Unit 45 Quiz Flashcards
(40 cards)
Domestic refrigerators are not designed for placement outdoors. What is the main reason they should be kept indoors?
They do not work well in ambient temperatures
What is the yoder loop and what function(s) does it serve?
The Yoder loop is apart of the liquid line that subcools and condensates
Kenmore is the brand name on appliances sold by Sears. How can you tell who the original manufacturer of an appliance with the Kenmore label on it?
Look for the sticker on the inside for the first 3 serial numbers
When installing a refrigerator that has an ice maker in it, what must be checked to make sure the ice maker will perform properly?
Make sure fridge is level
water pressure
water filter
Customer has a refrigerator with a top mounted freezer. The fresh food section isn’t getting cold enough and the freezer appears to have frost forming on the evaporator cover. Customer noticed a ticking sound coming from the freezer compartment a few days before the fresh food compartment wasn’t getting cold enough. What are some possible problems that could be the cause for the fresh food compartment not getting down to the proper temperature?
Bad heater
bad defrost timer
broken evaporator motor
Door gaskets can be mounted to the door by three methods, what are they?
Screws, gasket Chanel, slip in behind liner
The condensate from the evaporator coil is disposed of by evaporation using heat from the discharge line or _______.
Heated air from the condenser
True or false: All partitions must be in the correct position or high head pressure and long or continuous running times will occur.
True
True or false: The defrost timer motor operates independently of the compressor motor.
False
True or false: To increase the size of ice being made in modular ice maker, the water valve is allowed to stay open for a longer period.
True
True or false: Placing heavy objects in the door of a refrigerator may prevent the gasket from forming a good seal if the refrigerator isn’t leveled correctly.
True
True or false: Typical box temperature of the fresh food compartment in a refrigerator is 30 degrees - 40 degrees.
True
Which of the following represents the vacuum level that should be achieved on a domestic refrigerator before charging?
Deep
To repair a leak in an aluminum evaporator, a special epoxy product may be applied to the hole while the unit is in a slight _____.
Vacuum
The process of changing from a solid to a vapor is known as _________.
Sublimation
What are two ways to tell if a domestic refrigerator is losing refrigerant without attaching a manifold?
Remove evaporator cover to see if everything is frosty
check ice cream to see if it is soft when it is supposed to be hard
You are going to function check an ice maker that has the following letters next to probe access holes: M,T,V,H,N & L. What access holes must be jumped in order for the ice maker to run through a test cycle?
H and T
What are the water line connectors in a domestic refrigerator called?
John guest connectors
Describe two methods to determine if a door gasket is bad.
- Throw a light in the fridge and use an inspection mirror to see if any light is coming out
- Open door and look for condensate
Customer states that the ice in the storage bin appears to be melted into a solid block of ice. What could be causing the ice cubes to freeze into a solid block of ice?
Ice flapper
How do modern refrigerator door gaskets differ from earlier refrigerator door gaskets?
Newer ones have a magnet
List at least three things that could prevent an ice maker from making ice.
Low water pressure
broken ice sensor
broken/blocked laser sensor
How does heat enter a domestic refrigerator?
Through the walls
The stand-alone freezer may be configured tow ways. What are the two configurations?
Upright and chest freezers
