Seattle ROL All Possible Questions and Answers with complete solution
5 views 0 purchase
Module
Seattle ROL
Institution
Seattle ROL
According to the SMC group, #2 refrigerants are - Toxic, flammable, explosive under certain
conditions, and includes ammonia and SO.
A hermetic system is a totally enclosed refrigeration system when the - Motor and compressor are
sealed within the same system with the refrigerant.
A heat pump h...
Seattle ROL
According to the SMC group, #2 refrigerants are - Toxic, flammable, explosive under certain
conditions, and includes ammonia and SO.
A hermetic system is a totally enclosed refrigeration system when the - Motor and compressor are
sealed within the same system with the refrigerant.
A heat pump has what type of valve that redirects refrigerant flows from heating to cooling? - A
four way reversing valve
A capillary tube system responds to an overcharge by - Head pressure.
A capillary tube system responds to an undercharge by - Low suction pressure and low head
pressure.
A condenser water regulator works off the - Compressor head pressure.
A 4-way reversing valve is used to - Redirect refrigerant flows from heating to cooling in a heat
pump.
A crankcase heater is installed on a compressor to - Evaporate the refrigerant out of the oil.
A green colored cylinder is used for - R-22 refrigerants.
A light blue colored cylinder is used for - R-134a refrigerants.
A low ambient control cycles the condenser fan to - Control head pressure.
A low pressure switch can provide low charge protection by - Shutting down the system on low
pressure.
,A permanent replacement for CFC-12 is - HFC-134a.
A pressure responsive mechanism designed to automatically relieve excessive pressures. - Is a
pressure relief valve
A refrigeration system rated at 5 tons has the ability of removing - 60,000 btuh.
A rose colored cylinder is used for - R-410a refrigerants.
A rupture disk is located - On the cooler of a chiller.
A silver colored cylinder is used for - R-717.
A temporary replacement for CFC-12 is - HCFC -22.
A TXV system responds to an overcharge by - High head pressure.
A TXV system responds to an undercharge by - Low suction pressure and bubbles in the sight
glass.
A water regulator works off the - Compressor discharge pressure.
A white colored cylinder is used for - R-12.
According to the SMC group, #1 refrigerants are - Safe, non-flammable, non-explosive and
includes refrigerants like Freon and CO.
According to the SMC group, #3 refrigerants are - Very explosive and for lab use only, they include
propane and butane.
, After you have a compressor burnout and the new compressor is installed, you should then -
Evacuate, purge, replace the filter/dryer, and charge carefully.
Air in the system will cause an - Increase in head pressure.
All refrigerant technicians must be certified after - November 14, 1994.
An AXV system responds to an undercharge by - Low suction pressure and bubbles in the sight
glass.
An AXV system responds to overcharge by - High head pressure.
An electric motor and compressor built into an integral housing similar to those in home refrigerators is a
- Hermetic Compressor
An open cooling tower capacity is - Controlled by the wet bulb temperature of the air.
An orange colored cylinder is used for - R-11 refrigerants.
An orchid colored cylinder is used for - R-502 refrigerants.
Are you allowed to change the type of refrigerant in a system? - NO
Are you allowed to change the type of refrigerant in the system as a Refrigeration Operating Engineer
with the City of Seattle. - No, never.
Are you allowed to change the type of refrigerant in the system? - NO
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 PatrickKaylian. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £6.46. You're not tied to anything after your purchase.
