WorksheetsBSE PPT 5 Commercial/Industrial Quiz
Total questions: 15
Worksheet time: 8mins
What is a characteristic of industrial/commercial heating systems compared to domestic ones?
They are less efficient.
They require less maintenance.
They require greater capacity.
They are smaller in size.
What type of system is shown in the diagram?
Two-pipe parallel return system: direct return
Single-pipe system
Three-pipe system
Four-pipe system
How many loads are shown in the diagram?
One
Two
Three
Four
Where is the heat source located in the system?
Cooling tower
Machine room
Outdoor-air processing unit
Ventilation duct
What does the increased pipework in a two-pipe reverse return system lead to?
Decreased pump duty
Increased pump duty
No change in pump duty
Reduced efficiency
In the context of heating systems, what does the term 'low loss header' refer to?
A type of boiler
A component that maintains water velocity
A heat emitter
A water pump
What is the role of low loss headers in maintaining water velocity?
They slow down the water
They maintain water velocity
They stop water flow
They increase water pressure
What is the effect of a low loss header on water flow resistance?
It increases resistance
It eliminates resistance
It reduces resistance
It has no effect on resistance
In the diagram, what does the secondary return do?
It supplies water to the heat source
It returns water from the loads
It filters impurities
It increases water pressure
What is the main advantage of using a low loss header system?
Increased energy consumption
Simplified system balancing
Higher installation costs
Reduced water flow
What is the purpose of a boiler sequencer in a multiple boiler plantroom installation?
To control the order in which boilers operate
To increase the temperature of the water
To reduce the pressure in the system
To filter impurities from the water
What component is used to adjust the flow in the multiple boiler plantroom installation?
Boiler
Compensator
Sequencer
Header
Which component in the diagram is responsible for returning water to the system?
Boiler
Compensator
Return line
Sequencer
What is the effect of mixing the two inlets on the building?
More heat is transferred
Less heat is transferred
The building becomes more humid
The building becomes brighter
What is the purpose of using a three-port valve in a constant temperature/variable volume circuit?
To increase the energy available for transfer
To divert fresh water away from the load
To decrease the temperature of the water
To increase the volume of water
