Are you ready for these high-pressure boiler quiz questions and answers? Play this quiz, then. Many different industries use high-pressure boilers for central heating systems and many other applications. The water in boilers is used to produce steam which generates energy for other processes. High-pressure boilers require specialized care to operate. Do you think you have what it takes to operate them and understand their use? Take up this test to find out!
Accomadate all the steam riser tubes
Separate the water from the steam
Accommodate a steam separator
Keep the steam pressure down
Blanket insulation
Metal cladding
Refractory
Water
Allow a larger steam generating capacity
Reduce the size of the feedwater supply line
Reduce the size of the stack
Reduce building costs
1
2
3
4
145.03 PSI
72.51 PSI
362.5 PSI
14.69 PSI
The first cost is relatively high
Cleaning and inspection can be difficult
It is not very compact
It has a low heat transfer efficiency
Very high capacity electric generation
Marine service
Building heating service
Railway service
Locomotive boiler
Scotch marine boiler
HRT BOILER
Packaged boiler
122 deg f
392 deg f
347 deg f
200 deg f
Diameter of tubes
Number of tube passes
Thinner-walled tubes
Boiler feed water temp.
Are always smaller than firetubes
Can be of various straight for bent configurations
Are always straight
Require pumps for circulation
Firebox
Economizer
Air preheater
Drum
An induced draft fan is incorporated
An economizer is used
Smokestacks are made taller
A steel casing forms a seal for the furnace
Ceiling height requirements
Excessive vibration
Refractory maintenance for the external furnace
Poor water circulation
The very short warm-up period required
Bent or coil tube design avoids thermal stress
Rapid response to fluctuating loads
Lower initial costs
They are not very compact
Vibrator requires special footings
Input energy cost is high
Energy transfer efficiency is low
25,000
16,000
1000
50,000
The voltage supplied to the elements
Level of water in the basket
Number of heating elements engaged
Number of baffles
Thermostat
Water pump
Basket
Low water cutoff
1300 hp
1700 hp
6700 hp
2700 hp
Feedwater pump
Fuel supply
Number of heating elements
Power supply
Minimum
Maximum
Most
Super
Upper
Lower
Tertiary
After
Strong
Thin
Weak
Thick
Shacking
Leveling
Turning
Moving
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