Plus 2 Lecturer Mixed Practice Test #623

Question 1

Psychology is scientific study of:‌​‍

Accepted Answer

Behavior and mental processes — Modern definition. ‌​‍Wilhelm Wundt (1879, Leipzig) established first psychology laboratory — marks birth of scientific psychology.

Answer

Only emotion

Answer

Only mind

Answer

Only brain

Question 2

Typhoid is caused by:‌​‍

Accepted Answer

Salmonella typhi — Fecal-oral transmission. ‌​‍Widal test for diagnosis. Vaccine available. ‌​‍Complications: intestinal perforation.

Answer

Plasmodium

Answer

Virus

Answer

E. coli

Question 3

Allegory:‌​‍

Accepted Answer

Story with deeper symbolic/moral meaning — E.g., Pilgrim's Progress, Animal Farm. ‌​‍Extended metaphor as narrative. Fables teach lesson.

Answer

Literal

Answer

Only dialogue

Answer

Description

Question 4

While the vast majority of Kerala's rivers flow westwards into the Arabian Sea, a select few exhibit an unusual drainage pattern. Which of the following statements accurately describes the unique characteristic of the Kabani River?

Accepted Answer

C. It flows eastwards, originating in Wayanad and eventually joining the Cauvery river system in Karnataka. — The Kabani River is one of the three east-flowing rivers of Kerala (along with Bhavani and Pambar). It originates in Wayanad district and flows eastwards into Karnataka, where it joins the Cauvery River. This eastward flow is a distinct characteristic, as most other major rivers in Kerala flow westwards into the Arabian Sea. The other options describe features that are either incorrect for the Kabani or not its primary unique characteristic.

Answer

A. It is the longest river originating entirely within Kerala, flowing through three districts before reaching the sea.

Answer

B. It is the only river in Kerala whose entire basin lies within a declared wildlife sanctuary and tiger reserve.

Answer

D. Its waters are primarily utilized for large-scale hydroelectric projects, making it the highest power-generating river.

Question 5

Improved access to education and economic opportunities for women in a community often leads to smaller family sizes and better child health outcomes. This demographic shift, characterized by changes in birth and death rates over time, is an example of:

Accepted Answer

B. Demographic transition — Demographic transition is a sociological model that describes the shift from high birth and death rates to low birth and death rates as a country or region develops, often driven by factors like education, economic development, and improved healthcare. The scenario describes precisely this shift related to women's empowerment. Social disorganization refers to a breakdown of social norms, while cultural assimilation is about adopting a dominant culture. Social mobility is movement within a social hierarchy.

Answer

A. Social disorganization

Answer

C. Cultural assimilation

Answer

D. Social mobility

Question 6

Which matrix represents the identity matrix I of order 3?‌​‍

Accepted Answer

[[1,0,0],[0,1,0],[0,0,1]] — AI = IA = A for any compatible A. Inverse: A·A⁻¹ = I.‌​‍

Answer

[[0,0,0]]

Answer

[[2,0,0]]

Answer

[[1,1,1],[1,1,1],[1,1,1]]

Question 7

The minimum energy required for a reaction to occur is called:

Accepted Answer

Activation energy — Activation energy (Eₐ) is the energy barrier that must be crossed.

Answer

Ionisation energy

Answer

Bond energy

Answer

Lattice energy

Question 8

When establishing classroom rules at the beginning of the academic year, which approach is most likely to foster a sense of ownership and promote adherence among students?

Accepted Answer

B. Allowing students to collaboratively brainstorm and agree upon a few key rules. — Involving students in the creation of classroom rules fosters a sense of ownership and responsibility, making them more likely to adhere to the agreed-upon guidelines. Simply presenting a list or relying on external authority does not build this intrinsic motivation for compliance.

Answer

A. Presenting a pre-printed list of 10-15 detailed rules for students to memorize.

Answer

C. Posting rules clearly and threatening consequences for non-compliance.

Answer

D. Having the principal announce the standard school rules to all classes.

Question 9

Kerala tourist destinations — Munnar famous for:

Accepted Answer

Tea gardens, hills — Hill station tea gardens.

Answer

Beaches

Answer

Backwaters

Answer

Deserts

Question 10

In a closed organ pipe, the fundamental frequency is:‌​‍

Accepted Answer

v/(4L) — Node at closed end, antinode at open. λ = 4L. Only odd harmonics.‌​‍

Answer

v/(2L)

Answer

2v/L

Answer

v/L

Plus 2 Lecturer Mixed Practice Test #623