KAS Prelims Mixed Practice Test #69

Question 1

Which of the following factors does the photoelectric effect depend on?‌​‍

Accepted Answer

Frequency (threshold); intensity affects current — Below threshold frequency, no emission. Explained by Einstein (Nobel 1921).‌​‍

Answer

Intensity only

Answer

Only temperature

Answer

Colour only

Question 2

The Sixth Mass Extinction currently underway is primarily driven by:‌​‍

Accepted Answer

Human activity (habitat loss, climate change) — Current biodiversity decline is anthropogenic — land use change, pollution, overexploitation, invasive species, climate change.‌​‍

Answer

Solar flares

Answer

Volcanism

Answer

Asteroid impact

Question 3

PMLA Act:

Accepted Answer

2002 — Prevention of Money Laundering Act 2002.

Answer

2005

Answer

2010

Answer

2015

Question 4

Bhitarkanika:

Accepted Answer

Odisha (mangroves) — Odisha mangroves.

Answer

WB

Answer

TN

Answer

AP

Question 5

Which inorganic salt is commonly used as a radiopaque contrast agent in medical imaging due to its high atomic number?

Accepted Answer

A. Barium sulfate (BaSO4) — Barium sulfate (BaSO4) is used as a radiopaque contrast agent because barium (Z=56) has a high atomic number, which absorbs X-rays effectively. The other options lack significant radiopacity for imaging purposes.

Answer

B. Sodium chloride (NaCl)

Answer

C. Potassium iodide (KI)

Answer

D. Calcium gluconate (C12H22CaO14)

Question 6

A primary teacher observes that a significant number of her students struggle with reading comprehension despite various strategies. She decides to initiate an action research project. What is the most immediate and direct goal of her action research?

Accepted Answer

C. To systematically investigate and improve the reading comprehension levels within her own classroom. — Action research is primarily conducted by practitioners (teachers) to address specific problems in their own context and improve their practice. Its immediate goal is practical, context-specific improvement within the classroom, rather than broad generalization or external comparison for ranking.

Answer

A. To publish a research paper in a peer-reviewed academic journal.

Answer

B. To identify a universally effective reading comprehension strategy for all students.

Answer

D. To compare her students' performance with national averages to determine school ranking.

Question 7

The People's Plan Campaign (Janakeeyasoothranam) was launched in which year?‌​‍

Accepted Answer

1996 — The People's Plan Campaign was launched on 17 August 1996 under CM E.K. ‌​‍Nayanar, devolving 35-40% of state plan funds to local bodies.

Answer

1991

Answer

1994

Answer

2000

Question 8

'Abhijnanashakuntalam' was written by:‌​‍

Accepted Answer

Kalidasa — Kalidasa wrote Abhijnanashakuntalam (The Recognition of Shakuntala) — considered the finest Sanskrit drama.‌​‍

Answer

Bhasa

Answer

Bharavi

Answer

Magha

Question 9

Masculine of 'duck':‌​‍

Accepted Answer

drake — Drake.‌​‍

Answer

duckling

Answer

duke

Answer

doe

Question 10

A newborn infant receives antibodies from its mother through breast milk. This type of immunity is best described as:

Accepted Answer

C. Naturally acquired passive immunity. — Naturally acquired passive immunity occurs when antibodies are transferred from one individual to another without stimulating an immune response in the recipient, such as a mother passing antibodies to her child through breast milk or across the placenta. Active immunity involves the individual's own immune system producing antibodies.

Answer

A. Naturally acquired active immunity.

Answer

B. Artificially acquired active immunity.

Answer

D. Artificially acquired passive immunity.

KAS Prelims Mixed Practice Test #69