DCOA Mixed Practice Test #472

Question 1

The study of fungi is called:‌​‍

Accepted Answer

Mycology — Mycology = study of fungi. Virology = viruses. Ecology = ecosystems.‌​‍

Answer

Ecology

Answer

Virology

Answer

Botany

Question 2

Which is NOT a web browser?‌​‍

Accepted Answer

Oracle — Oracle is a database company, not a browser. ‌​‍Chrome, Firefox, Edge are web browsers.

Answer

Chrome

Answer

Firefox

Answer

Edge

Question 3

Kerala Blasters home stadium:

Accepted Answer

Jawaharlal Nehru Stadium Kochi — JLN Stadium Kaloor.

Answer

Trivandrum

Answer

Kozhikode

Answer

Thrissur

Question 4

A car engine exerts a force of 5000 N to move the car at a constant velocity of 20 m/s. What is the power output of the engine?

Accepted Answer

A. 25 kW — Power is calculated as force multiplied by velocity (P = F × v). Here, P = 5000 N × 20 m/s = 100,000 W or 100 kW. The correct answer is 100 kW, while the other options either underestimate or overestimate the power. The engine's power output balances the resistive forces to maintain constant velocity.

Answer

B. 100 kW

Answer

C. 250 kW

Answer

D. 500 kW

Question 5

During a science class, a teacher circulates among student groups, providing immediate verbal feedback on their experimental designs. Based on common errors observed, she decides to re-explain a critical concept the following day. This approach primarily exemplifies which type of assessment?

Accepted Answer

C. Formative Assessment — Formative assessment focuses on monitoring student learning during instruction to provide ongoing feedback, allowing teachers to adjust teaching and students to improve learning. The immediate feedback and adjustment of future lessons are hallmarks of formative assessment, whereas summative assessment measures learning at the end, diagnostic identifies prior knowledge gaps, and placement determines appropriate course levels.

Answer

A. Summative Assessment

Answer

B. Diagnostic Assessment

Answer

D. Placement Assessment

Question 6

UDF full form:‌​‍

Accepted Answer

United Democratic Front — United Democratic Front.‌​‍

Answer

Unified Defence Forum

Answer

Union DF

Answer

Untied Dem F

Question 7

Schizophrenia symptoms:‌​‍

Accepted Answer

Positive (hallucinations, delusions) and Negative (flat affect, social withdrawal) — ~1% prevalence. ‌​‍Dopamine hypothesis. Antipsychotic drugs (risperidone, clozapine). ‌​‍Often chronic.

Answer

Only anxiety

Answer

Only memory

Answer

Only sadness

Question 8

KSRTC founded:‌​‍

Accepted Answer

1965 — 1965.‌​‍

Answer

1980

Answer

1970

Answer

1958

Question 9

Kerala's mobile penetration:‌​‍

Accepted Answer

Near 100% — High mobile and internet penetration.‌​‍

Answer

50%

Answer

Unknown

Answer

Low

Question 10

In Python, the len() function returns:

Accepted Answer

Length/number of elements — len(obj) gives the number of items in a sequence/collection.

Answer

Last element

Answer

Sum

Answer

First element

DCOA Mixed Practice Test #472