FDC - FIRE DEPARTMENT CONNECTION

? WHAT IS AN FDC AND HOW DOES IT WORK IN A FIRE PROTECTION SYSTEM?

An FDC (Fire Department Connection) is an external connection that allows the fire department to connect a fire hose and supplement the building's fire protection water supply during an emergency

AIR VELOCITY CALCULATION - HVAC

Air velocity is the speed at which air moves through a duct, grille, diffuser, or opening.

FORMULA:

V=Q÷A

Where:

V = Air velocity (m/s)

Q = Airflow (m³/s)

A = Cross-sectional area (m²)

Can you complete this equation without using a pen?

What is the value you found for x?

Electrical engineering

FLANGE ALIGNMENT & FLANGE TILT INSPECTION

| Piping QC

Proper flange alignment is an important part of achieving a reliable and leak-free piping joint.

During flange inspection, some of the key points, I focus on include:

Flange face alignment: Confirming the mating faces are properly aligned and suitable for assembly.

Bolt-hole alignment: Ensuring bolt holes line up

correctly and bolts can pass through without excessive force.