Boilers License Practice Test #1
Questions with Correct Answers
An aquastat stops and starts a burner by sensing the ___ temperature. -
ANSWERSBOILER WATER
The number of blowdowns required for a boiler can be determined by ___. -
ANSWERStesting the boiler water
Oxygen in a boiler causes ___. - ANSWERSPITTING
Impurities on the water surface in a steam and water drum are best removed by ___
blowdown. - ANSWERSSURFACE
A modulating pressure control on a steam boiler is used to control the ___. -
ANSWERShigh and low fire ranges
A(n) ___ is a boiler water treatment accessory that heats feedwater to the temperature
of saturated steam within the pressure vessel. - ANSWERSdeaerator
When a boiler reaches a pressure above the safety valve setting, the operator must first
___. - ANSWERSsecure the boiler
The first thing a boiler operator should do when taking over a shift is check the ___ for
each boiler that is operating. - ANSWERSwater level in the gauge glass
A boiler generating 20,000 lb/hr of steam must be supplied with at least ___ of
feedwater. - ANSWERS20,000 lb/hr
When starting a boiler and bringing it on-line in battery with another boiler, the main
steam stop valve should be opened ___ than the header pressure. - ANSWERSslowly
when the boiler pressure is slightly less
As a precaution when giving a boiler a bottom blowdown, boiler operators should ___. -
ANSWERSalways check the boiler water level
On a boiler under steam pressure, if the top gauge glass fitting from the water column is
blocked, then the water level in the gauge glass will ___ if the water level in the boiler
remains constant. - ANSWERSINCREASE
When a boiler is being cleaned, repaired, or inspected, the main steam stop valve must
be ___. - ANSWERStightly closed, locked, and tagged out
Questions with Correct Answers
An aquastat stops and starts a burner by sensing the ___ temperature. -
ANSWERSBOILER WATER
The number of blowdowns required for a boiler can be determined by ___. -
ANSWERStesting the boiler water
Oxygen in a boiler causes ___. - ANSWERSPITTING
Impurities on the water surface in a steam and water drum are best removed by ___
blowdown. - ANSWERSSURFACE
A modulating pressure control on a steam boiler is used to control the ___. -
ANSWERShigh and low fire ranges
A(n) ___ is a boiler water treatment accessory that heats feedwater to the temperature
of saturated steam within the pressure vessel. - ANSWERSdeaerator
When a boiler reaches a pressure above the safety valve setting, the operator must first
___. - ANSWERSsecure the boiler
The first thing a boiler operator should do when taking over a shift is check the ___ for
each boiler that is operating. - ANSWERSwater level in the gauge glass
A boiler generating 20,000 lb/hr of steam must be supplied with at least ___ of
feedwater. - ANSWERS20,000 lb/hr
When starting a boiler and bringing it on-line in battery with another boiler, the main
steam stop valve should be opened ___ than the header pressure. - ANSWERSslowly
when the boiler pressure is slightly less
As a precaution when giving a boiler a bottom blowdown, boiler operators should ___. -
ANSWERSalways check the boiler water level
On a boiler under steam pressure, if the top gauge glass fitting from the water column is
blocked, then the water level in the gauge glass will ___ if the water level in the boiler
remains constant. - ANSWERSINCREASE
When a boiler is being cleaned, repaired, or inspected, the main steam stop valve must
be ___. - ANSWERStightly closed, locked, and tagged out
