DCOA Mixed Practice Test #496

Question 1

The Kerala Land Reforms (Amendment) Act of 1969 fundamentally reshaped agrarian relations in the state. Which of the following statements best characterizes its most significant and immediate impact?

Accepted Answer

B. It effectively abolished landlordism by vesting absolute ownership rights in cultivating tenants and 'kudikidappukars' over the land they occupied, making the purchase of ownership mandatory for tenants. — The 1969 Amendment Act was revolutionary as it made the right of cultivating tenants and 'kudikidappukars' to purchase ownership of their land absolute and mandatory. This effectively abolished landlordism and intermediaries, directly vesting ownership in the actual tillers of the soil and hutment dwellers, thus fundamentally altering the land ownership structure in Kerala. Options A, C, and D describe unrelated or incorrect primary impacts of the 1969 amendment.

Answer

A. It introduced a comprehensive scheme for the consolidation of uneconomic land holdings to improve agricultural efficiency.

Answer

C. It established a new system of state-owned collective farms, where all agricultural land was nationalized and managed by government agencies.

Answer

D. It primarily focused on regulating agricultural wages and working conditions for landless laborers, without directly altering land ownership structures.

Question 2

Which of the following interventions is most effective in breaking the chain of infection at the 'mode of transmission' link in a hospital setting?

Accepted Answer

B. Ensuring proper hand hygiene among healthcare workers. — The 'mode of transmission' refers to how the infectious agent travels from the reservoir to the susceptible host. Proper hand hygiene by healthcare workers is the single most effective measure to prevent the spread of microorganisms, especially via direct or indirect contact, thereby directly breaking the chain at the mode of transmission link. While isolation targets the reservoir and portal of exit, and antibiotics/nutrition target the susceptible host, hand hygiene directly interrupts the vehicle of transmission.

Answer

A. Administering prophylactic antibiotics to all high-risk patients.

Answer

C. Isolating patients with known multi-drug resistant organisms (MDROs).

Answer

D. Providing nutritional support to enhance patient immunity.

Question 3

Which of the following is the primary site for the synthesis of urea in the human body?

Accepted Answer

A. Liver — The liver is the primary site for urea synthesis through the urea cycle, converting toxic ammonia into urea for excretion. The kidneys filter urea but do not synthesize it. The small intestine and pancreas are not involved in urea production.

Answer

B. Kidneys

Answer

C. Small intestine

Answer

D. Pancreas

Question 4

India's population (2024 estimate):‌​‍

Accepted Answer

143+ crore — Around 143-144 crore.‌​‍

Answer

130 crore

Answer

150 crore

Answer

140 crore

Question 5

Say's Law states:‌​‍

Accepted Answer

Supply creates its own demand — Jean-Baptiste Say (classical economist): producing goods generates income which becomes demand. ‌​‍Keynes disputed in 'General Theory'.

Answer

No relation

Answer

Demand creates supply

Answer

Market fails

Question 6

Which matrix represents the identity matrix I of order 3?‌​‍

Accepted Answer

[[1,0,0],[0,1,0],[0,0,1]] — AI = IA = A for any compatible A. Inverse: A·A⁻¹ = I.‌​‍

Answer

[[0,0,0]]

Answer

[[2,0,0]]

Answer

[[1,1,1],[1,1,1],[1,1,1]]

Question 7

Tamarind contains:‌​‍

Accepted Answer

Tartaric acid — Tartaric acid.‌​‍

Answer

Citric acid

Answer

Lactic acid

Answer

Formic acid

Question 8

IST reference:

Accepted Answer

82.5°E Mirzapur — 82°30'E meridian.

Answer

75°E

Answer

90°E

Answer

70°E

Question 9

The Ezhuthachan Puraskaram is Kerala's highest literary honour, awarded for significant contributions to Malayalam literature. Which of the following statements regarding this award is incorrect?

Accepted Answer

D. M. T. Vasudevan Nair was the first recipient of this award. — The Ezhuthachan Puraskaram is indeed named after Thunchaththu Ezhuthachan and presented by the Kerala Government's Department of Cultural Affairs. The current cash prize is ₹5,00,000. However, the first recipient of this prestigious award in 1993 was Sooranad Kunjan Pillai, not M. T. Vasudevan Nair, who received it in 1995.

Answer

A. It is named after Thunchaththu Ezhuthachan, considered the father of the Malayalam language.

Answer

B. The award is instituted and presented by the Kerala State Government's Department of Cultural Affairs.

Answer

C. The cash prize associated with the award is currently ₹5,00,000.

Question 10

Kerala maritime history — Muziris:‌​‍

Accepted Answer

Ancient port near Kodungallur — Roman-era trade port.‌​‍

Answer

Medieval only

Answer

Modern port

Answer

Unknown

DCOA Mixed Practice Test #496