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WorksheetsAUT 101 Chapter 16 Test: Week 8
Total questions: 20
Worksheet time: 10mins
When heat travels from one solid to another, it is known as ______.
Convection
Radiation
Conduction
Vaporization
The type of heat transfer where heat is transferred from one solid to another is called:
convection
conduction
radiation
thermodynamics
Much of the heat produced during combustion is not used productively and must be removed to avoid overheating of the engine.
True
False
Technician A states that much of the heat produced during combustion is not used productively and must be removed to avoid overheating of the engine. Technician B states that the internal combustion engine relies on the heat of combustion to produce torque. Who is correct?
Technician A
Technician B
Both A and B
Neither A nor B
The automotive cooling system provides a means of transferring heat from the hot parts of the engine to ambient air.
True
False
Manufacturers use various cooling system configurations, but the basic concept is to _______.
transfer excessive heat from hotter to cooler environments
modify the volume of coolant to allow heat transfer
transfer excessive heat from cooler to hotter environments
modify the contents of a coolant to allow heat transfer
The coolant heat storage system:
uses a condenser
prevents the engine from overheating on hot days
increases hydrocarbon exhaust emissions
preheats the engine when the vehicle is started the next time
______ have fallen out of favor in passenger vehicles because they are harder to maintain at a stable temperature, thereby increasing emissions output of the engine.
Air-cooled engines
Liquid-cooled engines
Fuel-cooled engines
None of the above
Many types of metals are used in the engine, such as _____, copper, and brass.
Cast iron
Aluminum
Both A and B
Neither A nor B
__________ is a type of nontoxic antifreeze.
Ethylene glycol
Polyalkylene glycol
Polyalphaolefin glycol
Propylene glycol
Because the engine will overheat if gas pockets get stuck in the water passageways, the solution was to drill holes in the head for steam to escape and to run a tube from the head back to a surge tank, where the steam turns back into coolant and is recycled through the system.
True
False
The liquid used for the cooling system is known as:
coolant
radiator fluid
gasahol
styrene
Technician A states that the cooling system of the rotary engine is very different from the piston engine's cooling system. Technician B states that water flows from the water pump to the radiator, then into the rotor housing. Who is correct?
Technician A
Technician B
Both A and B
Neither A nor B
The ______ is essentially the engine block of the rotary engine.
Rotor housing
Heater core
Thermostat
Radiator
The cooling system of the rotary engine is _______ the piston engine's cooling system.
Bigger than
Not much different from
Totally different from
More efficient than
After the coolant moves through the water jackets, it finds its way to the _______, where it returns to the radiator.
Thermostat
Engine block
Hoses
Piston
Air rushing by the fins carries the heat away.
True
False
Technician A says that when you find coolant hoses collapsed, the radiator pressure cap has failed. Technician B says that overflow tanks are reservoirs designed to hold coolant and allow flow back to the radiator. Who is correct?
Technician A
Technician B
Both A and B
Neither A nor B
The correct service interval for organic acid technology (OAT) type coolant is:
2 years or 24,000 miles
3 years or 36,000 miles
5 years or 150,000 miles
10 years or 100,000 miles
All of the following statements are true of a thermostat EXCEPT:
It regulates the flow of coolant
It is a spring-loaded valve controlled by a wax pellet
When the engine is cold, the valve is open; when hot, the valve closes
When installing the thermostat, the jiggle valve should be in the uppermost position
