DCOA Mixed Practice Test #531

Question 1

'Garibi Hatao' slogan during:‌​‍

Accepted Answer

5th Plan — 5th Plan (1974-79). Indira Gandhi's slogan.‌​‍

Answer

4th Plan

Answer

6th Plan

Answer

7th Plan

Question 2

India's 2024 General Election phases:‌​‍

Accepted Answer

7 phases — 7 phases, April-June 2024.‌​‍

Answer

4 phases

Answer

5 phases

Answer

6 phases

Question 3

Microbes in household products:‌​‍

Accepted Answer

Lactobacillus (curd), Saccharomyces (bread, beer), Penicillium (cheese) — Fermentation makes food. ‌​‍Idli batter — Leuconostoc. Propionibacterium in Swiss cheese (holes from CO₂).

Answer

Only pathogenic

Answer

Harmful

Answer

None

Question 4

Which enzyme, primarily secreted in the stomach, is responsible for initiating the digestion of proteins?

Accepted Answer

C. Pepsin — Pepsin is a powerful proteolytic enzyme secreted by the chief cells of the stomach in its inactive form, pepsinogen, and activated by hydrochloric acid. It is responsible for beginning the breakdown of proteins into smaller polypeptides. Amylase digests carbohydrates, lipase digests fats, and trypsin is a pancreatic enzyme that continues protein digestion in the small intestine.

Answer

A. Amylase

Answer

B. Lipase

Answer

D. Trypsin

Question 5

An element 'X' is characterized by an extremely high first ionization energy and a general inertness towards chemical reactions under standard conditions. Element 'Y', located in the same period as 'X', exhibits a very low first ionization energy and is highly reactive, readily forming cations. Which of the following conclusions can be drawn about elements X and Y based on their periodic positions and properties?

Accepted Answer

C. Element X is a noble gas, and Element Y is an alkali metal. — Noble gases (Group 18) possess full valence shells, resulting in exceptionally high ionization energies and chemical inertness, fitting the description of element X. Alkali metals (Group 1) have only one valence electron, leading to very low ionization energies and high reactivity to form +1 cations, matching element Y. Other options describe elements with different ionization energy characteristics or reactivity patterns that do not align with the extreme properties given for X and Y.

Answer

A. Element X is a transition metal, and Element Y is a Group 14 element.

Answer

B. Element X is a non-metal from Group 15, and Element Y is a metal from Group 13.

Answer

D. Element X is a halogen, and Element Y is an alkaline earth metal.

Question 6

CM West Bengal:‌​‍

Accepted Answer

Mamata Banerjee — Mamata Banerjee (TMC).‌​‍

Answer

Biman

Answer

Abhishek

Answer

Suvendu

Question 7

The mirror used in headlights is:‌​‍

Accepted Answer

Concave — Concave mirrors produce a focused beam of light — used in headlights, torches, and solar cookers.‌​‍

Answer

Plane

Answer

Convex

Answer

Cylindrical

Question 8

Which of the following packaging materials is BEST suited for a light-sensitive injectable drug?

Accepted Answer

B. Amber glass vial — Amber glass blocks UV light, protecting light-sensitive drugs. Clear glass and plastic allow light penetration, while a foil seal alone does not provide adequate light protection for the entire container.

Answer

A. Clear glass vial

Answer

C. Plastic vial with a foil seal

Answer

D. Polypropylene syringe

Question 9

A new curriculum framework for primary education is being developed in Kerala. Which autonomous body is primarily responsible for designing the syllabus, preparing textbooks, and formulating teacher training modules in alignment with this framework?

Accepted Answer

B. State Council of Educational Research and Training (SCERT) — SCERT is the apex academic body in the state responsible for curriculum development, textbook preparation, and designing teacher training programs. DPI is the administrative head of school education, SSA focuses on universal elementary education implementation, and KSLMA on adult literacy initiatives.

Answer

A. Directorate of Public Instruction (DPI)

Answer

C. Sarva Shiksha Abhiyan (SSA)

Answer

D. Kerala State Literacy Mission Authority (KSLMA)

Question 10

Neeraj Chopra won Olympic gold in:‌​‍

Accepted Answer

Javelin Throw — Neeraj Chopra won gold in Javelin Throw at Tokyo 2020 Olympics (held 2021).‌​‍

Answer

Shot Put

Answer

Discus Throw

Answer

Hammer Throw

DCOA Mixed Practice Test #531