Module 2 Review Exercise

During black iron pipe installation on an heating, ventilation, and air conditioning (HVAC) system, a technical prepares threads. Which material should be applied to ensure a leak free seal?

Teflon tape

After venting a hydronic system a technician tests for trapped air. What indicate remaining air pockets?

Gurgling system noises

A technician installs a sheave on a heating, ventilation, and air conditioning (HVAC) blower and tests the system. What indicates correct sheave adjustments?

Consistent belt tracking

What should a technician monitor during venting of air from a hydronic system?

Hissing sounds and water flow

A technician installs a new flat gasket in a heating, ventilation, and air conditioning (HVAC) system. How should the gasket be secured to prevent leaks?

Tighten bolts uniformly

A technician installs a mechanical seal in a centrifugal pump for a heating, ventilation, and air conditioning system. What ensures proper seal function?

Align seal faces correctly

While replacing a sheave on a belt-driven heating, ventilation, and air conditioning (HVAC) blower, a technician prepares the shaft. Which component should be inspected to prevent installation issues?

Check shaft surface condition

What should a technician measure during fabrication of black iron pipe for an HVAC system?

Pipe length

During maintenance on a heating, ventilation, and air conditioning (HVAC) pump, a technican removes old packing. Which tool is used to extract the packing safely?

Packing extractor

After installing a centrifugal pump on a heating, ventilation, and air conditioning (HVAC) system, a technican tests operation. What indicate proper coupling alignment?

Minimal system vibration