Ohio stationary steam engineer
2 forces of equal depth performing in contrary instructions is? - ANS-anxiety
A boiler has been below stress for an prolonged time frame with excessive alakalinity attention
maintained inside the water. This can reason? - ANS-caustic embrittlement
A boiler has carried a big slug of water over into steam. This circumstance is called: -
ANS-priming
A boiler is an business boiler when - ANS-the steam generated is used for method
A boiler is industrial when: - ANS-The steam is used for a production technique
A centrifugal pump is characterised by using its: - ANS-diffusion rings
a centrifugal pumps overall performance and lengthy existence rely on: - ANS-wear jewelry and
thrust imposed
A distinction among a take a look at valve and a non-go back valve is: - ANS-a non-return valve
acts as a "cushioning" valve that facilitates save you chattering
A flame scanner containing a lead sulfide cell is sensitive to - ANS-Infrared radiation
A gauge that reads better than real boiler pressure is called a: - ANS-speedy gauge
A excessive-viscosity lubricant is more likely to broaden ______ than a low-viscosity oil? -
ANS-Heat
A lubrication with low viscosity is normally: - ANS-adapted to high RPM use
A motor-pushed mechanical centrifuge is used for? - ANS-reconditioning turbine oil
A steam turbine operates at 4500 RM. At what velocity must the trip be set? - ANS-4950 (10%
over everyday operation speed)
A steam turbine that operates at 500 psi is considered? - ANS-high strain
A unexpected increase within the temp of the flue gases getting into the stack from the
breeching might likely suggest: - ANS-a damaged flue gas baffle
,A superheater protection valve relieves how tons of the total steam produced by way of the
boiler? - ANS-20%
A therm of natural gasoline is_____ - ANS-one hundred,000 BTU reguarless of the exact
quantity
A thermostatic steam lure opens below what conditions? - ANS-When the temp within the entice
lowers
A turbine exhausts steam @ 15 psi. This steam is utilized in a low-strain utility which include a
deareator. This form of turbine is referred to as a: - ANS-lower back-pressure turbine
A sort of pump that makes use of the rate of steam towards a mass of water is a : - ANS-injector
A wet scrubber that has been maintained properly has the capablility of soaking up ____% of
SO2 in flue gases - ANS-90%
including water to growth combustion in a coal fired boiler is known as: - ANS-tempering
All of the subsequent are causes of vibration in a turbine EXCEPT:
-priming from boiler
-misalignment of the turbine shaft
-condenser cooling water too warm
-passing via essential velocity - ANS-condenser cooling water too heat
An impulse turbine utilizes one row of desk bound nozzles which increase the speed of the
steam sufficient to drive 2 rows of rotating blades. This type of turbine is called a: -
ANS-Velocity-compound turbine
At what temp does a fusible plug melt? - ANS-450 degrees
At what temp must you upload cooling water to a mills bearings? - ANS-a hundred and ten-120
degrees
Before dumping a boiler, which conditon should be met? - ANS-the boiler metallic ought to be
cool sufficient to touch contunually
Blowdown (blowback) of a safety valve need to not be much less than ____psi anyhow -
ANS-2psi
Blowdown (blowback) of a protection valve should now not be more than ____% anyhow -
ANS-four%
, Boilers laid up dry, have what fabric located internal to absorb moisture? - ANS-Quicklime or
silica gel
Calcium and magnesium are eliminated with the aid of what outside water treatment system that
may be regenerated using sodium chloride? - ANS-zeolite softener
Cast iron or ductile iron pipe is used for: - ANS-underground water supply and drainage
Combustion performance can be extended by_____ the number one air - ANS-Preheating
Considering the obstacle on substances of construction of a steam turbine, what is the
maximum temp steam that can be used - ANS-1100 stages (can also be 1050)
Copper and brass piping can be used for piping systems so long as the temp does now not
exceed - ANS-406 degrees
Diffusion rings are observed in: - ANS-turbine fashion centrifugal pumps
Down comer tubes are used in watertube boilers for what reason - ANS-supply water to the
decrease waterwall headers
During the start-up of a massive steam turbine, the rate is step by step improved so that the
working speed can be reached. The turbine operates easily, but at a specific RPM range, a
significant vibration is encountered. What should the operator do? - ANS-Increase the speed to
get via the RPM range as quick as possible
For most performance what's true approximately superheated steam? - ANS-a consistent
superheated steam temp is ideal
For safety valves set to pop at 100-three hundred psi blowdown must now not be less than
____% of popping preassur - ANS-2%
For what is the ringlemann take a look at used? - ANS-measure smoke density leaving the
stack
For what motive are manometers? - ANS-measuring flue gas and combustion air pressures
Fuel oil with low flash factor is: - ANS-more hazardous than fuel oil with high flash point
Grindability of coal is an problem to be considered when running which kid of coal-burining
system? - ANS-ball-and-race pulvarizer
How are fuel oil strainers typically configured? - ANS-one strainer at the suction side of the
pump and every other just earlier than the burner
