Algorithm And Flowchart Quiz

Reviewed by Godwin Iheuwa
Godwin Iheuwa, MS (Computer Science) |
Database Administrator
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Godwin Iheuwa, a Database Administrator at MTN Nigeria, holds an MS in Computer Science, specializing in Agile Methodologies and Database Administration from the University of Bedfordshire and a Bachelor's in Computer Science from the University of Port Harcourt. His proficiency in SQL Server Integration Services (SSIS) and SQL Server Management Studio contributes to his expertise in database management.
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  • 1/10 Questions

    What is an algorithm?

    • A flowchart.
    • Step-by-step instructions that are used to solve a problem.
    • A flowchart or pseudocode.
    • A decision.
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About This Quiz


This is a basic quiz on algorithms and flowcharts. There are different ways of designing the system creation to implementation steps, and the setting algorithm is the most common. You can check your knowledge of algorithms and flowcharts with this quiz. Play and get a perfect score.

Algorithm And Flowchart Quiz - Quiz

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  • 2. 

    A flowchart is a pictorial representation of an algorithm.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    A flowchart uses diagrams to visually represent the steps involved in a process or algorithm. It employs various symbols to denote different actions, decisions, and flow of control, making it easier to understand the logic and sequence of operations. Flowcharts are often used as a planning tool before writing code and for documentation purposes.

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  • 3. 
    In a flowchart, a calculation (process) is represented by - ProProfs

    In a flowchart, a calculation (process) is represented by

    • A rectangle

    • A rhombus

    • A parallelogram

    • A circle

    Correct Answer
    A. A rectangle
    Explanation
    A calculation or process is represented by a rectangle in a flowchart. This is because a rectangle is commonly used to symbolize a specific action or operation that needs to be performed within the flowchart. It indicates that some form of calculation or manipulation of data is taking place at that point in the flowchart.

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  • 4. 

    In a flowchart, which symbol is used to represent a decision point, where the flow can branch based on a condition?

    • Oval

    • Rectangle

    • Diamond

    • Parallelogram

    Correct Answer
    A. Diamond
    Explanation
    In a flowchart, the diamond symbol is used to represent a decision point. This is where the process can branch into different paths based on a condition, such as a "Yes" or "No" question. The other symbols have different meanings: the oval represents the start or end of the process, the rectangle is used for general process steps or actions, and the parallelogram typically indicates input or output operations. Decision points are crucial for showing conditional logic in a flowchart.

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  • 5. 
    In a flowchart, an input or output instruction is represented by - ProProfs

    In a flowchart, an input or output instruction is represented by

    • A rectangle

    • A rhombus

    • A parallelogram

    • A circle

    Correct Answer
    A. A parallelogram
    Explanation
    In a flowchart, an input or output instruction is represented by a parallelogram. This shape is commonly used to indicate the flow of data into or out of a program. The parallelogram symbolizes the interaction between the program and the user or external devices, such as receiving input from the user or displaying output to the user. It serves as a visual representation of the input/output process in the flowchart, making it clear and easily understandable.

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  • 6. 
    A flowchart needs to represent a situation where for each mark a student is awarded 'Pass' or 'Fail'...the system will consider the mark, and if it's 50 or over, award 'Pass,' else it awards 'Fail.' This is an example of which of the algorithm constructs? - ProProfs

    A flowchart needs to represent a situation where for each mark a student is awarded 'Pass' or 'Fail'...the system will consider the mark, and if it's 50 or over, award 'Pass,' else it awards 'Fail.' This is an example of which of the algorithm constructs?

    • Decision

    • Loop

    • Sequence

    • All of the above

    Correct Answer
    A. Decision
    Explanation
    This is an example of the decision algorithm construct. The flowchart represents a decision-making process where the system checks if the mark is 50 or over. If it is, the system awards 'Pass,' and if it's not, it awards 'Fail.' The decision construct is used to make choices or decisions based on certain conditions or criteria.

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  • 7. 

    A flowchart needs to represent a situation where the user is asked to enter his age, the age is read into the system, and the system outputs a 'Thank You' message. This is an example of which of the algorithm constructs?

    • Decision

    • Loop

    • Sequence

    • All of the above

    Correct Answer
    A. Sequence
    Explanation
    The given scenario of asking the user to enter their age, reading it into the system, and outputting a 'Thank You' message follows a sequence of steps. It involves a series of actions that are performed in a specific order, without any branching or repetition. Therefore, the correct answer is "Sequence."

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  • 8. 

    Why is a flowchart required?

    • To plan a program before making it.

    • To execute a program.

    • It is easy to use.

    • To analyze the program.

    Correct Answer
    A. To plan a program before making it.
    Explanation
    A flowchart is required to plan a program before making it because it provides a visual representation of the logical steps and flow of the program. It helps in organizing and structuring the program's logic, making it easier to understand and identify any potential errors or improvements. By creating a flowchart, programmers can effectively plan the program's structure, sequence, and decision-making processes, ensuring a more efficient and error-free implementation.

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  • 9. 

    A flowchart needs to represent a situation where the user is asked to enter 20 marks in succession. This is an example of which of the algorithm constructs?

    • Decision

    • Loop

    • Sequence

    • All of the above

    Correct Answer
    A. Loop
    Explanation
    The correct answer is Loop. This is because a loop is used to repeat a set of instructions multiple times until a certain condition is met. In this situation, the user is asked to enter 20 marks in succession, indicating that the process of entering marks needs to be repeated 20 times. Therefore, a loop construct would be appropriate to represent this scenario in a flowchart.

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  • 10. 

    What are the three algorithm constructs?

    • Sequence, selection, repetition.

    • Input, output, process.

    • Input/output, decision, terminator.

    • Loop, input/output, process.

    Correct Answer
    A. Sequence, selection, repetition.
    Explanation
    The three algorithm constructs are sequence, selection, and repetition. Sequence refers to the order in which instructions are executed. Selection allows the program to make decisions based on certain conditions. Repetition allows a certain set of instructions to be repeated multiple times. These three constructs are fundamental in designing and implementing algorithms to solve problems in computer science and programming.

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Godwin Iheuwa |MS (Computer Science) |
Database Administrator
Godwin Iheuwa, a Database Administrator at MTN Nigeria, holds an MS in Computer Science, specializing in Agile Methodologies and Database Administration from the University of Bedfordshire and a Bachelor's in Computer Science from the University of Port Harcourt. His proficiency in SQL Server Integration Services (SSIS) and SQL Server Management Studio contributes to his expertise in database management.

Quiz Review Timeline (Updated): Jan 12, 2025 +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Jan 12, 2025
    Quiz Edited by
    ProProfs Editorial Team

    Expert Reviewed by
    Godwin Iheuwa
  • Jan 29, 2010
    Quiz Created by
    Marlenegalea
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