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

Author Question: A pneumatic controller that increases the pressure of its branch line when air temperature in the ... (Read 52 times)

tiffannnnyyyyyy

  • Hero Member
  • *****
  • Posts: 512
on: Jul 24, 2018
A pneumatic controller that increases the pressure of its branch line when air temperature in the conditioned
  space goes up is called a(n) _____.
 
  a. direct-acting thermostat
  b. reverse-acting thermostat
  c. graduate thermometer
  d. E-P relay

Question 2

Why is 24V used in control circuits?
 
  a. Components are easy to install.
  b. Alternating current is not needed.
  c. It allows battery back-up.
  d. Electric shocks are eliminated.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

millet

  • Sr. Member
  • ****
  • Posts: 354
Reply #1 on: Jul 24, 2018
Answer to Question 1

a

Answer to Question 2

a


tiffannnnyyyyyy

  • Member
  • Posts: 512
Reply 2 on: Jul 24, 2018
Wow, this really help

mjenn52

  • Member
  • Posts: 351
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Long-term mental and physical effects from substance abuse include: paranoia, psychosis, immune deficiencies, and organ damage.

Did you know?

Approximately 70% of expectant mothers report experiencing some symptoms of morning sickness during the first trimester of pregnancy.

Did you know?

The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.

Did you know?

According to the Migraine Research Foundation, migraines are the third most prevalent illness in the world. Women are most affected (18%), followed by children of both sexes (10%), and men (6%).

Did you know?

For high blood pressure (hypertension), a new class of drug, called a vasopeptidase blocker (inhibitor), has been developed. It decreases blood pressure by simultaneously dilating the peripheral arteries and increasing the body's loss of salt.

Optimum Temperature of Enzymes Optimum Temperature of Enzymes
Measuring Oral Temperature Using an Electronic Thermometer Measuring Oral Temperature Using an Electronic Thermometer
Measuring Blood Pressure Measuring Blood Pressure
A blow-off valve is used in some turbocharged systems to relieve boost pressure during ... A blow-off valve is used in some turbocharged systems to relieve boost pressure during ...
When 1.50 mol of CH4(g) reacts with excess Cl2(g) at constant pressure according to the ... When 1.50 mol of CH4(g) reacts with excess Cl2(g) at constant pressure according to the ...
Physics - Density, Pressure, and Pascal's Principle Physics - Density, Pressure, and Pascal's Principle
Video: Transcription—A molecular view

For a complete list of videos, visit our video library