VFA Mixed Practice Test #395

Question 1

Planck's quantum of energy:‌​‍

Accepted Answer

E = hν — h = 6.626 × 10⁻³⁴ J·s. Einstein used this to explain photoelectric effect.‌​‍

Answer

E = mc²

Answer

E = kT

Answer

E = ½mv²

Question 2

India's MRFA tender:‌​‍

Accepted Answer

Multi-role fighter acquisition — Ongoing competition.‌​‍

Answer

Cancelled

Answer

Complete

Answer

Ongoing

Question 3

Self-inductance L of coil is:‌​‍

Accepted Answer

NΦ/I — EMF = -L dI/dt. Unit: Henry. Energy stored: ½LI².‌​‍

Answer

I/V

Answer

E/t

Answer

Φ

Question 4

What defines a nuclear family?‌​‍

Accepted Answer

Parents + unmarried children — Trend in urban India. ‌​‍Reasons: migration, housing cost, women's work. Traditional joint family still in rural areas.

Answer

Only parents

Answer

Only children

Answer

Joint

Question 5

Keralavarma Valiyakoyi Thampuran translated which major work into Malayalam?‌​‍

Accepted Answer

Shakuntalam — Keralavarma Valiyakoyi Thampuran translated Kalidasa's Shakuntalam (Abhijnanashakuntalam) into Malayalam, making this Sanskrit classic accessible to Malayalam readers.‌​‍

Answer

Ramayana

Answer

Mahabharata

Answer

Bhagavatam

Question 6

Lakhpati Didi scheme aims to create how many lakhpati women in SHGs?‌​‍

Accepted Answer

3 crore — The Lakhpati Didi scheme targets creating 3 crore women in Self-Help Groups earning Rs 1 lakh or more annually.‌​‍

Answer

1 crore

Answer

5 crore

Answer

2 crore

Question 7

The cat ran away from her and disappeared ___ the hill.

Accepted Answer

over — 'Disappeared over the hill' — moving past the top.

Answer

across

Answer

above

Answer

along

Question 8

The Truman Doctrine (1947) committed USA to:‌​‍

Accepted Answer

Containing Soviet expansion + supporting free peoples — President Harry Truman announced US policy of containment (Mar 1947). ‌​‍Aid to Greece, Turkey against communist threats.

Answer

Disarmament

Answer

Isolationism

Answer

Colonial policy

Question 9

Kerala's characteristic laterite soils are extensively used for specific agricultural practices. Which climatic condition is most crucial for the formation of these soils, and what is its primary effect on the soil's nutrient content?

Accepted Answer

C. High temperature and heavy rainfall, causing intense leaching of soluble bases and silica. — Laterite soils form under hot and humid tropical conditions characterized by high temperatures and heavy rainfall. This climate leads to intense leaching, where soluble bases (like calcium, magnesium, potassium) and silica are washed away from the soil profile. This process leaves behind a high concentration of relatively insoluble iron and aluminum oxides, making laterite soils typically less fertile due to nutrient depletion.

Answer

A. High temperature and moderate rainfall, leading to accumulation of organic matter.

Answer

B. Low temperature and high humidity, promoting retention of soluble minerals.

Answer

D. Arid conditions with sparse rainfall, concentrating iron and aluminum oxides.

Question 10

During a peer feedback session in microteaching, a colleague notes that the teacher’s 'reinforcement' was inconsistent (sometimes praising, sometimes ignoring correct answers). What is the most effective way to address this feedback?

Accepted Answer

B. Use specific and timely praise for correct answers and ignore incorrect ones — Specific and timely praise (B) reinforces desired behaviors effectively, while ignoring incorrect answers (A) or over-reinforcing all answers (D) dilutes its impact. Non-verbal cues alone (C) may not suffice for clear feedback.

Answer

A. Provide reinforcement only for incorrect answers to motivate students

Answer

C. Avoid verbal reinforcement and rely solely on non-verbal cues like nodding

Answer

D. Reinforce every answer, regardless of correctness, to maintain student morale

VFA Mixed Practice Test #395