To obtain maximum efficiency, two stage air compressors are usually ().
- Ahorizontally mounted
- Bnever fitted with intake filters
- Cfitted with intercoolers
- Doperated in an unloaded condition at all time
To obtain maximum efficiency, two stage air compressors are usually ().
1、In using reduction gears to obtain eff
In using reduction gears to obtain efficient propeller speeds, ().Athey must be located at the after end of the engineBthey can only be used...
2、Radar is not only to obtain(),but also
Radar is not only to obtain(),but also to measure their distance away from you.Abrightness of objectsBcolor of targetsCshape of targetsDbearing of object
3、To obtain accuracy in fixing by DF cro
To obtain accuracy in fixing by DF cross bearings,()should be used.Atwo stations,including one on the nearest coastBtwo stations,including one...
4、Radar is not only to obtain(),but also
Radar is not only to obtain(),but also to measure their distance away from you.Abrightness of obtainBcolor of targetsCshape of targetsDbearing of object
5、What happens to the efficiency of an a
What happens to the efficiency of an anchor when it is moved from sand to mud?()AThe efficiency increasesBThe efficiency decreasesCThe efficiency remains the sameDThe efficiency cannot be determined.
6、Access to a hold can be obtained throu
Access to a hold can be obtained throuth().AforcastleBtweendeckChatchesDpeak tank