Unit 1 Lubrication and bearings
The discharge from the safety valve on a hot oil system is directed to:
Select one:
a. The roof of the boiler house
b. A floor drain
c. The surge tank
d. The pump suction c. The surge tank
In hot oil heaters, hot gases moving through the furnace transfer the heat to:
Select one:
a. The tubes in the conduction section
b. The tubes in the radiant section
c. The economizer tubes
d. The superheater b. The tubes in the radiant section
Usually, ________ installed on a hot oil system.
Select one:
a. Two pumps are
b. Only one pump is
c. Four burners are
d. Three pumps are a. Two pumps are
The raw material used in pulp and paper mills is:
Select one:
,a. Bark
b. Wood
c. Steam
d. Chemicals b. Wood
Wood pulp production by chemical means requires the removal of the _____ in order to obtain
the cellulose fiber.
Select one:
a. Cellulose
b. Sodium sulfite
c. Lignin
d. Tannin c. Lignin
A _____ system uses a thermal fluid in place of steam or water, to conduct heat from a central
source to other vessels and heating coils in a plant.
Select one:
a. Hot oil
b. Condensing
c. Closed
d. Low temperature heating a. Hot oil
Heavy oil recovered using SAGD or CSS is properly referred to as
Select one:
a. bottoms
b. crude
c. tar
,d. bitumen d. bitumen
The inlet of a hot oil pump is located:
Select one:
a. Below the expansion tank
b. Inside the surge tank
c. As close as possible to the heater outlet
d. Above the surge tank a. Below the expansion tank
The hydrocarbons in natural gas may include:
Select one:
a. Hydrogen sulfide
b. Nitrogen
c. Ethane
d. Carbon dioxide c. Ethane
The convection tubes of a horizontal direct-fired hot oil heater are found
Select one:
a. embedded in the refractory lining
b. in the flue gas flow, downstream of the furnace
c. in the firebox
d. in thewindbox b. in the flue gas flow, downstream of the furnace
The purpose of €œcooking€ in a pulp mill is to:
Select one:
a. Heat the wood chips
, b. Remove the fiber from the wood chips
c. Remove the lignin from the wood chips
d. Soften the wood chips c. Remove the lignin from the wood chips
The type of pump normally used with a hot oil system is a:
Select one:
a. Sliding vane pump
b. Rotary screw pump
c. Conventional, single stage centrifugal pump
d. Multistage reciprocating pump c. Conventional, single stage centrifugal pump
The high oil temperature shutdown device of an oil-fired heater senses the:
Select one:
a. Fuel gas temperature
b. Ambient air temperature
c. Combustion gases stack temperature
d. Oil temperature at the furnace outlet d. Oil temperature at the furnace outlet
Chemical pulping processes result in _____ of the raw forest material input.
Select one:
a. the most efficient use
b. an insignificantloss
c. a 50%loss by weight
d. a 25%loss by weight c. a 50%loss by weight
Degradation of heat transfer fluid of a hot oil system will begin to occur if: