Centrifugal Chiller Test Questions Flashcards
Find and select the component where the oil pump is located for the compressor oil in Chiller 2.
Chiller 2 compressor oil sump reservoir
Identify the component in the centrifugal machine that the primary purpose is to change steam vapor to condensate in chiller 1
Chiller 1 surface condenser
Identify the Gimble valve of chiller 2.
chiller 2 manual steam valve
Identify the gauge that measures and directly indicates the turbine exhaust pressure.
steam turbine exhaust pressure gauge
A refrigerant leak alarm is sounding off. Where do you look to determine the location or area of the alarm?
Refrigerant monitor leak detection control panel
On chiller 1 you were assigned to change the steam trap because the steam trap is blowing steam through. Select from the toolbar what you would use on the unions to remove and replace the steam trap.
Pipe wrenches
Select the liquid refrigerant isolation valve
liquid line valve
You suspect a refrigerant leak coming from the service valve on top of the evaporator of chiller 2. Select from the toolbar what you would you use to perform a leak check of this component.
Portable leak detector
Identify the component that will directly display the primary steam condenser pressure of chiller 1.
Chiller 1 steam exhaust pressure gauge
Identify and select where the condensate from the steam turbine collects during steam turbine warm up period in chiller 1?
Chiller 1 high temperature condensate tank
Identify and select from left to right the 3 condensate drain valves on the main condensate tank.
Chiller 1 condensate 1/4 turn valve 1, Chiller 1 condensate 1/4 turn valve 2, Chiller 1 condensate 1/4 turn valve 3
(The valves are left to right from the back side)
Find the component that directly displays the higher condenser water temperature on the primary condenser on Chiller 2.
Chiller 2 condenser water return line thermometer
Select the component which will shut off flow to the surface condenser.
Condenser water supply line valve
On chiller 1 identify the line that is carrying the heat load from the building and will cause the refrigerant to boil and turn into a vapor in the primary chiller.
Chiller 1 chill water return line
Identify and select the pressure transducer that transmits city steam pressure entering the turbine.
high pressure steam transducer
(It’s on the pressure gauge not the actual line)
What does the by-pass valve do?
Equalizes the pressure between the condenser and the evaporator
Which pipes are the inlets and outlets for chill and condenser water supply and return lines?
Chill water supply- Outlet
Chill water return- Inlet
Condenser water supply- Inlet
Condenser water return- Outlet
Find the component that transmits data to the control panel to show the pressure of the steam exhaust in Chiller 2.
Chiller 2 steam turbine exhaust pressure transducer
(tiny pressure transducer on the back of steam turbine)
On chiller 1 how many passes does the condenser water make going through the surface condenser.
Odd
On chiller 2 how many passes does the condenser water make going through the primary steam heat exchanger.
Odd
Identify the component that will control the speed of the turbine by regulating the amount of steam entering the steam turbine on chiller 2.
chiller 2 governor valve
Find the component that directly displays the condenser water outlet pressure on Chiller 1.
WRONG: Chiller 1 surface condenser, condenser water return pressure gauge
RIGHT: Chiller 1 condenser water return line pressure gauge
Go to the back view of the chiller and select the switch that would put condensate pump 2 on automatic operation on chiller 1.
Chiller 1 HOA switch condensate pump 2
Identify, locate and select the temperature transducer on the condenser water return line for the condenser.
Wrong: Chiller 1 surface condenser, condenser water return temperature transducer
Right: Chiller 1 condenser water return line temperature transducer
