[单选题]A.4台B.5台C.6台D.7台
[单选题]A.150mmB.160mmC.175mmD.195mm
[单选题]某一城市热电厂,装有两台高压锅炉,锅炉连续排污水至连续排污扩容器。每台锅炉的连续排污量为1200kg/h,焓值为1300kJ/kg,连续排污扩容器中扩
[单选题]A.10102B.13068C.19025D.30347
[单选题]A.0.66MPaB.0.73MPaC.0.86MPaD.0.91MPa
[单选题]一台蒸汽锅炉,额定蒸发量10t/h,额定蒸汽压力25MPa,设计使用压力0.9MPa,省煤器和给水系统的压力损失0.15MPa,锅炉给水箱为敞开式,其
[单选题]A.16.46mmB.18.32mmC.19.83mmD.25.53mm
[单选题]A.633kPaB.636kPaC.641kPaD.644kPa
[单选题]A.1.362kg/sB.1.280kg/sC.1.162kg/sD.1.080kg/s
[单选题]某台汽轮机,当发电90MW时,离开汽轮机时主给水焓值降至850kJ/kg,热耗率增至9980kJ/(kW·h),但进入汽轮机的主蒸汽焓值仍为3305k
[单选题]A.0.518m/sB.1.037m/sC.2.073m/sD.3.26m/s
[单选题]A.1.97mB.2.52mC.2.84mD.3.16m
[单选题]有一座6层居民住宅,每层燃具热负荷为2.8kW,各燃具共用一个烟道,由一引风机排出废气,求废气量为何值?()A.B.C.D.
[单选题]A.3台B.4台C.5台D.6台
[单选题]当煤气发生炉出口最大工作压力P=1200Pa时,计算发生炉钟罩阀内放散水封有效高度。()A.120mmB.170mmC.1250mmD.1700mm
[单选题]A.198875PaB.218875PaC.228707PaD.248707Pa
[单选题]A.19.91%~21.41%B.21.51%~23.44%C.23.51%~25.44%D.25.51%~27.44%
[单选题]A.1239PaB.1150PaC.1106PaD.959Pa
[单选题]A.68kWB.75kWC.136kWD.145kW
[单选题]一台饱和蒸汽锅炉,蒸发量为5.56kg/s,每公斤煤带入锅炉的热量为23027kJ/kg,排烟损失8.7%、化学不完全燃烧损失为0.5%、机械不完全燃
[单选题]有一台300MW汽轮发电机组,所配锅炉效率是92%,每小时燃煤量100t/h(标准煤),假设管道效率、发电机效率均为100%,汽轮机热耗率是多少?()
[单选题]A.35.56Pa/mB.38.82Pa/mC.44.64Pa/mD.48.43Pa/m
[单选题]A.49%,39.33%B.49%,52.89%C.62%,65.96%D.62%,68.42%
[单选题]A.0.8B.0.82C.0.84D.0.86
[单选题]A.18987kJ/kgB.19281kJ/kgC.19312kJ/kgD.20088kJ/kg
[单选题]A.5mB.20mC.30mD.55m
[单选题]A.0.027B.0.0349C.0.0432D.0.0512