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The refrigerant leaving the evaporator of a TXV system will
The refrigerant leaving the evaporator of a TXV system will
The refrigerant leaving the evaporator of a TXV system will
A. be superheated a few degrees.
B. be colder than refrigerant entering the system.
C. be a mixture of water and solids.
D. always be a vapor.
Trades and Apprenticeship   gerska   510   Asked 3 years ago
Tech A says oily residue on hoses, components, or fittings indicates an area where refrigerant may ...
Tech A says oily residue on hoses, components, or fittings indicates an area where refrigerant may ...
 Technician A says oily residue on hoses, components, or fittings indicates an area where refrigerant may be leaking. Technician B says that low coolant level will result in the water pump only heating the engine, not the inside of the car. Who is correct?
  A. Technician A
  B. Neither Technician A nor B
  C. Technician B
  D. Both Technician
Trades and Apprenticeship   gerska   496   Asked 3 years ago
Tech A says in a fully charged orifice-tube system, the accumulator temperature will be higher than ...
Tech A says in a fully charged orifice-tube system, the accumulator temperature will be higher than ...
Technician A says that in a fully charged orifice-tube system, the accumulator temperature will be higher than the orifice tube temperature. Technician B says that in a properly operating air-conditioning system, the inlet to the compressor should be cool and the outlet from the compressor hot. Who is correct?
  A. Technician B
  B. Both Technicians A and B
Trades and Apprenticeship   gerska   738   Asked 3 years ago
A vehicle is producing a sharp, metallic rapping sound originating in the upper
A vehicle is producing a sharp, metallic rapping sound originating in the upper
A vehicle is producing a sharp, metallic rapping sound originating in the upper portion of the engine.  It is most noticeable during idle.  Technician A says the problem is the piston pin to piston pin bore clearance is too high.  Technician B says the problem is most likely a loose crankshaft thrust bearing.  Who is correct?
Trades and Apprenticeship   roger.clark2   564   Asked 3 years ago
A vehicle is misfiring on cylinders 2 and 3.
A vehicle is misfiring on cylinders 2 and 3.
A vehicle is misfiring on cylinders 2 and 3.  



Trades and Apprenticeship   roger.clark2   410   Asked 3 years ago
A vehicle exhibits a knocking sound around 2000 rpm and goes away when the # 2 c
A vehicle exhibits a knocking sound around 2000 rpm and goes away when the # 2 c
A vehicle exhibits a knocking sound around 2000 rpm and goes away when the # 2 cylinder is disabled.
Tech A says the problem may be caused by excessive camshaft endplay.
Tech B says the problem could be caused by worn connecting rod bearings.
Who is correct?
Trades and Apprenticeship   roger.clark2   185   Asked 3 years ago
Tech A says the noise could result from low oil pressure caused by worn main bea
Tech A says the noise could result from low oil pressure caused by worn main bea
Tech A says the noise could result from low oil pressure caused by worn main bearings.
Tech B says the noise could be piston slap caused by too much piston – to – cylinder wall clearance.
Who is correct?
Trades and Apprenticeship   roger.clark2   212   Asked 3 years ago
An engine has a hollow, metallic clatter when started cold. The noise diminishe
An engine has a hollow, metallic clatter when started cold. The noise diminishe
An engine has a hollow, metallic clatter when started cold.  The noise diminishes and eventually goes away as the engine warms up to operating temperature.
Trades and Apprenticeship   roger.clark2   164   Asked 3 years ago
Vehicle has reduced engine performance and a rattling sound is heard near the
Vehicle has reduced engine performance and a rattling sound is heard near the
vehicle has reduced engine performance and a rattling sound is heard near the front of the engine.  What is the most likely cause?
Trades and Apprenticeship   roger.clark2   176   Asked 3 years ago
An engine misfires on cylinder #3 when cold and the compression and cylinder lea
An engine misfires on cylinder #3 when cold and the compression and cylinder lea
An engine misfires on cylinder #3 when cold and the compression and cylinder leakdown tests results are within specifications.  What is the most likely cause?
Trades and Apprenticeship   roger.clark2   143   Asked 3 years ago
A vehicle is producing a sharp, metallic rapping sound originating in the upper
A vehicle is producing a sharp, metallic rapping sound originating in the upper
A vehicle is producing a sharp, metallic rapping sound originating in the upper portion of the engine.  It is most noticeable during idle.  Technician A says the problem is the piston pin to piston pin bore clearance is too high.  Technician B says the problem is most likely a loose crankshaft thrust bearing.  Who is correct?

Trades and Apprenticeship   roger.clark2   190   Asked 3 years ago
An engine misfires on cylinder #3 when cold and the compression and cylinder lea
An engine misfires on cylinder #3 when cold and the compression and cylinder lea
An engine misfires on cylinder #3 when cold and the compression and cylinder leakdown tests results are within specifications.  What is the next diagnostic step?
