LGS Mixed Practice Test #616

Question 1

A newborn baby acquires passive immunity against certain diseases from its mother. This type of immunity is primarily mediated by the transfer of which immunoglobulin through the placenta?

Accepted Answer

D. IgG — Passive acquired immunity in newborns is primarily achieved by the transfer of maternal antibodies, specifically Immunoglobulin G (IgG), across the placenta. IgG is the only class of immunoglobulin capable of crossing the placental barrier. IgA is found in breast milk, while IgM and IgE do not cross the placenta.

Answer

A. IgA

Answer

B. IgE

Answer

C. IgM

Question 2

India-UAE CEPA signed:

Accepted Answer

Feb 2022 — Comprehensive Economic Partnership Agreement.

Answer

2020

Answer

2023

Answer

2021

Question 3

Efficiency of Carnot engine operating between T1 (hot) and T2 (cold) is:‌​‍

Accepted Answer

1 - T2/T1 — Maximum possible efficiency. Approaches 1 only if T2 → 0 K (unattainable).‌​‍

Answer

T2/T1

Answer

T1/T2

Answer

1 - T1/T2

Question 4

Which of these is a noble gas?‌​‍

Accepted Answer

Helium — Noble gases: He, Ne, Ar, Kr, Xe, Rn — inert Group 18 elements.‌​‍

Answer

Hydrogen

Answer

Oxygen

Answer

Nitrogen

Question 5

The Arab Spring uprisings began in:‌​‍

Accepted Answer

2010 (Tunisia) - 2011 — Mohamed Bouazizi's self-immolation (Dec 2010) in Tunisia triggered Arab Spring. ‌​‍Regimes fell in Tunisia, Egypt, Libya, Yemen. Syria descended into civil war.

Answer

2015

Answer

2020

Answer

2008

Question 6

The Nobel Prize in Physiology or Medicine is an internationally recognized award for outstanding discoveries in the fields of life sciences and medicine. In which year was the first Nobel Prize in Physiology or Medicine awarded?

Accepted Answer

B. 1901 — The Nobel Prizes, including the one for Physiology or Medicine, were first awarded in 1901, as stipulated by the will of Alfred Nobel. The inaugural recipient in this category was Emil von Behring for his groundbreaking work on serum therapy, particularly its application against diphtheria. The other years listed are incorrect for the commencement of the Nobel Prizes.

Answer

A. 1900

Answer

C. 1902

Answer

D. 1905

Question 7

Chief Minister of Kerala 2026:‌​‍

Accepted Answer

Pinarayi Vijayan — Pinarayi Vijayan (2nd consecutive term since 2021).‌​‍

Answer

Oommen Chandy

Answer

V.S. Achuthanandan

Answer

Ramesh Chennithala

Question 8

Kerala Blasters home stadium:

Accepted Answer

Jawaharlal Nehru Stadium Kochi — JLN Stadium Kaloor.

Answer

Trivandrum

Answer

Kozhikode

Answer

Thrissur

Question 9

Hoffmann bromamide reaction:‌​‍

Accepted Answer

Amide → amine with one less carbon (Br₂ + NaOH) — RCONH₂ → RNH₂. Degradation for primary amine synthesis.‌​‍

Answer

Amide to ketone

Answer

Amide to ester

Answer

Amide to alcohol

Question 10

A group of individuals who share intimate, face-to-face association and cooperation, and exert a profound influence on an individual's attitudes, beliefs, and health behaviors, such as family and close friends, is best described as a:

Accepted Answer

B. Primary group — Primary groups, like family and close friends, are characterized by intimate, face-to-face association and cooperation, profoundly shaping an individual's personality, attitudes, and behaviors, including health practices. Secondary groups are larger, more impersonal, and goal-oriented. Reference groups are those an individual uses for self-evaluation, and formal organizations are structured for specific purposes.

Answer

A. Secondary group

Answer

C. Reference group

Answer

D. Formal organization

LGS Mixed Practice Test #616