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1. What is the standard size of a sprinkler head? - Correct Answer: 1/2
inch
2. Sprinkler heads are always open on what system? - Correct Answer:
Deluge system
3. On an ash handling system of a coal fired boiler, the periodic removal of ash
is: - Correct Answer: Intermittent
4. The quality of steam refers to what? - Correct Answer: How dry the
steam is
5. What is the minimum size of a blowoff line from a boiler over 100FT? -
Correct Answer: 1 Inch
,6. The largest heat exchanger in a condensing steam plant is the: - Correct
Answer: Condenser
7. To prevent misting in the steam, boiler steam drums are equipped with
what? - Correct Answer: Steam separators
8. What principle does a steam injector operate on? - Correct Answer:
Venturi principle
9. A steam boiler must have two means of feedwater make-up if over how
many FT? - Correct Answer: 500 SQ FT
10.What is the name of the device that controls super-heated steam
temperature? - Correct Answer: Attemperator
11.What is the last heating device before feedwater enters the boiler? -
Correct Answer: Economizer
12.Name two types of superheaters. - Correct Answer: Convection/Radiant
13.What type of boiler cannot handle large changes in load? - Correct
Answer: Firetube
14.Which is the most common type of heat exchanger? - Correct Answer:
Tube and shell
,15.The exhaust steam line from a turbine requires what to clean steam? -
Correct Answer: Oil separator
16.Class 1 standpipes can be used by who? - Correct Answer: Trained
professionals
17.The requirements set out for standpipe systems are found in: - Correct
Answer: NFPA #25
18.What prevents a boiler from collapsing when being dumped? - Correct
Answer: A manual air vent
19.In a steam plant what component uses HP exhaust steam? - Correct
Answer: Feedwater heaters
20.What does a skimmer do in the steam drum? - Correct Answer: Rids
condensate of suspended particles and oil
21.The two valves on a boiler blow off are typically what type? - Correct
Answer: Quick opening and angle globe
22.A piping system must be registered with ABSA if over what volume? -
Correct Answer: 5 cubic meters
, 23.What devices clean the fire side of a water tube HP steam boiler? -
Correct Answer: Soot blower
24.HTHW generators differ from water tube boilers in what way? - Correct
Answer: No steam drum in generator
25.HTHW boiler construction is governed under: - Correct Answer: ASME
section 1
26.Coal ground into a fine powder is called what? - Correct Answer:
Pulverized
27.What is the duct between a boiler and the stack? - Correct Answer:
Breeching
28.What is the minimum size of feedwater line on a boiler over 100FT? -
Correct Answer: 3/4 Inch
29.What must be done to a horizontal discharge pipe from a PSV? - Correct
Answer: Slash it at 45 degrees
30.A deaerator must be how high above the feedwater pump? - Correct
Answer: 30FT