KHIGH PRESSURE BOILERS FINAL
EXAM 12/12/19 COMPLETE DETAILED
CASE STUDY
Boiler fittings are necessary for __________ - - efficiency
To prevent failure from pressure over the MAWP, all steam boilers must be equipped with at least one
__________ - - safety valve
The purpose of a safety valve is to __________ - - prevent the boiler from exceeding its MAWP
Safety valves are designed to __________ - - pop open
When testing a safety valve manually, there must be __________ - - at least 75% of the safety valve
popping pressure on the boiler
Any repairs to the safety valve must be done by the __________ - - manufacturer-authorized
representative
A __________ test is used to test the relief capacity of a safety valve - - accumulation
__________ pressure is the pressure caused by the weight of a column of water - - hyrdrostatic
A cyclone separator is a cylindrical device that separates water droplets from steam using __________ - -
centrifugal force
A steam pressure gauge must be protected by a siphon to prevent __________ - - steam from damaging
the gauge
, The correction factor for hydrostatic pressure is __________ psi per vertical foot - - .433
The boiler vent is open when warming up a boiler until __________ - - there is 10 psi to 25 psi of steam
pressure on the boiler
Separators work on the basic principle of __________ - - changing the direction of steam flow
The dry pipe separator is located in the __________ - - upper part of the steam drum
The ASME Code states that high pressure boilers in battery and equipped with manhole openings must
have __________ - - two main steam stop valves
A main steam stop valve should be a __________ - - os&y gate
Boiler safety valves are placed at the highest part of the __________ - - steam space
During boiler inspection, the main steam stop valves are __________ - - closed, locked, and tagged
A pressure gauge must be recalibrated if it is not accurate to within __________% of the working
pressure - - 2
During normal usage, __________ are used to allow for the expansion and contraction of the main
steam line - - expansion bends
A main steam stop valve should be a gate valve because a gate valve __________ - - offers no resistance
to the flow of steam
A safety valve must be capable of discharging all the steam without the pressure increasing more than
__________% above the maximum MAWP - - 6
EXAM 12/12/19 COMPLETE DETAILED
CASE STUDY
Boiler fittings are necessary for __________ - - efficiency
To prevent failure from pressure over the MAWP, all steam boilers must be equipped with at least one
__________ - - safety valve
The purpose of a safety valve is to __________ - - prevent the boiler from exceeding its MAWP
Safety valves are designed to __________ - - pop open
When testing a safety valve manually, there must be __________ - - at least 75% of the safety valve
popping pressure on the boiler
Any repairs to the safety valve must be done by the __________ - - manufacturer-authorized
representative
A __________ test is used to test the relief capacity of a safety valve - - accumulation
__________ pressure is the pressure caused by the weight of a column of water - - hyrdrostatic
A cyclone separator is a cylindrical device that separates water droplets from steam using __________ - -
centrifugal force
A steam pressure gauge must be protected by a siphon to prevent __________ - - steam from damaging
the gauge
, The correction factor for hydrostatic pressure is __________ psi per vertical foot - - .433
The boiler vent is open when warming up a boiler until __________ - - there is 10 psi to 25 psi of steam
pressure on the boiler
Separators work on the basic principle of __________ - - changing the direction of steam flow
The dry pipe separator is located in the __________ - - upper part of the steam drum
The ASME Code states that high pressure boilers in battery and equipped with manhole openings must
have __________ - - two main steam stop valves
A main steam stop valve should be a __________ - - os&y gate
Boiler safety valves are placed at the highest part of the __________ - - steam space
During boiler inspection, the main steam stop valves are __________ - - closed, locked, and tagged
A pressure gauge must be recalibrated if it is not accurate to within __________% of the working
pressure - - 2
During normal usage, __________ are used to allow for the expansion and contraction of the main
steam line - - expansion bends
A main steam stop valve should be a gate valve because a gate valve __________ - - offers no resistance
to the flow of steam
A safety valve must be capable of discharging all the steam without the pressure increasing more than
__________% above the maximum MAWP - - 6
