DCOA Mixed Practice Test #436

Question 1

Largest rainforest:‌​‍

Accepted Answer

Amazon — Amazon Basin — 5.5 million sq km.‌​‍

Answer

Daintree

Answer

Congo

Answer

Valdivian

Question 2

Penicillin discovered by:

Accepted Answer

Fleming — Alexander Fleming (1928).

Answer

Pasteur

Answer

Koch

Answer

Jenner

Question 3

When was VVPAT first introduced?‌​‍

Accepted Answer

2013 — Paper trail introduced 2013.‌​‍

Answer

2010

Answer

2019

Answer

2017

Question 4

First fully literate district in India:‌​‍

Accepted Answer

Ernakulam — Ernakulam was declared first fully literate district in 1990.‌​‍

Answer

Kottayam

Answer

Thiruvananthapuram

Answer

Palakkad

Question 5

A high school science teacher wants to improve student engagement in practical lab sessions. He decides to implement an action research cycle. Which of the following sequences correctly represents the typical steps he would follow?

Accepted Answer

B. Planning an intervention, Acting on the plan, Observing the results, Reflecting on the process and outcomes. — The action research cycle typically follows a 'Plan-Act-Observe-Reflect' sequence. The teacher first plans an intervention based on an identified problem, then implements (acts on) it, carefully observes the effects, and finally reflects on the outcomes to inform the next cycle of improvement.

Answer

A. Observing student behavior, Planning new activities, Reflecting on outcomes, Acting on the plan.

Answer

C. Reflecting on past lessons, Observing student reactions, Planning a new strategy, Acting without further evaluation.

Answer

D. Acting on a hypothesis, Planning further research, Observing external factors, Reflecting on theoretical implications.

Question 6

Terminal velocity of a sphere falling through viscous fluid is proportional to:

Accepted Answer

r² — v_t = (2/9) × r² (ρ_s - ρ_f) g/η. Bigger drops fall faster.

Answer

r

Answer

r³

Answer

1/r

Question 7

Kerala's first female IAS officer:

Accepted Answer

Anna Rajam Malhotra — Anna Rajam Malhotra — first IAS woman from Kerala.

Answer

Padmaja Venugopal

Answer

Sheela Thomas

Answer

Renuka Sudhakar

Question 8

A teacher wants to continuously assess her students' problem-solving skills and critical thinking during a project-based learning activity. Which of the following tools would be most effective for this purpose?

Accepted Answer

C. An observation schedule and a rubric for evaluating project work and presentations. — An observation schedule coupled with a rubric allows for continuous assessment of process skills like problem-solving and critical thinking as students engage in project work and presentations. Standardized tests, final examinations, and surprise quizzes are more suited for measuring content knowledge at specific points rather than ongoing process-oriented skills.

Answer

A. A standardized multiple-choice test at the end of the unit.

Answer

B. A traditional pen-and-paper final examination.

Answer

D. A surprise quiz covering theoretical concepts.

Question 9

Solar cell converts:‌​‍

Accepted Answer

Light to electricity — Photovoltaic effect.‌​‍

Answer

Wind to electricity

Answer

Sound to electricity

Answer

Heat to electricity

Question 10

A newborn baby at 1 minute of life has a heart rate of 98 bpm, a weak cry, some flexion of extremities, a pink body with blue extremities, and responds with a grimace to stimulation. What is the APGAR score for this infant?

Accepted Answer

A. 5 — The APGAR score is calculated based on five parameters. For this infant: Appearance (pink body, blue extremities/acrocyanosis) = 1 point; Pulse (HR 98 bpm) = 1 point; Grimace (grimace to stimulation) = 1 point; Activity (some flexion of extremities) = 1 point; Respiration (weak cry) = 1 point. Summing these points gives a total APGAR score of 5.

Answer

B. 6

Answer

C. 7

Answer

D. 8

DCOA Mixed Practice Test #436