4678646
Descripción
Test por TRAVIS CANNING, actualizado hace más de 1 año
|
Creado por TRAVIS CANNING
hace más de 8 años
|
|
Pregunta 1
Pregunta
poor combustion in a diesel engine is due to
Respuesta
-
cold intake air
-
overhead injectors
-
carbon deposits on the injectors
-
all of the above
-
none of the above
Pregunta 2
Pregunta
Excessive 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
Respuesta
-
1,2
-
1,2,3
-
2,3
-
3,4
-
1,2,3,4
Pregunta 3
Pregunta
High oil temperatures in a diesel engine may be caused by:
1. low cooling water temp
2. improper combustion
3. contaminated oil
4. overheated bearings
Respuesta
-
1,2
-
1,2,3
-
2,3
-
3,4
-
1,2,3,4
Pregunta 4
Pregunta
How many pumps are required in the distributer system for the injection of fuel into a large industrial diesel engine?
Respuesta
-
one
-
two
-
three
-
one pump for each cylinder
-
none of the above
Pregunta 5
Pregunta
Where is the oil filter located in a large diesel engine lubricating oil system?
Respuesta
-
in the crankcase
-
on the discharge side of the oil cooler
-
between the oil pump and the cooler
-
oil pump suction line
-
cylinder discharge
Pregunta 6
Pregunta
Which systems may be used for injecting fuel into a diesel engine cylinder?
Respuesta
-
direct and indirect
-
solid injection system and carburetion
-
air injection and turbo injection
-
solid injection system and air injection system
-
common system and distributor system
Pregunta 7
Pregunta
A fuel injector
Respuesta
-
has a fuel injection nozzle
-
injects fuel and air into the cylinder
-
inject fuel into the cylinder during the intake stroke
-
heats the fuel in order to ensure complete combustion
-
injects fuel vapor into the cylinder
Pregunta 8
Pregunta
A 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
Respuesta
-
1,3,5
-
2,4,6
-
1,2,3,4
-
1,3,4,5
-
1,3,4,6
Pregunta 9
Pregunta
The _______ ignition system produces a hotter spark at high speeds:
Respuesta
-
magnetic
-
coil
-
distributor
-
magneto
-
dynamo
Pregunta 10
Pregunta
The coils function in a battery ignition system is to
Respuesta
-
increase the current to the plugs
-
increase the voltage to the plugs
-
increase both the current an voltage to the plugs
-
increase the spark across the plugs
-
create a constant voltage to supply the plugs
Pregunta 11
Pregunta
The 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
Respuesta
-
1,2,3
-
4,5,6
-
1,3,6
-
2,4,6
-
1,2,4
Pregunta 12
Pregunta
An oil priming pump on an internal combustion engine is used:
Respuesta
-
upon shutdown
-
before start-up
-
during operation
-
to fill the crank case
-
to filter the oil
Pregunta 13
Pregunta
Internal combustion engines that incorporate a heat exchanger cooling system are considered
Respuesta
-
an indirect cooling system
-
an open circuit cooling system
-
a closed circuit cooling system
-
a reverse flow cooling system
-
none of the above
Pregunta 14
Pregunta
Overheating an internal combustion engine is caused by:
Respuesta
-
using the wrong oil
-
running at low speeds
-
early fuel injection
-
oil leaks
-
none of the above
Pregunta 15
Pregunta
When cooling is inadequate on an internal combustion engine
Respuesta
-
the pistons may contract and sieze
-
the exhaust valves may become burned
-
the oil may solidify
-
the oil becomes progressively more viscous
-
all of the above
¿Quieres crear tus propios Tests gratis con GoConqr? Más información.