Question banks and marking

642 approved questions in 31 banks, each linked to the source paragraph it tests. An edit makes a new version; past attempts keep the one they answered.

Question editor

38 AI drafts are waiting for the SME.

Bank	Questions	Used in	Answered
Dangerous Goods: Segregation, 64 questions
Segregation basics	16	Pre-test, check, final exam	4,212
Incompatible classes	18	Check, final exam	3,880
Segregation devices Q14 flagged	10	Final exam	2,120
Acids and alkalis	8	Final exam	1,696
Load plan scenarios	12	Final exam, scenario	1,040
Forklift refresher, 48 questions
Pre-start checks	20	Check, exam	6,104
Stability and load centre	28	Exam	5,330

Coverage per outcome

DG Segregation

Explain why segregation matters

Name incompatible classes

Use a segregation device correctly

Keep acids and alkalis apart

Plan a compliant load

Two outcomes are thin, so learners see almost the same device and acid questions each attempt.

8 variants each: 20 tokens

Last 90 days, 212 learners. Flagged questions first.

Question	Discrimination	Answer choices	Claude's flag
Q14 Can Class 8 corrosives travel on the same vehicle as Class 5.1 oxidisers?	0.04	A 41B 38C	Ambiguous B is also right when a device is used.	About 5 tokens
Q22 Which document must travel in the cab with a mixed DG load?	-0.12	AB 35C 39	Possible wrong key Strong learners pick C over the marked B.	Check key
Q18 What colour is the Class 3 flammable liquid label?	0.05	A 97	Too easy Keep it in the pre-test, drop it from the exam.
Q9 A pallet of Class 2.1 gas sits next to Class 5.1. What do you do?	0.36	A 68BC	Dead distractor Nobody chose D in 212 attempts.	About 5 tokens
Q31 When may an empty tank that held Class 3 be unplacarded?	0.29	A 55BC	Source changed Cites the clause amended on 9 Oct.	See what changed

Discrimination shows whether strong learners do better on a question than weak ones. Above 0.3 is good, near zero tells you nothing, below zero usually means a wrong key. Green in the answer bar is the marked answer.

Claude marks written answers against the rubric for 1 token an answer. A person confirms every mark before the learner sees it.

Hemi Walker Segregation final exam, Q20

Waiting 22 hours

Why would you not load Class 3 flammable liquids next to Class 5.1 oxidisers?

Because the oxidiser can make a fire much worse if the fuel leaks, it gives it extra oxygen so it burns hotter and faster. So you keep them apart on the deck or you dont load them together, you check the DG declaration before you start.

AI mark against the rubric

4 of 5

Names the hazard: the oxidiser feeds a fire"gives it extra oxygen so it burns hotter"2 / 2 Names a consequence"fire much worse"1 / 1 States the rule: segregate or do not load together"keep them apart"1 / 1 Mentions a segregation device or the tableNot mentioned0 / 1

Maria Santos Class 2 licence theory exam, Q41, answered in Tagalog

Waiting 18 hours

Explain what you must do after five and a half hours of work time.

Kailangan kong ihinto ang sasakyan sa ligtas na lugar at magpahinga nang hindi bababa sa 30 minuto, at isulat ito sa logbook.

Machine translated: I must stop the vehicle in a safe place, take a break of at least 30 minutes, and write it in the logbook.

AI mark against the rubric

3 of 5

Stops in a safe place, takes 30 minutes and records it: 3 points. Does not say the break is time off work: 0 of 2.

Low confidence Marked in Tagalog against the English rubric. Read the original before confirming.

1 more: Tavita Faleolo, Forklift refresher exam, AI mark 6 of 6 with high confidence. Open