更多"Clogged or partially obstructed exh"的相关试题:
[单项选择]The exhaust ports of a diesel engine using the cross-flow scavenging method are opened and closed by the （）
A. reciprocating motion of exhaust valves
B. rotary motion of the camshaft
C. reciprocating motion of the piston
D. developed differential
[单项选择]The exhaust ports are located around the lower part of the cylinder liner, （）the products of combustion are driven by scavenging air.
A. in which
B. by which
C. through which
D. from which
[单项选择]A dry-type exhaust muffler clogged with soot, will cause（）
A. low exhaust temperature
B. loss of engine power
C. burned intake valves
D. engine racing
[单项选择]Clogged diesel engine fuel oil filters can cause（）
A. loss of power
B. misfiring
C. low fuel oil pressure
D. All of the above
[单项选择]All lighterage in or off ports of loading or ports of discharge shall be for the account of （）.
A. the carrier
B. the merchant
C. the owner
D. the shipper
[单项选择]Pyrometers commonly found on diesel engine exhaust systems, consist of（）
A. pyrostats and a voltmeter
B. a gas-filled bellows, a tube and a pressure gauge
C. thermocouples and a voltmeter
D. ammeters and thermocouples
[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]Icreasing the exhaust valve tappet clearance of a diesel engine will result in the exhaust valve opening （）
A. later and closing earlier
B. later and closing later
C. earlier and closing earlier
D. earlier and closing later
[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]If a diesel engines exhaust temperature is abnormally high, the cause could be（）
A. too light of a load
B. injection timing is too early
C. overloading of the engine
D. too low of a compression ratio
[单项选择]Aburned exhaust valve may be detected by a higher than normal （）
A. firing pressure
B. exhaust temperature from a particular cylinder
C. cooling water temperature
D. compression pressure
[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]One of the purposes for water cooling the exhaust manifold in marine diesel engine is to （）
A. reduce lube oil temperature
B. raise exhaust temperature reduce
C. excessive heating of engine room
D. reduce load on cooling water pump
[单项选择]The process of loop scavenge is that the exhaust will be via ports （） the air ports and controlled by the same piston.
A. behind
B. far from
C. adjacent to
D. in front of
[单项选择]（） are fitted in the exhaust system and facilitate charge removal and scavenging in each cylinder.
A. Diffusers
B. Compressors
C. Steam boilers
D. Soot blowers
[单项选择]According to the way the energy of the exhaust gases is utilized, pressure-charging can be divided into two main systems, namely, the constant-pressure system and （）.
A. the pulse-phase system
B. the pulse Doppler system
C. the pulse system
D. the pulse interval
[单项选择]What color exhaust will be exhibited when a slow speed two-stroke/cycle main propulsion diesel engine, designed to operate on light and heavy fuel oil, is operated on insufficiently preheated heavy fuel oil?（）
A. White
B. Black
C. Blue
D. Clear
[单项选择]The closing of the exhaust valves used on a modern, large, low-speed, main propulsion diesel engine may be directly provided by （）.
A. large conical springs
B. compressed air pressure
C. hydraulic pressure
D. exhaust gas pressure
[单项选择]A partially full tank causes a virtual rise in the height of the（）.
A. metacenter
B. center of buoyancy
C. center of flotation
D. center of gravity
