DCOA Mixed Practice Test #809

Question 1

A mineral extensively found in Kerala, primary ore of thorium, cerium and lanthanum:‌​‍

Accepted Answer

Monazite — Kerala's black sand beaches are rich in monazite.‌​‍

Answer

Sillimanite

Answer

Ilmenite

Answer

Zircon

Question 2

The second Chief Minister of Kerala was:‌​‍

Accepted Answer

Pattom Thanu Pillai — Pattom Thanu Pillai served as Kerala's 2nd CM (22 Feb 1960 – 26 Sep 1962).‌​‍

Answer

C. Achutha Menon

Answer

E.M.S. Namboodiripad

Answer

R. Sankar

Question 3

Mammootty national awards:‌​‍

Accepted Answer

3 Best Actor — 3 National Film Awards Best Actor.‌​‍

Answer

None

Answer

1

Answer

5

Question 4

Why does a ball thrown upward come back?‌​‍

Accepted Answer

Gravity — Earth's gravitational force pulls objects toward its centre. ‌​‍The ball decelerates, stops, and falls back.

Answer

Air resistance

Answer

Magnetic force

Answer

Friction

Question 5

The Enlightenment (Age of Reason) occurred in:‌​‍

Accepted Answer

17th-18th C — Enlightenment (1680s-1780s) — Locke, Voltaire, Rousseau, Kant, Newton, Diderot. ‌​‍Reason, science, liberty, progress — inspired American and French Revolutions.

Answer

19th C

Answer

14th-15th C

Answer

20th C

Question 6

A teacher trainee is practicing the skill of 'Reinforcement' during a microteaching session. Which of the following actions would best demonstrate effective use of this skill?

Accepted Answer

C. Praising a student for a correct answer and encouraging others to participate. — The skill of reinforcement involves encouraging desired student behaviors and responses. Praising a student for a correct answer and encouraging others directly aligns with positive reinforcement. Options A, B, and D describe other distinct microteaching skills: Explanation, Stimulus Variation, and Closing respectively.

Answer

A. Explaining a complex concept using multiple examples.

Answer

B. Varying vocal tone and gestures to maintain student attention.

Answer

D. Summarizing the main points of the lesson at the end.

Question 7

Which district of Kerala has the highest population density?‌​‍

Accepted Answer

Alappuzha — Alappuzha has the highest population density in Kerala at about 1,501 per sq km.‌​‍

Answer

Thrissur

Answer

Thiruvananthapuram

Answer

Ernakulam

Question 8

Statements about Mission AXIOM-4 that are NOT correct: (i) Shubhanshu Shukla was India's first astronaut on ISS (ii) Carried KAU & IIST seeds (iii) Crew from India, USA, France, Germany (iv) Falcon 9 designed by NASA‌​‍

Accepted Answer

Only iii & iv — AXIOM-4 crew: India, USA, Poland, Hungary (not France or Germany). ‌​‍Falcon 9 is by SpaceX, not NASA.

Answer

Only i & iii

Answer

Only ii & iv

Answer

Only i & ii

Question 9

A triple bond shares how many pairs of electrons?‌​‍

Accepted Answer

3 — Single=1 pair, double=2 pairs, triple=3 pairs of shared electrons.‌​‍

Answer

1

Answer

2

Answer

4

Question 10

Largest desert:

Accepted Answer

Antarctic — Antarctic Desert is the largest (cold desert).

Answer

Sahara

Answer

Gobi

Answer

Arabian

DCOA Mixed Practice Test #809