Broken intake valve springs on one cyl

1、When the starting air valve closes on

When the starting air valve closes on one cylinder, another starting air valve has （） opened on another cylinder whose piston has just commenced its downward stroke.AjustBnearlyCmerelyDalready

2、The expansion valve on a Freon system

The expansion valve on a Freon system controls the （）.Asuperheat of the gas leaving the compressorBback pressure in the evaporatorCtemperature of the iceboxDsuperheat of the gas leaving the evaporator

3、Bottom blow valves are installed on au

Bottom blow valves are installed on auxiliary water-tube boilers to （）Aremove suspended and precipitated solids from the boiler waterBcompletely...

4、A fire has broken out on the stern of

A fire has broken out on the stern of your vessel. You should maneuver your vessel so the wind（）.Ablows the fire back toward the vesselBcomes over the bowCcomes over the sternDcomes over either beam

5、If the discharge valves on a refrigera

If the discharge valves on a refrigeration compressor are leaking badly, the compressor should （）.Arun continuouslyBnot startChave high discharge pressureDshort cycle on the high pressure switch

6、The intake valves in a diesel engine a

The intake valves in a diesel engine are reseated by （）.Acam followersBpush rodsCcombustion gasesDvalve spring