Plus 2 Lecturer Mixed Practice Test #580

Question 1

Rotation matrix by angle θ:‌​‍

Accepted Answer

[[cos,-sin],[sin,cos]] — Counter-clockwise rotation. ‌​‍Product of two rotations is a rotation by sum of angles.

Answer

Zero matrix

Answer

[[sin,cos],[-cos,sin]]

Answer

Identity

Question 2

Participant observation means:‌​‍

Accepted Answer

Researcher participates in the community while observing — Malinowski's 'Argonauts of the Western Pacific' (1922) established participant observation in Trobriand Islands study.‌​‍

Answer

Observer-only

Answer

Experiments

Answer

Interviews only

Question 3

Synonym of SPARSE:‌​‍

Accepted Answer

Scanty — Thinly scattered.‌​‍

Answer

Dense

Answer

Thick

Answer

Full

Question 4

The portal started by Government of Kerala to get services and proceedings of Grama Panchayat:‌​‍

Accepted Answer

Citizen Portal — Kerala's LSG Citizen Portal offers panchayat services online.‌​‍

Answer

E-office portal

Answer

Friends

Answer

Sampoorna Portal

Question 5

A 15-year-old student is actively involved in school debates, often discussing abstract concepts like justice, freedom, and ethical dilemmas. This ability to think systematically about hypothetical situations and abstract ideas is characteristic of which stage of cognitive development according to Piaget?

Accepted Answer

D. Formal operational stage — The formal operational stage, typically beginning around age 11-12 and extending through adulthood, is characterized by the ability to think abstractly, engage in hypothetical-deductive reasoning, and consider multiple perspectives on complex issues. The other stages precede this and involve more concrete forms of thinking.

Answer

A. Sensorimotor stage

Answer

B. Preoperational stage

Answer

C. Concrete operational stage

Question 6

Alliteration:‌​‍

Accepted Answer

Repetition of initial consonant sounds — E.g., 'Peter Piper picked'. ‌​‍Assonance: repetition of vowel sounds. Consonance: consonant sounds in middle/end.

Answer

Rhyme

Answer

Assonance

Answer

Onomatopoeia

Question 7

Joule's law of heating states heat produced is proportional to:‌​‍

Accepted Answer

I²RT — H = I²Rt (Joules); heat dissipated in a resistor.‌​‍

Answer

V²/R

Answer

Voltage × resistance

Answer

Current × Time

Question 8

The exam ___ at 10 AM tomorrow.‌​‍

Accepted Answer

starts — Scheduled future events use Simple Present: 'The exam starts at 10 AM.'‌​‍

Answer

started

Answer

will start

Answer

has started

Question 9

The largest bone in the human body is the:

Accepted Answer

Femur — Femur (thigh bone) is the longest and strongest bone.

Answer

Humerus

Answer

Tibia

Answer

Vertebra

Question 10

Which preposition: 'She is married ___ a doctor.'

Accepted Answer

to — 'Married to' someone.

Answer

with

Answer

in

Answer

on

Plus 2 Lecturer Mixed Practice Test #580