Exam (elaborations)
Boilermaker study guide (1).
- Course
- Biology 348
- Institution
- Biology 348
Boilermaker study guide (1).
[Show more]
Seller
Follow
Content preview
Boilermaker study guidewhat is used to determine the total number of down comers required when erecting a tower? -
ANS-Material list
What are the two major hazards when opening a sealed vessel? - ANS-Pressure differential and
product
What is the storage method for oxygen and acetylene gas cylinders? - ANS-Separated, upright
and secured in a designated area
What must be obtained before beginning work in any tank or confined space? - ANS-Entry
permit
A w 8x 30 beam is 37ft.9 in. In length and weights 26 lbs/ft. What is the weight of the beam? -
ANS-982 lbs
What is the weight of an s200 x27x3500 beam? - ANS-5400.0 kg
When retubing an evaporator, what is the safest and most efficient method to hoist the tubes? -
ANS-Use a crane, lifting device and tagline
What is the main advantage of lifting with a basket hitch? - ANS-It has double the capacity of a
single vertical hitch
Which configuration is best suited to lift a vessel shell section is 5 ft in diameter and 10 ft in
length? - ANS-Double gasket hitch
Which knot is tied 5/8 in. Rope and a 1/2 in. Rope? Skeet bend - ANS-Sheet bend
What is the mean diameter ofa cylinder that is be rolled to an od of 74in. When the material
thickness is 3/4 in? - ANS-73.25in.
A tank is 40 ft. In diameter and 30 ft high. What is done when the gravel base varies by 5/8 in.?
- ANS-Complete the tank floor and the first ring, then adjust the bed to horizential level
In which part of a boiler and hand hole caps or handhole plugs located? - ANS-Header
Why are curtains aligned after being hung in the precipitators? - ANS-To insure the electrostatic
feild will operate efficiently
, How many rafters are to be installed at a chord distance of 6 ft. 3/8in. On a 40ft diameter? -
ANS-20
After installing the floor plates in a dry bottom precipitator, what is done? - ANS-Remove all
dogs and tasks
Where are steam separators located? - ANS-Inside the steam drum
When accounting for two wall weaknesses, which percentage of tube wall thinning is normal
when expanding a stainless steel or carbon steel tube? - ANS-5.00 %
Which component prevents internal washing (swirling action) in a drain nozzle on a vertical
pressure vessel? - ANS-Vortex breaker
What is the working lond limit (wll) of 1/2in. Improved plow steel wire rope? - ANS-2.0 tons
What length of plate 16mm this is required to form a cylinder with an od of 2 438 mm? -
ANS-7607 mm
What is the mean diameter of a cylinder that is to be rolled to an od of 74.in. If the material
thickness is 3/4in.? - ANS-73.25 in.
A bulk storage tank has a diameter of 80 ft. And a shell plate thickness of 1 1/8 in. What is the
inside radius to which the shell plates would be positioned? - ANS-39ft 11 7/16 in.
what is done after installing the floor plates In a dry bottom precipitator? - ANS-Remove all dogs
and tacks
What is done to temporally suspend the steam drum on a bottom supported boiler until the tack
tubes are installed and expanded? - ANS-Suspend it from a crane
The scale on a drawing is 1 in. =1ft. What is the length of the line that represents an object with
a dimension size of 18in. On the drawing? - ANS-1 1/2 in.
Which instrument is used with a Micrometer to determine precise id measurements? -
ANS-Telescoping gauge
What is the offset between cans when fitting circumferential seams on penstock sections with a
3/4 in. Difference in diameter? - ANS-3/8 in
Given no direct crane access, what is the best method for landing and securing an 8 ft by 8 ft
platform complete with grating and handrails? - ANS-Transfer load to local rigging and bolt up
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 lydiaomutho. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for CA$11.15. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
78637 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now