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

Author Question: If one of the power legs feeding a three phase motor is interrupted while the motor is operating: ... (Read 108 times)

ericka1

  • Hero Member
  • *****
  • Posts: 544
on: Jul 26, 2018
If one of the power legs feeding a three phase motor is interrupted while the motor is operating:
 
  A) The motor will immediately stop running and will not draw any current.
  B) The motor will slow down by one third.
  C) Nothing will happen because the motor can still operate on the remaining two legs.
  D) The motor will slow down, draw high amp draw and burn out.

Question 2

An air conditioner is operating with low system pressures, an evaporator saturation temperature of 20F and a suction line temperature of 24F. The suction line is frosting. The most likely cause of these symptoms is:
 
  A) That the system is undercharged.
  B) That the system is overcharged.
  C) Excessive humidity in the air, causing the coil to frost up.
  D) Reduced airflow across the evaporator.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

zhanghao

  • Sr. Member
  • ****
  • Posts: 316
Reply #1 on: Jul 26, 2018
Answer to Question 1

D

Answer to Question 2

D


ericka1

  • Hero Member
  • *****
  • Posts: 544
Reply #2 on: Jul 26, 2018
Thank you!


zhanghao

  • Sr. Member
  • ****
  • Posts: 316
Reply #3 on: Jul 26, 2018
Always glad to help...


« previous next »
 

Did you know?

Blastomycosis is often misdiagnosed, resulting in tragic outcomes. It is caused by a fungus living in moist soil, in wooded areas of the United States and Canada. If inhaled, the fungus can cause mild breathing problems that may worsen and cause serious illness and even death.

Did you know?

Patients who have undergone chemotherapy for the treatment of cancer often complain of a lack of mental focus; memory loss; and a general diminution in abilities such as multitasking, attention span, and general mental agility.

Did you know?

The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.

Did you know?

Calcitonin is a naturally occurring hormone. In women who are at least 5 years beyond menopause, it slows bone loss and increases spinal bone density.

Did you know?

Certain rare plants containing cyanide include apricot pits and a type of potato called cassava. Fortunately, only chronic or massive ingestion of any of these plants can lead to serious poisoning.

Motor proteins and their interactions with cytoskeletal filaments. Motor proteins and their interactions with cytoskeletal filaments.
A toddler's developing motor skills allow the child to exert more independence and control over A toddler's developing motor skills allow the child to exert more independence and control over
Fine motor skills involve coordinating the many small muscles of the wrists, hands, and fingers. Fine motor skills involve coordinating the many small muscles of the wrists, hands, and fingers.
The schematic of a variable valve timing control circuit, showing that battery power (+) is being ... The schematic of a variable valve timing control circuit, showing that battery power (+) is being ...
Active Transport in Vesicles: Bulk Phase Endocytosis (Pinocytosis) Active Transport in Vesicles: Bulk Phase Endocytosis (Pinocytosis)
Physics: Power, Energy and Time Physics: Power, Energy and Time
Video: Cataract

For a complete list of videos, visit our video library