A.decrease only
B.increase only
C.decrease slightly then returned to original speed
D.increase slightly then returned to original speed
您可能感興趣的試卷
你可能感興趣的試題
A.speed, torque, and horsepower production
B.firing order, valve timing, and valve lift
C.fuel consumption, efficiency, and cylinder pressure
D.scavenge pressure, compression ratio, and exhaust pressure
A.maintain low pH in the cooling water
B.reduce the cooling water temperature
C.increase cooling water hardness
D.form a protective film on metal surfaces
A.prolong the ignition delay period
B.ensure the beginning of fuel injection
C.thoroughly utilize the air charge
D.allow controlled fuel combustion
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.of a material harder than the cylinder liner
B.properly lubricated
C.prevented from compressing
D.prevented from rotating during engine operation
最新試題
If separating effect is not good, which measure should be taken ()
Cold weather starting of a diesel engine may be made easier by()
The main purpose of port State control is not to()
For a given exhaust gas boiler, what is the quantity of its evaporation mainly determined?()
If two A.C.generators are to be operated in parallel, the load is distributed evenly by()
Which one is NOT the ‘clear grounds’ for a more detailed inspection?()
“Insufficiency of manning or insufficiency of certification of seafarers” is an identification of a()
Flame failure in an automatically fired auxiliary boiler can from a/an ()
Diesel engine air start system check valves are opened by ()
The treatment of the fuel oils involves storage, heating, filtering and()