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Boilers practice questions

26 questions from the boiler operator and stationary engineer practice test.

Boilers practice test

10 questions, graded as you go, with the reason for every answer. No sign-up.

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Sample questions

A hot-water heating boiler is classed as low pressure when it does not exceed which limits?

  1. 160 psi and 212°F
  2. 125 psi and 250°F
  3. 30 psi and 250°F
  4. 160 psi and 250°F
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D. 160 psi and 250°F

The heating boiler rules cover hot-water boilers up to 160 psi and 250°F. 212°F is only the boiling point at atmospheric pressure; water under pressure can be hotter and still be within the low-pressure class.

Reference: ASME BPVC Section IV, scope (160 psi, 250°F water)

Which section of the ASME Boiler and Pressure Vessel Code gives the construction rules for power (high-pressure) boilers?

  1. Section I
  2. Section IV
  3. Section VIII
  4. Section IX
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A. Section I

Section I covers power boilers. Section IV is the one people confuse with it; it covers heating (low-pressure) boilers. Section VIII is pressure vessels and Section IX is welding qualifications.

Reference: ASME BPVC Section I, Rules for Construction of Power Boilers

Which section of the ASME Boiler and Pressure Vessel Code gives the construction rules for low-pressure heating boilers?

  1. Section I
  2. Section VI
  3. Section VIII
  4. Section IV
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D. Section IV

Section IV is the heating boiler construction code. Section VI is tempting because it also deals with heating boilers, but it is the recommended rules for their care and operation, not construction.

Reference: ASME BPVC Section IV, Rules for Construction of Heating Boilers

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