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science day 2022

Total questions: 25

Worksheet time: 8mins

Name
Class
Date
1.

Which among the following is the correct order in which popular company Apple released them?

a)

Mac, iPod, iPad, iPhone

b)

Mac, iPhone, iPod, iPad

c)

Mac, iPod, iPhone, iPad

d)

Mac, iPad, ipod, iPhone

2.

Ctrl, Shift and Alt are called .......... keys.

a)

modifier

b)

function

c)

alphanumeric

d)

adjustment

3.

Computer Moniter is also known as :

a)

DVU

b)

UVD

c)

VDU

d)

CCTV

4.

Which of the following is the main circuit-board of the system unit?

a)

Control unit

b)

Sound board

c)

Motherboard

d)

Graphics board

5.

When is Pi Day celebrated around the world?

a)

March 14

b)

March 15

c)

March 13

d)

May 14

6.

Who discovered the Symbol Infinity “∞”?

a)

Pythagoras of Samos

b)

Aryabhatta

c)

Albert Einstein

d)

John Wallis

7.

First person to use the Greek letter pi (π) to denote the constant?

a)

John Napier

b)

William Jones

c)

William Oughtred

d)

Robert Recorde

8.

Where was Abacus invented?

a)

China

b)

India

c)

USA

d)

UK

9.

Which one of the following is used as a moderator in nuclear reactor

a)

radium

b)

graphite

c)

thorium

d)

ordinary water

10.

Which one of the following is the unit of activity of a radioactive source?

a)

Siemens

b)

Lux

c)

Tesla

d)

Becquerrel

11.

Who was the inventor of Radar?

a)

Austin

b)

Bush Wall

c)

Fleming

d)

Robert Watson

12.

Solar radiation is measured by

a)

Astrometer

b)

Barometer

c)

Pyrometer

d)

Manometer

13.

A watt meter can be connected to a high current circuit by using

a)

Eddy current transformer

b)

Potential transformer

c)

Current transformer

d)

Shunt

14.

Friction losses are more in the following type of instrument

a)

Dynamometer type

b)

Moving coil type

c)

Moving iron type

d)

Null balance type

15.

Which of the following indicators is suitable only for direct current?

a)

Permanent magnet

b)

Electro-dynamic

c)

Moving iron

d)

Hot wire

16.

The need for inferential statistical methods derives from the need for __.

a)

Population

b)

Association

c)

Sampling

d)

Probability

17.

In statistics, _______________ classification includes data according to the

time period in which the items under consideration occurred.

a)

Chronological

b)

Alphabetical

c)

Geographical

d)

Topological

18.

Both the sampling as well as the non-sampling errors must be reduced to a minimum in order

to get as representative a sample of the _______ as possible.

a)

Group

b)

Region

c)

Population

d)

Universe

19.

If the radius of blood vessels of a person decreases his/her blood pressure will

a)

Decrease

b)

Increase

c)

Remain Same

d)

Becomes zero

20.

Which fungus is known as 'Green Mold' ?

a)

Aspergillus

b)

Saccharomyces

c)

Mucus

d)

Penicillium

21.

What is the rank of India in the 2022 International Intellectual property (IP) Index?

a)

41

b)

42

c)

43

d)

44

22.

Indian Women’s Hockey Team won which position in the Asia Cup 2022?

a)

First

b)

Second

c)

Third

d)

Fourth

23.

Which country re-launched the “Cancer Moonshot” program?

a)

China

b)

USA

c)

Russia

d)

UK

24.

Which Union Ministry is implementing ‘Gram Ujala programme’?

a)

Ministry of Power

b)

Ministry of Rural Development

c)

Ministry of Agriculture and Farmers Welfare

d)

Ministry of Environment, Forest and Climate Change

25.

Which of the following led to the creation of the Soviet Union from the Russian Empire?

a)

The Russian Revolution of 1917

b)

The Bolshevik Party

c)

Both A and B

d)

Neither A nor B