Plus 2 Lecturer Mixed Practice Test #86

Question 1

A hydraulic lift system uses two pistons, one with a small cross-sectional area (A1) and the other with a larger cross-sectional area (A2). If a force F1 is applied to the smaller piston, causing it to move downwards by a distance d1, how does the force exerted by the larger piston (F2) and its upward displacement (d2) relate to F1 and d1, assuming ideal conditions?

Accepted Answer

B. F2 > F1 and d2 < d1 — According to Pascal's principle, the pressure applied to the small piston (P = F1/A1) is transmitted undiminished to the larger piston. Since the larger piston has a greater area (A2 > A1), it experiences a magnified force (F2 = P * A2, hence F2 > F1). By the principle of conservation of energy, the work input must equal the work output in an ideal system (F1 * d1 = F2 * d2). Therefore, to compensate for the increased force F2, the larger piston must move a proportionally smaller distance (d2 < d1).

Answer

A. F2 = F1 and d2 = d1

Answer

C. F2 < F1 and d2 > d1

Answer

D. F2 = F1 and d2 < d1

Question 2

Phishing is:‌​‍

Accepted Answer

Fraudulent attempt to steal personal data — Phishing = fraudulent emails/websites impersonating trusted entities to steal passwords, card numbers, etc.‌​‍

Answer

A type of fishing

Answer

A programming language

Answer

A network protocol

Question 3

In 18th-century France, 'Vingtième' was:‌​‍

Accepted Answer

1/20 of income paid directly to the government — Vingtième (1749) was a direct 5% income tax; clergy and nobles escaped it.‌​‍

Answer

Rent for tools

Answer

A church tax

Answer

A bridge toll

Question 4

The maximum number of electrons in the K-shell (n=1) is:‌​‍

Accepted Answer

2 — 2n² = 2×1² = 2 electrons max in K-shell.‌​‍

Answer

1

Answer

8

Answer

18

Question 5

INS Vikrant, India's first indigenous aircraft carrier, was built at:‌​‍

Accepted Answer

Cochin Shipyard — INS Vikrant (IAC-1) was built at Cochin Shipyard Limited and commissioned in September 2022.‌​‍

Answer

Mazagon Dock Mumbai

Answer

Goa Shipyard

Answer

Garden Reach Kolkata

Question 6

Neurotransmitters are released at the:‌​‍

Accepted Answer

Synapse (synaptic cleft) — Action potential triggers vesicles to release neurotransmitters into the synaptic cleft.‌​‍

Answer

Cell body

Answer

Dendrite tip

Answer

Axon hillock

Question 7

Collective behaviour includes:‌​‍

Accepted Answer

Crowds, mobs, riots, fads, fashions, social movements — Blumer, Park — relatively unstructured, spontaneous group behaviour. ‌​‍Distinguishes from organized group behavior.

Answer

Only religion

Answer

Only politics

Answer

Individual acts

Question 8

Ayyankali's struggles for the rights of the depressed classes were marked by direct action and unwavering determination. Which of the following best illustrates his strategic approach to challenging caste oppression and securing fundamental rights for the Pulaya community in early 20th century Travancore?

Accepted Answer

B. Organizing the 'Villuvandi Samaram' (Bullock Cart Protest) to assert the right to use public roads, challenging spatial segregation. — Ayyankali's 'Villuvandi Samaram' was a strategic direct action where he publicly rode a bullock cart on roads forbidden to lower castes. This audacious act directly challenged the deeply entrenched caste oppression and spatial segregation, asserting the fundamental right of movement and access to public spaces for the Pulaya community. While Kallumala Samaram targeted oppressive caste markers and SJPS was an organizational platform, the Villuvandi Samaram was a seminal moment that directly confronted caste discrimination at a fundamental level. Demanding representation was a political strategy

Answer

A. Leading the 'Kallumala Samaram' (Stone Necklace Agitation) to protest against oppressive caste markers and demand social dignity.

Answer

C. Founding the 'Sadhu Jana Paripalana Sangham' (SJPS) to advocate for the educational and social advancement of the marginalized.

Answer

D. Demanding representation for the Pulaya community in the Sree Moolam Praja Sabha, Travancore's legislative assembly.

Question 9

The 'Cultural Capital of Kerala' is:‌​‍

Accepted Answer

Thrissur — Thrissur is known as the Cultural Capital — home of Thrissur Pooram and rich cultural heritage.‌​‍

Answer

Kochi

Answer

Kozhikode

Answer

Thiruvananthapuram

Question 10

AI Safety Summit 2023 was hosted at:‌​‍

Accepted Answer

Bletchley Park, UK — The first global AI Safety Summit was held at Bletchley Park, UK in November 2023.‌​‍

Answer

San Francisco

Answer

Brussels

Answer

Davos

Plus 2 Lecturer Mixed Practice Test #86