2 forces of equal depth performing in contrary instructions is? - ANS-anxiety
A boiler has been below stress for an prolonged time frame with excessive alakalinity attention
maintained inside the water. This can reason? - ANS-caustic embrittlement
A boiler has carried a big slug of water over into steam. This circumstance is called: -
ANS-priming
A boiler is an business boiler when - ANS-the steam generated is used for method
A boiler is industrial when: - ANS-The steam is used for a production technique
A centrifugal pump is characterised by using its: - ANS-diffusion rings
a centrifugal pumps overall performance and lengthy existence rely on: - ANS-wear jewelry and
thrust imposed
A distinction among a take a look at valve and a non-go back valve is: - ANS-a non-return valve
acts as a "cushioning" valve that facilitates save you chattering
A flame scanner containing a lead sulfide cell is sensitive to - ANS-Infrared radiation
A gauge that reads better than real boiler pressure is called a: - ANS-speedy gauge
A excessive-viscosity lubricant is more likely to broaden ______ than a low-viscosity oil? -
ANS-Heat
A lubrication with low viscosity is normally: - ANS-adapted to high RPM use
A motor-pushed mechanical centrifuge is used for? - ANS-reconditioning turbine oil
A steam turbine operates at 4500 RM. At what velocity must the trip be set? - ANS-4950 (10%
over everyday operation speed)
A steam turbine that operates at 500 psi is considered? - ANS-high strain
A unexpected increase within the temp of the flue gases getting into the stack from the
breeching might likely suggest: - ANS-a damaged flue gas baffle
,A superheater protection valve relieves how tons of the total steam produced by way of the
boiler? - ANS-20%
A therm of natural gasoline is_____ - ANS-one hundred,000 BTU reguarless of the exact
quantity
A thermostatic steam lure opens below what conditions? - ANS-When the temp within the entice
lowers
A turbine exhausts steam @ 15 psi. This steam is utilized in a low-strain utility which include a
deareator. This form of turbine is referred to as a: - ANS-lower back-pressure turbine
A sort of pump that makes use of the rate of steam towards a mass of water is a : - ANS-injector
A wet scrubber that has been maintained properly has the capablility of soaking up ____% of
SO2 in flue gases - ANS-90%
including water to growth combustion in a coal fired boiler is known as: - ANS-tempering
All of the subsequent are causes of vibration in a turbine EXCEPT:
-priming from boiler
-misalignment of the turbine shaft
-condenser cooling water too warm
-passing via essential velocity - ANS-condenser cooling water too heat
An impulse turbine utilizes one row of desk bound nozzles which increase the speed of the
steam sufficient to drive 2 rows of rotating blades. This type of turbine is called a: -
ANS-Velocity-compound turbine
At what temp does a fusible plug melt? - ANS-450 degrees
At what temp must you upload cooling water to a mills bearings? - ANS-a hundred and ten-120
degrees
Before dumping a boiler, which conditon should be met? - ANS-the boiler metallic ought to be
cool sufficient to touch contunually
Blowdown (blowback) of a safety valve need to not be much less than ____psi anyhow -
ANS-2psi
Blowdown (blowback) of a protection valve should now not be more than ____% anyhow -
ANS-four%
, Boilers laid up dry, have what fabric located internal to absorb moisture? - ANS-Quicklime or
silica gel
Calcium and magnesium are eliminated with the aid of what outside water treatment system that
may be regenerated using sodium chloride? - ANS-zeolite softener
Cast iron or ductile iron pipe is used for: - ANS-underground water supply and drainage
Combustion performance can be extended by_____ the number one air - ANS-Preheating
Considering the obstacle on substances of construction of a steam turbine, what is the
maximum temp steam that can be used - ANS-1100 stages (can also be 1050)
Copper and brass piping can be used for piping systems so long as the temp does now not
exceed - ANS-406 degrees
Diffusion rings are observed in: - ANS-turbine fashion centrifugal pumps
Down comer tubes are used in watertube boilers for what reason - ANS-supply water to the
decrease waterwall headers
During the start-up of a massive steam turbine, the rate is step by step improved so that the
working speed can be reached. The turbine operates easily, but at a specific RPM range, a
significant vibration is encountered. What should the operator do? - ANS-Increase the speed to
get via the RPM range as quick as possible
For most performance what's true approximately superheated steam? - ANS-a consistent
superheated steam temp is ideal
For safety valves set to pop at 100-three hundred psi blowdown must now not be less than
____% of popping preassur - ANS-2%
For what is the ringlemann take a look at used? - ANS-measure smoke density leaving the
stack
For what motive are manometers? - ANS-measuring flue gas and combustion air pressures
Fuel oil with low flash factor is: - ANS-more hazardous than fuel oil with high flash point
Grindability of coal is an problem to be considered when running which kid of coal-burining
system? - ANS-ball-and-race pulvarizer
How are fuel oil strainers typically configured? - ANS-one strainer at the suction side of the
pump and every other just earlier than the burner
