LGS Mixed Practice Test #305

Question 1

Which of the following drugs is derived from the latex of a plant and used as a purgative?

Accepted Answer

C. Aloin — Aloin is a purgative obtained from the latex of Aloe barbadensis (Aloe vera). Opium is from Papaver somniferum, colchicine from Colchicum autumnale, and quinine from Cinchona bark.

Answer

A. Opium

Answer

B. Colchicine

Answer

D. Quinine

Question 2

Which blood cells have no nucleus?‌​‍

Accepted Answer

RBC — Mature RBCs (Red Blood Cells) have no nucleus — they lose it during development to carry more haemoglobin.‌​‍

Answer

WBC

Answer

Platelets

Answer

All have nucleus

Question 3

Which is NOT a colligative property?‌​‍

Accepted Answer

Viscosity — Colligative properties depend on particle number: ΔTb, ΔTf, osmotic pressure, vapour pressure lowering.‌​‍

Answer

Freezing point depression

Answer

Boiling point elevation

Answer

Osmotic pressure

Question 4

Which of the following Himalayan ranges is primarily known for its 'Duns' and 'Duars' valleys, formed by the deposition of unconsolidated sediments brought by the rivers flowing from the northern ranges?

Accepted Answer

C. Shiwaliks — The Shiwaliks, also known as the Outer Himalayas, are the southernmost and youngest range of the Himalayas. They are primarily formed by the deposition of unconsolidated sediments brought down by the rivers from the main Himalayan ranges. These unconsolidated sediments lead to the formation of longitudinal valleys called 'Duns' in the west (e.g., Dehradun) and 'Duars' in the east. The Greater Himalayas are known for high peaks, the Lesser Himalayas for hill stations, and the Trans-Himalayas for arid, high-altitude ranges.

Answer

A. Greater Himalayas

Answer

B. Lesser Himalayas

Answer

D. Trans-Himalayas

Question 5

Idukki Dam is:‌​‍

Accepted Answer

Arch dam — Idukki — double curvature arch dam on Periyar.‌​‍

Answer

Earthen dam

Answer

Gravity dam

Answer

Rockfill

Question 6

NEET is for:‌​‍

Accepted Answer

Medical — Medical (MBBS/BDS).‌​‍

Answer

Commerce

Answer

Engineering

Answer

Law

Question 7

Kerala area:‌​‍

Accepted Answer

38,863 sq km — 22nd largest state.‌​‍

Answer

43,863 sq km

Answer

28,863 sq km

Answer

33,863 sq km

Question 8

A teacher wants to foster a genuine love for reading in her elementary students. Which of the following strategies is most likely to cultivate intrinsic motivation for reading?

Accepted Answer

C. Creating a comfortable reading corner with a diverse selection of engaging books and allowing free choice. — Creating an environment that encourages free choice and provides engaging resources directly supports intrinsic motivation by making the activity enjoyable and personally relevant. Options A, B, and D are all examples of extrinsic motivators, relying on external rewards or punishments.

Answer

A. Awarding a prize to the student who reads the most books each month.

Answer

B. Requiring students to write detailed book reports for extra credit.

Answer

D. Threatening to assign additional homework if reading goals are not met.

Question 9

The gas used in balloons to make them float is:‌​‍

Accepted Answer

Helium — Helium is lighter than air (second lightest element after hydrogen) and non-flammable, making it safe for balloons.‌​‍

Answer

Oxygen

Answer

Nitrogen

Answer

Carbon Dioxide

Question 10

Malabar exercise:‌​‍

Accepted Answer

Naval — India, US, Japan, Australia (QUAD) — QUAD naval.‌​‍

Answer

Army

Answer

Air

Answer

Cyber

LGS Mixed Practice Test #305