UREs for B set of 3E151 cdcs Vol 2.
Burner cone
Draft chamber
Casing chamber
Combustion chamber
Anti-friction, sleeve, and bronze
Sleeve, thrust, and anti-friction
Plain, thrust, and anti-friction
Thrust, plain, and bronze
Horizontal
Downflow
Gravity
Upflow
Relays
Switches
Thermostats
A heating element
Delayed-action control
Starting control
Ignition control
Limit control
A stoker
An oil burner
A gas burner
A coal hand-fired furnace
Power
Unit size
A gas leak
Unit location
Warped metal
Soot deposits
Blockages
Cracks
Blower
Burner
Pilot
Main
Ceiling
Floor
Room
Wall
Wall
Room
Vented
Unvented
50,000 btu/h
40,000 btu/h
30,000 btu/h
20,000 btu/h
Step-modulating
Single-stage
Two-stage
Manual
Air force bulletins
Air force procedures
Manufacturers' instructions
Local procedures and air force bulletins
Conduction
Convection
Radiation
Absorption
Their very low surface temperature
Their high surface temperature
The porosity of their ceramic elements
The possibility of corrosion damage to the elements
20 to 25*F above the desired room temperature
15 to 20*F above the desired room temperature
10 to 15*F above the desired room temperature
5 to 10*F above the desired room temperature
A strong updraft
A very weak cross draft
Low voltage in the control circuit
Insufficient primary combustion
An open gas valve
A closed gas valve
An open alarm circuit
A closed thermostat circuit
Hot gases
Hot air
Water
Steam
Increase the boiling point
Decrease the boiling point
Increase the molecular count
Decrease the molecular count
Square root of the psi + 14 x 198
Square root of the psi x 14 + 198
198 X 14 + square root of the psi
198 + 14 x the square root of the psi
Downcomer tubes
Side of the drum
Bottom of the drum
Surface blowdown line
Baffles
Tubes
Stays
Drums
Open traps
Flash tanks
Saturated pressure
Pressure release valves
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