# NSTSE (National Science Talent Search Exam- Unified Council) Class 7: Questions 724 - 732 of 1732

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## Question 724

MCQ▾

________.

### Choices

Choice (4)Response

a.

b.

c.

d.

All of the above

## Question 725

MCQ▾

The value of is

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 726

### Question

MCQ▾

Why sand is used as a fire extinguisher to prevent small fires?

### Choices

Choice (4)Response

a.

Because sand is cheap.

b.

Because sand cover up all oxygen from the fire.

c.

Because sand is easily available

d.

All a., b. and c. are correct

## Question 727

### Question

MCQ▾

If then the value of is

### Choices

Choice (4)Response

a.

0.27

b.

4.41

c.

2.78

d.

5.73

## Question 728

### Question

MCQ▾

Which of the following alphabets has only horizontal line of symmetry?

### Choices

Choice (4)Response

a.

A

b.

M

c.

D

d.

Y

## Question 729

MCQ▾

The value of is

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 730

### Question

MCQ▾

Number to be added on LHS of equation to find the value of ‘y’ is (elimination method) .

### Choices

Choice (4)Response

a.

- 7

b.

0

c.

- 9

d.

16

## Question 731

### Question

MCQ▾

If ABCD is a parallelogram, then the ratio of the areas of parallelogram ABCD and is

### Choices

Choice (4)Response

a.

Cannot be determined

b.

1: 2

c.

2: 1

d.

Question does not provide sufficient data or is vague

## Question 732

### Question

MCQ▾

Which of the following is bad conductor of heat?

### Choices

Choice (4)Response

a.

Gold

b.

Mercury

c.

Glass

d.

Silver

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