Exam (elaborations)
MN SPECIAL BOILERS LICENSE PREP TEST ANSWERED #21
- Course
- Institution
MN SPECIAL BOILERS LICENSE PREP TEST ANSWERED #21
[Show more]
Seller
Follow
puritywanjihia
Content preview
MN SPECIAL BOILERS LICENSE PREP TEST ANSWERED #21Special (License Grade) - correct answer Work in any type of plant
Grade C (License Grade) - correct answer Can operate low-pressure steam or hot
water (no steam engines/turbines)
Grade B (License Grade) - correct answer Can operate high-pressure or low-pressure
steam or hot water (no steam engines/turbines)
Grade A (License Grade) - correct answer Can operate any plant including plants with
steam engines/turbines
Special (License Class) - correct answer Take Charge (max 50 hpr)
Shift Engineer (max 100 hpr)
2nd Class (License Class) - correct answer Take Charge (max 100 hpr)
Shift Engineer (max 500 hpr)
1st Class (License Class) - correct answer Take Charge (max 500 hpr)
Shift Engineer (unlimited hpr)
Chief (License Class) - correct answer Take Charge (unlimited hpr)
Shift engineer (unlimited hpr)
Shift Engineer - correct answer Can operate and take responsibility for the plant while
on duty
Take Charge - correct answer You are the main person in charge of the plant. You
supervise shift engineers.
1 boiler horsepower = - correct answer = 10 sq. Ft of heating surface
8.3 - correct answer 1 gallon of water weighs _____ pounds
10 kilowatts (for licensing) - correct answer _____ kilowatts = 1 horsepower
67,000 BTU/hr (for licensing) - correct answer __________ BTU/hr = 1 horsepower
In the boiler room - correct answer Where should a boiler license be displayed?
One BTU - correct answer What will raise one pound of water by one degree F
Check water level - correct answer When entering a steam boiler room what is the first
thing an operator should do?
, Above 15 psi, above 160 psi water, and temps above 250°F - correct answer A high
pressure boiler is classified as such when what - ?
A.S.M.E. Approved - correct answer What type of safety valve is required?
Efficiency - correct answer When operating a boiler, what is most important?
Shuts off fuel in case of low water - correct answer How does a low water fuel cut off
(LWCO) protect a boiler?
Shut off the burner when a low water condition exists. - correct answer If you cannot
determine water level what do you do?
No - correct answer Can you compress a liquid?
Cast Iron Sectional and Firebox - correct answer What boilers are low pressure only?
Push nipples and Tie Rods - correct answer What holds cast iron sections together?
At least as big as the largest incoming wire - correct answer On electric boilers, how
large should the ground wire be?
Baffle - correct answer Directs flow of combustion gasses, water, and/or steam
Passes - correct answer Amount of times the heat moves through the tubes in a fire
tube boiler
Refractory - correct answer Hard surface insulation (brick, concrete,...)
Stays - correct answer Helps keep shape and position of boiler
Tubing - correct answer Measured by Outside Diameter (OD)
Package Boiler - correct answer Comes completely assembled with its own feedwater
pumps, fuel system & draft fans
Firetube, Watertube, Cast Iron - correct answer The 3 basic types of boilers (per ASME)
are:
Pressure Controls - correct answer Steam boilers have __________ ___________ to
control burner (turn burner on and off)
Aquastat - correct answer Hydronic systems have a(n) ______________ to turn the
burner on or off
Low water cut off - correct answer What prevents thermal shock in a hydronic system?
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller puritywanjihia. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $13.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
78861 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now