Plus 2 Lecturer Mixed Practice Test #181

Question 1

Fort St. Angelo:‌​‍

Accepted Answer

Kannur — Kannur — Portuguese fort.‌​‍

Answer

Kasaragod

Answer

Kochi

Answer

Kozhikode

Question 2

Which of the following sentences is an example of the present perfect tense?‌​‍

Accepted Answer

I have eaten (action completed with present relevance) — 'Have/has + past participle'. ‌​‍Just, already, yet, since, for. Connects past to present.

Answer

I eat

Answer

I was eating

Answer

I will eat

Question 3

India's 2024 military exercise 'Yudh Abhyas':‌​‍

Accepted Answer

With USA — India-US annual exercise.‌​‍

Answer

With Japan

Answer

With UK

Answer

With Russia

Question 4

Growth hormone deficiency:‌​‍

Accepted Answer

Dwarfism — Pituitary dwarfism.‌​‍

Answer

Gigantism

Answer

None

Answer

Cretinism

Question 5

Avogadro's number is approximately:‌​‍

Accepted Answer

6.022 × 10²³ — NA = 6.02214076 × 10²³ mol⁻¹ (exact SI definition since 2019).‌​‍

Answer

9.1 × 10⁻³¹

Answer

1.6 × 10⁻¹⁹

Answer

6.022 × 10¹⁹

Question 6

Antonym of CONDENSE:‌​‍

Accepted Answer

Expand — Condense ↔ expand.‌​‍

Answer

Thicken

Answer

Shrink

Answer

Compact

Question 7

Vigilance and Anti-Corruption Bureau Kerala:‌​‍

Accepted Answer

Statutory — State vigilance agency.‌​‍

Answer

Administrative

Answer

Political

Answer

None

Question 8

The bicarbonate buffer system (H2CO3/HCO3-) is the most important extracellular buffer in the human body. Its primary role is to maintain the physiological pH of blood within a narrow range. Which of the following statements accurately describes its function?

Accepted Answer

B. It quickly neutralizes excess H+ ions by forming carbonic acid, which can then be converted to CO2 and excreted by the lungs. — The bicarbonate buffer system acts rapidly to buffer pH changes in the extracellular fluid. When excess H+ ions are present, bicarbonate (HCO3-) combines with them to form carbonic acid (H2CO3). Carbonic acid then dissociates into CO2 and water, allowing CO2 to be expelled by the lungs, effectively removing acid from the body.

Answer

A. It primarily buffers intracellular pH changes.

Answer

C. It actively transports H+ ions out of the body via the kidneys.

Answer

D. It directly consumes CO2 to produce bicarbonate ions.

Question 9

During the cardiac cycle, the term 'systole' refers to which event of the heart?

Accepted Answer

C. Contraction of the ventricles — Systole refers to the contraction phase of the cardiac cycle, specifically ventricular systole, where the ventricles contract to eject blood into the aorta and pulmonary artery. Diastole, on the other hand, refers to the relaxation and filling phase of the heart. Atrial events and valve actions are part of the overall cycle but not the sole definition of systole.

Answer

A. Filling of the atria

Answer

B. Relaxation of the atria

Answer

D. Opening of the atrioventricular valves

Question 10

The 'Connect to Work' scheme in Kerala provides a monthly stipend of:‌​‍

Accepted Answer

Rs 1,000 — Rs 1,000/month to job-seekers aged 18-35. ‌​‍Over 75,376 beneficiaries covered so far.

Answer

Rs 500

Answer

Rs 1,500

Answer

Rs 2,000

Plus 2 Lecturer Mixed Practice Test #181