DC Boiler Exam Prep 2024 (Formulas and
constants used for the DC 3rd class boiler exam)
DC Boiler Exam Prep 2024 (Formulas and
constants used for the DC 3rd class boiler exam)
DC Boiler Exam Prep 2024 (Formulas and
constants used for the DC 3rd class boiler exam)
DC Boiler Exam Prep 2024 (...
Celsius to Fahrenheit - ANSWER--°F = (1.8 x °C) - 32
Fahrenheit to Rankine - ANSWER--°R = °F + 460
Celsius to Kelvin - ANSWER--K = °C +273.15
Charles' First Law - ANSWER--Volume1 / Pressure1 = Volume2 / Pressure2
Charles' Second Law - ANSWER--Pressure1 / Temperature1 = Pressure2 /
Temperature2
Boyle's Law - ANSWER--Pressure1 x Volume1 = Pressure2 x Volume2
General Gas Law - ANSWER--(Pres1 x Vol1)/ Temp1 = (Pres2 x Vol2)/Temp2
Formula for Levers - ANSWER--Resistance x DistanceR = Effort x DistanceE
Formula for Inclined Planes - ANSWER--Force x Length = Resistance x Height
, DC Boiler Exam Prep 2024 (Formulas and
constants used for the DC 3rd class boiler exam)
Formula for Wheel & Axel - ANSWER--Force x DistanceF = Resistance x DistanceR
Torque - ANSWER--Force x Radius
Safe Working Pressure of a Riveted Boiler (SWP) - ANSWER--(Area of Staybolt x
Stress Constant of Staybolt) ÷ Area Covered by Staybolt or = (a x C) ÷ A
Area Covered by Staybolt - ANSWER--= Pitch x Pitch
Longitudinal Stress - ANSWER--(P x D x L) / 2t
P = Pressure
D = Diameter
L = Length
t = thickness of steel
Boiler Heating Surface (tubes) = - ANSWER--= C x L x #
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 - ANSWER--746 Watts
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