DCOA Mixed Practice Test #699

Question 1

What defines the order of a differential equation?‌​‍

Accepted Answer

Highest derivative order — Order: highest derivative. ‌​‍Degree: power of highest derivative (after rationalizing).

Answer

Degree of highest derivative

Answer

Always 1

Answer

Sum of all derivatives

Question 2

RSS 100 years:‌​‍

Accepted Answer

2025 centenary — Founded 1925.‌​‍

Answer

1925-2025

Answer

2023

Answer

2030

Question 3

Samagra Shiksha Kerala (SSK), the integrated scheme for school education in Kerala, emphasizes several key areas. Which of the following is NOT a primary objective or component of SSK?

Accepted Answer

D. Establishing new residential schools exclusively for gifted students across districts. — Samagra Shiksha Kerala (SSK) is an overarching program for school education, aiming for holistic development and inclusive, equitable quality education from pre-school to senior secondary. While SSK supports various educational needs, establishing *new residential schools exclusively* for gifted students is not a primary objective; its focus is on integrated and inclusive education for all children within the existing school structure and improving overall quality.

Answer

A. Providing quality education to all children from pre-school to senior secondary level.

Answer

B. Promoting vocational education and skill development from elementary to secondary stages.

Answer

C. Ensuring equitable and inclusive classroom environments for all learners.

Question 4

Adi Shankaracharya born at:‌​‍

Accepted Answer

Kaladi — Kaladi, Ernakulam (~788 CE).‌​‍

Answer

Sivagiri

Answer

Guruvayur

Answer

Kodungallur

Question 5

Pampas grasslands in:‌​‍

Accepted Answer

Argentina, Uruguay — Temperate grasslands S America.‌​‍

Answer

USA

Answer

Africa

Answer

Russia

Question 6

Rain gauge measures:‌​‍

Accepted Answer

Rainfall — Rain gauge measures the amount of rainfall in millimetres.‌​‍

Answer

Wind speed

Answer

Humidity

Answer

Temperature

Question 7

Which literary form is most effective for developing critical thinking and analytical skills in students while fostering collaborative learning in a classroom setting?

Accepted Answer

A. Debate — Debate is designed to enhance critical thinking by requiring students to analyze arguments, construct counter-arguments, and evaluate evidence. While short stories, poems, and one-act plays have literary merit, they are less interactive and do not inherently promote collaborative critical discussion like a debate does.

Answer

B. Short Story

Answer

C. Poem

Answer

D. One-act Play

Question 8

An allergy is:

Accepted Answer

An exaggerated immune response to a harmless substance — Allergies (hay fever, asthma, food allergy) involve hypersensitivity — typically IgE-mediated.

Answer

A normal metabolic process

Answer

Viral infection

Answer

Cell death

Question 9

Tropane alkaloids, such as atropine and hyoscyamine, are characterized by a specific nitrogenous base structure. From which amino acid are these alkaloids primarily biosynthesized?

Accepted Answer

C. Ornithine — Tropane alkaloids, including atropine and hyoscyamine, are biosynthesized primarily from the amino acid Ornithine. Tryptophan is a precursor for indole alkaloids, tyrosine for isoquinoline alkaloids, and lysine for quinolizidine alkaloids.

Answer

A. Tryptophan

Answer

B. Tyrosine

Answer

D. Lysine

Question 10

Respiration produces:‌​‍

Accepted Answer

CO₂ and water — Glucose + O₂ → CO₂ + H₂O + energy.‌​‍

Answer

Glucose

Answer

O₂

Answer

Nitrogen

DCOA Mixed Practice Test #699