Plus 2 Lecturer Mixed Practice Test #640

Question 1

Which type of learning best explains a child developing a fear of needles after a painful injection during a hospital visit?

Accepted Answer

B. Classical conditioning — Classical conditioning involves associating a neutral stimulus (the needle) with an unconditioned stimulus (the pain of injection) to elicit a conditioned response (fear). Operant conditioning involves learning through rewards and punishments, observational learning through imitation, and cognitive learning through problem-solving, none of which primarily describe this direct stimulus-response association.

Answer

A. Operant conditioning

Answer

C. Observational learning

Answer

D. Cognitive learning

Question 2

A photon is a quantum of:‌​‍

Accepted Answer

Electromagnetic radiation (light) — Photons are massless particles that carry EM energy; E = hf.‌​‍

Answer

Electric current

Answer

Heat energy

Answer

Sound

Question 3

The most electronegative element is:‌​‍

Accepted Answer

Fluorine — Fluorine has highest electronegativity (3.98 on Pauling scale).‌​‍

Answer

Nitrogen

Answer

Chlorine

Answer

Oxygen

Question 4

Glomerular filtration rate (GFR) is approximately:

Accepted Answer

125 mL/min — ~180 L/day filtered; ~178 L reabsorbed; ~1.5 L urine. Juxtaglomerular apparatus regulates GFR.

Answer

25 mL/min

Answer

1000 mL/min

Answer

10 mL/min

Question 5

Venice of the East:

Accepted Answer

Alappuzha — Alappuzha (Alleppey) — backwaters.

Answer

Kochi

Answer

Kollam

Answer

Kumarakom

Question 6

Shakespeare's 'seven ages of man' ends with the stage characterised by:‌​‍

Accepted Answer

Second childhood (sans teeth, sans eyes…) — Final age: 'second childishness and mere oblivion / sans teeth, sans eyes, sans taste, sans everything'.‌​‍

Answer

Infancy

Answer

Youth

Answer

Middle age

Question 7

Like poles of magnets:‌​‍

Accepted Answer

Repel — Like poles repel; unlike poles attract.‌​‍

Answer

Have no interaction

Answer

Attract

Answer

Always touch

Question 8

The plant hormone responsible for growth towards light (phototropism) is:‌​‍

Accepted Answer

Auxin — Auxin (indole-3-acetic acid) causes differential growth producing phototropism.‌​‍

Answer

Ethylene

Answer

Abscisic acid

Answer

Cytokinin

Question 9

Brewster's angle:

Accepted Answer

Angle at which refracted ray is perpendicular to reflected; reflected is fully polarised — tan θB = n₂/n₁. For glass-air θB ≈ 57°. Polarising sunglasses use this principle.

Answer

45°

Answer

Zero

Answer

Critical angle

Question 10

Do you remember the passenger ___ travelled yesterday without a ticket. ‌​‍(relative pronoun)

Accepted Answer

who — 'Who' = subject relative pronoun for a person (the passenger who travelled).‌​‍

Answer

whom

Answer

which

Answer

whose

Plus 2 Lecturer Mixed Practice Test #640