____ can be used to provide support to heavy loads.
1. Fluid film lubrication
2. Restricted lubrication
3. Boundary lubrication
4. Intermittent lubrication
5. Floc lubrication - ANSWERS-1. Fluid film lubrication
The forced draft fan is started up by the programming control
immediately prior to ____ during an automatic boiler startup.
1. post-pure period
2. main flame establishing period
3. main flame ignition period
4. energizing the ignition transformer
5. main flame trial - ANSWERS-4. energizing the ignition transformer
Within the boiler feedwater system corrosion can be suspected if you
discover ____.
1. rust in the water level of the gauge glass
2. the boiler is experiencing swell or shrinkage
3. an increase in make-up water consumption
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, ABSA 4B EXAM LATEST
4. a high boiler water level
5. a low boiler water level - ANSWERS-1. rust in the water level of the
gauge glass
During the normal operation of a boiler the proper operation ____ is
unable to be tested.
1. mud drum level
2. flame scanner
3. low water fuel cutoff
4. steam drum level
5. steam pressure gauge - ANSWERS-3. low water fuel cutoff
Adjusting the operating temperature in the generator controls the ____.
1. lithium bromide concentration
2. non-condensable gas concentration
3. water concentration
4. freon concentration
5. salt concentration - ANSWERS-1. lithium bromide concentration
Plant fire suppression systems have ____ installed.
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, ABSA 4B EXAM LATEST
1. circulating water pumps
2. chemical feed pumps
3. circulating oil pumps
4. fire pumps - ANSWERS-4. fire pumps
Boiler fitting should not be installed in process systems if they are not
____.
1. inspected
2. categorized
3. painted
4. clearly or easily identified
5. lubricated - ANSWERS-4. clearly or easily identified
A steam engines logsheet for bearing monitoring should include:
1. Operating temperature
2. Bearing lubrication oil flow rate
3. Vibration levels
4. Operating pressure
5. All of the above - ANSWERS-5. All of the above
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, ABSA 4B EXAM LATEST
The two primary classifications of steam turbines are:
1. Forced and induced
2. Impulse turbine & reaction
3. Gasoline and diesel
4. Condensers and combustors
5. Four stroke and two stroke - ANSWERS-2. Impulse turbine &
reaction
Cement may be used for the protective coating of a ____.
1. hot water storage tank
2. pressure gauges
3. orifice plates
4. venturi tubes
5. u-tube manometers - ANSWERS-1. hot water storage tank
Mechanical seals are commonly installed on pumps:
1. To eliminate the requirements for a stuffing box
2. Where leakage of the product to be pumped is unacceptable
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