Timed Quiz Web App with Per-Question Timer – Apps Script

B15 is an online quiz with real exam pressure built into it. A student logs in, chooses their categories, and from the moment they press Proceed there are two clocks running: ten minutes for the whole paper and one minute for the question in front of them. Let a question run out and it is scored zero and the quiz moves on, which is exactly how a timed test should behave.

Pick five, no more and no fewer

Before starting, the student selects categories — science, tech, finance, English, politics, or whatever you set up. The rule is exactly five. A category disappears from the list once it is chosen so nobody picks the same one twice, and reaching for a sixth is refused with a message. Only when five are selected does the Proceed button appear.

Questions drawn from what they chose

Each question is pulled at random from the categories that student selected, rotating between them rather than working through one sheet at a time. Two students who picked different combinations sit different papers. Answering gives immediate colour feedback — green for right, red for wrong — and the score appears when the paper is submitted or when the ten minutes run out, whichever comes first.

Questions live in the sheet

Every category is its own sheet tab: the question in one column, the options across the next few and the correct answer in its own column. Add as many questions as you like to a category, or add a whole new category by adding a tab — it appears in the picker on the next login with no code change.

Results you can mark from

A results sheet records who sat the quiz, the marks they scored, which five categories they chose and the date and time, so a class of results is one sheet rather than a pile of screenshots.