LDC Mixed Practice Test #497

Question 1

A newborn baby receives antibodies from its mother through the placenta and breast milk. This type of immunity provides immediate, but temporary, protection against various infections. What is this specific type of immunity called?

Accepted Answer

B. Passive natural immunity — Passive natural immunity occurs when antibodies are transferred naturally from one individual to another, such as from mother to child via the placenta (IgG) and breast milk (IgA). It provides immediate protection but is temporary as the recipient's immune system is not actively producing its own antibodies.

Answer

A. Active natural immunity

Answer

C. Active artificial immunity

Answer

D. Passive artificial immunity

Question 2

Rubber producer top:‌​‍

Accepted Answer

Kerala — Kerala — 90%+.‌​‍

Answer

AP

Answer

Tripura

Answer

Karnataka

Question 3

In a microteaching session, a trainee teacher is asked to demonstrate the skill of 'closing'. Which of the following actions best exemplifies this skill?

Accepted Answer

A. Summarizing the key points of the lesson — The correct answer is A. Summarizing the key points of the lesson. Closing a lesson effectively involves reinforcing the main concepts covered, which is best achieved by summarizing key points (A). Introducing a new topic (B) is more suitable for the opening of a lesson, distributing homework (C) is an administrative task, and asking for personal experiences (D) may be engaging but does not directly support lesson closure.

Answer

B. Introducing a new topic for the next session

Answer

C. Distributing homework assignments

Answer

D. Asking students to share their personal experiences

Question 4

1 + tan²θ =

Accepted Answer

sec²θ — Another Pythagorean identity: 1 + tan²θ = sec²θ.

Answer

sin²θ

Answer

cos²θ

Answer

cosec²θ

Question 5

'Three Men in a Boat', in which the narrator imagines having every disease in a medical encyclopaedia, was written by:

Accepted Answer

Jerome K. Jerome — Jerome K. Jerome's comic novel (1889) includes the famous hypochondriac scene in the British Museum library.

Answer

Mark Twain

Answer

R. L. Stevenson

Answer

Oscar Wilde

Question 6

Number of vertices in a cube is:

Accepted Answer

8 — Cube has 8 vertices, 12 edges, 6 faces.

Answer

4

Answer

6

Answer

12

Question 7

If x − y = 2 and xy = 15, then x³ − y³ is:

Accepted Answer

98 — x³ − y³ = (x−y)³ + 3xy(x−y) = 8 + 3×15×2 = 8 + 90 = 98.

Answer

125

Answer

82

Answer

220

Question 8

Correctly spelled word:‌​‍

Accepted Answer

Accommodate — Accommodate (double c, double m) — correct spelling.‌​‍

Answer

Ocassion

Answer

Recieve

Answer

Definately

Question 9

Odd one out: January, March, April, July

Accepted Answer

April — April has 30 days; rest have 31 days.

Answer

January

Answer

March

Answer

July

Question 10

Which of the following rivers is NOT a tributary of the Bharathapuzha river system in Kerala?

Accepted Answer

D. Periyar — The Bharathapuzha river system is formed by the confluence of several tributaries, including Kalpathipuzha, Gayathripuzha, and Chulliyar. The Periyar river, however, is an independent river system flowing in central Kerala and does not join the Bharathapuzha. Distractor 'A' is a major tributary, 'B' is a significant left-bank tributary, and 'C' is a right-bank tributary.

Answer

A. Kalpathipuzha

Answer

B. Gayathripuzha

Answer

C. Chulliyar

LDC Mixed Practice Test #497