Plus 2 Lecturer Mixed Practice Test #509

Question 1

In a nuclear reactor, what is the primary purpose of the moderator?

Accepted Answer

B. To slow down fast neutrons to thermal energies for sustained chain reactions. — The moderator in a nuclear reactor slows down fast neutrons (released during fission) to thermal energies, which increases the likelihood of further fission reactions and sustains the chain reaction. Option A describes the role of control rods, not the moderator. Option C refers to shielding, typically handled by the reactor's biological shield. Option D pertains to energy conversion, which is the function of the turbine and generator system.

Answer

A. To absorb excess neutrons and control the reaction rate.

Answer

C. To shield workers from radiation emitted during fission.

Answer

D. To convert thermal energy into electrical energy via turbines.

Question 2

Number of districts:‌​‍

Accepted Answer

14 — 14 districts.‌​‍

Answer

12

Answer

13

Answer

15

Question 3

Kerala's Food Security Act implementation:‌​‍

Accepted Answer

100% coverage — Among first states to implement fully.‌​‍

Answer

75%

Answer

50%

Answer

Unknown

Question 4

A newborn at 1 minute of life has a heart rate of 90 bpm, weak cry, some flexion of extremities, and a pink body with blue extremities. What is the APGAR score for this newborn?

Accepted Answer

C. 6 — APGAR scoring: Heart rate (1 for <100), respiratory effort (1 for weak cry), muscle tone (1 for some flexion), reflex irritability (not mentioned, assumed 0), color (1 for acrocyanosis). Total = 1+1+1+0+1 = 4. Wait, correction: reflex irritability is not assessed here, but typically if cry is present, it implies reflex response. Re-evaluating: HR=1, RR=1, Tone=1, Reflex=1 (cry), Color=1. Total=5. However, based on standard interpretation, the correct APGAR is 5.

Answer

A. 4

Answer

B. 5

Answer

D. 7

Question 5

Escape velocity from Earth's surface is approximately:‌​‍

Accepted Answer

11.2 km/s — Escape velocity = √(2gR) ≈ 11.2 km/s from Earth's surface.‌​‍

Answer

25 km/s

Answer

7.9 km/s

Answer

9.8 km/s

Question 6

Kerala's first Lok Sabha election:

Accepted Answer

1952 — 1952 — before Kerala formation; earlier Travancore-Cochin.

Answer

1957

Answer

1962

Answer

1967

Question 7

Tubectomy is female sterilisation by:

Accepted Answer

Blocking fallopian tubes — Permanent. Vasectomy for males — vas deferens blocked. Sperm/egg production continues but cannot reach.

Answer

Removing ovaries

Answer

Removing uterus

Answer

Chemical

Question 8

A reducing agent in a redox reaction is itself:‌​‍

Accepted Answer

Oxidised — Reducing agent donates electrons (reduces other), thus gets oxidised itself.‌​‍

Answer

Reduced

Answer

Neither

Answer

Destroyed

Question 9

A teacher asks students to work in pairs to plan a hypothetical trip to a new city, including discussing places to visit, transport, and accommodation, and then present their plan to the class. Which language teaching method is primarily being employed here?

Accepted Answer

C. Communicative Language Teaching (CLT) — The activity emphasizes meaningful interaction, negotiation of meaning, and task completion, which are hallmarks of Communicative Language Teaching (CLT). Students are using language for a real-world purpose, developing communicative competence. Grammar-Translation focuses on rules and translation, Audio-Lingual on drills and habit formation, and the Direct Method on direct association without translation but often less on complex collaborative tasks.

Answer

A. Grammar-Translation Method

Answer

B. Audio-Lingual Method

Answer

D. Direct Method

Question 10

Which of the following is a key objective of the National Health Policy (NHP) 2017 in India?

Accepted Answer

C. To allocate 5% of GDP to the health sector by 2025 — The National Health Policy 2017 aims to increase public health expenditure to 2.5% of GDP by 2025, with further efforts to reach 5% over time. Option A is incorrect as the policy does not specify a fixed doctor-population ratio. Option B is incorrect because the target for IMR is set at 28 per 1000 live births by 2019, not 20. Option D is incorrect as the policy focuses on health infrastructure based on local needs rather than a uniform bed ratio.

Answer

A. To achieve a doctor-population ratio of 1:1000 by 2025

Answer

B. To reduce infant mortality rate to 20 per 1000 live births by 2025

Answer

D. To ensure availability of 2 beds per 1000 population in all districts by 2025

Plus 2 Lecturer Mixed Practice Test #509