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4.6 Internal Combustion Engines

Description

power engineering 3b2 Quiz on 4.6 Internal Combustion Engines, created by TRAVIS CANNING on 29/02/2016.
TRAVIS CANNING
Quiz by TRAVIS CANNING, updated more than 1 year ago
TRAVIS CANNING
Created by TRAVIS CANNING almost 9 years ago
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Resource summary

Question 1

Question
Superchargers are
Answer
  • Used to force more air-fuel mixture into the cylinder of a diesel engine
  • Used to force more air only to the cylinder of a gasoline engine
  • Usually of the rotary screw or the centrifugal type
  • used to increase power output
  • never used on gasoline engines

Question 2

Question
The pressure of the air at the end of the diesel compression stroke may be as high as:
Answer
  • 1000 kPa
  • 2000 kPa
  • 500 kPa
  • 4000 kPa
  • 5000 kPa

Question 3

Question
Scavenging is:
Answer
  • The supplying of air for combustion
  • The removal of exhaust gases from the cylinder
  • Used in all diesel engines
  • Usually used in four-stroke cycle engines
  • Re-circulation of exhaust gases to reduce emmisions

Question 4

Question
In a closed-cooling system for an internal combustion engine the:
Answer
  • Pump takes suction directly from the engine
  • Pump is on the low temperature side of the engine
  • Expansion tank is on the water supply side of the engine
  • Cooling water is circulated intermittently
  • Radiator is between the pump discharge and the engine

Question 5

Question
Solid fuel injection systems on IC engines may use which of the following designs or variations: 1. Individual pump 2. Air injection 3. Distributor 4. Common rail
Answer
  • 1,2,3
  • 2,3,4
  • 1,2,4
  • 1,3,4
  • 1,2,3,4

Question 6

Question
In the distributor system for the injection of fuel into a diesel cylinder:
Answer
  • Two pumps are used
  • One common pump is used
  • One pump is used for each cylinder
  • Only a metering pump is used
  • Pumps are not required

Question 7

Question
The wet type of cylinder liner is:
Answer
  • Water cooled
  • Oil cooled
  • Made of white metal
  • Submerged partly in oil
  • Filled with water

Question 8

Question
The camshaft in an internal combustion engine is driven by a/an:
Answer
  • Rocker arm
  • Electric motor
  • Connecting rod
  • Chain or belt
  • Hydraulic pump

Question 9

Question
A magneto ignition system:
Answer
  • Does not require a coil
  • Produces AC power
  • Produces a hotter spark at high speeds
  • Does not require points
  • Does not require a condenser

Question 10

Question
The pressure at the discharge of a supercharger may be as high as:
Answer
  • 100 kPa
  • 120 kPa
  • 10 kPa
  • 30 kPa
  • 140 kPa
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