LGS Mixed Practice Test #409

Question 1

Kerala FACT (fertilizer):

Accepted Answer

Travancore headquartered — Fertilisers and Chemicals Travancore, Udyogamandal.

Answer

Bihar

Answer

UP

Answer

Gujarat

Question 2

In the human respiratory system, the primary site for the exchange of oxygen and carbon dioxide between the air and blood is the:

Accepted Answer

C. Alveoli — The alveoli are tiny air sacs in the lungs with very thin walls, surrounded by capillaries. This structure provides a large surface area and short diffusion distance, making them the most efficient site for the rapid exchange of oxygen into the blood and carbon dioxide out of the blood.

Answer

A. Trachea

Answer

B. Bronchioles

Answer

D. Larynx

Question 3

Cochin International Airport achievement:‌​‍

Accepted Answer

First solar-powered in world — Fully solar-powered since 2015.‌​‍

Answer

First floating

Answer

First underwater

Answer

Largest in India

Question 4

IRNSS-1G Regional Navigation Satellite was launched from Satish Dhawan Space Centre by:‌​‍

Accepted Answer

PSLV-C33 — PSLV-C33 launched IRNSS-1G on 28 April 2016, completing the NavIC constellation.‌​‍

Answer

PSLV-C31

Answer

PSLV-C34

Answer

PSLV-C32

Question 5

Pinaka is:‌​‍

Accepted Answer

Multi-barrel rocket launcher — DRDO Pinaka MBRL.‌​‍

Answer

Tank

Answer

Missile

Answer

Aircraft

Question 6

Ayyankali's 'Villuvandi Samaram' (Bullock Cart Strike) in 1893 was a landmark protest in Kerala's social reform movement. Which of the following best describes its immediate and most significant impact?

Accepted Answer

B. It successfully challenged the traditional restrictions on lower castes using public roads and thoroughfares. — The 'Villuvandi Samaram' was Ayyankali's direct challenge to the severe restrictions placed on lower castes, preventing them from using public roads. By riding a bullock cart through public spaces reserved for upper castes, he asserted their right to mobility and access, which was a crucial step towards dismantling caste-based discrimination in public life. While Ayyankali championed other causes like education and labor rights, the Villuvandi Samaram specifically targeted public road access.

Answer

A. It led to the establishment of the Sadhu Jana Paripalana Sangham, uniting marginalized communities politically.

Answer

C. It compelled the Travancore government to enact legislation granting universal access to education for all castes.

Answer

D. It triggered a large-scale land reform movement, redistributing agricultural lands to the landless poor.

Question 7

Which of the following bacterial structures is primarily responsible for adherence to host cells and surfaces, playing a crucial role in initiating infection?

Accepted Answer

C. Pili (Fimbriae). — Pili, also known as fimbriae, are short, hair-like appendages on the surface of many bacteria that enable them to adhere to host cells and surfaces, which is a critical first step in establishing an infection. The cell wall (A) provides structural integrity, flagella (B) are primarily involved in motility, and the capsule (D) helps resist phagocytosis but is less directly involved in initial adherence compared to pili.

Answer

A. Cell wall.

Answer

B. Flagella.

Answer

D. Capsule.

Question 8

Which of the following best explains the genetic basis of sickle cell anemia?

Accepted Answer

B. A missense mutation in the HBB gene causing a substitution of valine for glutamic acid at the 6th position of the beta-globin chain. — Sickle cell anemia is caused by a point mutation (missense mutation) in the HBB gene, where valine replaces glutamic acid at the 6th position of the beta-globin chain. This alters the hemoglobin structure, leading to sickling of red blood cells under low oxygen conditions. Options A, C, and D describe different types of mutations that do not correspond to the actual cause of sickle cell anemia.

Answer

A. A deletion mutation in the HBB gene leading to the absence of beta-globin chains.

Answer

C. A frameshift mutation in the HBB gene resulting in a completely non-functional beta-globin protein.

Answer

D. A nonsense mutation in the HBB gene truncating the beta-globin protein prematurely.

Question 9

When is World Refugees Day observed?‌​‍

Accepted Answer

20 June — World Refugee Day 20 June (UN). Coincides with African Refugee Day. Highlights plight of 100+ million displaced people globally.

Answer

24 October

Answer

8 March

Answer

10 December

Question 10

In a primary school, a child with autism spectrum disorder (ASD) faces challenges in peer interaction and sensory overload. Which inclusive practice aligns with both RTE 2009 and RPwD Act 2016?

Accepted Answer

B. Designing a sensory-friendly classroom environment with flexible seating and reduced noise — Both RTE 2009 (Section 24) and RPwD Act 2016 emphasize creating supportive classroom environments. Segregation (A) and exclusion (C, D) violate inclusion principles. Sensory-friendly adaptations (B) are evidence-based and legally mandated for children with ASD.

Answer

A. Segregating the child during recess to avoid peer conflicts

Answer

C. Requiring the child to participate in all group activities without accommodations

Answer

D. Providing one-on-one academic tuition only, excluding social skill development

LGS Mixed Practice Test #409