List of practice Questions

An avid television viewer is statistically more likely to take sleeping pills at bedtime than a person who enjoys listening to classical music but does not watch television as a habit. Clearly, listening to classical music just before bedtime contributes to a more restful night's sleep, whereas watching television before bedtime has the opposite effect. Which of the following, if true, most seriously weakens the above argument?

Last year, seniors at Jasper County's public high schools performed worse on standardized college-entrance exams than their peers at Nesbit County's public high schools. In recent years, more and more Jasper County residents have been enrolling their children in private high schools, where the teacher-to-student ratio is traditionally lower than in public schools, and enrollment in Jasper County's public high schools has dwindled as a result. Based only on the information above, parents residing in Jasper County and concerned about their child's academic future should pursue which of the following courses of action?

The capacity of embryonic stem cells to develop into most types of human tissue, which makes them potentially valuable for medical applications, but the genetic program that underlies this quality is not yet known.

By the mid-1700s, when it began a concerted effort to prevent famine and plague, the French government had fully realized that the success of its state building projects depended on the welfare of its people.

Replete with bloody revenge, disasters (both deserved and undeserved) and agonizing moral dilemmas, the plots of tragedies also involve dramatic irony, where the audience recognizes the facts before they are recognized by the play's characters themselves.

Female sparrows and immatures are quite nondescript compared to the adult male sparrow's distinctive and conspicuous markings: a black bib, a gray cap, and white lines trailing down from the mouth.

Complete the following table of products:
 

First monomial → Second monomial ↓	2x	–5y	3x2	– 4xy	7x 2 y	–9x 2 y 2
2x	4x2	. . .	. . .	. . .	. . .	. . .
–5y	. . .	. . .	-15x2y	. . .	. . .	. . .
3x2	. . .	. . .	. . .	. . .	. . .	. . .
– 4xy	. . .	. . .	. . .	. . .	. . .	. . .
7x 2 y	. . .	. . .	. . .	. . .	. . .	. . .
–9x2 y2	. . .	. . .	. . .	. . .	. . .	. . .

(i) His thoughts when he looks into the mirror
(ii) His thoughts when the snake is coiled around his arm

Male not responding to O-2, diagnosis ARDS. What is the role of IL-8 in ARDS?

In triangle DEF shown below, points A, B and C are taken on DE, DF and EF respectively such that EC = AC and CF = BC. If angle D = 40 degress, then what is angle ACB in degrees?

Which of these statements are correct?
(i) The pader was an important person in the village in old times.
(ii) Paders still exist in Goan villages.
(iii) The paders went away with the Portuguese.
(iv) The paders continue to wear a single-piece long frock.
(v) Bread and cakes were an integral part of Goan life in the old days.
(vi) Traditional bread-baking is still a very profitable business.
(vii) Paders and their families starve in the present times.

Would you agree that promises made to poor children are rarely kept? Why do you think this happens in the incidents narrated in the text?

Current flows through uniform, square frames as shown in the figure. In which case is the magnetic field at the centre of the frame not zero?

“When a people are enslaved, as long as they hold fast to their language it is as if they had the key to their prison.”
Can you think of examples in history where a conquered people had their language taken away from them or had a language imposed on them?

The following three compound words end in -ship. What does each of them mean?

airship     flagship     lightship

Write the resonance structures for SO₃ , NO₂ and NO₃^-

What are the main features of the mechanical teachers and the schoolrooms that Margie and Tommy have in the story?

What incidents during the Everest expedition show Santosh’s concern for her team-mates?

If \( y = (\tan x)^x \), then find \( \frac{dy}{dx} \).

Two ideal gas thermometers A and B use oxygen and hydrogen respectively. The following observations are made :

Temperature	Pressure thermometer A	Pressure thermometer B
Triple-point of water	1.250 × 10\(^5\) Pa	0.200 × 10\(^5\) Pa
Normal melting point of sulphur	1.797× 10\(^5\) Pa	0.287 × 10\(^5\) Pa

1. What is the absolute temperature of normal melting point of sulphur as read by thermometers A and B?
2. What do you think is the reason behind the slight difference in answers of thermometers A and B ? (The thermometers are not faulty). What further procedure is needed in the experiment to reduce the discrepancy between the two readings?

The question is accompanied by three statements (A), (B) and (C). You have to determine which statement(s) is/are sufficient/necessary to answer the question.
Find the length of the side of a square.
A. Total cost of flooring the square is Rs.1,000 at the rate of Rs.40 per square meter.
B. A rectangle whose perimeter is 20 m is equal to the perimeter of the square.
C. A square of area equal to 50 sq. m can be made on the diagonal of the given square.