Sanitärmeister/in HFP common mistakes
Sanitärmeister/in HFP · Understand the traps and how to avoid them.
potable-water-hygiene: Treating one familiar device as protection against every failure mechanism.
The actual design, hazard and current authority are replaced by an isolated remembered example.
What to do instead
Identify the relevant mechanism, actual system criteria and current authoritative basis, then obtain the competent verification and responsible decision.
potable-water-hygiene: Transferring an unverified foreign numeric rule into a Swiss installation.
The actual design, hazard and current authority are replaced by an isolated remembered example.
What to do instead
Identify the relevant mechanism, actual system criteria and current authoritative basis, then obtain the competent verification and responsible decision.
drainage-system-performance: Treating one familiar device as protection against every failure mechanism.
The actual design, hazard and current authority are replaced by an isolated remembered example.
What to do instead
Identify the relevant mechanism, actual system criteria and current authoritative basis, then obtain the competent verification and responsible decision.
drainage-system-performance: Transferring an unverified foreign numeric rule into a Swiss installation.
The actual design, hazard and current authority are replaced by an isolated remembered example.
What to do instead
Identify the relevant mechanism, actual system criteria and current authoritative basis, then obtain the competent verification and responsible decision.
sanitary-energy-gas: Treating one familiar device as protection against every failure mechanism.
The actual design, hazard and current authority are replaced by an isolated remembered example.
What to do instead
Identify the relevant mechanism, actual system criteria and current authoritative basis, then obtain the competent verification and responsible decision.
sanitary-energy-gas: Transferring an unverified foreign numeric rule into a Swiss installation.
The actual design, hazard and current authority are replaced by an isolated remembered example.
What to do instead
Identify the relevant mechanism, actual system criteria and current authoritative basis, then obtain the competent verification and responsible decision.
Manufacturing to a ruler measurement on a rescaled print.
The visible result or familiar label does not establish the actual model, concealed requirement, compatible material or authorized safe method.
What to do instead
Verify the actual written dimensions, revision and scale discrepancy.
Marking mating parts from inconsistent reference edges.
The visible result or familiar label does not establish the actual model, concealed requirement, compatible material or authorized safe method.
What to do instead
Use the specified common datums and check the actual geometry.
Signing a concealed-work hold point without the required evidence.
The visible result or familiar label does not establish the actual model, concealed requirement, compatible material or authorized safe method.
What to do instead
Follow the actual verification and escalation process before covering.
Treating one generic glove or mask as sufficient for every tool and material.
The visible result or familiar label does not establish the actual model, concealed requirement, compatible material or authorized safe method.
What to do instead
Use task-specific hazard assessment, equipment instructions and appropriate competence.
Confusing cash flow with profit, or treating a cash-flow forecast as a profit forecast - for example calling a positive closing balance 'profit' or saying a firm is 'profitable because it has cash'.
The two statements look similar and both are presented as tables of numbers. Candidates learn definitions separately but never compare the two documents side by side, so they miss that profit includes non-cash items (depreciation) and accruals while cash flow records timing of receipts and payments, including capital and loan transactions.
What to do instead
Drill the distinction with paired examples: a firm making a sale on credit (profit up, cash unchanged), buying a machine for cash (cash down, profit only via depreciation), repaying a loan (cash down, not an expense). When a question gives both documents, require one sentence in the answer that explicitly explains why the two figures differ.
Confusing the different break-even and contribution calculations, or applying a formula without interpreting the result - e.g. calculating margin of safety as a percentage when asked for units, or giving a break-even figure with no comment on what it means for the decision.
Candidates memorise formulas as strings of symbols and lose track of what each output measures. The calculation is treated as the end of the question rather than the input to the judgement, so marks for interpretation are lost even when the arithmetic is right.
What to do instead
Label every formula with its unit and meaning (break-even = units of output; margin of safety = units or % above break-even; contribution per unit = money per unit). After any calculation, write a fixed two-sentence interpretation: what the number means and what it implies for the firm in the stem. Show workings line by line so method marks survive an arithmetic slip.