VFA Mixed Practice Test #388

Question 1

Chintavishtayaya Sita by:‌​‍

Accepted Answer

Kumaran Asan — Kumaran Asan's famous poem.‌​‍

Answer

Ulloor

Answer

Vallathol

Answer

Changampuzha

Question 2

Which organ purifies blood in the human body?‌​‍

Accepted Answer

Kidney — Kidneys filter and purify blood, removing waste products and excess water to form urine. ‌​‍Each kidney has about 1 million nephrons.

Answer

Lungs

Answer

Heart

Answer

Liver

Question 3

The Salt Satyagraha in Kerala (1930) was carried out at:‌​‍

Accepted Answer

Both Payyannur and Kozhikode beach — In 1930, K. ‌​‍Kelappan led the Salt March from Calicut to Payyannur where salt was made; K. Kesava Menon also led at Kozhikode beach.

Answer

Payyannur

Answer

Kozhikode beach

Answer

Vadakara

Question 4

Electric current is the rate of flow of:

Accepted Answer

Electric charge — I = Q/t; current is charge flow per unit time.

Answer

Electrons only

Answer

Voltage

Answer

Resistance

Question 5

Smallest district by area:

Accepted Answer

Alappuzha — Alappuzha — 1,414 sq km, smallest.

Answer

Thrissur

Answer

Ernakulam

Answer

Kottayam

Question 6

Which of the following statements about chiral drugs is FALSE?

Accepted Answer

B. Enantiomers of a chiral drug always have identical pharmacological activity. — Enantiomers of a chiral drug typically have different pharmacological activities, potencies, and pharmacokinetic profiles because biological systems (receptors, enzymes) are chiral and can selectively interact with one enantiomer over the other. The other statements correctly describe aspects of chirality in drugs.

Answer

A. Chiral drugs contain at least one asymmetric carbon atom.

Answer

C. Stereoisomers have the same molecular formula but different spatial arrangements.

Answer

D. The body can often distinguish between enantiomers, leading to different pharmacokinetic profiles.

Question 7

In the context of action research, why is the active involvement of the teacher (researcher) throughout all phases considered crucial?

Accepted Answer

C. To facilitate direct application of findings and immediate improvement of their own teaching practice. — The core purpose of action research is to empower practitioners to improve their own practice. The teacher's active involvement ensures that the research questions are relevant to their context, the interventions are practical, and the findings can be directly applied to foster immediate improvements in their classroom. Options A, B, and D are not the primary reasons for the teacher's central role in action research.

Answer

A. To ensure compliance with external research ethics boards.

Answer

B. To guarantee the research findings are generalizable to other schools.

Answer

D. To secure funding for future research projects.

Question 8

Mattupetty Dam in:

Accepted Answer

Idukki (Munnar) — Tourist spot near Munnar.

Answer

Palakkad

Answer

Wayanad

Answer

TVM

Question 9

Gauss's law: ∮E·dA = ?‌​‍

Accepted Answer

q/ε₀ (enclosed charge) — Total flux through closed surface depends only on enclosed charge. ‌​‍Useful for symmetric geometries.

Answer

qε₀

Answer

q

Answer

E·r²

Question 10

Which of the following is a key difference between DNA and RNA nucleotides?

Accepted Answer

B. DNA contains deoxyribose sugar, while RNA contains ribose sugar — DNA nucleotides contain deoxyribose sugar and the bases adenine, thymine, cytosine, and guanine, while RNA nucleotides contain ribose sugar and use uracil instead of thymine. Both DNA and RNA are polynucleotides with a phosphate backbone.

Answer

A. DNA contains uracil, while RNA contains thymine

Answer

C. DNA is single-stranded, while RNA is double-stranded

Answer

D. DNA has a phosphate backbone, while RNA does not

VFA Mixed Practice Test #388