Hfc - Study guides, Class notes & Summaries
Looking for the best study guides, study notes and summaries about Hfc? On this page you'll find 1284 study documents about Hfc.
All 1.284 results
Sort by
-
EPA Section 609 Exam Questions With Correct Answers
- Exam (elaborations) • 6 pages • 2023
- Available in package deal
-
- $10.99
- 23x sold
- + learn more
A refillable refrigerant cylinder must not be filled above ______ of its full capacity. - Answer 80% 
 
Ozone layer absorbs and scatters ________ from the sun - Answer Ultraviolet light 
 
An award of up to ______ may be paid to a person supplying information that leads to a penalty against a technician who is intentionally venting. - Answer $10,000 
 
Since ________, it is no longer legal for CFCs to be manufactured or imported into the United States - Answer Jan 1, 1996 
 
R-134a is a chlorine...
-
NFPA 10 Exam 99 Questions with Verified Answers,100% CORRECT
- Exam (elaborations) • 10 pages • 2023 Popular
-
Available in package deal
-
- $11.49
- 9x sold
- + learn more
NFPA 10 Exam 99 Questions with Verified Answers 
 
(SI) - CORRECT ANSWER International System of Units 
 
1 in=. mm - CORRECT ANSWER 25.4 
 
Approved - CORRECT ANSWER Acceptable to the authority having jurisdiction. 
 
(AHJ) - CORRECT ANSWER Authority Having Jurisdiction 
O rganization, office or individual responsible for enforcing requirements of a code or standard, or for approving equipment, materials, an installation or procedure. 
 
Shall - CORRECT ANSWER Indicates a mandatory requirement....
-
MACS 609 CERTIFICATION questions with correct answers
- Exam (elaborations) • 3 pages • 2023
-
- $9.99
- 22x sold
- + learn more
If lubricant is removed by recovery equipment during system refrigerant removal, what must be done with the lubricant? - Answer Re-install lubricant removed by the recovery equipment 
 
Before reuse, what must be done with HFC-134a that has been recovered from a mobile A/C system using recovery-only equipment? - Answer Question 2 options: 
Recycle the HFC-134a before reuse using certified equipment
-
Progression: Maintenance Tech I - II Conventional Questions and Answers 100% Pass
- Exam (elaborations) • 24 pages • 2023
-
Available in package deal
-
- $9.99
- 3x sold
- + learn more
Progression: Maintenance Tech I - II Conventional Questions and Answers 100% Pass 
In the tree-and-branch architecture, how is the downstream signal from the trunk fed to the distribution branches? Within each trunk amplifier, a portion of the downstream is fed to a bridger amplifier to boost the signal before being split and routed to the distribution branches. 
What is a common solution when congestion from modem activity and traffic becomes unacceptable in a hybrid fiber/coax (HFC) network? N...
-
NCTI FINAL EXAM: PROGRESSION FIELD TECH 6 TEST EXAM| LATEST UPDATE 2023 / 2024| Verified Answers
- Exam (elaborations) • 29 pages • 2023
- Available in package deal
-
- $9.49
- 2x sold
- + learn more
NCTI FINAL EXAM: PROGRESSION FIELD TECH 6 TEST EXAM| LATEST UPDATE 2023 / 2024| Verified Answers 
 
Which piece of equipment in the VoIP phone system routes a call to the public switched telephone network (PTSN) when the receiving location is from outside the PacketCable managed IP network? - ANSWER Gateway 
 
 
 
 
 
What are the three sub-network interfaces managed by PacketCable? - ANSWER ...
Make study stress less painful
-
NCTI Final Exam Maintance Tech 2-3 Conventional| New Update 2023/ 2024| Verified Questions and ANSWERs
- Exam (elaborations) • 13 pages • 2024
- Available in package deal
-
- $11.49
- 1x sold
- + learn more
NCTI Final Exam Maintance Tech 2-3 Conventional| New Update 2023/ 2024| Verified Questions and ANSWERs 
 
 
In a hybrid fiber/coax HFC fiber optic node, what are common voltages produced by DC power supplies? - ANSWER Common Voltage includes +5, +12 and +24 VDC 
 
 
 
 
Why do many optical nodes accept two independent power supplies? - ANSWER For redundant Powering of the node. 
 
 
 
 
What is an o...
-
MACS 609 CERTIFICATION EXAM QUESTIONS & ANSWERS CORRECT 100%
- Exam (elaborations) • 3 pages • 2023
- Available in package deal
-
- $9.99
- 1x sold
- + learn more
If lubricant is removed by recovery equipment during system refrigerant removal, what must be done with the lubricant? - Answer Re-install lubricant removed by the recovery equipment 
 
Before reuse, what must be done with HFC-134a that has been recovered from a mobile A/C system using recovery-only equipment? - Answer Question 2 options: 
Recycle the HFC-134a before reuse using certified equipment 
 
When can HFC-134a become combustible in a mobile air conditioning system? - Answer If shop air ...
-
EPA 609 Technician Certification Questions and Answers Already Passed
- Exam (elaborations) • 18 pages • 2023
-
Available in package deal
-
- $9.99
- 1x sold
- + learn more
EPA 609 Technician Certification Questions and Answers Already Passed 1. T/F Ozone at ground level ans at Stratosphere is a harmful pollutant FALSE 
2. For determining the Ozone Depletion Potential __________ having been assigned a factor of 1 CFC-11 
3. Ozone layer absorbs and scatters __________ form the sun Ultraviolet light 
4. T/F R-134 is a chlorine-free refrigerant TRUE 
5. a refillable refrigerant cylinder must not be filled above _________ of its full capacity 80% 
6. T/F Ester-based sy...
-
Progression: Field Tech II - III Conventional Exam 2024
- Exam (elaborations) • 16 pages • 2024
- Available in package deal
-
- $13.49
- 1x sold
- + learn more
Progression: Field Tech II - III Conventional Exam 2024 
What is one reason why broadband cable operators install fiber-optic cable in stages instead of 
changing the infrastructure all at once? - Answer ️️ -Changing the infrastructure all at once 
would cause too many service disruptions. 
What is the difference between the fiber-to-the-node (FTTN) and fiber-to-the-curb (FTTC) 
topologies? - Answer ️️ -An FTTC is allowed a smaller number of RF amplifiers between the 
optical fiber and t...
-
Progression: Field Tech II - III Conventional Questions and Answers Already Graded A
- Exam (elaborations) • 36 pages • 2023
-
Available in package deal
-
- $10.49
- 3x sold
- + learn more
Progression: Field Tech II - III Conventional Questions and Answers Already Graded A 
What is one reason why broadband cable operators install fiber-optic cable in stages instead of changing the infrastructure all at once? Changing the infrastructure all at once would cause too many service disruptions. 
What is the difference between the fiber-to-the-node (FTTN) and fiber-to-the-curb (FTTC) topologies? An FTTC is allowed a smaller number of RF amplifiers between the optical fiber and the custom...
Study stress? For sellers on Stuvia, these are actually golden times. KA-CHING! Earn from your study resources too and start uploading now. Discover all about earning on Stuvia