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Worksheets

Number system & Robotics Gr 7

Total questions: 53

Worksheet time: 23mins

Name
Class
Date
1.

THE BASE OF BINARY NUMBER SYSTEM IS ________

a)

3

b)

4

c)

2

d)

6

2.

THE BASE OF _____________ SYSTEM IS 10

a)

DECIMAL

b)

BINARY

c)

HEXA DECIMAL

d)

OCTAL

3.

OCTAL NUMBER SYSTEM CONSISTS OF ______ DIGITS

a)

9

b)

8

c)

6

d)

10

4.

________________ NUMBER SYSTEM IS UNDERSTOOD BY THE COMPUTER SYSTEM.

a)

BINARY

b)

HEXA DECIMAL

c)

DECIMAL

d)

OCTAL

5.

_________________ USES 16 SYMBOLS TO REPRESENT NUMBERS.

a)

HEXA DECIMAL

b)

OCTAL

c)

BINARY

d)

DECIMAL

6.

IN BINARY SUBTRACTION, 1-1 EQUALS

a)

0

b)

2

c)

1

d)

8

7.

___________ INTRODUCED THE CONCEPT OF ZERO

a)

ADA LOVELACE

b)

ARYABHAT

c)

BILL GATES

8.

A ________ CONVERTS THE DECIMAL FORMAT INTO ITS BINARY EQUIVALENT.

a)

DIGITAL COMPUTER

b)

CELL PHONE

c)

ABACUS

9.

___________ INVENTED THE MODERN BINARY NUMBER SYSTEM.

a)

GOTTFRIED LEIBNIZ

b)

WILLIAMS

c)

HENRY

d)

FORD

10.

THE DECIMAL NUMBER SYSTEM USES 10 DIGITS, ITS BASE IS

a)

10

b)

8

c)

2

11.

WHICH NUMBER SYSTEM IS USED BY COMPUTER FOR INTERNAL CALCULATION

a)

DECIMAL

b)

BINARY

12.

NUMBER SYSTEM WHOSE BASE IS 8

a)

DECIMAL

b)

BINARY

c)

OCTAL

13.

A NUMBER SYSTEM WHO HAS 10 SYMBOLS

(a)  

14.

WRITE THE MSD DIGIT OF THIS NUMBER 567894

(a)  

15.

BASE OF NUMBER SYSTEM INDICATES

a)

NUMBER OF SYMBOLS IN IT

b)

NUMBER OF PLACE VALUES IN IT

16.

TO CONVERT DECIMAL TO OCTAL NUMBER WE HAVE TO

a)

SUBTRACT BY 8

b)

MULTIPLY BY 8^0

c)

DIVIDE BY 8

17.

OX345 THIS NUMBER IS REPRESENTED IN

a)

OCTAL

b)

HEXA

c)

DECIMAL

18.

(87654)8 IS THIS NUMBER A VALID OCTAL NUMBER OR NOT

a)

VALID

b)

INVALID

19.

NAME WHICH NUMBER SYSTEM CONTAINS LETTERS IN IT ?

(a)  

20.

LETTER 'C' IN HEXA REPRESENTS

a)

12

b)

13

c)

11

21.

What is the number system the computer can understand?

a)

Decimal

b)

Binary

c)

Hexadecimal

d)

Octal

22.

The number system we use from our childhood is decimal number system.

a)

True

b)

False

23.

Octal number system uses digits from 0 - 8

a)

True

b)

False

24.

The base of binary number system is_____________

a)

10

b)

8

c)

2

25.

To convert decimal number into binary number, divide the number by

a)

8

b)

2

c)

10

26.

___________________introduce the concept of 0

a)

Ada lovelace

b)

Charles Babbage

c)

Aryabhat

27.

1 multiplied by 0 is equal to 0

a)

True

b)

False

28.

You cannot perform arithmetic operations on binary numbers

a)

True

b)

False

29.

In binary addition 1+1 equals to

(a)  

30.

___________ number system has 16 digits.

a)

Decimal

b)

Hexa decimal

c)

Octal

31.

Number system used in our daily life is :

a)

Binary

b)

Decimal

c)

Octal

d)

Heaxdecimal

32.

There are ........ digits in Hexadecimal number system.

a)

10

b)

11

c)

15

d)

16

33.

........... is the computer machine language.

a)

Decimal

b)

Binary

c)

Octal

d)

Hexadecimal

34.

802 is a valid Octal number??

a)

Yes

b)

No

35.

In Hexadecimal number system, 'C' stands for ......

a)

10

b)

11

c)

12

d)

13

36.

21 is a valid Binary number?

a)

Yes

b)

No

37.

The number system which uses both alphabets and numerals is.....

a)

Octal

b)

Hexadecimal

c)

Both of the above

d)

None of the above

38.

Why does Decimal number system uses 10 digits? A possible reason could be ....

a)

Just for Fun !

b)

We have 10 fingers

c)

This is a wrong question

39.

1 byte = ........ bits

a)

2

b)

4

c)

6

d)

8

40.

Base of Duo-decimal number system is?? (*Remember you saw it in the video!)

a)

10

b)

11

c)

12

d)

13

41.

What is the definition of a Robot?

a)

A machine which resembles a human being

b)

A machine capable of carrying out a complex series of actions automatically, especially one programmable by a computer.

c)

Any machine which can follow instructions

d)

A machine which can think for itself, especially if the thought processes are logical

42.

Robot comes from the Latin word “robota” which means ...

a)

Human

b)

Simple machine

c)

Automated machine

d)

Forced labor

43.

The science and technology behind the design, manufacturing and application of robots is called ____.

a)

Drivetrain

b)

Robotics

c)

Robot

d)

Microcontroller

44.

In Robotics, what is meant by an Android?

a)

A software program used to control a robot

b)

A robot with a human like appearance

c)

A type of operating system

d)

A human with a robot like appearance

45.

Which of the following is not an advantage of Robots?

a)

They can be used in dangerous environments

b)

They can assist humans with disabilities

c)

They can replace jobs 

d)

They don't get tired or require a break

46.

Devices that collect input from the environment and provide information that the CPU can respond to.

a)

Sensors

b)

Control system

c)

Drivetrain

d)

Gyroscope

47.

Which one is not a characteristic for robot

a)

Energy

b)

Intelligence

c)

Movement

d)

Talking

48.

Which characteristic differentiates between machine and robot?

a)

Intelligence

b)

Movement

c)

Sound

d)

None of the above

49.

Methods to operate the robot are ...

a)

Electrical and solar

b)

Solar and battries

c)

Electrical, solar and batteries

d)

None of the above

50.
  • A set of instructions is given to robots to perform a task is called ...

a)

Sensor

b)

Compiler

c)

Program

d)

Processor

51.
  • Software used to convert human level language into a language which is understandable by machines is called ...

a)

Compiler

b)

Sensor

c)

Program

d)

Processor

52.
  • A device that collects inputs and command outputs according to the instructions given is called ...

a)

Program

b)

Sensor

c)

Processer

d)

Compiler

53.

A type of diagram that is used in analyzing, designing, or managing a program is called ...

a)

Program

b)

Flow chart

c)

Process

d)

Picture