WeBWork Problem Authoring and Development 3

Question 1

Which file extension is used for WeBWork PG problem files?

Accepted Answer

.pg

Answer

.ww

Answer

.pl

Answer

.wb

Question 2

What is the purpose of `loadMacros()` at the top of a PG file?

Accepted Answer

To include reusable PG macro libraries that provide helper functions and features

Answer

To load external CSV data files into the problem

Answer

To register the problem with the Open Problem Library

Answer

To set the problem's display language and locale

Question 3

How can a WeBWork problem author dynamically generate a mathematical graph inside a PG problem?

Accepted Answer

Using init_graph() and related functions from PGgraphmacros.pl

Answer

By embedding an external URL to an image hosting service

Answer

By uploading a static PNG file to the course file manager

Answer

Using HTML5 canvas tags inside the PGML block

Question 4

What does the `Compute()` function do in a WeBWork PG problem?

Accepted Answer

It creates a MathObject by evaluating a string expression in the current Context

Answer

It calculates the problem's difficulty score for the OPL

Answer

It immediately runs the answer checker against a test value

Answer

It computes the student's cumulative grade for the assignment

Question 5

How does WeBWork evaluate whether a student's algebraic formula answer is correct?

Accepted Answer

It evaluates both expressions at multiple numerical points to check mathematical equivalence

Answer

It compares the student's answer character-by-character to the correct string

Answer

It requires the student to match the exact symbolic form of the correct answer

Answer

It uses a pattern-matching AI to interpret free-form mathematical writing

Question 6

What is the function of `DOCUMENT()` and `ENDDOCUMENT()` in a WeBWork PG file?

Accepted Answer

They mark the required start and end delimiters of every PG file

Answer

They define the document title and footer for PDF export

Answer

They create a new LaTeX document object for rendering

Answer

They separate the variable setup section from the solution section

Question 7

When authoring a multi-part problem in WeBWork using PGML, how are multiple answer blanks correctly implemented?

Accepted Answer

Defining multiple answer variables and placing [_____]{$ansN} entries throughout the PGML text

Answer

Creating separate .pg files for each part and linking them together

Answer

Using a MULTIPART() function that accepts an array of answers

Answer

Separating each part into a different homework set assignment