The type of water treatment boilers use that operate above 5000kPa is?
a. Sodium zeolite softening
b. Deaeration
c. Coagulators
d. Demineralization
e. Sludge conditioning
Answer: D
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Power Engineering Chapter 63
- When the blowdown line has two seatless slow opening valves, what is the sequence in opening them?
- Which code specifies the type of valves that can be used for particular boilers?
- Which code specifies the materials, pressure ratings and required sizes for blowdown piping?
- Blow-off piping must be made to expand and contract during temperature changes. If not it could cause?
- Which code requires the installation of a blow-off vessel or other suitable registered device for all boilers operating above 103kPa, if the vessel discharges into the sewer system?
- The greatest concentration of undissolved solids in a package watertube boiler is at __ and for firetube boilers is at __
- Another term for intermittent blowdown is?
- Hot blowdown water flows from the boiler through the CBD line to the __
- TDS:
- Continuous blowdown rate depends on?
- TDS stands for?
- The type of water treatment boilers use that operate below 5000kPa is?
- The boiler blowoff valves are opened and closed in a specific sequence to:
- A blowoff tank:
- The blowoff connection on a boiler is located at the:
- Water that leaves a blowoff tank and enters a sewer must not exceed _______ °C:
- If dissolved solids are not removed from boiler water, the result may be:
- On a boiler blowoff system, a valve that requires at least five 360° turns of the operating mechanism to change from fully open to fully closed is known as:
- An external water treatment method that results in minimal boiler blowdown is:
- When the intermittent blow off valves on a boiler are both seatless, the correct operating sequence is to open the:
- A boiler's continuous blowdown is used:
- A "rule of thumb" for continuous blowdown rate is approximately:
- Boiler water having the highest dissolved solids concentration is found:
- The operator, while blowing off a boiler, should have an assistant to: