The() is fitted in pair one is the main valve, the other the auxiliary or standby.
- Amain stem stop valve
- Bauxiliary steam stop valve
- Cfeed check or control valve
- Dblow down valve
The() is fitted in pair one is the main valve, the other the auxiliary or standby.
1、The volute pump is one in which the im
The volute pump is one in which the impeller ().Adischarges into a gradually widening channelBhas stationary diffuser vanesCproduces no kinetic energyDAll of the above are true
2、Which one of the following is the most
Which one of the following is the most commonly used layer 2 network device?()A HubB BridgeC SwitchD RouterE RepeatersF None of the above
3、A reaching course is one in which the
A reaching course is one in which the wind().Acomes directly over the bowBcomes directly over the sternCcomes over an area extending from broad on the bow to the quarterDhas no effect on the vessel
4、The bridge is fitted()two radars.
The bridge is fitted()two radars.AbeforeBonCfromDwith
5、The ()is fitted on an oily water separ
The ()is fitted on an oily water separator.Asliding bowl bottomBgravity discCbowlDliquid level detector
6、The()is fitted in the main steam suppl
The()is fitted in the main steam supply line and is usually of the non-return type.Amain steam stop valveBauxiliary steam stop valveCfeed check or control valveDblow down valve