()enables water to be blown down or emptied from the boiler
A: scum valve
B: soot blower
C: blow-down valve
D: vent cock
A: scum valve
B: soot blower
C: blow-down valve
D: vent cock
举一反三
- The()is fitted in the steam supply line and is usually of the<br/>non-return type. A: main steam stop valve B: auxiliary steam stop valve C: feed check or control valve D: blow down valve
- Valve in the heart enables it to function by opening and closing, preventing blood from passing through. A: 正确 B: 错误
- In a refrigeration system, if the cooling water to the condenser fails, the（）. A: box temperature solenoid valve will close B: expansion valve will close C: compressor will shutdown D: king valve will ope
- Washing the food down with water as a substitute______chewing is not a good habit. A: of B: for C: to D: from
- The word "valvulotome" means _______________. A: incision of a valve B: an opening of the valve C: an instrument for cutting a valve D: surgical repair of a valve