Northwest Territories Class 7 Knowledge Test — Class 7 Practice Question
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Accuracy —
Rules of the Road
In NWT extreme cold (below -25°C), block heater use is:
Show Answer & Explanation
Correct Answer: B. Essential — engines don't start reliably without pre-heating
Cold-soaked oil thickens dramatically below -20°C; block heaters keep coolant warm for starts.
Why the other answers are wrong
- A.DecorativeBlock heaters are functional, not decorative.
- C.OptionalIn NWT climate they are essential, not optional.
- D.DangerousProper installation makes them safe; poor wiring is the rare hazard.