Plus 2 Lecturer Mixed Practice Test #745

Question 1

The periodic table was created by:‌​‍

Accepted Answer

Mendeleev — Dmitri Mendeleev created the periodic table in 1869, arranging elements by atomic weight.‌​‍

Answer

Dalton

Answer

Bohr

Answer

Rutherford

Question 2

A journal named 'Deepika' was started by:

Accepted Answer

Fr. Heras — Nasrani Deepika (1887, oldest Malayalam newspaper) was started by Catholic priests at Mannanam — founder credited variously, including Fr. Nidhirickal Mani Kathanar.

Answer

Vakkom Maulavi

Answer

Chattampi Swamikal

Answer

Mother Teresa

Question 3

NTA (National Testing Agency):‌​‍

Accepted Answer

2017 — Established 2017.‌​‍

Answer

2018

Answer

2020

Answer

2019

Question 4

Synonym of REFUTE:

Accepted Answer

Disprove — Prove wrong.

Answer

Accept

Answer

Agree

Answer

Confirm

Question 5

Isoelectronic species have:

Accepted Answer

Same number of electrons — e.g., Na⁺, Mg²⁺, O²⁻, F⁻, Ne all have 10 e⁻. Sizes differ with nuclear charge.

Answer

Same mass

Answer

Same neutrons

Answer

Same protons only

Question 6

A shopkeeper buys an article for ₹800 and sells for ₹920. Profit percentage is:

Accepted Answer

15% — Profit = 120; % = 120/800 × 100 = 15%.

Answer

10%

Answer

12%

Answer

20%

Question 7

Chromosome number in humans:‌​‍

Accepted Answer

46 — 46 (23 pairs). 22 autosome pairs + 1 sex pair.‌​‍

Answer

48

Answer

23

Answer

44

Question 8

A redox reaction always involves:‌​‍

Accepted Answer

Both oxidation and reduction occurring together — Electrons lost by one species are gained by another — simultaneous process.‌​‍

Answer

Neither

Answer

Reduction only

Answer

Oxidation only

Question 9

Pulluvan Paattu:

Accepted Answer

Serpent worship songs — Serpent songs.

Answer

Royal

Answer

Religious

Answer

Folk

Question 10

In a classroom utilizing the 5E instructional model, particularly during the 'Explore' and 'Elaborate' phases, what is the most appropriate role for the teacher?

Accepted Answer

B. Acting as a facilitator, guiding student inquiry, and posing probing questions. — In constructivist models like 5E, the teacher shifts from a lecturer to a facilitator. During 'Explore' and 'Elaborate', the teacher's role is to guide students as they investigate and apply concepts, encouraging independent thinking and problem-solving through questions rather than providing direct answers. Options A, C, and D represent more traditional, teacher-centered roles.

Answer

A. Delivering explicit instructions and correct answers.

Answer

C. Primarily evaluating student performance through summative assessments.

Answer

D. Maintaining strict control over all student activities to ensure conformity.

Plus 2 Lecturer Mixed Practice Test #745