____ permit for the motion caused by growth and contraction of steam strains from heating and
cooling .
A. Lagging joints
B. Convection valves
C. Bellow plates
D. Expansion bends - ANS-Expansion bends
____ valve is allowed between the boiler shell and the protection valve .
A. An os & y
B. A lever
C. A check
D. No - ANS-No valve
A ___ is a law or minimal requirement .
A. General
B. Code
C. Technical bulletin
D. Advice - ANS-Code
A ____ is using locks , chains , or other physical restraints to prevent the operation of device .
A. Lockout
B. Tagout
C. Allow authorization
D. Restrict form - ANS-Lockout
A boiler steam stress gauge ought to be connected to the ____.
A. Lowest part of the steam aspect
B. Lowest part of the water aspect
C. Maximum a part of the steam side
, D. Highest part of the water aspect - ANS-highest part of the steam side
A boiler that has had a low water circumstance should be____.
A. Thoroughly tested for symptoms of overheating
B. Very well tested for scale buildup
C. Delivered up to complete steam stress to test for leaks
D. Delivered up to the MAWP as soon as possible - ANS-very well examined for signs and
symptoms of overheating
A drop in water degree in a steam boiler causes the automatic feedwater regulator to ____.
A. Near the fuel oil solenoid valve
B. Growth the flow of feedwater
C. Reduce the go with the flow of feedwater
D. Boom the fuel oil to the burner - ANS-growth the drift of feedwater
A fireplace as a result of the ignition of wooden , paper , or textiles is a Class ___ fireplace .
A. A
B. B
C. C
D. D - ANS-Class A fire
A flame scanner is sensitive to ____.
A. Heat
B. Temperature
C. Stress
D. Infrared rays - ANS-infrared rays
A furnace explosion may be due to ____.
A. Extra draft
B. A low steam strain situation
C. An overheated furnace