Ultimate Steam Boiler Trivia Quiz! Exam
(60).jpg "Ultimate Steam Boiler Trivia Quiz! Exam - Quiz")
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- 1.Water begins to boil at approximately ______ degrees F.
- A.
0
- B.
32
- C.
100
- D.
212
- 2.A low pressure boiler has a MAWP up to ______ psi.
- A.
5
- B.
6
- C.
15
- D.
75
- 3.Sensible heat:
- A.
Involves a change of state
- B.
Has no temperature change of the substance
- C.
Changes ice to water
- D.
Can be measured with a thermometer
- 4.________ air that controls the combustion rate, which determines the amount of fuel burned.
- A.
Excess
- B.
Primary
- C.
Secondary
- D.
Pilot
- 5.The amount of energy required to aise the temperature of 1 lb of water one degree F is one _____.
- A.
NOWL
- B.
Therm
- C.
Psia
- D.
Btu
- 6.Latent heat:
- A.
Involves a change of state and no temperature change
- B.
Raises the temperature of a substance
- C.
Occurs only with sensible heate
- D.
Can be measured with a thermometer
- 7.The evaporation of 34.5 lb of water per hour from a feedwater temperature of 212 degree F is:
- A.
Factor of evaporation
- B.
One boiler horsepower
- C.
Latent heat of fusion
- D.
Evaporation test
- 8.The _________ regulates the burner from high to low fire.
- A.
Aquastat
- B.
Vaporstat
- C.
Pressure control
- D.
Modulating pressure control
- 9.When blowing down a boiler, the quick-opening valve shuld always be opened and closed:
- A.
First; first
- B.
First; last
- C.
Last; first
- D.
Last;last
- 10.The prupose of the safety valve is to prevent the pressure in the boiler from ___________.
- A.
Exceeding its MAWP
- B.
Dropping below its MAWP
- C.
Causing a boiler explosion
- D.
Relieving water pressure
- 11.A _______ valve allows the flow of water in one direction only?
- A.
Gate
- B.
Glove
- C.
Os&y
- D.
Check
- 12.A _______ test is a low water fuel cutoff test that allows the water level in the boiler to drop by shutting the feedwater pump off.
- A.
Hydrostatic
- B.
Pressure
- C.
Try lever
- D.
Evaporation
- 13.The ________ controls the startinng and stopping of the burner by sensing the temperature in teh hot water boiler.
- A.
Flow control valve
- B.
Diverter fitting
- C.
Circulating pump
- D.
Aquastat
- 14.Condensate in teh steam lines can result in:
- A.
Greater boiler efficiency
- B.
Pure steam produced
- C.
Foaming
- D.
Water hammer
- 15.When an os&y valve is open, the steam is in the position ___________.
- A.
Floating
- B.
Locked
- C.
Up
- D.
Down
- 16.Combustion is the __________ burning of all the fuel using the minimum amount of excess air.
- A.
Incomplete
- B.
Complete
- C.
Perfect
- D.
Imperfect
- 17.A __________ automatic combustion control is most commonly used on low pressure boilers.
- A.
ON/OFF
- B.
Positioning
- C.
Metering
- D.
Conbination
- 18.A therm is equivalent to _______ Btu.
- A.
100,000
- B.
150,000
- C.
500,000
- D.
1,000,000
- 19.When the teperature of fuel oil is raised its viscosity:
- A.
Remains the same
- B.
Is raised
- C.
Is lowered
- D.
Cannot be affected by heat
- 20._________ draft air that is pulled through the boiler (fan in breeching).
- A.
Induced
- B.
Forced
- C.
Combination
- D.
Natural
- 21.Draft gauge measurements are expressed in inches of:
- A.
Mercury
- B.
Water column
- C.
Saturated steam
- D.
All of the above
- 22.A _______ is a simple draft gauge consisting of a U-shaped glass tube.
- A.
Pyrometer
- B.
Dynometer
- C.
Manometer
- D.
Trynometer
- 23.Water that contains large quantities of minerals is called _______.
- A.
Soft water
- B.
Hard water
- C.
Sludge
- D.
Sediment
- 24.________ is a condition caused when steam bubbles are trapped below the boiler water surface.
- A.
Sludge slugging
- B.
Foaming
- C.
Priming
- D.
Tube corrosion
- 25.In the boiler water __________ causes corrosion and pitting of the boiler metal.
- A.
Sodium solfite
- B.
Sodium solfate
- C.
Carbon dioxide
- D.
Oxygen
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