A submaster controller resets the set point of the master controller. - ANSWER False
Normally open refers to a controlled device that opens when no operating force is applied. - ANSWER True
A P.E. Switch is used to change an electrical signal to a pneumatic output. - ANSWER False
Moisture ...
A submaster controller resets the set point of the master controller. - ANSWER False
Normally open refers to a controlled device that opens when no operating force is applied. - ANSWER
True
A P.E. Switch is used to change an electrical signal to a pneumatic output. - ANSWER False
Moisture and dirt are detrimental to the operation of pneumatic control systems. - ANSWER True
A static pressure regulator senses the pressure in the plenum the regulator controls. The sensor that
indicates this pressure to this regulator is called a_____? - ANSWER Static tip
The intensity of a force applied to a confined liquid or gas is transmitted equally in all directions
throughout the fluid in the form of fluid pressure. This statement is _____? - ANSWER Pascals Law
The greater the applied pressure on cylinder piston or the larger the cylinder piston area, the greater the
mechanical output force? - ANSWER True
A combination starter is a switch for disconnecting and a starter mounted and one enclosure. - ANSWER
True
Full load amperage of the motor is the same as starting current. - ANSWER False
A motor control circuit that is designed so that it must be restarted by pushing a start button after a
power interruption is a _____. - ANSWER 3 wire control
To reverse the direction of rotation of a 3 phase motor, you _____? - ANSWER Interchange the
connection of the motor
, You have a normally closed steam humidifier valve. What action would the hugrostat/humidistat be? -
ANSWER Reverse action
PS1 is what type of switch? - ANSWER Electric pressure switch
Contactor coil 1 pulls in an electric strip heater on a cold air duct to a room. The pneumatic room
thermostat operates PS1. The thermostat action is what control action? - ANSWER Reverse
If we lost control power in the system above, the room temperature would _____? - ANSWER
Fall/decrease in temperature
In this system, if we lost control branch pressure to PS1, the room temperature would _____? - ANSWER
Fall/decrease in temperature.
The transformer would be of what type? - ANSWER Step down
The thermostat pictured above is best described as a _____? - ANSWER Single pip
If the ambient temperature increased and the bimetal warped toward the nozzle (down), the control
action would be _____? - ANSWER Direct action
The control action of this thermostat is _____? - ANSWER Reverse acting
The branch pressure for full heating would be _____? - ANSWER 13 PSIG
The branch pressure for full cooling would be _____? - ANSWER 3 PSIG
This type of system could best be described as ____? - ANSWER Variable Volume/terminal reheat
The heating valve is a pipe _____. - ANSWER Normally closed
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller shantelleG. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $9.99. You're not tied to anything after your purchase.