1st Class Stationary Engineers Examination
#2 (False questions omitted) Exam
Questions with Correct Answers
All Boilers should be viewed as - Answer - Dangerous regardless of size and pressure
One cubic inch of hot water under pressure expands to - Answer - almost one cubic foot of steam at
atmospheric pressure
Primary air is usually... - Answer - Blown into the combustion chamber, along with the fuel on a gas or
oil burner.
Heat always flows from ____ to ____ - Answer - hot to cold
An accumulation test is used to determine - Answer - the relieving capacity of a safety valve
Staging is a method used to - Answer - increase the pressure of a gas or liquid in step rather than all at
once.
All vacuum return heating systems require - Answer - traps
Boiler water can be conditioned by - Answer - heating addition of chemicals and by blow down
Water which contains scale-forming impurities is termed - Answer - hard water
33,478 BTUs equal - Answer - One boiler horsepower
One purpose of automatic control is to insure - Answer - the safe operation of a system
Is it possible to find all three types of heat transfer working at the same time? - Answer - Yes
A vapor can best be defined as a - Answer - physical state between a liquid and a gas
a firetube contains - Answer - the products of combustion
a pigtail is used on a steam gauge connection to - Answer - prevent damage to the gauge
a convection type superheater - Answer - absorbs its heat from the hot gases of combustion
All residential air conditioners use - Answer - Freon
A hydrostatic test is a test for - Answer - the tightness of boiler drums and tubes
, One of the most important aspects of a boiler plant is the - Answer - Boiler supply
One BTU will raise the temperature of one pound of water by - Answer - one degree fahrenheit
Steam and water can be found - Answer - at the same temperature in a boiler
Superheated steam is always - Answer - Dry
at sea level, water boils at - Answer - 212 Degrees F
Larger pipe sizes are found on - Answer - One pipe systems
the explosion hazard in a oil-fired boiler is usually greatest when - Answer - Lighting off
A good over the fire draft in a natural draft furnace should be approximately - Answer - .05 inches of
water negative pressure
A compound gage is calibrated to read - Answer - Vacuum and pressure
An ammeter is always connected to an electric circuit in - Answer - Series with a shunt
A two-stage air compressor contains - Answer - 2 Cylinders
The heating surface of a tube in an HRT boiler is located - Answer - On the Outside
The type of brace most commonly used in an HRT Boiler above the tubes is a - Answer - Diagonal stay
Incomplete combustion in a boiler furnace is most often caused by - Answer - Insufficient amount of air
The tensile strength of a boilerplate is - Answer - 55,000
Special types of fittings are used to take up the expansion in steam lines. One of these fitting is - Answer
- Expansion joints
Which of the following is not an important consideration when burning coal? - Answer - The purge
cycle of the burner
Viscosity can best be described as an oil's ability to - Answer - Be Pumped.
Heat transfer occurs in liquids and gases by means of - Answer - Convection
A boiler pressure gauge gives readings in - Answer - Gauge pressure
When water has absorbed as much heat as it can hold, it reached its - Answer - saturation point
Which of the following elements causes boiler corrosion? Helium, Oxygen, Hydrogen, Nitrogen - Answer
- Oxygen
One example of a positive displacement pump is a - Answer - Reciprocating pump
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 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 Wisdoms. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £7.18. You're not tied to anything after your purchase.
