LGS Mixed Practice Test #662

Question 1

Blood volume in adult:

Accepted Answer

4-5L — About 5 litres.

Answer

2L

Answer

6-7L

Answer

10L

Question 2

G20 2025 host:‌​‍

Accepted Answer

South Africa — South Africa hosts G20 2025.‌​‍

Answer

India

Answer

Brazil

Answer

Indonesia

Question 3

Self-inductance L of coil is:‌​‍

Accepted Answer

NΦ/I — EMF = -L dI/dt. Unit: Henry. Energy stored: ½LI².‌​‍

Answer

I/V

Answer

E/t

Answer

Φ

Question 4

Determinant of 2x2 matrix [[a,b],[c,d]]:‌​‍

Accepted Answer

ad - bc — If zero, matrix singular (no inverse). ‌​‍Used in Cramer's rule for linear equations.

Answer

a+b+c+d

Answer

ab-cd

Answer

ad

Question 5

Which of the following types of anemia is characterized by a deficiency in intrinsic factor, leading to impaired absorption of Vitamin B12?

Accepted Answer

C. Pernicious anemia — Pernicious anemia is an autoimmune condition where the stomach lining fails to produce intrinsic factor, a protein essential for the absorption of Vitamin B12 in the small intestine. This leads to Vitamin B12 deficiency, which results in megaloblastic anemia (large, immature red blood cells). Iron deficiency, aplastic, and thalassemia have different causes.

Answer

A. Iron deficiency anemia

Answer

B. Aplastic anemia

Answer

D. Thalassemia

Question 6

What is the theme of 2016 Zero Discrimination Day?‌​‍

Accepted Answer

Stand out — UNAIDS 2016 Zero Discrimination Day theme: 'Stand Out'.‌​‍

Answer

Live up

Answer

Speak Loud for Justice

Answer

Stand up

Question 7

Largest river by volume:‌​‍

Accepted Answer

Amazon — Amazon — largest by discharge.‌​‍

Answer

Yangtze

Answer

Nile

Answer

Congo

Question 8

A language teacher is meticulously planning lessons that involve extensive repetition, memorization of dialogues, and immediate correction of errors to ensure accurate pronunciation and grammatical structures. This approach aligns most closely with which language teaching methodology?

Accepted Answer

C. Audio-lingual Method, which is based on behaviorist theories of habit formation. — The Audio-lingual Method, heavily influenced by behaviorism, emphasizes habit formation through repetitive drills, dialogue memorization, and immediate error correction to achieve accuracy in pronunciation and grammar. In contrast, Communicative Language Teaching prioritizes meaningful interaction and fluency, often delaying explicit error correction.

Answer

A. Communicative Language Teaching, where fluency is prioritized over accuracy in initial stages.

Answer

B. Task-Based Language Teaching, where learners complete meaningful tasks using target language.

Answer

D. Total Physical Response, where commands are given and students respond physically.

Question 9

The Rowlatt Act was passed in:‌​‍

Accepted Answer

1919 — The Rowlatt Act (1919) allowed detention without trial. ‌​‍Gandhi called it a 'Black Act'.

Answer

1917

Answer

1920

Answer

1922

Question 10

Hard water does not form lather because it contains:‌​‍

Accepted Answer

Calcium and Magnesium salts — Hard water contains dissolved calcium and magnesium salts that react with soap, preventing lather.‌​‍

Answer

Sodium

Answer

Chlorine

Answer

Iron

LGS Mixed Practice Test #662