Vehicle Inspection第 17 / 120 题
At what pressure should the air compressor governor normally cut out and stop pumping air?
a.Between 60 and 80 psi
b.Between 85 and 100 psi
c.Between 120 and 140 psi
d.Between 150 and 170 psi
解析
The governor typically cuts out somewhere between 120 and 140 psi and cuts back in around 85 to 100 psi. Cutting out at 60 to 80 psi would leave too little reserve, and 150 to 170 psi would over-pressurize the system.
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