3.6 Burner Designs and Supply Systems

Description

Quiz on 3.6 Burner Designs and Supply Systems, created by TRAVIS CANNING on 15/01/2016.
TRAVIS CANNING
Quiz by TRAVIS CANNING, updated more than 1 year ago
TRAVIS CANNING
Created by TRAVIS CANNING about 8 years ago
12
1

Resource summary

Question 1

Question
A low gas pressure cutoff switch ____ the burner from operating when the gas pressure in the supply line drops below the pressure necessary to maintain a stable flame at the burner.
Answer
  • promotes
  • prevents
  • opens
  • raises

Question 2

Question
Reserve storage coal, stocked for extended periods in the open air it will ____ by weathering and also there is an ever-present danger of spontaneous combustion.
Answer
  • mature
  • vaporize
  • deteriorate
  • solidify

Question 3

Question
A spreader stoker distributes the coal onto the surface of a traveling grate with ash discharged at the _____ of the furnace
Answer
  • back
  • front
  • side
  • bottom

Question 4

Question
Screens are fitted in the coal route to the bunkers to remove timber, stone, and oversize coal so that the supply to the ____ mills is kept free
Answer
  • supply
  • pulverizing
  • storage
  • grading

Question 5

Question
The high gas pressure switch contacts are normally _____ whenever the main gas line pressure is below a preset pressure.
Answer
  • Open
  • stable
  • frozen
  • closed

Question 6

Question
An overfeed stoker uses the ______ flow of fuel and air, with fuel flowing downward and air flowing upward.
Answer
  • cocurrent
  • crosscurrent
  • countercurrent
  • undercurrent

Question 7

Question
The heating of heavy fuel oil takes place in ____ stages
Answer
  • three
  • five
  • many
  • two

Question 8

Question
In a _____ stoker, air for combustion is supplied by a forced draft fan an passes up through openings in the grate to the fuel.
Answer
  • overfeed
  • crossfeed
  • traveling
  • spreader

Question 9

Question
The multi-spud burner has ____ spuds or jets connected to a circular manifold.
Answer
  • two
  • five
  • six
  • eight

Question 10

Question
The temperature of the stock should be monitored, because temperatures of ___ deg C and above indicate the threat of fire.
Answer
  • 100
  • 50
  • 200
  • 70
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