Exam (elaborations)
NATE Final Exam #1 – Questions / Solutions
- Course
- Institution
NATE Final Exam #1 – Questions / Solutions
[Show more]
Seller
Follow
Studyhall
Reviews received
Content preview
NATE Final Exam #1 – Questions / SolutionsGenerally, vibration eliminators in piping should be installed:
A: At a 45 degree angle
B: At a 90 degree angle
C: Perpendicular to the compressor crankshaft
D: Parallel to the compressor crankshaft ✔️Ans - D: Parallel to the
compressor crankshaft
If you purchased ten filter-driers for $100.00, what was the price of each
filter-drier?
A: $100.00
B: $10.00
C: $1.00
D: $1.10 ✔️Ans - B: $10.00
Which of the following jobs requires safety glasses?
A: Driving a vehicle
B: Extending a ladder
C: Brazing
D: Pulling thermostat wire ✔️Ans - C: Brazing
Which of the following instruments would typically be used to measure a
vacuum?
A: Micron gauge
, B: Thermostat
C: Anemometer
D: Differential pressure gauge ✔️Ans - A: Micron gauge
ASHRAE Standard 34 deals with:
A: Carbon monoxide safety levels
B: Refrigerant quality
C: Equipment room ventilation and alarms
D: Refrigerant toxicity and flammability ✔️Ans - D: Refrigerant toxicity
and flammability
ANSI/ASHRAE 34 published in 2001 and entitled "Designation and Safety
Classification of Refrigerants".
• Class A signifies refrigerants for which toxicity has not been identified at
concentrations less than or equal to 400 ppm;
• Class B signifies refrigerants for which there is evidence of toxicity at
concentrations below 400 ppm.
• Class 1 indicates refrigerants that do not show flame propagation when
tested in air at 21°C and 101 kPa;
• Class 2 indicates refrigerants having a lower flammability limit of more than
0.10 kg/m3 at 21°C and 101 kPa and a heat of combustion of less than 19
kJ/kg;
• Class 3 indicates refrigerants that are highly flammable as defined by a
lower flammability limit of less than or equal to 0.10 kg/m3 at 21°C and 101
kPa or a heat of combustion greater than or equal to 19 kJ/kg.
What control would you use on a capillary tube or automatic expansion valve
system to maintain the desired temperature?
A: Dual pressure control
B: High pressure control
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 Studyhall. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $12.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
79223 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now