An overspeed safety device is usually fitted to a generator engine for （） in the event of overspeed.

[单选题]To check the setting of the overspeed trip on a diesel powered generator, you would use a （）.A . tachometerB . torsion meterC . dynamometerD . pony brake

[单选题]Overspeed of the diesel engine driving an electric generator could cause（）.A . low voltage tripB . reverse power tripC . damage to windingsD . excessive exhaust temperature

[单选题]safety beltA．安全带B．安全帽C．救生衣D．安全网

[单选题]safety netA．安全措施B．安全网C．安全帽D．安全防护

[单选题]In the following, the input device is（ ）.A．keyboardB.monitorC.printerD.plotter

[单选题]In the following, the input device is _(72) ．(72)A． keyboardB． monitorC． printerD． plotter

[单选题]In the following, the input device is (72) ．(72)A． keyboardB． monitorC． printerD． plotter

[单选题]Industrial safety does not just happen.Companies with low accident rates pl

[单选题]E．quipment not ______ official safety standards has all been removed from the workshop.A． conforming to B consistent with C predominant over D providing for

[单选题]F．or the sake of the safety, many parents send their kids to school ________.A． by carB． by busC． by trainD． by public transport