单选题An exhaust gas bypass is installed on a waste heat boiler in order to （）.Abypass exhaust gas at high loads to prevent excessive back pressureBbypass a portion of the exhaust gas at peak loads for better efficiencyCrecycle exhaust gas to the turbochargerDminimize moisture condensation in the boiler gas passages at low loads
单选题
An exhaust gas bypass is installed on a waste heat boiler in order to （）.
A
bypass exhaust gas at high loads to prevent excessive back pressure
B
bypass a portion of the exhaust gas at peak loads for better efficiency
C
recycle exhaust gas to the turbocharger
D
minimize moisture condensation in the boiler gas passages at low loads
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