An effective braking system for windlasses on rigs in deep water is a(n)().
- Alarger chain stopper
- Bdisc backstopping brake
- Chydraulic clutch
- Delectrical regenerative braking system
An effective braking system for windlasses on rigs in deep water is a(n)().
1、No effective()has been found for this
No effective()has been found for this fatal disease which claims thousands of lives each year.AsettlementBmethodCremedyDprescriptio
2、The effective pump stroke of an indivi
The effective pump stroke of an individual port-and-helix fuel injection pump is determined by the ()Afuel delivery pressureBpump plunger diameterCplunger control rack positionDtotal pump stroke
3、The star-delta starter is an effective
The star-delta starter is an effective method of () voltage starting of a motor.AincreasedBreducedCunchangedDNone of the above
全身作用(systemic effect)
5、Lubricating systems for diesel engines
Lubricating systems for diesel engines are usually designed to initially provide lube oil to the engine ()Acamshaft beatingsBmain bearingsCpiston crownsDcylinder wall
6、An extinguishing agent which effective
An extinguishing agent which effectively cools,dilutes combustible vapors,removes oxygen,and provides a heat and smoke screen is().Acarbon dioxideBHalon 1301Cdry chemicalDwater fog