Algorithms & Flowcharts MCQs
Algorithms & Flowcharts MCQs Class 9
Class: 9 | Subject: Computer Science
Section: Introduction to Programming Concepts
Topic: Algorithms & Flowcharts
Based on CBSE Board Examination Pattern
Section: Introduction to Programming Concepts
Topic: Algorithms & Flowcharts
Based on CBSE Board Examination Pattern
Instructions: These Multiple Choice Questions (MCQs) are designed strictly as per the NCERT syllabus, making them ideal for CBSE Class 9 Computer Science examination standard.
1. An algorithm is:
Answer: B
An algorithm is a finite set of logical steps arranged in proper sequence to solve a problem efficiently.
An algorithm is a finite set of logical steps arranged in proper sequence to solve a problem efficiently.
2. A flowchart is:
Answer: B
A flowchart visually represents the logic of an algorithm using standard symbols and arrows.
A flowchart visually represents the logic of an algorithm using standard symbols and arrows.
3. The Start/End symbol in flowchart is:
Answer: C
The oval (terminator) symbol indicates beginning or ending of process.
The oval (terminator) symbol indicates beginning or ending of process.
4. Which symbol is used for processing?
Answer: A
Rectangle symbol represents processing steps such as calculations.
Rectangle symbol represents processing steps such as calculations.
5. Decision making is represented by:
Answer: A
Diamond is used when a condition is checked and branching occurs.
Diamond is used when a condition is checked and branching occurs.
6. Input/Output symbol is:
Answer: A
Parallelogram is used for input and output operations.
Parallelogram is used for input and output operations.
7. An algorithm must be:
Answer: A
An algorithm must have limited number of steps and must terminate.
An algorithm must have limited number of steps and must terminate.
8. Flowchart helps in:
Answer: B
Flowcharts help programmers understand and design logic clearly.
Flowcharts help programmers understand and design logic clearly.
9. The arrow in flowchart shows:
Answer: A
Arrows connect symbols and show sequence of execution.
Arrows connect symbols and show sequence of execution.
10. Writing algorithm before coding helps to:
Answer: B
Algorithm planning clarifies solution steps and reduces mistakes.
Algorithm planning clarifies solution steps and reduces mistakes.
11. A good algorithm should be:
Answer: B
Steps must be clearly defined and unambiguous.
Steps must be clearly defined and unambiguous.
12. Flowcharts are mainly used for:
Answer: B
They help solve problems logically before programming.
They help solve problems logically before programming.
13. The process symbol is used for:
Answer: B
It represents computation or data processing step.
It represents computation or data processing step.
14. Algorithms are written in:
Answer: A
Algorithms use simple language understandable by humans.
Algorithms use simple language understandable by humans.
15. Flowchart avoids:
Answer: B
By visualizing steps, logical mistakes can be reduced.
By visualizing steps, logical mistakes can be reduced.
16. The sequence of steps in algorithm must be:
Answer: B
Steps must follow logical order to solve problem correctly.
Steps must follow logical order to solve problem correctly.
17. Flowchart improves:
Answer: B
It enhances understanding of logic among programmers.
It enhances understanding of logic among programmers.
18. Algorithm ends with:
Answer: B
Every algorithm must terminate after producing output.
Every algorithm must terminate after producing output.
19. Flowcharts are helpful in:
Answer: D
They assist in design, debugging and testing processes.
They assist in design, debugging and testing processes.
20. Algorithms help to:
Answer: B
Algorithms provide structured and logical solution to problems.
Algorithms provide structured and logical solution to problems.
