TSSA EDM-A Exam common mistakes
TSSA EDM-A Exam · Understand the traps and how to avoid them.
Treating the EDM-A as a pure code-memorization test and answering from general elevator knowledge instead of citing the specific Ontario regulation or CSA B44 clause that governs the scenario.
Candidates with field experience assume their practical habits match the code, but the exam is written against the adopted edition of CSA B44 and the Technical Standards and Safety Act regulations, and habitual practice sometimes lags or exceeds the code.
What to do instead
Build a clause map before exam day: for each major topic (hoistway enclosure, pit, machine room, safety devices, buffers, governors, door interlocks, maintenance, alterations) write the clause number and a one-line summary. When practising, force yourself to name the clause before choosing an answer.
Confusing the roles of the constructor, the owner, the licensed contractor, and the elevating device mechanic when a question asks who is responsible for a specific duty such as log retention, periodic inspection, or reporting an incident.
In the field these responsibilities overlap in practice, and candidates answer from who usually does the task rather than who the regulation assigns it to.
What to do instead
Make a four-column responsibility table (constructor/owner/contractor/mechanic) and fill it with the duties named in the Act and regulation: notification of installation, acceptance inspection, periodic inspections, maintenance records, incident reporting, and taking a device out of service. Review it until you can assign any duty in under ten seconds.
Answering maintenance-interval and record-keeping questions with round numbers or personal practice (for example 'monthly' or 'annually') rather than the interval and content the regulation actually prescribes.
Interval rules are easy to half-remember, and many workplaces run their own schedules that differ from the minimum required, so the familiar answer is often the wrong one.
What to do instead
Write out the prescribed maintenance and inspection frequencies and the required contents of the maintenance record on one page, including who must sign and how long records are kept. Test yourself with scenario questions where the tempting answer is a plausible but non-prescribed interval.
Misreading the question's device type or duty class, then applying passenger-elevator rules to a freight elevator, dumbwaiter, escalator, or a device with a different rated load or speed classification.
Stem wording is dense and candidates skim for keywords like 'safety' or 'inspection' and jump to a familiar rule before noting the equipment category.
What to do instead
Adopt a two-pass reading method: first pass underline the device type, rated load, speed, and occupancy; second pass identify what is being asked. Practise with mixed sets where the same concept appears for an elevator, an escalator, and a dumbwaiter so the distinctions become automatic.
Choosing the 'safest-sounding' answer on safety-circuit and electrical questions instead of the answer that matches how the safety chain, door interlocks, and fault detection are actually arranged and reset.
Candidates reason from intuition ('more switches must be safer') rather than from the required arrangement and the defined reset procedure, and exam distractors are written to reward that intuition.
What to do instead
Draw the safety-circuit schematic from memory, labelling each switch, its function, and the reset condition. Then work questions by eliminating any option that contradicts the drawn circuit, even if it sounds more conservative.
Skipping the units and conversions in load, speed, and pressure questions, or mixing imperial and metric values carried in the same stem.
Stems deliberately include mixed units and realistic field numbers, and candidates compute correctly but answer in the wrong unit or forget to convert before comparing to a limit.
What to do instead
Before calculating, write the target unit next to the question mark, convert every given value to that unit first, and sanity-check the result against typical field magnitudes (for example rated load in kilograms versus pounds, and governor trip speed as a percentage of rated speed).
Treating acceptance inspections and periodic inspections as interchangeable, so the candidate applies periodic criteria to a new installation or vice versa.
Both involve inspection and testing, and candidates remember the tests but not which stage they belong to or what documentation each stage requires.
What to do instead
Build a stage table with columns for new installation acceptance, altered installation, and periodic inspection, listing the tests, the witnessed items, and the documents required at each stage. Answer stage questions by locating the scenario in that table before reading the options.
Ignoring the 'not', 'except', and 'first action' qualifiers in scenario questions and selecting a true statement that does not answer what was asked.
Under time pressure candidates match a recognized fact to an option and stop reading, and negatively worded stems are where this costs the most marks.
What to do instead
Circle or mentally box every qualifier before evaluating options, and restate the stem in your own words as a question. When two options both look true, ask which one satisfies the qualifier and discard the other regardless of accuracy.
Answering incident, accident, and hazard-reporting questions from general workplace first-aid or Ministry of Labour habits rather than the elevating-device reporting chain and timelines.
Candidates transfer reporting knowledge from other safety contexts, and the elevating-device notification requirements, immediate shutdown duties, and preservation of evidence are specific and easy to conflate.
What to do instead
Write a short incident-response sequence: make safe and secure the device, notify the owner and the regulator as required, preserve the scene and records, and do not return the device to service until the required steps are complete. Learn the sequence as an ordered list and test it against scenarios involving injury, entrapment, and equipment damage.
Spending disproportionate time on calculation-heavy questions and leaving regulation and inspection-procedure questions unanswered at the end of the sitting.
Calculation questions feel productive and candidates over-invest in them, while the shorter regulatory items that carry equal marks are left blank.
What to do instead
Do a first pass answering every question you can resolve in under a minute, flag calculations and long scenarios, then return to them. Never leave a blank: mark a best-guess answer and flag it, and reserve the final minutes for reviewing flagged items rather than starting new calculations.