The expansion valve on a Freon system controls the ().
- Asuperheat of the gas leaving the compressor
- Bback pressure in the evaporator
- Ctemperature of the icebox
- Dsuperheat of the gas leaving the evaporator
The expansion valve on a Freon system controls the ().
1、In setting the valves on a steam-smoth
In setting the valves on a steam-smothering system on a tank vessel,the master control valve to cargo tanks should be().Aopen and individual...
2、Safety valves on a boiler vent to the
Safety valves on a boiler vent to the ().Afuel tankBbilgeCatmosphereDauxiliary exhaust line
3、The valve on the discharge side of a c
The valve on the discharge side of a cargo pump on a tanker will usually be a().Abutterfly valveBspectacle valveCcheck valveDglobe valve
4、A cutoff valve in the fire-main system
A cutoff valve in the fire-main system of a ship may be closed to protect the portion of the system on an exposed deck from().Adamage from crane operationsBbeing used for wash down purposesCaccidental diversion of flow to wrong locationDfreezing
5、Thermostatic expansion valves can be a
Thermostatic expansion valves can be adjusted for ().Asuction pressure onlyBhead pressure onlyCsuperheat onlyDsuction pressure and box temperature
6、In setting the valves on a steam-smoth
In setting the valves on a steam-smothering system on a tanker,the master control valve to cargo tanks should be().Aopen and individual tank...