LGS Mixed Practice Test #35

Question 1

Second law (Kelvin-Planck) states:

Accepted Answer

No engine can convert all heat into work in a cycle — Equivalent to Clausius statement. Entropy of isolated system never decreases.

Answer

Energy is conserved

Answer

ΔU = Q - W

Answer

Entropy decreases

Question 2

Kerala's first hydroelectric project was at:

Accepted Answer

Pallivasal — Pallivasal Hydroelectric Project in Idukki district was Kerala's first major hydroelectric project, commissioned in 1940.

Answer

Idukki

Answer

Sabarigiri

Answer

Malampuzha

Question 3

Biofortification:‌​‍

Accepted Answer

Breeding crops for higher nutritional value — Biofortified wheat (Atlas 66, high protein), rice (high Fe), maize (lysine-rich Protina). ‌​‍Golden rice (Vit A).

Answer

Spraying

Answer

Fermentation

Answer

Irradiation

Question 4

Which element is common to all organic compounds?‌​‍

Accepted Answer

Carbon — Carbon is the essential element in all organic compounds. ‌​‍The branch of chemistry dealing with carbon compounds is Organic Chemistry.

Answer

Nitrogen

Answer

Oxygen

Answer

Hydrogen

Question 5

Which part of the respiratory system is primarily responsible for the actual exchange of gases (oxygen and carbon dioxide) between the air and the blood?

Accepted Answer

C. Alveoli — The alveoli are tiny air sacs within the lungs where the vital process of gas exchange occurs. Oxygen diffuses from the alveoli into the bloodstream, while carbon dioxide moves from the blood into the alveoli to be exhaled. The other options are part of the conducting airways, facilitating air passage but not gas exchange.

Answer

A. Trachea

Answer

B. Bronchi

Answer

D. Larynx

Question 6

Galvanisation is the process of coating iron with:‌​‍

Accepted Answer

Zinc — Galvanised iron has a protective zinc coating against corrosion.‌​‍

Answer

Tin

Answer

Copper

Answer

Lead

Question 7

Unniarcha:‌​‍

Accepted Answer

Warrior heroine — Legendary warrior of North Kerala.‌​‍

Answer

Queen

Answer

Poet

Answer

None

Question 8

Which of the following was a key provision of the Kerala Agrarian Relations Act, 1963, aimed at land reforms in Kerala?

Accepted Answer

A. Abolition of the Jenmi system and redistribution of land to tenants — The Kerala Agrarian Relations Act, 1963, primarily aimed to abolish the Jenmi (landlord) system, which was a feudal landholding structure, and redistribute land to actual tillers. Option A directly reflects this objective. Option B is incorrect as the act focused on land redistribution, not commercial farming. Option C is wrong because nationalization was not part of the act. Option D misrepresents the tax structure, which was not the primary goal of this legislation.

Answer

B. Introduction of commercial farming practices in paddy fields

Answer

C. Nationalization of all agricultural lands above 10 acres

Answer

D. Imposition of heavy taxes on land ownership to fund industrialization

Question 9

The G20, as a premier forum for international economic cooperation, often grapples with complex global challenges. In recent years, which factor has most significantly complicated the G20's ability to achieve consensus and deliver impactful outcomes on major international issues?

Accepted Answer

C. Deepening geopolitical divisions and rivalries among major powers, particularly concerning conflicts and security issues. — While issues like trade protectionism and climate targets are present, the most significant impediment to G20 consensus in recent years has been the escalating geopolitical tensions and rivalries among its major power members. These divisions, often stemming from conflicts and security concerns, spill over into economic and other discussions, making it challenging to find common ground on a wide range of global issues. There have been no significant withdrawals of key member states from the G20.

Answer

A. The increasing dominance of trade protectionist policies among developing member states.

Answer

B. Persistent disagreements over climate change mitigation targets between developed and developing nations.

Answer

D. The withdrawal of several key member states, reducing the group's overall economic representation.

Question 10

UN founded:‌​‍

Accepted Answer

1945 — 24 October 1945.‌​‍

Answer

1942

Answer

1948

Answer

1950

LGS Mixed Practice Test #35