Self Tests Flashcards
Which firetube boiler is built with a firebox that is not completely surrounded by water?
Firebox boiler
Which boiler consists of an arrangement of drums and headers interconnected by tubes?
Watertube
What should be completed after finishing a service call
Proper service and maintenance log
What is recommended maximum installation height for a horizontal unit heater
3.6m (12’)
What are two types of hot water unit heaters
Blow-through and draw-through
What is the main function of a zone valve in a hydronic heating system?
To stop n start the flow of water to a circuit
What can untreated water cause in a hydronic heating system
Ferrous materials to oxidize
What is the best location for installing baseboard fin
On exterior walls with or without windows
What must be selected prior to installing rough-in piping
Heat transfer units
What is the main function of the adjustable damper on a heat transfer unit
To slow or increase the convection airflow
ODT is a acronym for
Outdoor design temperature
What is heat loss limitation of a series loop system
60-70 MBH
What is the definition of zoning
An area or portion of a heating system served by one or more loops and individually controlled
What is not considered when calculating heat loss
Interior walls of the building
In which direction does heat always travel
From warmer objects to cooler objects
