KAS Prelims Mixed Practice Test #305

Question 1

The pH of pure water is:‌​‍

Accepted Answer

7 — Pure water has pH 7 (neutral).‌​‍

Answer

0

Answer

5

Answer

14

Question 2

Synapse:‌​‍

Accepted Answer

Gap between neurons — Junction where neurons communicate.‌​‍

Answer

Nerve cell

Answer

Brain part

Answer

Muscle

Question 3

Which statement about Jupiter-3 (the world's largest private satellite) is NOT true?‌​‍

Accepted Answer

Launched by Elon Musk's SpaceX — Jupiter-3 was a Hughes Network/EchoStar satellite launched by SpaceX, but it is owned by Hughes — not by SpaceX; all other statements are true.‌​‍

Answer

Jupiter-3 is the world's largest private satellite

Answer

Launched from Florida, USA

Answer

Launched in August 2023

Question 4

Lenz's law is a manifestation of conservation of:‌​‍

Accepted Answer

Energy — Induced current opposes change in flux producing it. ‌​‍Otherwise energy would be created from nothing.

Answer

Momentum

Answer

Charge

Answer

Mass

Question 5

Schedule 6:‌​‍

Accepted Answer

NE tribal areas — Assam, Meghalaya, Tripura, Mizoram tribal councils.‌​‍

Answer

Anti-defection

Answer

Languages

Answer

Scheduled Areas

Question 6

Trypsin is secreted by:‌​‍

Accepted Answer

Pancreas (as trypsinogen, activated by enterokinase) — Protease. ‌​‍Cleaves peptides on C-terminal of K and R. Bile (from liver) emulsifies fats — not an enzyme.

Answer

Salivary glands

Answer

Liver

Answer

Stomach

Question 7

Supreme Court has how many judges (including CJI)?‌​‍

Accepted Answer

34 — 34 judges (CJI + 33). Increased from 31 by Parliament in 2019.‌​‍

Answer

26

Answer

31

Answer

40

Question 8

Arthashastra was written by:‌​‍

Accepted Answer

Kautilya — Kautilya (Chanakya) wrote Arthashastra — a treatise on statecraft and economics.‌​‍

Answer

Megasthenes

Answer

Aryabhata

Answer

Kalidasa

Question 9

Returns to Scale (long-run, all inputs variable) can be:‌​‍

Accepted Answer

Increasing, Constant, Decreasing — IRS = output increases more than proportionally. ‌​‍CRS = proportional. DRS = less than proportional. ‌​‍Function of scale, not individual factor.

Answer

Only decreasing

Answer

Always increasing

Answer

Always constant

Question 10

The Atlantic Charter (1941) influenced India because it mentioned:‌​‍

Accepted Answer

Self-determination of peoples — The Atlantic Charter's principle of 'self-determination' was used by Indian nationalists to demand freedom from British rule.‌​‍

Answer

Free trade

Answer

Military alliance

Answer

Nuclear policy

KAS Prelims Mixed Practice Test #305