Plus 2 Lecturer Mixed Practice Test #832

Question 1

Davis Cup is for:‌​‍

Accepted Answer

Tennis — Davis Cup is the premier international men's team event in tennis.‌​‍

Answer

Basketball

Answer

Cricket

Answer

Badminton

Question 2

An electric heater operating at 230 V draws 2 A current. Its power is:‌​‍

Accepted Answer

460 W — P = VI = 230 × 2 = 460 W.‌​‍

Answer

115 W

Answer

230 W

Answer

1000 W

Question 3

Growth response to touch (e.g., tendrils coiling) is called:

Accepted Answer

Thigmotropism — Thigmotropism = response to touch; enables climbing plants to coil around supports.

Answer

Phototropism

Answer

Chemotropism

Answer

Geotropism

Question 4

The dimensional formula of Planck's constant h is:‌​‍

Accepted Answer

[M L^2 T^-1] — E = hν → h = E/ν = [ML²T⁻²]/[T⁻¹] = [ML²T⁻¹]. ‌​‍Same dimensions as angular momentum.

Answer

[M L^-2 T]

Answer

[M L T^-1]

Answer

[M L^2 T^-2]

Question 5

Tsunami speed in deep ocean:

Accepted Answer

~800 km/h — Fast in deep; slows in shallow.

Answer

100 km/h

Answer

50 km/h

Answer

200 km/h

Question 6

In Whittaker's five-kingdom classification, which kingdom includes unicellular eukaryotes?‌​‍

Accepted Answer

Protista — Protista includes unicellular eukaryotes (protozoans, diatoms).‌​‍

Answer

Monera

Answer

Plantae

Answer

Fungi

Question 7

Double fertilization in angiosperms produces:‌​‍

Accepted Answer

Zygote (2n) and triploid endosperm (3n) — One sperm + egg → zygote. ‌​‍Other sperm + two polar nuclei → endosperm. Unique to flowering plants.

Answer

Zygote only

Answer

Two zygotes

Answer

Only endosperm

Question 8

Dopamine role:‌​‍

Accepted Answer

Reward, movement — Multiple roles.‌​‍

Answer

None

Answer

Only hearing

Answer

Only vision

Question 9

Which is NOT a colligative property?‌​‍

Accepted Answer

Viscosity — Colligative properties depend on particle number: ΔTb, ΔTf, osmotic pressure, vapour pressure lowering.‌​‍

Answer

Freezing point depression

Answer

Boiling point elevation

Answer

Osmotic pressure

Question 10

The primary site for the absorption of digested nutrients in the human body is the:

Accepted Answer

C. Small intestine — The small intestine is specifically adapted with villi and microvilli to maximize surface area for the absorption of most digested nutrients, including carbohydrates, proteins, and fats. The stomach primarily handles digestion and some minor absorption, while the large intestine absorbs water and electrolytes. The esophagus is for transport.

Answer

A. Stomach

Answer

B. Large intestine

Answer

D. Esophagus

Plus 2 Lecturer Mixed Practice Test #832