The device allowing for the change in volume of the cooling water in a propulsion diesel engine closed cooling system is the ().
- Afresh water expansion tank
- Bsea water expansion tank
- Cthermostatic expansion valve
- Djacket water cooler accumulator
The device allowing for the change in volume of the cooling water in a propulsion diesel engine closed cooling system is the ().
1、The device that allows a floating ship
The device that allows a floating ship to sway without bending the marine riser system is the().Ayaw jointBsway jointCslip jointDflex or ball joint
2、●In the following, the input device is
●In the following, the input device is _(72) .(72)A keyboardB monitorC printerD plotter
3、Which of the motors for the devices li
Which of the motors for the devices listed below is fitted with an instantaneous overload relay?()AFanBPumpCWinchDMachine tool
4、Allowances may be made for the expansi
Allowances may be made for the expansion and contraction in piping by the use of expansion joints or ().AUnionsBRetractable flangesCUnion bulkhead fittingsDBends or loops in the line
5、The device used for preventing the pas
The device used for preventing the passage of flames into enclosed spaces is called a ().Aflame relief valveBflame stopperCsafety valveDflame arrester
6、The device, which is installed in the
The device, which is installed in the compressor suction line to prevent liquid from entering the compressor when hot gas defrosting, is called a()Are-evaporatorBreceiverCdehydratorDsolenoid