Exam (elaborations)
BOMA-HVAC QUESTUIONS WITH CORRECT ANSWERS
- Course
- Institution
Exam of 6 pages for the course BOMA at BOMA (BOMA-HVAC)
[Show more]
Content preview
BOMA-HVACThe man whose work is considered the real beginning of the science of air-conditioning
_____. - answerWillis Carrier
Psychrometry refers to the relationship between _____ and _____. - answerHumidity;
air
The amount of moisture in the air compared to how much it can hold is _____. -
answerRelative humidity
The human bodies well being depends upon the _____. - answerBodies metabolism
The device used to determine the moisture content of air is the _____ -
answerpsychrometer
Of the fuels listed the one that is the most efficient is _____. - answerGas
The effective temperature takes into consideration the effect of _____ and _____. -
answerHumidity; temperature
Air conditioning is the control of the _____, _____, _____ and _____. -
answerTemperature, humidity, purity and distribution of air.
The element that makes up the greatest percentage by volume of air is _____. -
answerNitrogen
Steam gives off a great amount of heat because of its _____. - answerSpecific heat
The velocity of air moving thru a fan system is expressed in _____. - answerFeet per
minute
What volume of air will move thru a duct 24x18 at velocity of 450 feet per minute? -
answer1350 cfm
The following types of fans are classified as centrifugal fans. - answerForward curved,
radial and backward curved
, Select the statement that does not apply to backward inclined fans. - answerHas an
overloading BHP horse power curve.
The quantity of air moving thru a fan system is expressed in _____. - answerCubic feet
per minute
The instrument used to measure air pressure in duct is the _____. - answerMonometer
Air flow thru a duct has the highest _____. - answerVelocity near the center of the duct.
Select the statement which does not apply to the fan laws. - answerStatic pressure in a
duct increases as the velocity decreases.
Variable air volume system feature is _____. - answerVaries the volume of air with
space temperature conditions
Double duct systems are _____. - answer?
The purpose of a primary control is to _____. - answerStart or stop the system
A pressurestat responds to _____. - answerSystem pressure
The oil safety switch is operated by _____. Oil pressure - answer
A low limit control _____. - answer?
A high limit control _____. - answer?
Limit controls _____. - answerAre wired into the circuit in series
A diulating switch is used to _____. - answerChange proportional action to two position
control.
A ratio relay is used to _____. - answerProvide sequence control of more than one
actuator.
A proportional control: - answerWhere a movement from the set point produces a
proportional movement of the actuator
A three way diverting valve: - answerhas two outlets and one common inlet
Heat will continue to flow between two bodies until they have the same amount of
_____. - answerSensible heat
Heat which causes a change of state is _____. - answerLatent heat
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 $16.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
75391 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now