Plastic Manufacturing Industry

Diamond Plastics Corporation is a US-based manufacturing company of gasketed PVC pipes founded in:

• 1985

• 1982

• 1980

• 1987

What is the diameter of the largest gasketed PVC pipe made by Diamond Plastics Corporation?

• 80 inches

• 60 inches

• 75 inches

• 55 inches

How many tests must gasketed PVC pipes undergo for quality testing and assurance?

• 5

• 7

• 6

• 8

Aside from PVC resin, which among the following is mainly used to make the PVC gasketed pipes?

• Calcium Carbonate

• Calcium Stearate

• Titanium Dioxide

• Paraffin Wax

It is the most important component of the extrusion machine responsible for building up pressure inside the barrel, as well as for blending and conveying the raw material down the barrel towards the extrusion die.

• skrew extruder

• thermocouples

• motorized drive system

• breaker plate

All of the following are important process metrics in making gasketed PVC pipes EXCEPT:

• pressure

• temperature

• pulling speed

• cutting speed

It is a type of test used for PVC pipes wherein a prepared pipe sample is immersed into acetone and checked for flaking or lifting of the PVC material.

• Burst Pressure Testing

• Stiffness Testing

• Sample Testing

• Fusion Testing

It is a strip insert made out of steel or rubber which helps lock in the gasketed PVC joint in the bell ring groove.

• Rieber Gasket

• Spigot Gasket

• Bell Gasket

• Bieber Gasket

It is responsible for maintaining the shape of the PVC pipe during the initial phases of the extrusion process.

• Water pressure

• Temperature

• Air pressure

• Clamping force

[A] Each spray tank in the cooling process uses recycled water processed within DPC’s facilities to reduce environmental impact. [B] A filleted titanium blade is used to create a beveled connective edge on the spigot end of PVC pipe

• Neither [A] and [B] is True

• [A] is True and [B] is False

• [A] and [B] are both True

• [A] is False and [B] is True