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power prep quiz 11
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Preguntas del test (15)
1poor combustion in a diesel engine is due to
- Acold intake air
- Boverhead injectors
- Ccarbon deposits on the injectors
- Dall of the above
- Enone of the above
2Excessive oil consumption on a diesel engine could be the result of:
1. high oil temperature
2. oil diluted with fuel
3. low oil pressure
4. cracked bearings- A1,2
- B1,2,3
- C2,3
- D3,4
- E1,2,3,4
3High oil temperatures in a diesel engine may be caused by:
1. low cooling water temp
2. improper combustion
3. contaminated oil
4. overheated bearings- A1,2
- B1,2,3
- C2,3
- D3,4
- E1,2,3,4
4How many pumps are required in the distributer system for the injection of fuel into a large industrial diesel engine?
- Aone
- Btwo
- Cthree
- Done pump for each cylinder
- Enone of the above
5Where is the oil filter located in a large diesel engine lubricating oil system?
- Ain the crankcase
- Bon the discharge side of the oil cooler
- Cbetween the oil pump and the cooler
- Doil pump suction line
- Ecylinder discharge
6Which systems may be used for injecting fuel into a diesel engine cylinder?
- Adirect and indirect
- Bsolid injection system and carburetion
- Cair injection and turbo injection
- Dsolid injection system and air injection system
- Ecommon system and distributor system
7A fuel injector
- Ahas a fuel injection nozzle
- Binjects fuel and air into the cylinder
- Cinject fuel into the cylinder during the intake stroke
- Dheats the fuel in order to ensure complete combustion
- Einjects fuel vapor into the cylinder
8A carburetor is used to:
1. atomize the fuel
2. heat the fuel
3. produce a vacuum
4. control the fuel/air mixture
5. add carbon to the fuel
6. mix the fuel and air- A1,3,5
- B2,4,6
- C1,2,3,4
- D1,3,4,5
- E1,3,4,6
9The _______ ignition system produces a hotter spark at high speeds:
- Amagnetic
- Bcoil
- Cdistributor
- Dmagneto
- Edynamo
10The coils function in a battery ignition system is to
- Aincrease the current to the plugs
- Bincrease the voltage to the plugs
- Cincrease both the current an voltage to the plugs
- Dincrease the spark across the plugs
- Ecreate a constant voltage to supply the plugs
11The camshaft in a large internal combustion engine may be driven by
1. chain
2. gear
3. belt
4. fluid coupling
5. magnetic clutch
6. conduit- A1,2,3
- B4,5,6
- C1,3,6
- D2,4,6
- E1,2,4
12An oil priming pump on an internal combustion engine is used:
- Aupon shutdown
- Bbefore start-up
- Cduring operation
- Dto fill the crank case
- Eto filter the oil
13Internal combustion engines that incorporate a heat exchanger cooling system are considered
- Aan indirect cooling system
- Ban open circuit cooling system
- Ca closed circuit cooling system
- Da reverse flow cooling system
- Enone of the above
14Overheating an internal combustion engine is caused by:
- Ausing the wrong oil
- Brunning at low speeds
- Cearly fuel injection
- Doil leaks
- Enone of the above
15When cooling is inadequate on an internal combustion engine
- Athe pistons may contract and sieze
- Bthe exhaust valves may become burned
- Cthe oil may solidify
- Dthe oil becomes progressively more viscous
- Eall of the above
Información
- Descripción
- power engineering 3b2 Test sobre power prep quiz 11, creado por TRAVIS CANNING el 28/02/2016.
- Autor
- TRAVIS CANNING
- Idioma
- English
- Visitas
- 11
- Etiquetas
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