Author Question: In what year was oxyacetylene introduced? A) 1836 B) 1929 C) 1902 D) ... (Read 48 times)

robinn137

  • Hero Member
  • *****
  • Posts: 544
In what year was oxyacetylene introduced?
 
  A) 1836 B) 1929 C) 1902 D) 1859

Question 2

The purpose of controls in an HVACR system is to
 
  A) regulate HVACR equipment in response to monitored conditions
  B) Protect the refrigeration cycle components
  C) Start and stop all the electrical components
  D) maintain the temperature in a space



iman

  • Sr. Member
  • ****
  • Posts: 334
Answer to Question 1

A

Answer to Question 2

A



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Tobacco depletes the body of vitamins A, C, and E, which can result in any of the following: dry hair, dry skin, dry eyes, poor growth, night blindness, abscesses, insomnia, fatigue, reproductive system problems, sinusitis, pneumonia, frequent respiratory problems, skin disorders, weight loss, rickets, osteomalacia, nervousness, muscle spasms, leg cramps, extremity numbness, bone malformations, decayed teeth, difficulty in walking, irritability, restlessness, profuse sweating, increased uric acid (gout), joint damage, damaged red blood cells, destruction of nerves, infertility, miscarriage, and many types of cancer.

Did you know?

The eye muscles are the most active muscles in the whole body. The external muscles that move the eyes are the strongest muscles in the human body for the job they have to do. They are 100 times more powerful than they need to be.

Did you know?

The strongest synthetic topical retinoid drug available, tazarotene, is used to treat sun-damaged skin, acne, and psoriasis.

Did you know?

Cyanide works by making the human body unable to use oxygen.

Did you know?

As of mid-2016, 18.2 million people were receiving advanced retroviral therapy (ART) worldwide. This represents between 43–50% of the 34–39.8 million people living with HIV.

For a complete list of videos, visit our video library