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

Author Question: When free cooling operation is not practical but the system is operating in an occupied mode, an ... (Read 48 times)

moongchi

  • Hero Member
  • *****
  • Posts: 516
on: Jul 24, 2018
When free cooling operation is not practical but the system is operating in an occupied mode, an economizer
  damper will be in its _____.
 
  a. fully open position
  b. fully closed position
  c. half open position
  d. minimum position

Question 2

Poor ventilation may exist in a building when the concentration of carbon dioxide in the building exceeds
  _____.
 
  a. 100 ppm
  b. 500 ppm
  c. 1,000 ppm
  d. 1,300 ppm


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

mcabuhat

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

d

Answer to Question 2

c


moongchi

  • Member
  • Posts: 516
Reply 2 on: Jul 24, 2018
Wow, this really help

alexanderhamilton

  • Member
  • Posts: 334
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

Hip fractures are the most serious consequences of osteoporosis. The incidence of hip fractures increases with each decade among patients in their 60s to patients in their 90s for both women and men of all populations. Men and women older than 80 years of age show the highest incidence of hip fractures.

Did you know?

During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).

Did you know?

Coca-Cola originally used coca leaves and caffeine from the African kola nut. It was advertised as a therapeutic agent and "pickerupper." Eventually, its formulation was changed, and the coca leaves were removed because of the effects of regulation on cocaine-related products.

Did you know?

Automated pill dispensing systems have alarms to alert patients when the correct dosing time has arrived. Most systems work with many varieties of medications, so patients who are taking a variety of drugs can still be in control of their dose regimen.

Did you know?

On average, the stomach produces 2 L of hydrochloric acid per day.

Maternal-fetal incompatibility in the Rh system. Maternal-fetal incompatibility in the Rh system.
Disorders of or Associated with the Lymphatic System Disorders of or Associated with the Lymphatic System
Effects of the Autonomic Nervous System Effects of the Autonomic Nervous System
Organs of the Digestive System Organs of the Digestive System
Muscular system and Cardiovascular system Muscular system and Cardiovascular system
In another solar system, a planet has an airless moon Zygo that is 4.0 × 105 m in diameter. ... In another solar system, a planet has an airless moon Zygo that is 4.0 × 105 m in diameter. ...
Video: Status Epilepticus

For a complete list of videos, visit our video library