what are the three "T's" of combustion?
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, 1) time
2) temperature
3) turbulence
what is a non-return valve?
-----
where is it located?
-----
why does it have a drain?
Give this one a try later!
automatic stop check valve to prevent a back-flow of steam when the boiler
pressure falls below that of the header
-----
as close to the boiler as possible and between the boiler and the header
valve.
-----
to remove condensate
what is a safety valve?
-----
how does it operate?
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, a device to EXPEL ALL EXCESS steam pressure from a boiler
-----
the huddling chamber causes the valve to open fully and quickly causing a
definite drop in pressure before closing
what is a fire tube boiler?
-----
list 5 advantages
-----
list 5 disadvantages
-----
name 4 types
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in a fire tube boiler, products of combustion pass through tubes or flues
surrounded by water.
-----
ADVANTAGES:
1) very little setting required
2) factory assembled for fast installation
3) low initial cost
4) can be made portable
5) compact
-----
DISADVANTAGES:
1) slow steamers
2) limited in pressure and capacity
3) liable to disastrous explosions because drums and joints are set over the
fire
4) inefficient
5) inaccessible for inspection
-----
TYPES:
1) H.R.T.
, 2) locomotive
3) Scotch Marine
4) Vertical fire tube
what is a confined space and name 3
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a space large enough to physically enter but has limited or restricted entry
and exit and is not designed for continued occupancy
1) combustion chamber
2) boiler shell
3) fuel oil tank
4) coal bunker
5) DA tank
what is a voltmeter and how is it connected?
----
what is an ammeter and how is it connected?
----
what is an ohmmeter and how is it connected?
----
what are the last 2 items checked before connecting any meters?
Give this one a try later!
Give this one a try later!
, 1) time
2) temperature
3) turbulence
what is a non-return valve?
-----
where is it located?
-----
why does it have a drain?
Give this one a try later!
automatic stop check valve to prevent a back-flow of steam when the boiler
pressure falls below that of the header
-----
as close to the boiler as possible and between the boiler and the header
valve.
-----
to remove condensate
what is a safety valve?
-----
how does it operate?
Give this one a try later!
, a device to EXPEL ALL EXCESS steam pressure from a boiler
-----
the huddling chamber causes the valve to open fully and quickly causing a
definite drop in pressure before closing
what is a fire tube boiler?
-----
list 5 advantages
-----
list 5 disadvantages
-----
name 4 types
Give this one a try later!
in a fire tube boiler, products of combustion pass through tubes or flues
surrounded by water.
-----
ADVANTAGES:
1) very little setting required
2) factory assembled for fast installation
3) low initial cost
4) can be made portable
5) compact
-----
DISADVANTAGES:
1) slow steamers
2) limited in pressure and capacity
3) liable to disastrous explosions because drums and joints are set over the
fire
4) inefficient
5) inaccessible for inspection
-----
TYPES:
1) H.R.T.
, 2) locomotive
3) Scotch Marine
4) Vertical fire tube
what is a confined space and name 3
Give this one a try later!
a space large enough to physically enter but has limited or restricted entry
and exit and is not designed for continued occupancy
1) combustion chamber
2) boiler shell
3) fuel oil tank
4) coal bunker
5) DA tank
what is a voltmeter and how is it connected?
----
what is an ammeter and how is it connected?
----
what is an ohmmeter and how is it connected?
----
what are the last 2 items checked before connecting any meters?
Give this one a try later!
