Some large A-Cmotors are equipped with heatersThese could be () (1)resistance heaters bolted directly to the frame (2)low voltage windings embedded in the motor windings
- A(1) only
- B(2) only
- Ceither (1) or (2)
- Dneither (1) or (2)
Some large A-Cmotors are equipped with heatersThese could be () (1)resistance heaters bolted directly to the frame (2)low voltage windings embedded in the motor windings
1、Lubricating oil systems are fitted wit
Lubricating oil systems are fitted with a wide variety of strainers some of which can be cleaned in site while others have replaceable cartrid...
2、Usually the panels are interlocked wit
Usually the panels are interlocked with () so that the devices can be made dead before the doors are opened.Aprotective earthBisolatorsCground switchDcircuit-breaker
3、Some vessels are equipped with a water
Some vessels are equipped with a water lubricated stern robeWhen at sea, operating under normal conditions, the water service valve from the sh...
4、() are more suitable for large quantit
() are more suitable for large quantities at low pressure.AReciprocating pumpsBRotary pumpsCCentrifugal pumpsDGear pum
5、Which two capabilities are granted wit
Which two capabilities are granted with the SUPER privilege?()AAllowing a client to kill other client connectionsBAllowing a client to shut dow...
6、Mooring winches are often combined wit
Mooring winches are often combined with () units so that one prime mover drives both.AcraneBhatch coverCwindlassDsteering gear