VFA Mixed Practice Test #542

Question 1

What is the determinant of a 2x2 matrix [[a,b],[c,d]]?‌​‍

Accepted Answer

ad - bc — If zero, matrix singular (no inverse). ‌​‍Used in Cramer's rule for linear equations.

Answer

ab-cd

Answer

a+b+c+d

Answer

ad

Question 2

The term 'hat-trick' originated from:‌​‍

Accepted Answer

Cricket — Hat-trick originated in cricket — a bowler taking 3 wickets in 3 consecutive balls. ‌​‍Now used across sports.

Answer

Football

Answer

Hockey

Answer

Tennis

Question 3

In Kerala, the Kuttanad region is known for its unique agricultural practice. Which of the following best describes this practice?

Accepted Answer

B. Paddy cultivation below sea level using a system of bunds and canals — The Kuttanad region is famous for its below-sea-level farming, where paddy is cultivated using a complex system of bunds (regulators) and canals to manage water levels. Terrace farming and shifting cultivation are not practiced here, and horticulture is not the primary focus.

Answer

A. Terrace farming in hilly areas

Answer

C. Shifting cultivation in forest areas

Answer

D. Horticulture-based cropping in high-altitude regions

Question 4

The Kerala State Government confers the 'Guru Shreshta Award' annually to outstanding teachers. Which of the following would be the most distinguishing quality of a recipient of this award?

Accepted Answer

B. Their innovative pedagogical approaches that foster critical thinking and overall personality development among students. — The Guru Shreshta Award recognizes excellence in teaching. While other options are valuable contributions or indicators of a good teacher, the most distinguishing quality for this specific award is the implementation of innovative teaching methods that go beyond rote learning to cultivate critical thinking and holistic development in students. It emphasizes the quality and impact of teaching over mere longevity or administrative contributions.

Answer

A. Their consistent efforts in improving the school's physical infrastructure and facilities.

Answer

C. Their long tenure of service (e.g., 25+ years) without any disciplinary actions.

Answer

D. Their success in securing 100% pass rates in public examinations for multiple consecutive years.

Question 5

A large industrial unit in Kerala is observed to be consistently violating environmental norms by discharging untreated industrial waste into a nearby wetland, leading to severe ecological damage and public health concerns. Under the provisions of the Environment (Protection) Act, 1986, what is the most appropriate action the Central Government can take to address this situation directly?

Accepted Answer

B. Issue specific directions, including the closure, prohibition, or regulation of the industry's operations, even in the absence of specific rules for that particular type of waste. — Section 5 of the Environment (Protection) Act, 1986, grants the Central Government extensive powers to issue directions to any person, officer, or authority. These directions can include orders for the closure, prohibition, or regulation of any industry, operation, or process to prevent or control environmental pollution, making it the most direct and effective action. Options A, C, and D represent indirect actions, responsibilities of other bodies, or defer immediate regulatory action, which are not the primary direct power of the Central Government under EPA for such a violation.

Answer

A. Direct the State Pollution Control Board to initiate criminal proceedings against the industrial unit's management for environmental negligence.

Answer

C. Advise the local self-government to impose heavy fines on the industrial unit for violating municipal waste disposal regulations.

Answer

D. Form a high-level committee to conduct a detailed study on the long-term environmental impacts before any regulatory action can be taken.

Question 6

Max Weber's key concept was:‌​‍

Accepted Answer

Verstehen (understanding) + ideal types — Weber: interpretive sociology (verstehen) — understanding meanings actors attach to their behaviour. ‌​‍'Protestant Ethic and Spirit of Capitalism' (1905).

Answer

Class struggle

Answer

Symbolic interactionism

Answer

Social facts

Question 7

India assumed G20 presidency on:‌​‍

Accepted Answer

1 December 2022 — India assumed the G20 presidency on 1 December 2022, holding it until 30 November 2023.‌​‍

Answer

1 January 2023

Answer

15 August 2022

Answer

1 November 2022

Question 8

A teacher observes that students struggle with understanding a particular concept in science. To address this, the teacher decides to use analogies and visual aids in the next lesson. After the lesson, the teacher collects student feedback and adjusts the approach. This process best exemplifies which step in action research?

Accepted Answer

D. Reflecting and replanning — The scenario describes the teacher collecting feedback and adjusting the teaching method, which aligns with the 'reflecting and replanning' phase of action research. This step is crucial for continuous improvement, unlike the other phases (A, B, C) which are earlier stages in the process.

Answer

A. Identifying the problem

Answer

B. Implementing an intervention

Answer

C. Collecting data

Question 9

When an adolescent prioritizes spending time with their peer group over family activities and increasingly seeks independence from parental control, which primary social developmental task are they demonstrating?

Accepted Answer

C. Achieving autonomy and forming peer relationships. — Adolescence is a critical period for achieving autonomy from parents and forming strong, influential peer relationships, which are essential for identity formation and social skill development. Developing early attachment bonds and overcoming stranger anxiety are tasks of infancy, while establishing a sense of industry is a task of middle childhood (Erikson's stages).

Answer

A. Developing early attachment bonds.

Answer

B. Establishing a sense of industry.

Answer

D. Overcoming stranger anxiety.

Question 10

Dronacharya Award is given to:‌​‍

Accepted Answer

Best coach — Dronacharya Award is for outstanding coaches who have trained medal-winning athletes.‌​‍

Answer

Best sportsperson

Answer

Best referee

Answer

Best sports journalist

VFA Mixed Practice Test #542