LDC Mixed Practice Test #198

Question 1

One word: Repetition of initial consonants:‌​‍

Accepted Answer

Alliteration — Alliteration.‌​‍

Answer

Meter

Answer

Assonance

Answer

Rhyme

Question 2

Padmanabhaswamy Temple treasure discovered:‌​‍

Accepted Answer

2011 — 2011 — estimated $20+ billion in treasure.‌​‍

Answer

2009

Answer

2013

Answer

2015

Question 3

Pipe fills 6 hrs, empty 9 hrs. Both open:

Accepted Answer

18 hrs — 1/6-1/9=1/18.

Answer

12 hrs

Answer

15 hrs

Answer

10 hrs

Question 4

Kerala forest cover %:‌​‍

Accepted Answer

28% — ~28% forest cover.‌​‍

Answer

20%

Answer

45%

Answer

35%

Question 5

Contact process produces:‌​‍

Accepted Answer

H₂SO₄ (SO₂ → SO₃ → oleum → H₂SO₄) — V₂O₅ catalyst for SO₂ + ½O₂ → SO₃. Ostwald process makes HNO₃.‌​‍

Answer

HNO₃

Answer

HCl

Answer

NH₃

Question 6

The headquarter of Kerala Sahitya Akademi transferred from Thiruvananthapuram to Thrissur in:‌​‍

Accepted Answer

1957 — HQ shifted to Thrissur in 1957.‌​‍

Answer

1961

Answer

1958

Answer

1956

Question 7

A teacher wants to introduce the concept of the solar system to a class of 6th graders. Which of the following teaching aids would be most effective for demonstrating the relative sizes and orbital paths of planets in a dynamic and interactive manner?

Accepted Answer

D. An interactive simulation software or virtual reality (VR) application. — Interactive simulations or VR applications allow students to dynamically explore, manipulate, and visualize complex concepts like planetary orbits and relative sizes, offering a hands-on, immersive learning experience that static charts or videos cannot fully provide. While an orrery is a good physical model, digital simulations often offer greater flexibility for scaling and interaction and are highly interactive.

Answer

A. A static chart displaying planets.

Answer

B. A physical model (orrery).

Answer

C. A documentary video on space.

Question 8

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 9

'Congratulations ___ your success':‌​‍

Accepted Answer

on — Congratulations on.‌​‍

Answer

about

Answer

for

Answer

at

Question 10

The Paliyam Satyagraha (1947-48) took place at Chennamangalam in:‌​‍

Accepted Answer

Kochi — Paliyam Satyagraha under C. ‌​‍Kesavan opposed Paliath Achan's residence ban on lower-caste walk-by access.

Answer

Travancore

Answer

Malabar

Answer

Wayanad

LDC Mixed Practice Test #198