The internal part of boiler should be welded by yard if found ().
- Asealed
- Bcracked
- Cshape changed
- Ddeformed
The internal part of boiler should be welded by yard if found ().
1、The () of the main shaft should be mea
The () of the main shaft should be measured with a ().Aclearance;calipersBsinking;bridge gaugeCdiameter;bridge gaugeDclearance;lead wire
2、Which of the actions listed should be
Which of the actions listed should be taken FIRST to control an oil fire in a fuel oil tank?()ACommence draining that tank as quickly as possibleBSeal off all vents to that tankCActivate the CO2 system to that tankDShut off the steam heating coil
3、The internal part of boiler should be
The internal part of boiler should be cleaned by yard if found ().AscaledBwornCdeformedDrested
4、The tube in a boiler should be blinded
The tube in a boiler should be blinded if found ().AscaledBinformedCleakyDdeformed
5、The () of the lubricant should be suff
The () of the lubricant should be sufficient to hold the film together, but it should allow the lubricant to flow easily.Aspecific gravityBviscosityCacid valueDcalorific value
6、The shaft and spare parts() should be
The shaft and spare parts() should be well greased in order to avoid corrosion.Ain the store roomBin the cylinderCin the scavenge air boxDin the water box