LGS Mixed Practice Test #622

Question 1

1 KB =:‌​‍

Accepted Answer

1024 bytes — 1024 bytes (2¹⁰).‌​‍

Answer

1000 bytes

Answer

512 bytes

Answer

2048 bytes

Question 2

A blue litmus paper turns red in:

Accepted Answer

Acidic solution — Acids turn blue litmus red; bases turn red litmus blue.

Answer

Basic solution

Answer

Neutral water

Answer

Salt solution

Question 3

Vizhinjam port inauguration (commercial):

Accepted Answer

2023-24 — Container operations began 2023-24.

Answer

2020

Answer

2015

Answer

2025

Question 4

Willingdon Island in Kochi is:

Accepted Answer

An artificial island — Willingdon Island is the largest artificial island in India, created during the construction of Kochi port in 1933.

Answer

A natural island

Answer

A coral island

Answer

A volcanic island

Question 5

The amount of sun's energy reaching Earth's surface is called:

Accepted Answer

Insolation — Insolation = Incoming Solar Radiation striking Earth's surface.

Answer

Radiation

Answer

Convection

Answer

Advection

Question 6

p-n junction diode conducts in:

Accepted Answer

Forward bias only — Depletion region shrinks in forward bias. Used as rectifier. Reverse breakdown (Zener) at high reverse voltage.

Answer

Both directions equally

Answer

Reverse bias only

Answer

Never

Question 7

Menopause refers to:

Accepted Answer

Permanent cessation of menstruation (typically age 45-55) — Menopause marks end of reproductive phase in women; ovaries stop releasing eggs.

Answer

Start of menstruation

Answer

Infection

Answer

Fertilisation

Question 8

The Wagon Tragedy happened during:‌​‍

Accepted Answer

Malabar Rebellion — During Malabar Rebellion (1921), prisoners suffocated in a closed goods wagon (Black Hole of Podannur).‌​‍

Answer

Vaikom Satyagraha

Answer

Punnapra-Vayalar

Answer

Quit India

Question 9

Which eminent physician and former Chief Minister of West Bengal, whose birthday is observed as National Doctors' Day in India, was posthumously awarded the Bharat Ratna, India's highest civilian honor?

Accepted Answer

B. Dr. B. C. Roy — Dr. B. C. Roy was a distinguished physician and former Chief Minister of West Bengal, whose birthday (July 1st) is celebrated as National Doctors' Day in India. He was posthumously awarded the Bharat Ratna in 1961 for his immense contributions to medicine and public life. The other options are also Bharat Ratna recipients but recognized for their work in physics, aerospace engineering, and agriculture, respectively.

Answer

A. Dr. C. V. Raman

Answer

C. Dr. A. P. J. Abdul Kalam

Answer

D. Dr. M. S. Swaminathan

Question 10

Human Rights Day is:‌​‍

Accepted Answer

10 December — 10 December commemorates UDHR adoption (1948). ‌​‍Human Rights Day celebrated globally.

Answer

26 January

Answer

24 October

Answer

8 March

LGS Mixed Practice Test #622