Cfesa steam practice test | UPDATED Questions with
100% Verified Answers
Q1: Why will boilers corrode away
A: A result of single metal corrosion from the
Q2: around the top of the boiler?
A: oxygen sippy being cut off ti thr steel by scale
build up
Q3: How can nickel plated boilers
A: Nickel is much higher on the galvanic chart
Q4: prevent corrosion
A:
Q5: Why do you need baking soda or
A: To neutralize the acid used for deliming, and to
Q6: soda ash when deliming boilers?
A: keep the acid from remaining in pits or scratches
inside the boiler shell
Q7: How often should a boiler be
A: Depends on the rate of scale build up. But
Q8: opened and inspected?
A: minimum of twice per year.
Q9: What is the purpose of a sediment
A: Remove granular debris like fine sand and grit
Q10: filter?
A:
Q11: A charcoal or carbon filter is used
A: A charcoal filter is used to remove chlorine, taste
Q12: to do what?
,A: and odor from water.
Q13: When using charcoal filters, why is
A: Bacteria can begin to grow in the filter after the
Q14: it so critical that they be changed
A: chlorine is removed.
Q15: at regular intervals.
A:
Q16: How does a phosphate feeder
A: Phosphate produces a thin film on piping, valves,
Q17: work?
A: fitting and controls. This film keeps the hard
minerals from adhering to their surfaces.
Q18: Describe the operation of an ion
A: An ion exchange water softener passes water
Q19: exchange water softener
A: through a resin core that is impregnated with salt
as the water passes through the core, the hard
water mineral ions are collected in the core and
replaced with soft sodium ions.
Q20: What are the major disadvantages
A: RO systems are very slow to produce pure water
Q21: to reverse osmosis systems?
A: and wastes a lot of water flushing the
membrane.
Q22: How much maintenance is required
A: A lot of maintenance, including many filter
Q23: for reverse osmosis systems?
A: replacements to prevent damage to the
membrane.
, Q24: What is the function of an air vent
A: To remove air from the boiler
Q25: Can a non functional air vent keep
A: Yes, if the incoming water pressure compresses
Q26: a boiler from heating?
A: the air enough, the high pressure limit control
could keep the boiler from heating.
Q27: What is the difference between a
A: Nothing.
Q28: thermostatic steam trap and a
A:
Q29: thermostatic vent?
A:
Q30: What causes water hammer in a
A: Water hammer results when steam comes in
Q31: steam line
A: contact with the liquid condensate
Q32: What are the two primary functions
A: To remove air and condensate
Q33: of a steam trap
A:
Q34: How can air in a steam system act
A: Air trapped in a system keeps the steam from
Q35: as an insulator?
A: having direct contact with the surface and acts
as an insulator.
Q36: What is the purpose of a steam
A: To remove excess condensate from the steam
100% Verified Answers
Q1: Why will boilers corrode away
A: A result of single metal corrosion from the
Q2: around the top of the boiler?
A: oxygen sippy being cut off ti thr steel by scale
build up
Q3: How can nickel plated boilers
A: Nickel is much higher on the galvanic chart
Q4: prevent corrosion
A:
Q5: Why do you need baking soda or
A: To neutralize the acid used for deliming, and to
Q6: soda ash when deliming boilers?
A: keep the acid from remaining in pits or scratches
inside the boiler shell
Q7: How often should a boiler be
A: Depends on the rate of scale build up. But
Q8: opened and inspected?
A: minimum of twice per year.
Q9: What is the purpose of a sediment
A: Remove granular debris like fine sand and grit
Q10: filter?
A:
Q11: A charcoal or carbon filter is used
A: A charcoal filter is used to remove chlorine, taste
Q12: to do what?
,A: and odor from water.
Q13: When using charcoal filters, why is
A: Bacteria can begin to grow in the filter after the
Q14: it so critical that they be changed
A: chlorine is removed.
Q15: at regular intervals.
A:
Q16: How does a phosphate feeder
A: Phosphate produces a thin film on piping, valves,
Q17: work?
A: fitting and controls. This film keeps the hard
minerals from adhering to their surfaces.
Q18: Describe the operation of an ion
A: An ion exchange water softener passes water
Q19: exchange water softener
A: through a resin core that is impregnated with salt
as the water passes through the core, the hard
water mineral ions are collected in the core and
replaced with soft sodium ions.
Q20: What are the major disadvantages
A: RO systems are very slow to produce pure water
Q21: to reverse osmosis systems?
A: and wastes a lot of water flushing the
membrane.
Q22: How much maintenance is required
A: A lot of maintenance, including many filter
Q23: for reverse osmosis systems?
A: replacements to prevent damage to the
membrane.
, Q24: What is the function of an air vent
A: To remove air from the boiler
Q25: Can a non functional air vent keep
A: Yes, if the incoming water pressure compresses
Q26: a boiler from heating?
A: the air enough, the high pressure limit control
could keep the boiler from heating.
Q27: What is the difference between a
A: Nothing.
Q28: thermostatic steam trap and a
A:
Q29: thermostatic vent?
A:
Q30: What causes water hammer in a
A: Water hammer results when steam comes in
Q31: steam line
A: contact with the liquid condensate
Q32: What are the two primary functions
A: To remove air and condensate
Q33: of a steam trap
A:
Q34: How can air in a steam system act
A: Air trapped in a system keeps the steam from
Q35: as an insulator?
A: having direct contact with the surface and acts
as an insulator.
Q36: What is the purpose of a steam
A: To remove excess condensate from the steam
