LGS Mixed Practice Test #533

Question 1

mRNA:‌​‍

Accepted Answer

Protein synthesis template — Messenger RNA carries code.‌​‍

Answer

Enzyme

Answer

DNA storage

Answer

Membrane

Question 2

CM Tamil Nadu:‌​‍

Accepted Answer

MK Stalin — MK Stalin (DMK).‌​‍

Answer

EPS

Answer

Palaniswami

Answer

OPS

Question 3

Red blood cells in humans are produced in:‌​‍

Accepted Answer

Bone marrow — Adult RBCs are produced in red bone marrow.‌​‍

Answer

Spleen

Answer

Liver

Answer

Kidneys

Question 4

Ernakulam district's headquarters is:‌​‍

Accepted Answer

Kochi — Kochi is the headquarters of Ernakulam district. ‌​‍Kochi is also Kerala's commercial capital.

Answer

Ernakulam

Answer

Aluva

Answer

Thrippunithura

Question 5

RNA full form:

Accepted Answer

Ribonucleic Acid — Ribonucleic Acid — helps in protein synthesis.

Answer

Ribo-Nitrogen Acid

Answer

Redo Nucleic Acid

Answer

Reverse Nucleic Acid

Question 6

Which statements are correct about India's performance in Paris Olympics 2024? ‌​‍(i) India won six medals (ii) Manu Bhaker won the first medal (iii) Neeraj Chopra won silver in javelin (iv) Aman Sehrawat won bronze in wrestling

Accepted Answer

All statements are correct — India's Paris 2024 tally: 6 medals, Manu Bhaker first (10m pistol bronze), Chopra silver in javelin, Aman bronze in wrestling 57kg.‌​‍

Answer

Only (i) and (iii)

Answer

Only (iii) and (iv)

Answer

Only (i) and (ii)

Question 7

What type of energy does a solar cell convert into electricity?‌​‍

Accepted Answer

Light to electricity — Photovoltaic effect.‌​‍

Answer

Wind to electricity

Answer

Sound to electricity

Answer

Heat to electricity

Question 8

The reflection of sound heard as echo requires the reflecting surface to be at least approximately:

Accepted Answer

17 metres away — For echo, reflected sound must arrive ≥0.1 s later: distance ≥ 343×0.1/2 ≈ 17 m.

Answer

1 metre away

Answer

100 metres

Answer

1000 metres

Question 9

Which of the following is NOT a key finding of the IPCC's Sixth Assessment Report (AR6) regarding global temperature rise?

Accepted Answer

C. The Arctic is projected to become ice-free in summer at least once by 2050 — The IPCC AR6 states that the Arctic is projected to become ice-free in summer at least once by 2050 *only under certain high-emission scenarios*, not as a certainty. All other options (A, B, D) are key findings of the report.

Answer

A. Human influence has warmed the climate at a rate unprecedented in at least the last 2000 years

Answer

B. Global surface temperature has increased by approximately 1.1°C above pre-industrial levels

Answer

D. Limiting global warming to 1.5°C is still possible with immediate and deep cuts in greenhouse gas emissions

Question 10

The largest ocean is:‌​‍

Accepted Answer

Pacific — Pacific Ocean is the largest and deepest ocean.‌​‍

Answer

Atlantic

Answer

Indian

Answer

Arctic

LGS Mixed Practice Test #533