LGS Mixed Practice Test #287

Question 1

Kirchhoff's current law states that:‌​‍

Accepted Answer

Sum of currents entering a junction = sum leaving — KCL: conservation of charge at a node.‌​‍

Answer

Voltage drops sum to zero

Answer

Power is conserved

Answer

V = IR

Question 2

Kerala state emblem:

Accepted Answer

2 elephants with shankha — Two elephants flanking shankha and Ashoka emblem.

Answer

Lion

Answer

Peacock

Answer

Eagle

Question 3

pH scale range:‌​‍

Accepted Answer

0-14 — 0 (most acidic) to 14 (most alkaline). 7 = neutral.‌​‍

Answer

0-7

Answer

0-10

Answer

1-10

Question 4

Bile is produced by:

Accepted Answer

Liver (stored in gall bladder) — Contains bile salts (emulsify fats), bilirubin (RBC breakdown), cholesterol. Not an enzyme — helps lipase.

Answer

Gall bladder

Answer

Pancreas

Answer

Stomach

Question 5

A mixture of two miscible liquids with different boiling points is separated by:‌​‍

Accepted Answer

Distillation — Distillation uses boiling-point differences to separate miscible liquids (e.g., water and alcohol).‌​‍

Answer

Sedimentation

Answer

Sublimation

Answer

Filtration

Question 6

The modern periodic table has how many groups (vertical columns)?

Accepted Answer

18 — Long-form periodic table has 18 groups and 7 periods.

Answer

7

Answer

8

Answer

20

Question 7

Polyethylene is polymer of:‌​‍

Accepted Answer

Ethene (ethylene) — Addition polymer. LDPE (low-density), HDPE (high-density). Packaging, bags.‌​‍

Answer

Styrene

Answer

Propene

Answer

Vinyl chloride

Question 8

Improved access to education and economic opportunities for women in a community often leads to smaller family sizes and better child health outcomes. This demographic shift, characterized by changes in birth and death rates over time, is an example of:

Accepted Answer

B. Demographic transition — Demographic transition is a sociological model that describes the shift from high birth and death rates to low birth and death rates as a country or region develops, often driven by factors like education, economic development, and improved healthcare. The scenario describes precisely this shift related to women's empowerment. Social disorganization refers to a breakdown of social norms, while cultural assimilation is about adopting a dominant culture. Social mobility is movement within a social hierarchy.

Answer

A. Social disorganization

Answer

C. Cultural assimilation

Answer

D. Social mobility

Question 9

Niti Pass is located in which state?‌​‍

Accepted Answer

Uttarakhand — Uttarakhand.‌​‍

Answer

HP

Answer

AP

Answer

Sikkim

Question 10

First tribal woman President:‌​‍

Accepted Answer

Droupadi Murmu — Droupadi Murmu (2022).‌​‍

Answer

Kalpana Chawla

Answer

Sonia Gandhi

Answer

Pratibha Patil

LGS Mixed Practice Test #287