DCOA Mixed Practice Test #369

Question 1

Kirchhoff's voltage law states that the sum of voltages around a closed loop is:‌​‍

Accepted Answer

Zero — KVL: conservation of energy around a closed circuit loop.‌​‍

Answer

Always positive

Answer

Infinity

Answer

Equal to EMF

Question 2

OSI reference model layers:‌​‍

Accepted Answer

7 — Physical, Data link, Network, Transport, Session, Presentation, Application — ISO standard. ‌​‍TCP/IP model has 4 (Network Access, Internet, Transport, Application). Most used in practice.

Answer

4

Answer

5

Answer

3

Question 3

The process by which kidneys clean blood using an artificial membrane is:‌​‍

Accepted Answer

Dialysis — Haemodialysis removes wastes when kidneys fail.‌​‍

Answer

Diffusion

Answer

Active transport

Answer

Osmosis

Question 4

Which action by a teacher would be LEAST consistent with a constructivist approach to teaching?

Accepted Answer

D. Delivering a lecture that requires students to passively listen and take detailed notes on new information. — A constructivist approach emphasizes active learning, student inquiry, and knowledge construction, where students are not passive recipients. Delivering a lecture that requires passive listening is a traditional, transmission-based model, which is least consistent with constructivism. Options A, B, and C all promote active engagement, critical thinking, and collaborative learning, which are central to constructivism.

Answer

A. Encouraging students to debate different interpretations of a historical event.

Answer

B. Providing open-ended projects that allow students to explore topics of interest.

Answer

C. Setting up collaborative group tasks for students to solve complex problems.

Question 5

Which of the following best describes the core principle of NCF 2005 regarding learning?

Accepted Answer

B. Constructing knowledge through activity-based learning — NCF 2005 emphasizes constructing knowledge through activity-based learning, promoting a child-centered approach. Rote learning (A) and teacher-centered instruction (C) contradict this principle, while standardized testing (D) is not its primary focus.

Answer

A. Rote learning and memorization

Answer

C. Teacher-centered instruction

Answer

D. Standardized testing as the primary assessment method

Question 6

India smartphone market:‌​‍

Accepted Answer

Samsung/Xiaomi/Vivo — Multiple brands.‌​‍

Answer

BlackBerry

Answer

Nokia

Answer

Apple dominant

Question 7

Silent Valley National Park is located in which district?‌​‍

Accepted Answer

Palakkad — Silent Valley National Park is in Palakkad district. ‌​‍It is one of the last undisturbed tropical evergreen forests in India and is home to the Lion-tailed Macaque.

Answer

Wayanad

Answer

Idukki

Answer

Thrissur

Question 8

India's national game is:‌​‍

Accepted Answer

Hockey — Hockey is traditionally considered India's national game, though no official gazette notification exists.‌​‍

Answer

Cricket

Answer

Football

Answer

Kabaddi

Question 9

Study of viruses:‌​‍

Accepted Answer

Virology — Virology.‌​‍

Answer

Parasitology

Answer

Bacteriology

Answer

Mycology

Question 10

Athirappilly Falls is on:‌​‍

Accepted Answer

Chalakudy River — Athirappilly Falls on Chalakudy River, Thrissur district.‌​‍

Answer

Bharathapuzha

Answer

Periyar

Answer

Pamba

DCOA Mixed Practice Test #369