100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
Previously searched by you
Previously searched by you
logo
FDNY Z51 RMO Set Test Questions And Verified Correct Solutions | Updated $16.34
Add to cart
Quickly navigate to
Preview
  2.  
  3. FDNY Z51
  4.  
  5. FDNY Z51

Exam (elaborations)

FDNY Z51 RMO Set Test Questions And Verified Correct Solutions | Updated
 0 purchase
  • Course
  • FDNY Z51
  • Institution
  • FDNY Z51

FDNY Z51 RMO Set Test Questions And Verified Correct Solutions | Updated . What can a clogged pump strainer cause? - ANSWER : A reduction or loss in water flow which will lead to high condenser head pressure. What part of the Refrigeration system is the solenoid valve part of? - ANSWER ...

[Show more]

Preview 4 out of 54  pages

Document information

  • August 1, 2024
  • 54
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

Subjects

  • fdny z51 rmo
  • fdny z51 rmo set test questions and verified corre

Written for

  • FDNY Z51
  • FDNY Z51

Seller

avatar-seller
EWLindy

Reviews received

Content preview

FDNY Z51 RMO Set Test Questions And Verified Correct Solutions | Updated . What can a clogged pump strainer cause? - ANSWER ✔ : A reduction or loss in water flow which will lead to high condenser head pressure. What part of the Refrigeration system is the solenoid valve part of? - ANSWER ✔ : The pum p down cycle (Thermostat - Solenoid Valve - Low Pressure Controller). What is the proper machine start up procedure? - ANSWER ✔ : Check oil, start chilled water pump, start condenser water pump, start tower fans and start up machine. How does a rec iprocating machine cycle compressors on and off? - ANSWER ✔ : Through the use of the low pressure control. What refrigerant has the best Refrigeration effect and highest latent heat? - ANSWER ✔ : Ammonia (R -717) / ASHRE Classification is B2. What is the leaving water temperature of an induced draft cooling tower that is operating efficiently? - ANSWER ✔ : At some temperature between the dry and wet bulb temperature. What could a sudden reduction in the supply flow of the cooling tower water result in? - ANSWER ✔ : An increase in head pressure. How do reciprocating compressor unloaders operate? - ANSWER ✔ : By keeping the compressor suction valves open. Which side of the compressor is R -22 vapor charged into? - ANSWER ✔ : The suction side. What should the percentage of lubricant circulated through a well designed system be? - ANSWER ✔ : Lubricant should not exceed 10%. What is oil foaming in the comp ressor a result of? - ANSWER ✔ : Liquid refrigerant in the crankcase. What is the main reason for installing an oil separator on the discharge line? - ANSWER ✔ : To return oil back to the compressor crank case. What causes the foaming of oil in a reciprocating compressor using the splash system for lubrication? - ANSWER ✔ : A rapid decrease in pressure. What is the purpose of oil in a refrigerant compressor? - ANSWER ✔ : It reduces ware and friction. What is a filter dryer used to remove ? - ANSWER ✔ : Moisture, particles and contaminants. Where in a refrigeration system is the oil separator located? - ANSWER ✔ : On the discharge line as far from the compressor as possible. If a motor has 4 belts and 1 of the 4 belts are worn, ho w many belts should be replaced? - ANSWER ✔ : All of the belts should be replaced. Does a solenoid valve vary or control the flow of refrigerant? - ANSWER ✔ : No. What accessory meters and controls the flow of refrigerant into the evaporator? - ANSWER ✔ : The TEV (Metering Device). What will occur if you use an automatic expansion valve with a variable load? - ANSWER ✔ : You will starve the evaporator. What does an automatic expansion valve do? - ANSWER ✔ : It maintains a constant evap orator pressure. What could cause the evaporator to not respond to the adjustments of the TEV? - ANSWER ✔ : Oil logged on the low side. What can non -condensible's cause? - ANSWER ✔ : High head pressure. When will compressor motor horsepower increase? - ANSWER ✔ : It will increase as the head pressure increases. When will compressor motor horsepower decrease? - ANSWER ✔ : As the suction pressure increases. When using a brine solution in a system what can be used to prevent rusting? - ANSWER ✔ : Di-Chromate Tablets. What would cause a Halide torch flame to turn yellow? - ANSWER ✔ : A clogged sample tube. What is the purpose of having 2 compressors in a cascade system? - ANSWER ✔ : To op erate and very low temperatures and avoid high compression ratio.

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

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

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

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 EWLindy. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $16.34. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

69052 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 15 years now

Start selling
$16.34
  • (0)
Add to cart
Added