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

Author Question: A device that does not switch on and off motors directly is a: A) Heavy-duty relay. B) Contactor. ... (Read 141 times)

ssal

  • Hero Member
  • *****
  • Posts: 572
on: Jul 24, 2018
A device that does not switch on and off motors directly is a:
 
  A) Heavy-duty relay. B) Contactor. C) Light-duty relay. D) Motor starter.

Question 2

An air conditioner with a thermostatic expansion valve is operating with a condenser saturation temperature of 95F and a liquid-line temperature of 92F. The factory-specified subcooling for the current operating condition is 10F. The technician should:
 
  A) Move some of the charge from the low side of the system to the high side of the system to balance the charge.
  B) Leave the charge alone because it is cooling even better than factory specifications.
  C) Add charge because the system is undercharged.
  D) Recover charge because the system is overcharged.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

miss.ashley

  • Sr. Member
  • ****
  • Posts: 371
Reply #1 on: Jul 24, 2018
Answer to Question 1

C

Answer to Question 2

C


ssal

  • Member
  • Posts: 572
Reply 2 on: Jul 24, 2018
Thanks for the timely response, appreciate it

Mochi

  • Member
  • Posts: 300
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.

Did you know?

Asthma attacks and symptoms usually get started by specific triggers (such as viruses, allergies, gases, and air particles). You should talk to your doctor about these triggers and find ways to avoid or get rid of them.

Did you know?

A good example of polar molecules can be understood when trying to make a cake. If water and oil are required, they will not mix together. If you put them into a measuring cup, the oil will rise to the top while the water remains on the bottom.

Did you know?

Vital signs (blood pressure, temperature, pulse rate, respiration rate) should be taken before any drug administration. Patients should be informed not to use tobacco or caffeine at least 30 minutes before their appointment.

Did you know?

Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.

Location of the Sinuses (Sphenoid Sinuses are Directly Behind Ethmoid Sinuses) Location of the Sinuses (Sphenoid Sinuses are Directly Behind Ethmoid Sinuses)
Pupil assessment; B, moving penlight directly in front of pupil. Pupil assessment; B, moving penlight directly in front of pupil.
To check to see if the electric fuel pump can be operated from the relay contacts, use a fused ... To check to see if the electric fuel pump can be operated from the relay contacts, use a fused ...
The vehicle’s fuel pump is disabled by removing its relay or fuse. In some cases, it may be ... The vehicle’s fuel pump is disabled by removing its relay or fuse. In some cases, it may be ...
Thoracic cage. Avoid heavy pressure over the sternum and xiphoid process; caution over rib cage. Thoracic cage. Avoid heavy pressure over the sternum and xiphoid process; caution over rib cage.
Apply knee to chest stretch for posterior hip and leg muscles. Facing the table directly, place one ... Apply knee to chest stretch for posterior hip and leg muscles. Facing the table directly, place one ...
Video: Bone elongation - processes at the epiphyseal plate

For a complete list of videos, visit our video library