DCOA Mixed Practice Test #560

Question 1

Kudumbashree year:‌​‍

Accepted Answer

1998 — 17 May 1998.‌​‍

Answer

1996

Answer

2000

Answer

2002

Question 2

A patient's urine analysis reveals a specific gravity of 1.035. This finding most likely suggests:

Accepted Answer

D. Dehydration or concentrated urine — Normal urine specific gravity ranges from 1.003 to 1.030. A specific gravity of 1.035 is higher than normal, indicating that the urine is highly concentrated. This is typically seen in states of dehydration, where the kidneys conserve water, or in conditions like excessive sweating or fever. Overhydration or diabetes insipidus would lead to dilute urine (low specific gravity).

Answer

A. Overhydration

Answer

B. Diabetes insipidus

Answer

C. Normal hydration status

Question 3

Which district headquarters in Kerala was shifted from Quilon to a new location?‌​‍

Accepted Answer

Pathanamthitta — Pathanamthitta was carved from Quilon (Kollam), Idukki, and Alappuzha in 1982 with its own HQ.‌​‍

Answer

Alappuzha

Answer

Kollam

Answer

Kottayam

Question 4

Methotrexate, an antimetabolite used in chemotherapy, exerts its cytotoxic effect by inhibiting which key enzyme involved in folate metabolism and DNA synthesis?

Accepted Answer

B. Dihydrofolate reductase (DHFR) — Methotrexate is a folic acid analog that competitively inhibits dihydrofolate reductase (DHFR). DHFR is essential for converting dihydrofolate to tetrahydrofolate, a cofactor required for the synthesis of purine nucleotides and thymidylate, which are precursors for DNA synthesis. By inhibiting DHFR, methotrexate blocks DNA replication and cell division.

Answer

A. Thymidylate synthase

Answer

C. DNA gyrase

Answer

D. Ribonucleotide reductase

Question 5

During the process of external respiration, where does the primary exchange of oxygen and carbon dioxide occur in the human body?

Accepted Answer

C. Alveoli — The alveoli are tiny air sacs within the lungs, highly vascularized, and serve as the primary site for gas exchange between the inhaled air and the blood. Oxygen diffuses from the alveoli into the blood, while carbon dioxide diffuses from the blood into the alveoli to be exhaled. The trachea, bronchi, and larynx are part of the conducting airways that transport air but are not involved in gas exchange.

Answer

A. Trachea

Answer

B. Bronchi

Answer

D. Larynx

Question 6

Ultrasound used in:‌​‍

Accepted Answer

Sonography (medical scans) — Above 20,000 Hz. Also by bats/dolphins.‌​‍

Answer

Television

Answer

Radio

Answer

Phone calls

Question 7

Kerala, despite its high human development indicators, continues to grapple with income disparities and pockets of chronic poverty, especially among vulnerable groups. If the state government implements a program providing a basic income to households below a specific poverty line, which of the following outcomes would be the most direct and significant impact on the state's efforts to address these issues?

Accepted Answer

B. It would significantly reduce income inequality by establishing a floor for household income, directly alleviating absolute poverty and enhancing access to basic services. — Providing a basic income to households below the poverty line directly establishes an income floor, thereby reducing income inequality and alleviating absolute poverty by ensuring a minimum standard of living and improving access to essential services like food, healthcare, and education. While fiscal sustainability (C) is a significant challenge and work disincentives (D) are debated, the most direct and significant impact of such a program on poverty and inequality is the guaranteed income support and its immediate effect on living standards. Increased consumer spending (A) might occur but i

Answer

A. It would primarily lead to a significant increase in consumer spending on non-essential goods, potentially fueling inflation.

Answer

C. It would likely increase the state's reliance on central government grants due to the unsustainable financial burden of the scheme.

Answer

D. It would primarily encourage a shift from formal employment to informal sector work, due to reduced incentive for stable jobs.

Question 8

NEP 2020 emphasizes a shift in assessment practices from primarily summative and rote-learning based to one that is more:

Accepted Answer

B. Formative, competency-based, and designed to promote learning and development. — NEP 2020 calls for a transformation in assessment, moving towards formative, competency-based evaluation that assesses higher-order skills and promotes learning, rather than just rote memorization. Option A contradicts the policy's move away from high-stakes, frequent standardized tests. Option C suggests an exclusive reliance which is too extreme. Option D highlights a traditional use of assessment that NEP 2020 seeks to de-emphasize.

Answer

A. Focused on standardized national-level examinations at every grade.

Answer

C. Exclusively reliant on peer-assessment and self-assessment for all academic levels.

Answer

D. Primarily used for ranking students and schools at district and state levels.

Question 9

The three pillars of the mass media discussed in the Class 8 SS text are:‌​‍

Accepted Answer

Print, electronic, new media (internet) — Mass media is classified into print, electronic (radio/TV) and new/digital media.‌​‍

Answer

TV, cinema, theatre

Answer

Print, radio, television

Answer

Newspaper, book, magazine

Question 10

A teacher wants to create an interactive learning module using ICT. Which tool would be most effective for assessing students' real-time understanding in a digital format?

Accepted Answer

B. Learning Management System (LMS) with quiz features — While all options have educational value, an LMS with quiz features allows for real-time assessment of students' understanding through quizzes and feedback mechanisms, which is the most direct method for evaluating comprehension digitally.

Answer

A. Digital whiteboard for live demonstrations

Answer

C. Video conferencing tools for synchronous discussions

Answer

D. E-books for self-paced reading

DCOA Mixed Practice Test #560