VFA Mixed Practice Test #468

Question 1

In a healthcare setting, the most effective single measure to prevent the spread of healthcare-associated infections (HAIs) is:

Accepted Answer

C. Strict adherence to hand hygiene protocols. — Strict adherence to hand hygiene protocols (handwashing with soap and water or using alcohol-based hand rub) is universally recognized as the single most effective measure to prevent the transmission of pathogens and reduce the incidence of healthcare-associated infections. While other measures like PPE, disinfection, and isolation are crucial, hand hygiene has the broadest impact across all patient care activities.

Answer

A. Routine environmental disinfection.

Answer

B. Proper use of personal protective equipment (PPE).

Answer

D. Isolation of infected patients.

Question 2

The keto group C=O (between two carbons) is characteristic of:‌​‍

Accepted Answer

Ketones — Ketones have C=O with two C attached (e.g., acetone CH₃COCH₃).‌​‍

Answer

Acids

Answer

Alcohols

Answer

Aldehydes

Question 3

Dolly the sheep (1997) was produced by:‌​‍

Accepted Answer

Somatic cell nuclear transfer (cloning) by Ian Wilmut — First mammal cloned from adult somatic cell. ‌​‍Roslin Institute, Scotland. Premature aging (shorter telomeres).

Answer

Selective breeding

Answer

IVF

Answer

Parthenogenesis

Question 4

What is the tenure of the Chairperson and members of the National Human Rights Commission (NHRC) after the 2019 amendment?

Accepted Answer

3 years or age 70 — After the 2019 amendment to the Protection of Human Rights Act, the tenure of the NHRC Chairperson and members is 3 years or until they attain the age of 70 years.

Answer

5 years or age 65

Answer

6 years or age 65

Answer

5 years or age 70

Question 5

ICC Cricket World Cup 2023 winner:‌​‍

Accepted Answer

Australia — Australia beat India in the final at Ahmedabad.‌​‍

Answer

South Africa

Answer

England

Answer

India

Question 6

The NCERT Class 11 Sociology book 'Understanding Sociology' covers:

Accepted Answer

Sociological theories, methods, institutions (family, education, economy, polity, religion) — Standard intro sociology curriculum — theories, research, and major social institutions.

Answer

Only Indian sociology

Answer

Only statistics

Answer

Only politics

Question 7

Kerala's 'Public Education Rejuvenation Mission' (Pothuvidyabhyasa Samrakshana Yagnam) was launched with a vision to transform public education. Which of the following was a key strategy adopted under this mission to achieve its objectives?

Accepted Answer

C. Implementing 'Hi-Tech' classroom projects with advanced digital learning tools. — The Public Education Rejuvenation Mission heavily emphasized modernizing public school infrastructure and teaching methods, with 'Hi-Tech' classrooms being a prominent initiative. Options A and B contradict the mission's goals of strengthening public education and making it accessible, while D is an overstatement of the administrative shift.

Answer

A. Reducing the number of public schools to consolidate resources.

Answer

B. Introducing a mandatory fee structure for all public school students.

Answer

D. Shifting complete administrative control of public schools to local self-governments.

Question 8

Vaccines work by:‌​‍

Accepted Answer

Stimulating immune system to recognise pathogens (antibody memory) — Vaccines expose immune system to weakened/dead pathogens or antigens → protective memory response.‌​‍

Answer

Killing disease directly

Answer

Breaking bones

Answer

Providing nutrients

Question 9

An antacid like magnesium hydroxide neutralises excess stomach acid by:

Accepted Answer

Acid-base neutralisation — Mg(OH)₂ + 2HCl → MgCl₂ + 2H₂O (neutralising HCl in stomach).

Answer

Oxidation

Answer

Reduction

Answer

Combustion

Question 10

Which of the following conditions is a major contraindication for the use of ibuprofen?

Accepted Answer

B. History of peptic ulcer disease. — NSAIDs like ibuprofen inhibit prostaglandin synthesis, which can compromise the protective gastric mucosal barrier. This action can lead to or exacerbate peptic ulcers and increase the risk of gastrointestinal bleeding, making a history of peptic ulcer disease a major contraindication for their use.

Answer

A. Mild hypertension.

Answer

C. Controlled type 2 diabetes.

Answer

D. Seasonal allergies.

VFA Mixed Practice Test #468