Technician A says a refrigerant identifier is only needed when the technician is unsure of the refrigerant used in an AC system. Technician B says that some refrigerant identifiers can measure the amount of moisture in the refrigerant system to aid in diagnosis. Who is correct?
A. Neither Technicians A nor B
B. Both Technicians A and B
C. Technician A
D. Technician B
Technician A says a refrigerant identifier is only needed when the technician is unsure of the refrigerant used in an AC system
Technician A says that a system should be recharged with refrigerant until the condenser temperature is equal to the ambient temperature plus 100°F. Technician B says that a system should be recharged with the type and amount of refrigerant found on the vehicle's under-hood sticker. Who is correct? A. Technician A B. Technician B C. Both Technicians A and B D. Neither Technician A nor B
Two technicians are discussing refrigerant lines. Technician A says that line connections must be tight but not so tight that air can't get through. Technician B says that all connection O-rings have to be replaced when retrofitting a system to R-134a , Who is correct ?
Technician A says that a micron gauge is a better indicator of vacuum than a gauge calibrated in inches of Hg. Technician B says that the service valve cores are normally removed before evacuating the system. Who is correct? A. Neither Technician A nor B B. Technician B C. Both Technicians A and B D. Technician A
7. 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 percent of the size of the intake valve. Who is correct ? A. Both Technicians A and B B. Technician B Neither Technicians nor B D. Technician A
Technician A says that a micrometer can be used to measure the outside diameter of something. Technician B says that a vernier caliper can be used to measure the inside diameter of a bore. Who is correct? a . Tec A b. Tec B. c.Both A and B. d. Neither A nor B.
Technician A says that if the cooling system has been exposed to the air for more than 24 hours, the drier should be replaced Technician B says that repairs should be made before retrigerant is evacuated from a system. Who is correct? A. Neither Technician A B B. Both Technicians A and B C. Technician B D. Technician A
Technician A says that the airflow default setting in vehicles is defrost, because seeing out the windshield is most important. Technician B says that failure for air to flow through any but the defrost vents is likely caused by a vacuum problem. Who is correct? A. Neither Technician A nor B B. Technician B C. Technician A D. Both Technicians A and B
Two Technicians are discussing automatic transmission/transaxle oil pumps. Technician A says that vane-type pumps are positive displacement pumps. Technician B says that converter drives the pump. Which technician is correct? A. Neither Technician A nor Technician B b. Technician B only C. Technician A only D. Both Technician A and Technician B
Technician A says that the leading shoe lining receives the greatest wear on a leading-trailing shoe brake. Technician B says that leading-trailing brakes are nonservo brakes. Who is correct? A only B only Both A and B Neither A nor B
Question 17 of 20 : Select the best answer for the question 17. Technician A says that electronic leak detectors make a noise when a leak is detected. Technician B says that often the same leak detector can be used for R-12 and R 134a. A. Both Technicians A and B B. Technician A only C. Neither Technician Anor B D. Technician B only O Mark for review (Will be highlighted on the review page) << Previous Question