VFA Mixed Practice Test #269

Question 1

Which of the following factors does the photoelectric effect depend on?‌​‍

Accepted Answer

Frequency (threshold); intensity affects current — Below threshold frequency, no emission. Explained by Einstein (Nobel 1921).‌​‍

Answer

Intensity only

Answer

Only temperature

Answer

Colour only

Question 2

The mirror used as a rear-view mirror in vehicles is:‌​‍

Accepted Answer

Convex mirror — Convex mirrors are used as rear-view mirrors because they provide a wider field of view, allowing drivers to see more of the road behind.‌​‍

Answer

Plane mirror

Answer

Concave mirror

Answer

Parabolic mirror

Question 3

Mango:‌​‍

Accepted Answer

All — National fruit.‌​‍

Answer

National Fruit

Answer

Sacred

Answer

State

Question 4

Which of the following statements most accurately reflects a key limitation of purely income or consumption-based poverty lines in comprehensively understanding poverty in a developing country like India?

Accepted Answer

B. They fail to capture the multi-dimensional nature of deprivation, such as lack of access to healthcare, education, and sanitation. — Purely income or consumption-based poverty lines, while useful, often overlook non-monetary aspects of deprivation. The Multidimensional Poverty Index (MPI) was developed precisely to address this limitation by incorporating indicators related to health, education, and living standards, providing a more holistic view of poverty. Options A, C, and D describe other challenges or characteristics, but B highlights the fundamental conceptual limitation of these traditional measures in capturing the full spectrum of deprivation.

Answer

A. They tend to overestimate poverty due to underreporting of informal sector earnings.

Answer

C. They are susceptible to rapid fluctuations in market prices, making comparisons over time difficult.

Answer

D. They do not account for regional disparities in cost of living, leading to inaccurate state-level poverty estimates.

Question 5

Niagara Falls between:

Accepted Answer

USA and Canada — USA-Canada border.

Answer

USA and Mexico

Answer

Canada and Greenland

Answer

USA and Cuba

Question 6

A patient is kept NPO (nil per os) for an elective surgical procedure scheduled for the next morning. Which primary metabolic process will be immediately activated to maintain stable blood glucose levels in the fasting state?

Accepted Answer

C. Glycogenolysis — Glycogenolysis is the breakdown of stored glycogen in the liver to release glucose into the bloodstream, which is the primary mechanism for maintaining blood glucose during short-term fasting. Glycolysis breaks down glucose, glycogenesis stores glucose, and lipogenesis converts excess glucose into fat.

Answer

A. Glycolysis

Answer

B. Glycogenesis

Answer

D. Lipogenesis

Question 7

A patient is dehydrated, and their body is attempting to conserve water. Which part of the nephron is most significantly influenced by Antidiuretic Hormone (ADH) to increase water reabsorption and produce concentrated urine?

Accepted Answer

D. Collecting duct — The collecting duct is the primary site where ADH acts, increasing the permeability of its walls to water, thereby promoting water reabsorption back into the bloodstream and leading to the production of concentrated urine. Bowman's capsule is for filtration. The proximal convoluted tubule reabsorbs most filtered substances but is not regulated by ADH. The Loop of Henle establishes the medullary osmotic gradient, but ADH primarily acts on the collecting duct.

Answer

A. Bowman's capsule

Answer

B. Proximal convoluted tubule

Answer

C. Loop of Henle

Question 8

A child is brought to the clinic with severe flatulence, abdominal distension after eating even a small amount, and a strong craving for sweets. Symptoms are typically worse between 4 PM and 8 PM. Mentally, the child shows a dictatorial attitude towards younger siblings but is timid with strangers. Which remedy fits this picture?

Accepted Answer

B. Lycopodium — Lycopodium is strongly indicated by the characteristic flatulence and distension, craving for sweets, and the specific aggravation between 4 PM and 8 PM. The mental picture of dictatorial behavior at home and timidity outside also points to Lycopodium. China is known for debility from fluid loss and periodicity, while Carbo vegetabilis presents with sluggishness and burning pains.

Answer

A. China

Answer

C. Carbo vegetabilis

Answer

D. Argentum nitricum

Question 9

Vakkom Abdul Khader Moulavi founded which newspaper?‌​‍

Accepted Answer

Swadeshabhimani — Vakkom Moulavi founded Swadeshabhimani (1905); later edited by Ramakrishna Pillai.‌​‍

Answer

Manorama

Answer

Mathrubhumi

Answer

Deepika

Question 10

The captain of the volunteer group of Guruvayoor Satyagraha was:

Accepted Answer

A.K. Gopalan — A.K. Gopalan led the volunteer group during Guruvayoor Satyagraha (1931-32).

Answer

Gandhi

Answer

Sree Narayana Guru

Answer

Chattampi Swamikal

VFA Mixed Practice Test #269