Trades and Apprenticeship   roger.clark2   156   Asked 3 years ago
All of the following spring measurements would require spring replacement if out
All of the following spring measurements would require spring replacement if out
All of the following spring measurements would require spring replacement if out of specification EXCEPT:
Trades and Apprenticeship   roger.clark2   180   Asked 3 years ago
Technician A says that umbrella valve seals are installed in their operating pos
Technician A says that umbrella valve seals are installed in their operating pos
Technician A says that umbrella valve seals are installed in their operating position during cylinder head assembly.  Technician B says that positive valve seals are positioned by the valve.  Who is right?
Trades and Apprenticeship   roger.clark2   203   Asked 3 years ago
When a cylinder head is disassembled, the stem height on once valve is found to
When a cylinder head is disassembled, the stem height on once valve is found to
When a cylinder head is disassembled, the stem height on once valve is found to be too high. 
Trades and Apprenticeship   roger.clark2   141   Asked 3 years ago
When a cylinder head is disassembled, the stem height on once valve is found to
When a cylinder head is disassembled, the stem height on once valve is found to
When a cylinder head is disassembled, the stem height on once valve is found to be too high.  Which of the following can correct this?
Trades and Apprenticeship   roger.clark2   139   Asked 3 years ago
Technician A says that a burned valve could be the result of too little valve la
Technician A says that a burned valve could be the result of too little valve la
Technician A says that a burned valve could be the result of too little valve lash.  Technician B says excessive valve lash could cause very fast camshaft wear.  Who is right?
Trades and Apprenticeship   roger.clark2   153   Asked 3 years ago
Are methods of correcting excessive valve stem-to-guide clearance
Are methods of correcting excessive valve stem-to-guide clearance
are methods of correcting excessive valve stem-to-guide clearance
Trades and Apprenticeship   roger.clark2   170   Asked 3 years ago
All of the following are methods of correcting excessive valve stem-to-guide cle
All of the following are methods of correcting excessive valve stem-to-guide cle
All of the following are methods of correcting excessive valve stem-to-guide clearance EXCEPT:
Trades and Apprenticeship   roger.clark2   179   Asked 3 years ago
Which term is used to describe the number of degrees of crankshaft rotation for
Which term is used to describe the number of degrees of crankshaft rotation for
Which term is used to describe the number of degrees of crankshaft rotation for which the valve is lifted off the seat?
Trades and Apprenticeship   roger.clark2   195   Asked 3 years ago
Two technicians are discussing an engine with an interference design. Technician
Two technicians are discussing an engine with an interference design. Technician
Two technicians are discussing an engine with an interference design. Technician A says if a valve remains open when its cylinder reaches TDC, the piston may strike the valve. Technician B says if a valve remains open when its cylinder reaches TDC, valvetrain damage can result. Which technician is correct?
Trades and Apprenticeship   roger.clark2   348   Asked 3 years ago
The use of a knurling tool is being described. After the knurling tool displaces
The use of a knurling tool is being described. After the knurling tool displaces
The use of a knurling tool is being described. After the knurling tool displaces the metal inside the guide, a ________ is run through the guide to produce a restored, serviceable valve guide.
Trades and Apprenticeship   roger.clark2   176   Asked 3 years ago
The PCM controls cam timing by use of ________.
The PCM controls cam timing by use of ________.
The PCM controls cam timing by use of ________.
Trades and Apprenticeship   roger.clark2   163   Asked 3 years ago
Technician A says that valve stem height should be checked and the top of the va
Technician A says that valve stem height should be checked and the top of the va
Technician A says that valve stem height should be checked and the top of the valve ground, if necessary. Technician B says that after a thorough cleaning, the cylinder head should be assembled using new valve stem seals. Who is right?
Trades and Apprenticeship   roger.clark2   208   Asked 3 years ago
Technician A says that valve springs should be kept with the valve at the time o
Technician A says that valve springs should be kept with the valve at the time o
Technician A says that valve springs should be kept with the valve at the time of disassembly and tested for squareness and proper spring force. Technician B says that the exhaust valve is about 50 percent of the size of the intake valve. Who is right?
Trades and Apprenticeship   roger.clark2   248   Asked 3 years ago
Technician A says that valve overlap is the number of crankshaft degrees that bo
Technician A says that valve overlap is the number of crankshaft degrees that bo
Technician A says that valve overlap is the number of crankshaft degrees that both valves are closed. Technician B says that valve overlap is the number of degrees that both valves are open. Who is right?
Trades and Apprenticeship   roger.clark2   219   Asked 3 years ago
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