KAS Prelims Mixed Practice Test #1050

Question 1

The working principle of Optical Fibre Cable (OFC) is:‌​‍

Accepted Answer

Total internal reflection — Light signals travel through fibre via total internal reflection.‌​‍

Answer

Scattering

Answer

Interference

Answer

Dispersion

Question 2

pH of pure water:

Accepted Answer

7 — pH 7 = neutral. Below 7 = acidic, above 7 = basic.

Answer

5

Answer

6

Answer

8

Question 3

Strong snow storms in the Tundra are called:‌​‍

Accepted Answer

Blizzards — Blizzards are violent snowstorms with strong winds in polar/sub-polar regions.‌​‍

Answer

Monsoons

Answer

Siroccos

Answer

Chinook

Question 4

Down's syndrome is due to:

Accepted Answer

Trisomy 21 — Extra chromosome 21. Features: intellectual disability, characteristic facial features. Risk rises with maternal age.

Answer

XXY

Answer

Turner (XO)

Answer

X-linked

Question 5

India's per capita income 2024 (approx):‌​‍

Accepted Answer

₹2 lakh — About ₹1.97-2 lakh at current prices.‌​‍

Answer

₹1 lakh

Answer

₹2.5 lakh

Answer

₹1.5 lakh

Question 6

The Mongol Empire was the largest contiguous land empire, founded by:‌​‍

Accepted Answer

Genghis Khan (early 13th C) — Genghis Khan (Temujin) founded Mongol Empire 1206. ‌​‍At peak covered 24 million km² from Korea to Hungary. Grandson Kublai Khan founded Yuan dynasty in China.

Answer

Kublai Khan

Answer

Timur

Answer

Babur

Question 7

The largest artery in the human body is:‌​‍

Accepted Answer

Aorta — The aorta carries oxygenated blood from the left ventricle to the body.‌​‍

Answer

Pulmonary artery

Answer

Carotid artery

Answer

Vena cava

Question 8

Which of the following is a key component of an effective drug distribution system in a hospital?

Accepted Answer

B. Unit dose packaging — Unit dose packaging is a key component of an effective drug distribution system in a hospital as it helps to reduce medication errors by ensuring that each dose is individually packaged and labeled. Automated dispensing cabinets and barcode scanning are also important components, but unit dose packaging is a fundamental aspect of safe medication distribution.

Answer

A. Automated dispensing cabinets

Answer

C. Barcode scanning

Answer

D. All of the above are important, but B is the most critical

Question 9

The overall equation for photosynthesis uses carbon dioxide and water to produce:‌​‍

Accepted Answer

Oxygen and glucose — 6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂ (in presence of sunlight and chlorophyll).‌​‍

Answer

Hydrogen and methane

Answer

Nitrogen and proteins

Answer

Carbon monoxide

Question 10

Gravity discovered by:‌​‍

Accepted Answer

Newton — Sir Isaac Newton — Law of Universal Gravitation.‌​‍

Answer

Galileo

Answer

Kepler

Answer

Einstein

KAS Prelims Mixed Practice Test #1050