DC Boiler Exam Prep 2024 Questions with 100% Complete Solutions, Rated A+
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Course
DC Boiler
Institution
DC Boiler
Area of a rectangle - cORRECT sOLUTION Length x Width
Area of a Circle - cORRECT sOLUTION .7854 x Diameter²
Volume of a Box - cORRECT sOLUTION Length x Width x Height
Volume of a Cylinder - cORRECT sOLUTION .7854 x Diameter² x L...
Celsius to Kelvin - cORRECT sOLUTION K = °C +273.15
Charles' First Law - cORRECT sOLUTION Volume1 / Pressure1 =
Volume2 / Pressure2
Charles' Second Law - cORRECT sOLUTION Pressure1 / Temperature1
= Pressure2 / Temperature2
Boyle's Law - cORRECT sOLUTION Pressure1 x Volume1 = Pressure2
x Volume2
General Gas Law - cORRECT sOLUTION (Pres1 x Vol1)/ Temp1 =
(Pres2 x Vol2)/Temp2
Formula for Levers - cORRECT sOLUTION Resistance x DistanceR =
Effort x DistanceE
, Formula for Inclined Planes - cORRECT sOLUTION Force x Length =
Resistance x Height
Formula for Wheel & Axel - cORRECT sOLUTION Force x DistanceF =
Resistance x DistanceR
Torque - cORRECT sOLUTION Force x Radius
Safe Working Pressure of a Riveted Boiler (SWP) - cORRECT sOLUTION
(Area of Staybolt x Stress Constant of Staybolt) ÷ Area Covered by Staybolt or =
(a x C) ÷ A
Area Covered by Staybolt - cORRECT sOLUTION = Pitch x Pitch
Longitudinal Stress - cORRECT sOLUTION (P x D x L) / 2t
P = Pressure
D = Diameter
L = Length
t = thickness of steel
Boiler Heating Surface (tubes) = - cORRECT sOLUTION =CxLx#
C = Circumference of tubes
L = Length of tubes
# = Number of tubes
HS = π x Diameter x Length x Number of Tubes
Watts per Boiler Horsepower - cORRECT sOLUTION 746 Watts
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