Author Question: The control point classification of a sensor used to measure the status of a pressure switch is ... (Read 65 times)

saraeharris

  • Hero Member
  • *****
  • Posts: 546
The control point classification of a sensor used to measure the status of a pressure switch is _____.
 
  a. analog input (AI)
  b. analog output (AO)
  c. discrete input (DI)
  d. discrete output (DO)

Question 2

With direct-acting solenoid valves, the port size of the valve is limited by _____.
 
  a. power limitations of the coil
  b. the refrigerant type
  c. the operating pressure
  d. the ambient temperature



ciecieme

  • Sr. Member
  • ****
  • Posts: 331
Answer to Question 1

c

Answer to Question 2

a



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

The average office desk has 400 times more bacteria on it than a toilet.

Did you know?

Bisphosphonates were first developed in the nineteenth century. They were first investigated for use in disorders of bone metabolism in the 1960s. They are now used clinically for the treatment of osteoporosis, Paget's disease, bone metastasis, multiple myeloma, and other conditions that feature bone fragility.

Did you know?

More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.

Did you know?

The Food and Drug Administration has approved Risperdal, an adult antipsychotic drug, for the symptomatic treatment of irritability in children and adolescents with autism. The approval is the first for the use of a drug to treat behaviors associated with autism in children. These behaviors are included under the general heading of irritability and include aggression, deliberate self-injury, and temper tantrums.

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.

For a complete list of videos, visit our video library