The device used for preventing the passage of flames into enclosed spaces is called a ().
- Aflame relief valve
- Bflame stopper
- Csafety valve
- Dflame arrester
The device used for preventing the passage of flames into enclosed spaces is called a ().
1、The device used for low-pressure contr
The device used for low-pressure control and high-pressure cutout on a compressor is called a()AcutoutBpressure controllerCcontroller switchDcutout switch
2、The preventer guy,as used on a convent
The preventer guy,as used on a conventional yard and stay rig,().Ais rigged at an angle of 70°to 90°from the guy it assistsBtakes t...
3、The best treatment for preventing trau
The best treatment for preventing traumatic shock after an accident is to().Ahave the victim exercise to increase circulationBkeep the victim from electrical equipmentCkeep the victim warm and dry while lying downDapply ice packs and avoid excitement
4、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
5、Which of the listed devices is used to
Which of the listed devices is used to measure pressure and convert it to an electrical signal?()ATransducerBReducerCTransformerDRectifier
6、()is used to prevent the entry of sea
()is used to prevent the entry of sea water to the machinery space.AA special sealing glandBPropellerCTailshaftDSterntube bearing