DCOA Mixed Practice Test #153

Question 1

Which phenomenon of light causes a rainbow?

Accepted Answer

Scattering — Rainbows form by refraction + dispersion + internal reflection, which is generally categorised under scattering/dispersion (closest option).

Answer

Diffraction

Answer

Reflection

Answer

Radiation

Question 2

Abel Prize is for:‌​‍

Accepted Answer

Mathematics — Abel Prize = prestigious mathematics award (Norwegian). ‌​‍Fields Medal also for maths.

Answer

Physics

Answer

Literature

Answer

Peace

Question 3

Eczema:‌​‍

Accepted Answer

Skin inflammation — Inflammatory skin disease.‌​‍

Answer

Blood

Answer

Stomach

Answer

Brain

Question 4

Rapid urbanization in Kerala has led to significant social changes. From a community health standpoint, which of the following is a direct and commonly observed health challenge associated with this sociological phenomenon?

Accepted Answer

C. A rise in non-communicable diseases (NCDs) and lifestyle disorders among the urban population. — Rapid urbanization often leads to significant shifts in lifestyle, including more sedentary habits, dietary changes, increased stress, and environmental pollution. These factors commonly contribute to a rise in non-communicable diseases like diabetes, hypertension, and cardiovascular issues. While sanitation might improve, the overall context often shifts disease burden. Access to traditional healthcare may decrease, and joint family systems often weaken in urban settings.

Answer

A. Increased prevalence of communicable diseases due to improved sanitation infrastructure.

Answer

B. Enhanced and equitable access to traditional healthcare systems for all residents.

Answer

D. Strengthening of joint family systems and informal social support networks.

Question 5

Under the 'Sarva Shiksha Abhiyan' (SSA) in Kerala, which intervention specifically targets the enrollment and retention of girls from marginalized communities in government schools?

Accepted Answer

C. 'Kanya' Scholarships — Gender Sensitization Programmes under SSA Kerala focus on creating awareness and addressing barriers to girls' education, including social norms and stereotypes, to improve enrollment and retention in schools. Kuttikootam is a daycare initiative, 'Kanya' Scholarships are merit-based, and 'Sankalpam' is a general quality improvement program, not specifically for girls.

Answer

A. Kuttikootam

Answer

B. Gender Sensitization Programmes

Answer

D. 'Sankalpam' for Girls

Question 6

The IUPAC name of HCHO is:‌​‍

Accepted Answer

Methanal — Methanal (formaldehyde) HCHO — simplest aldehyde.‌​‍

Answer

Ethanal

Answer

Methanol

Answer

Formic acid

Question 7

Kerala's first Lok Sabha election:

Accepted Answer

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

Answer

1957

Answer

1962

Answer

1967

Question 8

Which social reformer started the movement called 'Sadhujana Paripalana Sangam'?

Accepted Answer

Ayyankali — Ayyankali founded SJPS in 1907.

Answer

Sahodaran Ayyappan

Answer

Sree Narayana Guru

Answer

E.K. Janaki Amma

Question 9

Which of the following correctly lists the five generations of computers?‌​‍

Accepted Answer

1st (vacuum tubes), 2nd (transistors), 3rd (ICs), 4th (microprocessors), 5th (AI) — 1940s onwards. ‌​‍ENIAC (1946) 1st gen. Modern PCs — 4th gen. ‌​‍5th gen AI and parallel processing in progress.

Answer

Ten

Answer

Three

Answer

Four

Question 10

Which statement is NOT correct? ‌​‍(1) Reign of Terror — French Revolution (2) Bloody Sunday — American Revolution (3) Glorious Revolution in England in 1688 (4) Nationalist Revolution in China in 1949

Accepted Answer

Only (2, 4) — Bloody Sunday (1905) was Russian, not American. ‌​‍China's Nationalist Revolution was 1911 (Xinhai); 1949 was the Communist victory.

Answer

All incorrect

Answer

Only (3)

Answer

Only (1, 3)

DCOA Mixed Practice Test #153