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As to two-stroke disel engine,in the part of the cylinder liner inside the scavenging air box there is a series of openings known as ______ .
选项：

A: scavenging air ports
B: exhaust ports
C: fuel valves
D: indicator cocks

发布时间：2024-04-25 13:03:02

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相关试题

1.( ) _____ of the A-frames there is a strong cast iron frame called the scavenging air box. 选项： A: At the top B: At the bottom C: In the top D: In the bottom
2._______of the A-frames there is a strong cast iron frame called the scavenging air box.(1.0) 选项： A、At the top B、At the bottom C、In the top D、In the bottom
3.(单选题) ___________of the A-frames there is a strong cast iron frame called the scavenging air box. 选项： A: In the top B: In the bottom C: At the bottom D: At the top
4.The scavenging box is built of a number of sections provided with ____ enabling them to be bolted together to form two blocks. 选项： A:chain transmission B:machine-turned liners C:fuel valves D:vertical vertical flanges
5. A large two-stroke/cycle direct reversing diesel engine is to be reversed. Prior to the admission of starting air, you must_____ 选项： A、 line up the engine for restarting with light diesel oil B、 repo sit the fuel injection cam C、change the intake and exhaust valve cam positions D、 place the starting cam in the intermediate position
6.The scavenging air box ise 选项： A: a strong cast iron frame B: mounted on the bedplate cross girders C:on the flat upper surface of the bedplate D:forming the connection between the crankshaft and the camshaft
7.Compressed air is supplied by air compressors to______. 选项： A.the air receivers B.the starting valves C.the cylinder covers D.the distributors
8.Diesel engine exhaust gas temperatures can be used to determine individual cylinder 选项： A: Performance B: horsepower output C: fuel consumption D: scavenge effect
9.How could the compressor bleed air influence on engine fuel consumption? 选项： A:it may increase fuel consumption B:it has no influence on fuel consumption C:it may reduce fuel consumption
10. Mixture of atomized fuel to the existing hot air into the combustion chamber causes the vaporized fuel _选项： A: to reach its auto-ignition temperature and bum; B: to expel the piston downwards; C: to expel the exhaust gas out.; D: to mix with exhaust gas
11.Failure of fuel injection is usually due to trouble in the （）. 选项： A、exhaust valves B、mechanical lubricators C、cooling water pumps D、fuel injection pum
12.During overhaul, reciprocating engine exhaust valves are checked for stretch 选项： A:with a suitable inside spring caliper. B:with a contour or radius gauge C:by placing the valve on a surface plate and measuring its length with a vernier height gauge.
13.Infrastructure connectivity is the foundation of development through cooperation. We should promote _____ , _____ , _____ and _____ , concentrate our efforts on key passageways, cities and projects, and connect networks of highways, railways, and sea ports 选项： A、land B、maritime C、air D、cyberspace connectivity
14.To successfully reduce an excessively high diesel engine exhaust gas temperature, you should ____ 选项： A:reduce the engine driven fuel pump outlet pressure B:retard the fuel injector timing to reduce power C:increase the fuel rack setting D:reduce the load on the engine
15.Exhaust fumes are a threat to the _to the air we breathe
16.An air compressor is a device that converts power (usually from an electric motor, aDiesel engine or a gasoline engine) into kinetic energy（动能） by compressing andPressurizing air.
17.The scavenging box is built of a number of sections provided with vertical flanges enabling them ____ together to form two blocks.(1.0) 选项： A、being bolted B、bolted C、bolting D、to be bolted

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As to two-stroke disel engine,in the part of the cylinder liner inside the scavenging air box there is a series of openings known as ______ . 选项： A: scavenging air ports B: exhaust ports C: fuel valves D: indicator cocks

As to two-stroke disel engine,in the part of the cylinder liner inside the scavenging air box there is a series of openings known as ______ .
选项：

A: scavenging air ports
B: exhaust ports
C: fuel valves
D: indicator cocks