CHAPTER 6 BOILER FITTINGS AND AIR REMOVAL DEVICES

THE MOST COMMON TYPE OF STEEL PIPING USED FOR BOILER INSTALLATIONS IS

• GALVANIZED STEELPIPE

• SCHEDULE 40 BLACK STEEL PIPE

• SCHEDULE 80 BLACK STEEL PIPE

• REINFORCED COPPER TUBING

WHICH TYPE OF ELBOW FITTING HAS ONE PORT WITH MALE THREADS AND ONE PORT WITH FEMALE THREADS?

• REDUCING ELBOW

• REVERSING ELBOW

• COUPLING ELBOW

• STREET ELBOW

FOR MOST BOILER WATER PIPING,____________COPPER TUBING IS ACCEPTABLE

• TYPE K

• TYPE L

• TYPE M

• TYPE J

COPPER TUBING CAN BE JOINED TOGETHER BY WHICH MEANS?

• BRAZING

• SOLDERING

• FLARING

• ALL OF THE ABOVE

WHICH HEATING APPLICATION IS VERY POPULAR WITH PEX TUBING?

• RADIANT IN-FLOOR HEATING

• WALL-MOUNTED RADIATORS

• FINNED-TUBE BASEBOARD HEATERS

• UNIT VENTILATORS

WHICH SPECIALTY PIPE FITTING IS USED TO PREVENT GALVANIC CORROSION?

• GALVANIC UNION

• BI-METALLIC UNION

• DIELECTRIC UNION

• REDUCING UNION

PVC PIPING THAT IS USED FOR CONDENSATE DRAINS AND FOR VENTING IS CLASSIFIED AS______

• DRAIN-WATER-VENT PIPING

• DRAIN-WASTE-VENT PIPING

• DIELECTRIC-WASTE-VENT PIPING

• DRAIN-WASTE-VOLUME PIPING

WHY HAVE SOME STATES OUTLAWED THE USE OF PVC PIPING FOE BOILER VENTING?

• IT REQUIRES GLUED JOINTS

• SOME FLUE GAS TEMPERATURES MAY EXCEED THE RECOMMENDED OPERATING TEMPERATURE

• IT WILL NOT HOLD UP IN THE PRESENCE OF CARBON MONOXIDE

• IT IS ONLY RECOMMENDED FOR USE WITH PLUMBING FIXTURES

PRESSURE/TEMPERATURE GAUGES SHOULDBE INSTALLED ON THE RETURN SIDE OF THE BOILER

• TRUE

• FALSE

ONE ISSUE WITH COMPRESSION-TYPE TANKS IS THAT THE WATER AND AIR WITHIN THE TANK ARE IN DIRECT CONTACT WITH EACH OTHER

• TRUE

• FALSE