更多"High exhaust temperatures from all "的相关试题:
[单项选择]（）is a caing used for exhaust pipe from the engines.
A. The funnel
B. The messroom
C. The galley
D. The satellite antenna
[单项选择]A smoking exhaust from an operating diesel engine could be caused by （）
A. low sulfur content in the fuel
B. a loose injector inlet connection
C. late fuel injection
D. high injection pressure
[单项选择]
Exhaust temperature increases in all cylinders, the possible cause may be（）
(1) increased scavenging air temperature
(2) air in fuel pumps and fuel valves
(3) fouling of air and gas passages
A. (1)+(2)
B. (1)+(3)
C. (2)+(3)
D. (1)+(2)+(3)
[单项选择]The color of the exhaust from a diesel engine should be （）
A. clear
B. hazy light brown
C. hazy light blue
D. hazy light grey
[单项选择]A dark exhaust from a running diesel engine can be caused by （）
A. late ignition
B. water in the fuel
C. high compression temperature
D. starting valve stuck open
[单项选择]High exhaust temperature and black smoke exhausting from an auxiliary diesel engine can be caused by （）.
A. engine overload
B. low combustion temperature
C. plugged fuel nozzle holes
D. excessive compression pressure
[单项选择]High exhaust back pressure will result in an increase in （）
A. turbocharger efficiency
B. engine power output
C. carbon deposits on fuel injectors
D. cylinder scavenging
[单项选择]High firing pressures and a low exhaust temperature in a diesel engine may result from （）.
A. decreased piston to cylinder head clearance
B. increased exhaust system back pressure
C. early fuel injection timing
D. low scavenge air temperature
[单项选择]If exhaust temperatures are too high, you should check （）.
A. air cooler
B. turbocharger
C. charge air
D. A+B+C
[单项选择]Exhaust gases are generally removed from the cylinders of a two-stroke/cycle diesel engine by（）
A. natural aspiration
B. masked intake valves
C. air cells
D. scavenging air
[单项选择]Additional heat extraction from the exhaust gases can be effected by adding an （） section to the unit in plants.
A. air cooler
B. economizer
C. injector
D. air blower
[单项选择]White smoke issuing from the exhaust of an auxiliary diesel engine valve opening （）
A. the engine is overloaded
B. the engine is cold
C. there is too much lube oil in the cylinders
D. the turbocharger is fouled
[单项选择]All items such as steam pipes, exhaust pipes and fittings which, because of their location and operating temperature, present a hazard should be adequately lagged.That means the items should（）
A. not be put into operation too early
B. be pay adequate attention to
C. be used only when necessary
D. be coated with certain material
[单项选择]When subjected to high heat from a open flame, or an electric heating element, which of the listed refrigerants will break down and produce phosgene gas?（）
A. CO2
B. Methyl chloride
C. R-22
D. Sulphur dioxide
[单项选择]What separate the high pressure side from the low pressure side in a refrigeration system?（）
A. Condenser and thermal expansion valve
B. King and solenoid valves
C. Compressor and thermal expansion valve
D. Condenser and solenoid valve
[单项选择]（）uses one or two high pressure pumps for all the cylinders with one more standby, while（）have a separate high-pressure pump for each cylinder.
A. A common rail engine；conventional engines
B. A conventional engine；common rail engines
C. A marine diesel engine；most other engines
D. A two-stroke engine；four-stroke engines
[单项选择]High pressure ridge（）from Sevastopol to eastern Libya.
A. reaching
B. extending
C. increasing
D. upgrading
[单项选择]Water fog from an all-purpose nozzle may be used to（）.
A. fight an electrical fire
B. fight a magnesium fire
C. eliminate smoke from a compartment
D. All of the above
[单项选择]All fines and expenses from insufficiency and inadequacy of packing or marks shall be borne by （）.
A. the carrier
B. the consignee
C. the merchant
D. the owner
