. Focusing mainly on technical troubleshooting of devices.

Question 9

Critical temperature of a gas is:

Accepted Answer

Temperature above which it cannot be liquefied by pressure alone — For water 647 K; CO₂ 304 K. Below T_c, apply pressure → liquefies.

Answer

Boiling point

Answer

Melting point

Answer

Triple point

Question 10

Mao Zedong founded People's Republic of China in:‌​‍

Accepted Answer

1949 — After civil war (CPC vs KMT), Mao declared PRC 1 October 1949 at Tiananmen. ‌​‍Chiang Kai-shek retreated to Taiwan.

Answer

1966

Answer

1912

Answer

1953

DCOA Mixed Practice Test #134