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Practice and exam technique

Mock walkthrough

Compiled by the Sitonce editorial team from PTCB's own published outline, the federal regulations named below and US Bureau of Labor Statistics dataUpdated 2 min readFacts verified 5 September 2026
The short answer

Sit 90 questions in 110 minutes on unseen material, in one uninterrupted block, without your own calculator. Then read the domain breakdown rather than the total.

The only measurement that predicts the day, and most candidates degrade it before they take it.

Conditions, or it does not count

  • Ninety questions, not 80, because all 90 take time on the day
  • One hundred and ten minutes, timed, in one uninterrupted block
  • Unseen questions only
  • No notes, no pausing, nothing looked up
  • Not your own calculator, because you will not have it

Each of those is a way the measurement gets quietly softened, and each softening makes the score less useful.

During

Two passes. Note the time at question 45 - you should be past it with fewer than 55 minutes gone.

Do not check answers as you go. That converts a measurement into study and you cannot do both at once.

The review is the product

The total is the least useful number in the report

What matters is accuracy per domain against the blueprint weights, and the reason behind each miss. A candidate scoring the same total twice can have two completely different problems, and only the breakdown distinguishes them.

Classify every miss

ReasonWhat to do
Did not know itStudy that knowledge area
Knew it, misread the stemSlow down on stems; this is not a knowledge problem
Ran out of timeConversions drill and two-pass discipline
Used a state ruleRelearn the federal position deliberately

One word per miss, written down. The pattern is usually obvious after twenty of them and invisible without the record.

What a good result looks like

At or above your readiness target, with no domain collapsing, finished inside the time with a few minutes spare.

All three. A strong total with a failing Federal Requirements is not a pass signal, because that domain is 15 scored questions and it will not improve on its own.

How many

Two. One at about three quarters through to find the gaps, one near the end to confirm the repair.

Common questions

How should I sit a PTCE mock?

90 questions in 110 minutes, unseen, uninterrupted, without your own calculator.

Should I use 90 questions or 80?

Ninety. All 90 take time on the day even though only 80 are scored.

What matters in the result?

The domain breakdown and the reason for each miss, not the total.

What does a good result look like?

At your readiness target, no domain collapsing, finished with a few minutes spare.

How many mocks should I sit?

Two - one at three quarters through, one near the end.