When testing intake manifold vacuum, the gauge reads normal at idle, but reads very low when the engine is held steady at 2,500 rpm. Technician A says this indicates worn valve guides. Technician B says this indicates a restricted exhaust system. Who is correct?

The higher the astm grain-size number, the coarser the grain is. a)-true b)-false

Have a greater impact on maintenance productivity than any other support group. (clo5) a)-the top management b)-inventory and purchasing c)-sub-contracting d)-cmms

What is the chief metrological difference between measuring with a microscope and with an electronic comparator? a. the microscope is limited to small workpieces.a. the microscope is limited to small workpieces. c. the comparator can only examine one point on the workpiece. d. the microscope carries its own standard.