Exam 7: Service Procedures

Which of the following statements regarding changing vacuum pump oil change interval is NOT correct?

A standard manifold gauge set has three color coded hoses attached to the manifold. Of the following, identify the INCORRECT statement.

Of the following refrigerant leak detection methods which one would be the most sensitive?

Of the following refrigerant leak detection methods which one would be the simplest?

What would the recommended vacuum pump size be for a typical truck air conditioning system?

When installing a gauge hose on a R-134a system the gauge will only read system pressure once:

Refrigerant identifies are used to test the purity of refrigerant in an air conditioning system. What would be the minimum acceptable level of purity?

If charging a vehicle using a refrigerant charging cylinder you may not need to operate the vehicles compressor if the cylinder is equipped with a ____________?

When a technician uses a manifold gauge set to evacuate an air conditioning system what position should the technician position the hand valves in order to evacuate both sides of the system?

Manifold gauge should be calibrated for accuracy on a regular basis. A good quality gauge will be accurate to within ______ over the range of its scale when properly calibrated.

Of the following refrigerant leak detection methods which one would work best for detecting hot or cold leaks?

Which of the following is NOT true when evacuating an air conditioning system?

Identify the INCORRECT procedure when charging and air conditioning system with a manifold gauge set and an accurate weigh scale.

What tool would be the best choice to ensure that there are no leaks in an air conditioning system?

A compressor can be removed from an air conditioning system without removing all the refrigerant from the system if ________ are used.