« previous next »

Author Question: How does an ultrasonic-type leak detector work? A) It sees the disturbance in the air surrounding ... (Read 65 times)

CharlieWard

  • Hero Member
  • *****
  • Posts: 578
on: Jul 24, 2018
How does an ultrasonic-type leak detector work?
 
  A) It sees the disturbance in the air surrounding the leak.
  B) It uses Bluetooth wireless technology.
  C) It hears the high-pitched sound of escaping gas.
  D) It uses sonar to look for imperfections in the tubing and fittings.

Question 2

In which system does less refrigerant enter the cylinder for each compression cycle, requiring more horsepower for each BTU of cooling?
 
  A) A low-evaporator-temperature system B) A high-condenser-temperature system
  C) A high-evaporator-temperature system D) A low-condenser-temperature system


matt

  • Sr. Member
  • ****
  • Posts: 344
Reply #1 on: Jul 24, 2018
Answer to Question 1

C

Answer to Question 2

A


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Nearly all drugs pass into human breast milk. How often a drug is taken influences the amount of drug that will pass into the milk. Medications taken 30 to 60 minutes before breastfeeding are likely to be at peak blood levels when the baby is nursing.

Did you know?

Certain rare plants containing cyanide include apricot pits and a type of potato called cassava. Fortunately, only chronic or massive ingestion of any of these plants can lead to serious poisoning.

Did you know?

In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.

Did you know?

Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.

Did you know?

Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.

Basal cell carcinoma, a frequent type of skin cancer that rarely metastasizes. Basal cell carcinoma, a frequent type of skin cancer that rarely metastasizes.
Suture Use, Size, and Type of Material Suture Use, Size, and Type of Material
In many work settings, middle-aged people demonstrate generativity by serving as mentors for their ... In many work settings, middle-aged people demonstrate generativity by serving as mentors for their ...
Action of a type II topoisomerase Action of a type II topoisomerase
Type of pathogen organism Type of pathogen organism
Video: Polysaccharides

For a complete list of videos, visit our video library