This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: What type of sensor is most often used to detect very low parts per million for toxic refrigerants? ... (Read 63 times)

danielfitts88

  • Hero Member
  • *****
  • Posts: 535
on: Jul 24, 2018
What type of sensor is most often used to detect very low parts per million for toxic refrigerants?
 
  A) Photoacoustic infrared (PIR) B) Nondispersive infrared (NDIR)
  C) Electrochemical (EC) sensors D) Ceramic metal oxide semiconductor (CMOS)

Question 2

Why are a hammer and chisel used on a DOT 39 cylinder?
 
  A) To break open the cylinder
  B) To lessen refrigerant pressure
  C) To remove the nozzle
  D) To open the rupture disk when disposing an empty cylinder


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

nhea

  • Sr. Member
  • ****
  • Posts: 305
Reply #1 on: Jul 24, 2018
Answer to Question 1

C

Answer to Question 2

D


danielfitts88

  • Member
  • Posts: 535
Reply 2 on: Jul 24, 2018
Great answer, keep it coming :)

FergA

  • Member
  • Posts: 352
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Common abbreviations that cause medication errors include U (unit), mg (milligram), QD (every day), SC (subcutaneous), TIW (three times per week), D/C (discharge or discontinue), HS (at bedtime or "hours of sleep"), cc (cubic centimeters), and AU (each ear).

Did you know?

More than 50% of American adults have oral herpes, which is commonly known as "cold sores" or "fever blisters." The herpes virus can be active on the skin surface without showing any signs or causing any symptoms.

Did you know?

Elderly adults are living longer, and causes of death are shifting. At the same time, autopsy rates are at or near their lowest in history.

Did you know?

Despite claims by manufacturers, the supplement known as Ginkgo biloba was shown in a study of more than 3,000 participants to be ineffective in reducing development of dementia and Alzheimer’s disease in older people.

Did you know?

Pink eye is a term that refers to conjunctivitis, which is inflammation of the thin, clear membrane (conjunctiva) over the white part of the eye (sclera). It may be triggered by a virus, bacteria, or foreign body in the eye. Antibiotic eye drops alleviate bacterial conjunctivitis, and antihistamine allergy pills or eye drops help control allergic conjunctivitis symptoms.

PCR primers detect and amplify a specific genomic region PCR primers detect and amplify a specific genomic region
Parts of the Hand Used in Palpation; Ulnar Surface Parts of the Hand Used in Palpation; Ulnar Surface
Luna Park at Coney Island was a vast living theater in which strollers were both spectators and acto Luna Park at Coney Island was a vast living theater in which strollers were both spectators and acto
How to integrate by parts for definite integrals How to integrate by parts for definite integrals
Mammograms are used to detect breast cancer Mammograms are used to detect breast cancer
Wild-type flowers of Arabidopsis Wild-type flowers of Arabidopsis
Video: What is Reverse Osmosis?

For a complete list of videos, visit our video library