TSSA EDM-B Exam common mistakes
TSSA EDM-B Exam · Understand the traps and how to avoid them.
Answering code questions from memory of a single clause instead of locating the requirement in the governing standard, so the answer reflects the habit of a previous job rather than the current adopted edition.
Candidates often learned the trade under an older edition or a municipal variant, and the EDM-B exam is written against the edition cited in the exam scope. Recalled clause numbers and thresholds drift between editions.
What to do instead
Before the exam, build a one-page index of the standards named in the exam scope (elevating devices code, electrical code, and referenced CSA/ASME material) listing only the sections you will be tested on. In practice questions, cite the clause before choosing an answer; if you cannot cite it, mark it for review.
Confusing the responsibilities of the owner, the licensed contractor, the mechanic, and the safety authority when a question asks who must do something or who must be notified.
Day-to-day work blurs roles, and candidates answer with who actually performs the task on their site rather than who is legally responsible under the Act and regulations.
What to do instead
Make a four-column table (owner, contractor, mechanic, regulator) and sort duties into it: notification of alteration, incident reporting, maintenance records, inspection requests, and permission to operate. Drill until each duty maps to one accountable party.
Treating inspection and permitting questions as paperwork trivia and skipping them, then losing easy marks on when a permit is required, when an inspection must be requested, and what must happen before a device returns to service.
These topics feel administrative compared with technical troubleshooting, so candidates under-study them, yet they are predictable and heavily weighted.
What to do instead
Memorize the lifecycle sequence: permit before work, notification when work reaches the inspection stage, inspection before return to service, and record retention. Write the sequence from memory daily until it is automatic.
Mixing up the electrical fundamentals that underpin elevator control - series versus parallel circuits, normally open versus normally closed contacts, and how a relay coil behaves when de-energized - and then misreading schematic logic.
Many candidates are mechanically trained and learned electrical theory on the job, so they reason from observed behaviour rather than from circuit laws, which fails on hypothetical schematics.
What to do instead
Redraw a simple safety circuit and a simple call circuit by hand, labeling every contact state at rest and when energized. Practice reading a schematic and predicting which contacts open on power loss before checking the answer.
Assuming a safety device is functioning because the car moves normally, instead of evaluating the device against its specific test criteria and set points.
Functional observation is how problems are caught in the field, but exam questions describe a device that operates yet fails its test, and candidates default to 'it works, so it passes'.
What to do instead
For each safety device (governor, safeties, buffers, door interlocks, slack rope, overspeed, final limits), write the test method, the pass criterion, and a common false-pass. Study the false-pass column hardest.
Misapplying the wiring and protection rules for elevator power and control circuits - disconnecting means location and identification, branch circuit protection, grounding and bonding, and separation of power from control conductors.
Candidates memorize 'there must be a disconnect' without the placement, labeling, and lockability details, and they conflate grounding with bonding.
What to do instead
Build a checklist for the machine room disconnect: location relative to the equipment, identification requirements, ability to be locked, and what it must not interrupt. Pair it with a separate bonding-versus-grounding comparison and test yourself on both.
Answering maintenance and record-keeping questions with what is good practice rather than what the regulation requires, such as frequency of examination, who may perform it, and what must be documented.
Experienced candidates have strong opinions about sensible maintenance intervals and assume the code agrees with their practice.
What to do instead
Separate the two lists: 'required by regulation' and 'good practice'. Only the first belongs in an exam answer. For each record type, note who signs it, how long it is kept, and where it must be available.
Guessing on questions about alterations and major alterations, especially whether a change triggers a full code upgrade, a permit, or a new inspection regime.
The distinction turns on definitions rather than on the physical size of the job, and candidates judge by effort or cost instead of by the defined criteria.
What to do instead
Memorize the definition of alteration and major alteration word by word, then classify ten example jobs against it. Note which classifications force compliance with the current edition and which do not.
Losing marks on incident and accident reporting: what must be reported, to whom, how quickly, and whether the device may be returned to service before the regulator attends.
Incidents are rare, so the procedure is unfamiliar, and candidates assume the normal repair-and-return workflow still applies.
What to do instead
Write a one-page incident flowchart: secure the device, notify the regulator within the required time, preserve evidence, do not return to service without authorization, then document. Rehearse it as a sequence rather than as isolated facts.
Running out of time because every question is answered at the same pace, leaving the longer scenario and calculation items unfinished.
Candidates treat all items as equally costly and refuse to move on when a question does not resolve quickly, which is common when the exam mixes recall with applied scenarios.
What to do instead
Do two passes. On the first pass answer only items you can resolve in under a minute and flag the rest. On the second pass work the flagged items, and reserve the final minutes for flagged guesses with no blanks left. Practice with a timer on full-length sets so the pacing is trained, not improvised.