Plus 2 Lecturer Mixed Practice Test #564

Question 1

Sun's surface temperature:‌​‍

Accepted Answer

5,500°C — ~5,500°C (5778 K).‌​‍

Answer

1,000°C

Answer

100,000°C

Answer

10,000°C

Question 2

Chain reaction in U-235 occurs because each fission produces:

Accepted Answer

~2-3 neutrons (some cause further fissions) — Critical mass needed to sustain chain. Moderator slows neutrons to increase fission probability.

Answer

0 neutrons

Answer

1 neutron

Answer

10 neutrons

Question 3

The primary function of red blood cells (erythrocytes) in the human body is to:

Accepted Answer

C. Transport oxygen — Red blood cells contain hemoglobin, a protein that binds to oxygen in the lungs and transports it to tissues throughout the body. White blood cells fight infections, platelets are involved in blood clotting, and plasma cells (a type of B lymphocyte) produce antibodies.

Answer

A. Fight infections

Answer

B. Clot blood

Answer

D. Produce antibodies

Question 4

Synonym of EXACERBATE:‌​‍

Accepted Answer

Worsen — Make worse.‌​‍

Answer

Improve

Answer

Calm

Answer

Resolve

Question 5

Identify the antonym of 'ancient':‌​‍

Accepted Answer

Modern — Ancient ↔ modern.‌​‍

Answer

Archaic

Answer

Old

Answer

Primitive

Question 6

The direction of magnetic field around a straight current-carrying wire is given by:‌​‍

Accepted Answer

Right-hand thumb rule — Thumb in direction of current; curled fingers show magnetic field direction.‌​‍

Answer

Fleming's left-hand rule

Answer

Fleming's right-hand rule

Answer

Lenz's law

Question 7

Cochin capital was:‌​‍

Accepted Answer

Thrissur — Thrissur was Cochin's capital.‌​‍

Answer

Kochi

Answer

Ernakulam

Answer

Mattancherry

Question 8

Which Veda contains magic spells?‌​‍

Accepted Answer

Radio waves — Radio waves (km to mm) have longest wavelengths in the EM spectrum.‌​‍

Answer

Gamma

Answer

X-ray

Answer

Visible

Question 9

A teacher, as part of an action research project, introduces a new peer-tutoring system to improve student comprehension in science. After implementing this system for two weeks, what should be the *teacher's most critical next step* in the action research cycle?

Accepted Answer

C. Systematically collecting data on student comprehension and engagement with the new peer-tutoring system. — Following the 'Act' phase (implementing the new system), the most critical next step is the 'Observe' phase. This involves systematically collecting data to determine the impact and effectiveness of the intervention. Drawing conclusions or abandoning the research without data collection would undermine the research process. Sharing findings comes much later, after analysis, reflection, and potential refinement.

Answer

A. Immediately concluding that the system is effective and making it a permanent fixture.

Answer

B. Moving on to research another classroom problem, assuming the first one is resolved.

Answer

D. Presenting the new system at a school-wide faculty meeting to encourage adoption.

Question 10

FIFA 2026 World Cup will be hosted by:‌​‍

Accepted Answer

USA, Canada, Mexico — The FIFA 2026 World Cup will be hosted jointly by USA, Canada, and Mexico — the first tri-hosted World Cup in history.‌​‍

Answer

Qatar

Answer

India

Answer

China

Plus 2 Lecturer Mixed Practice Test #564