Chpt 20 Flashcards
The refractometer is a tester used to test the blank of the coolant by placing a few drops of coolant on the prism surface?
Freezing point
A hydrometer is used to measure the blank of the coolant.
Density
The boiling point of a 50/50 mixture of antifreeze and water at sea level is
103 degrees Celsius.
The freezing point of a coolant comprising of a 50/50 mixture. Of antifreeze and water is.
37 degrees Celsius.
Blank in inorganic additive technology, IAT coolants cause deposits, the form if used with hard water.
phosphates
Blank. In an organic additive technology, IAT coolants are most likely to cause erosive wear to water pump impellers.
Silicates
The color of inorganic additive technology IAT coolant is
Green
Regardless of the type of coolant and its color, the only difference among all original equipment coolant is in the.
Addition of additives.
What is the approximate percentage composition of ethylene glycol in ethylene glycol based coolants.
47 percent
Blank is able to absorb more heat per gallon than any other liquid coolant
Water
Technician a stated that a coolant is a mixture of antifreeze and water.
True
Technician b stated that water is able to absorb more heat per gallon than any other liquid coolant.
True
When coolant boils, why does it not act as a efficient coolant?
Because it is boiling it vaporizes. And is not in liquid form.
Silicates in an organic additive technology IAT coolants can cause erosive wear to what?
Water pump impellers.
Organic acid technology oat coolant do not contain
Silicates
Technician a stated that phosphates in organic additive technology OAT coolant can cause deposits to form if used with water that is hard
True
Technician b stated that the color of inorganic additive technology. IAT coolant is orange.
False
Technician. A stated that hybrid organic acid technology hoat coolant use organic acid salts carboxylates that are abrasive to water pumps.
False
Technician b stated that the Ph of hybrid organic acid technology hoat coolant is usually below 7.
False
Technician. A stated that the boiling point of a 50/50 mixture of antifreeze and water at sea level is 103 Celsius.
True
Technician b stated that the boiling point of a 70/30 mixture of antifreeze and water is 50 degrees Celsius.
False
Galvanic activity does not require an outside source of voltage.
True
The higher density of the coolant the greater the blank of antifreeze is in the water
Concentration
Technician A stated that coolant should never be recycled technician b stated that the types of coolant should be constantly changed to prevent passivation.
Neither
