Exam (elaborations)
General Maintenance- boma Questions and Answers
- Course
- Institution
General Maintenance- boma
[Show more]
Content preview
General Maintenance- bomaWhen Starting a centrifugal pump That is part of a manifold with no check valves -
answerYou should open the suction valve, start the pump and open the discharge valve
slowly
Curb cock - answerA Valve insert it in a water line between the corporation stop and the
water meter is generally called
To check sheave wear - answerMeasure each groove angle
Variable pitch sheaves may be used in some cases to provide which of the following
types of speech changes - answerSmall
Absolute pressure is Gauge - answerPressure plus 14.7 psi
Which of the following best describes the basic types of sprinkler systems in a building -
answerStandard wet type system, Standard dry type system, deluge system ( all of the
above)
Power equals - answerForce times distance divided by time
Torches should be inspected for leakage at the - answerTip, valves, hose connections
all of the above
Smoke detection is usually accomplish by using either photo electric scanning,
ionization chambers or smoke deflection devices? - answerTrue
If a coupling is not properly aligned - answerIt will almost certainly fail more quickly than
his should & it could wear out equipment bearings A&C
To protect a pump and motor against slight misalignment, they are often connected by a
- answerFlexible coupling
The coding on a metallic electrode - answerStabilizes the arc and controls oxidation
When severing a length of 2 inch pipe it is preferable to use - answerA pipe cutter
What is the main purpose of the emergency electrical power system - answerRun
equipment essential to human life for safety
, Baffles in a greased interceptor reduce____________ within interceptor -
answerTurbulence
Parallel alignment is - answerWhere the centerline of the two shafts are parallel
Usually if the motor in the system feels hot and you think this is overloading, you should
not open the flow valve further because - answerIncrease flow will usually increase
horse power requirements
Which of the following alarms will start a diesel fire pump - answerWaterflow alarm
What term best describes water use for both drinking and cooking - answerPotable
Gate valves - answerHave less pressure dropped than most other kinds of valves, Are
available to quick opening models A&B
Critical points of a grease interceptor or elevations of the__________ and _________ in
to the water - answerInlet: outlet
One of the most positive means of preventing back siphonage is the proper use of an -
answerAir gap
One cubic foot of water is how many gallons? - answer7.48
A well used to fill a corner, as in a lap joint or a T joint, is called - answerFillet weld
Grease are classified as their mobility and oil content by the - answerS.A.E
Continual problems with Belt turnover are likely to be caused by - answerImproper
installation technique
The scale of a working drawing can be determined by - answerThis scale will be
indicated on the drawings
A _________ is a direct or in direct connection Which may permit waste sewage or
other non-potable water to flow into a potable water source or supply - answerCross
connection
Traps are installed to prevent_________ from entering the structure - answerSewer
gas, offensive odors, vermin (all of the above)
The main purpose of lubrication usually is to - answerReduce friction and wear
When installing a P-trap, the vertical distance from the fixture to the__________ may
not exceed 24" - answerTrap outlet
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 julianah420. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $14.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
81113 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now