High Pressure Boiler Quiz Questions And Answers
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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!
- 1.The steam space of a boiler must be large enough to?
- A.
Accomadate all the steam riser tubes
- B.
Separate the water from the steam
- C.
Accommodate a steam separator
- D.
Keep the steam pressure down
- 2.All parts of the boiler exposed to fire or flue gases must be covered by?
- A.
Blanket insulation
- B.
Metal cladding
- C.
Refractory
- D.
Water
- 3.A steam boiler should be compact in design in order to:
- A.
Allow a larger steam generating capacity
- B.
Reduce the size of the feedwater supply line
- C.
Reduce the size of the stack
- D.
Reduce building costs
- 4.Power boilers usually require ______ blowdown valves.
- A.
1
- B.
2
- C.
3
- D.
4
- 5.High-pressure boilers operate at pressures above:
- A.
145.03 PSI
- B.
72.51 PSI
- C.
362.5 PSI
- D.
14.69 PSI
- 6.What is a major disadvantage of a firebox boiler?
- A.
The first cost is relatively high
- B.
Cleaning and inspection can be difficult
- C.
It is not very compact
- D.
It has a low heat transfer efficiency
- 7.For what use was the wetback scotch back boiler primarily designed for?
- A.
Very high capacity electric generation
- B.
Marine service
- C.
Building heating service
- D.
Railway service
- 8.What type of boiler is built and ready for installation?
- A.
Locomotive boiler
- B.
Scotch marine boiler
- C.
HRT BOILER
- D.
Packaged boiler
- 9.Hot water supply boilers are not considered to be heating boilers unless the operating temperature exceeds:
- A.
122 deg f
- B.
392 deg f
- C.
347 deg f
- D.
200 deg f
- 10.What is increased to augment the heat transfer capability in a fire tube boiler?
- A.
Diameter of tubes
- B.
Number of tube passes
- C.
Thinner-walled tubes
- D.
Boiler feed water temp.
- 11.High-pressure water tubes:
- A.
Are always smaller than firetubes
- B.
Can be of various straight for bent configurations
- C.
Are always straight
- D.
Require pumps for circulation
- 12.The bent tube boiler design allows the tubes to be attached radially on the outside of the?
- A.
Firebox
- B.
Economizer
- C.
Air preheater
- D.
Drum
- 13.Since furnace pressure is often positive in a positive in a packaged water tube boiler, to prevent flue gas leakage:
- A.
An induced draft fan is incorporated
- B.
An economizer is used
- C.
Smokestacks are made taller
- D.
A steel casing forms a seal for the furnace
- 14.A problem with a D-type water tube packaged boiler is?
- A.
Ceiling height requirements
- B.
Excessive vibration
- C.
Refractory maintenance for the external furnace
- D.
Poor water circulation
- 15.Which of the following is not an advantage for the low-pressure water tube and tubular type boilers?
- A.
The very short warm-up period required
- B.
Bent or coil tube design avoids thermal stress
- C.
Rapid response to fluctuating loads
- D.
Lower initial costs
- 16.The main disadvantage of an electric boiler is that:
- A.
They are not very compact
- B.
Vibrator requires special footings
- C.
Input energy cost is high
- D.
Energy transfer efficiency is low
- 17.The operating voltage for an electrode-type boiler can be as high as _____ volts.
- A.
25,000
- B.
16,000
- C.
1000
- D.
50,000
- 18.The amount of steam produced by an electrode-type boiler depends on the?
- A.
The voltage supplied to the elements
- B.
Level of water in the basket
- C.
Number of heating elements engaged
- D.
Number of baffles
- 19.A ______ is not required on an electrode-type electric boiler.
- A.
Thermostat
- B.
Water pump
- C.
Basket
- D.
Low water cutoff
- 20.An immersion electric boiler capacity can be as high as:
- A.
1300 hp
- B.
1700 hp
- C.
6700 hp
- D.
2700 hp
- 21.Control of the immersion heater boiler is done by turning on and off the:
- A.
Feedwater pump
- B.
Fuel supply
- C.
Number of heating elements
- D.
Power supply
- 22.The reason for the use of steam is to allow the maximum quantity of heat to be put into well with the _______quantity of injected fluid.
- A.
Minimum
- B.
Maximum
- C.
Most
- D.
Super
- 23.Combustion air is fed at three elevations of the furnace primary secondary and __________
- A.
Upper
- B.
Lower
- C.
Tertiary
- D.
After
- 24.If the black liquior is too __________ it could result in an explosion.
- A.
Strong
- B.
Thin
- C.
Weak
- D.
Thick
- 25.The vibration also serves to aid combustion by _________ out the bed fo burning biomass.
- A.
Shacking
- B.
Leveling
- C.
Turning
- D.
Moving
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