NSTSE (National Science Talent Search Exam- Unified Council) Class 7: Questions 649 - 654 of 1732

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Question number: 649

» Mathematics » Integers

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MCQ▾

Question

Negative of a negative integer is

Choices

Choice (4) Response

a.

Zero

b.

Positive

c.

Negative

d.

None of the above

Question number: 650

» Physics » Heat

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MCQ▾

Question

Which of the following keeps hot liquid hot and cold liquid cold?

Choices

Choice (4) Response

a.

Thermocouple

Figure showing thermocouple

Figure Showing Thermocouple

Figure showing thermocouple

b.

Thermos

Figure showing a thermos

Figure Showing a Thermos

Figure showing a thermos

c.

Thermostat

Figure showing a thermostat

Figure Showing a Thermostat

Figure showing a thermostat

d.

Thermometer

Figure showing a thermometer

Figure Showing a Thermometer

Figure showing a thermometer

Question number: 651

» Mathematics » Algebraic Expressions

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MCQ▾

Question

To get the value of a, ________ is to be multiplied on either side of equation (method of elimination).

Choices

Choice (4) Response

a.

b.

0

c.

1

d.

6

Question number: 652

» Mathematics » Congruence of Triangles

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MCQ▾

Question

Which of the following statement (s) is/are false?

Choices

Choice (4) Response

a.

If the hypotenuse of one right triangle is equal to the hypotenuse of another triangle, then the triangles are congruent

b.

If two sides and one angle of a triangle are equal to the corresponding two sides and the angle of another triangle, then the two triangles are congruent

c.

Two triangles having same area are congruent

d.

All a. , b. and c. are correct

Question number: 653

» Mathematics » Exponents and Powers

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MCQ▾

Question

The solution of is

Choices

Choice (4) Response

a.

b.

3

c.

6

d.

1

Question number: 654

» Mathematics » Triangle and Properties

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MCQ▾

Question

Two chimneys 18 m and 13 m high stand upright in a ground. If their feet are 12 m apart, then the distance between their tops is

Choices

Choice (4) Response

a.

18 m

b.

5 m

c.

13 m

d.

31 m

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