【December 30 Boiler Weekly Question】Multiple-choice question
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(Single-choice question) For boilers with an evaporation rate of 4 tons per hour or less, the time from starting the boiler when it is cold to reaching operating pressure must be no less than ( ) hours. A, 0.5. B, 1. C, 1.5. D, 2.
C, 1.5~~~~~~~~~~~~~~~~~~~~~~~
For boilers with an evaporation rate of 4 tons per hour or less, the time from starting the boiler when it is cold to reaching operating pressure must be no less than (D) hours. A, 0.5. B, 1. C, 1.5. D, 2.
For boilers with an evaporation rate of 4 tons per hour or less, the time from starting the boiler when it is cold to reaching operating pressure must be no less than (C, 1.5) hours.
For boilers with an evaporation rate of 4 tons per hour or less, the time from starting the boiler when it is cold to reaching operating pressure must be no less than (D) hours. A, 0.5. B, 1. C, 1.5. D, 2.
For boilers with an evaporation rate of 4 tons per hour or less, the time from starting the boiler when it is cold to reaching operating pressure must be no less than (C) hours. A, 0.5. B, 1. C, 1.5. D, 2
For boilers with an evaporation rate of 4 tons per hour or less, the time from starting the boiler when it is cold to reaching operating pressure must be no less than (d) hours. D, 2.