7928Chemical EngineeringMedium
Flexible foam (for mattresses) is usually made of________?
APolyamides
BPVC
CPolyurethanes
DSilicone
Correct answer
C. Polyurethanes
Explanation
The correct answer is Polyurethanes.
Correct answer
C. Polyurethanes
Explanation
The correct answer is Polyurethanes.
To handle smaller quantity of fluid at higher discharge pressure, use a ________ pump?
Babbitt metal used for bearings is a ________base alloy?
Sodium melts (at atmospheric pressure) at a temperature of ________ °C?
Cellulose content in bamboo fibre is about ________ percent?
Lead is poured into the joints between two ________ pipes?
With increase in the alumina content, the refractoriness of high alumina refractories________?