SAE specifications call for the low-side R-134a servicehose to be

	A)	Solid blue with a black stripe
	B)	Solid blue with no stripe
	C)	Solid blue with a yellow stripe
	D)	Solid black with a blue stripe

SAE Standard J2197 specifies that R-134a service hosefittings for connection to manifold gauge sets shouldbe

	A)	7/16 inch, 20 ACME thread
	B)	1/2 inch, 16 ACME thread
	C)	9/16 inch, 14 ACME thread
	D)	5/8 inch, 12 ACME thread

Motor Vehicle A/C systems using R-12 have flaredthreaded service ports. Service fittings on systems using R-134aemploy:

	A)	The identical size and type of threaded service ports as R-12systems
	B)	The same fittings as used with R-12 systems but with a greenstripe
	C)	10 mm threaded ports
	D)	SAE approved quick couplings without external threads

Carbon dioxide (R-744) is unlikely to be used as arefrigerant because of its _______.

	A)	high GWP
	B)	high flammability
	C)	high working pressure
	D)	difficulty to manufacture

The procedure for determining the presence ofNon-Condensable Gasses in refrigerant contained in an externalrecovery tank utilizes the principle that non-condensable gases____ the pressure of the refrigerant (compared to the saturationpressure).

	A)	Increase
	B)	Decrease
	C)	Have no effect on
	D)	Circulate