我
- A.deliver proper fuel quantity to the injection nozzle
- B.provide rapid fuel injection cutoff
- C.control fuel quantity entering the pump body
- D.control fuel pressure delivered to the combustion chamber
- A.conductivity
- B.viscosity
- C.volume
- D.specific gravity
- A.Exhaust and scavenging
- B.Scavenging and compression
- C.Ignition and expansion
- D.Exhaust and compression
- A.in the presence of oxygen
- B.without oxygen
- C.in the presence of nutrition
- D.without nutrition
- A.provide added wear protection against today’s corrosive quality of fuel
- B.increase overall valve strength due to the high gas pressures
- C.assist in dissipating heat due to the extreme operating temperatures
- D.reduce the overall weight of the valve thus helping eliminate valve spring surge and hammering
- A.more than the working temperature
- B.less than the working temperature
- C.the working temperature
- D.the same as the surrounding temperature
- A.changed accordingly
- B.unchanged
- C.positioned ahead
- D.positioned astern
- A.restriction in refrigerant piping
- B.air and non-condensable gases in the condenser
- C.water in the refrigerant
- D.flooding back of liquid refrigerant from the evaporator
- A.Posting posters illustrating practices
- B.Showing video tapes of actual accidents
- C.Incorporating safety practices in daily routine
- D.Publishing comprehensive safety rules
- A.correct maneuvering
- B.wear
- C.working efficiency
- D.maintenance
