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

Access detailed explanations (illustrated with images and videos) to 1732 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. Subscription can be renewed yearly absolutely FREE! View Sample Explanation or View Features.

Rs. 500.00 or

How to register?

## Question number: 649

Edit
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

Edit
MCQ▾

### Question

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

### Choices

Choice (4) Response

a.

Thermocouple

b.

Thermos

c.

Thermostat

d.

Thermometer

## Question number: 651

Edit
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

Edit
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

Edit
MCQ▾

### Question

The solution of is

### Choices

Choice (4) Response

a.

b.

3

c.

6

d.

1

## Question number: 654

Edit
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

Developed by: