Pascal Interview Questions and Answers

Last updated on Feb 06, 2023
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Pascal Interview Questions

In simple words, Pascal is a programming language that supports programming structured and data structures. It is a third-generation language designed for instructional purposes. The language is developed by Niklaus Wirth in 1971 and is named after the Mathematician scientist Blaise Pascal. One pascal is equivalent to one newton (1 N) of force applied over an area of one meter squared, that is (1 Pa = 1 N . m-2). Mentioned below are some of the Pascal Triangle Interview Questions that will help you get the right knowledge.

Most Frequently Asked Pascal Interview Questions

Here in this article, we will be listing frequently asked Pascal Interview Questions and Answers with the belief that they will be helpful for you to gain higher marks. Also, to let you know that this article has been written under the guidance of industry professionals and covered all the current competencies.

Q1. What makes Pascal a good language in modern programming?
  • It is a structured language that has structures like repeat-until statements, if-else.
  • It provides simplicity and a modern approach
  • It includes data structures like arrays, pointers, records, and files
  • It provides exact sizes used by operators
Q2. What is Pascal sets?

It is a collection of elements of the same type which allows defining the set data type.

Q3. What are Pascal units?

A program consists of modules known as Pascal units which consist of code blocks, variables, statement procedures, and declarations.

Q4. What are the data types included in Pascal?

Data types mean a range of value that a variable can store. The predefined data types are integers, the real numbers, Boolean data types files that define only two values, and the last one is a char data type.

Q5. What is the control structure used by Pascal?

To display the flow of control in a structured manner, Pascal uses a structured programming language. It also uses the goto statement that gives control to the main program in a recursive manner.

Q6. What are the sub-range types in Pascal language?

The sub-range means implementation of the functions for data conversions on the data types like real to the integer. One such is

  • X: 1.. 10;
  • Y: ‘a’..’z’;
  • Z: Apple. Mango;
Q7. What are the different pointers used in Pascal?

The different pointer types used in Pascal are recorder pointer, reference pointer, and the last associate pointer.

Q8. What are the report methods for portability in Pascal?

The first method is an application which allows using implementation and features according to the compiler and second is a compiler that is likely to implement the features that are compatible with one another.

Q9. What are Pascal constants?

Constant means which remains unchanged.

Following are the 6 constants

  • Set Types
  • Real Types
  • Ordinal Types
  • Pointer Types
  • String and char
Q10. In Pascal, what is the syntax to define constants?

The syntax used to declare constant is
Identifier = constant_value;

Key features of pascal programming language

  • High speed and low memory use
  • Great Integration with assembler
  • Distribution Independence
  • Each unit has its own identifiers
  • Very clean language
  • Object-Oriented programming

Development History

  • The programming language was designed by Niklaus Wirth in 1968-1969 and it was published in 1970.
  • ALGOL 60 pattern is similar to the Pascal Language on which it is developed.
  • Its Object-oriented programming version was launched in 1985.

Some programmers feel that Pascal is too restrictive in its rules and doesn't allow a programmer to state new rules. But eventually, it started providing simplicity and a modular approach for machine implementation. You will get to know about this when you start reading pascal interview questions and answers that we are mentioning down below. Modern Pascal uses more securities and fewer ambiguities while programming or coding and still used as an instructional language.

Latest Version: The latest version of Free Pascal is version 3.0.4 and development releases version numbers 3.1.x.

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