Which of the following materials is mostly used for making of thermoforming moulds?(a) Steel(b) Grey cast iron(c) Aluminium(d) White cast ironThe question was asked during an online exam.This question is from Blow Moulding and Thermoforming in chapter Moulding with Polymers of Casting-Forming-Welding II

Which of the following materials is mostly used for making of thermofo

1.	Which of the following materials is mostly used for making of thermoforming moulds?(a) Steel(b) Grey cast iron(c) Aluminium(d) White cast ironThe question was asked during an online exam.This question is from Blow Moulding and Thermoforming in chapter Moulding with Polymers of Casting-Forming-Welding II
Answer» Correct answer is (c) Aluminium To explain: Thermoforming moulds are always made of aluminum because of its light WEIGHT, machine ability, and good thermal conductivity. Aluminum moulds may also contain passages through which WATER can be PUMPED for cooling of components, which may greatly AFFECT the shrinkage and other FEATURES of the components made.

Discussion

No Comment Found

Related InterviewSolutions

In the extrusion process, a water cooling system is used which automatically controlled by a sensor.(a) True(b) FalseThis question was addressed to me during an interview.This question is from Extrusion in Polymers in chapter Moulding with Polymers of Casting-Forming-Welding II
Extruder die is a machine part that gives final shape to the polymer material used in the extrusion process.(a) True(b) FalseI had been asked this question by my college director while I was bunking the class.My question is based upon Extrusion in Polymers topic in division Moulding with Polymers of Casting-Forming-Welding II
In the extrusion process, a cast type barrel is mainly used for the heating of polymer material.(a) True(b) FalseThe question was asked in a national level competition.I want to ask this question from Extrusion in Polymers in portion Moulding with Polymers of Casting-Forming-Welding II
Multiple screw extruders are mostly preferred than the single screw extruders in the extrusion process.(a) True(b) FalseThis question was addressed to me in an online quiz.My enquiry is from Extrusion in Polymers topic in section Moulding with Polymers of Casting-Forming-Welding II
Continuous type of extruder is generally equipped with rotating parts in the extrusion process.(a) True(b) FalseThis question was posed to me by my college director while I was bunking the class.Question is from Extrusion in Polymers topic in division Moulding with Polymers of Casting-Forming-Welding II
Extruder is a device used for the finishing of processed polymer products in the extrusion process.(a) True(b) FalseI had been asked this question during a job interview.This is a very interesting question from Extrusion in Polymers topic in portion Moulding with Polymers of Casting-Forming-Welding II
Thermosetting polymers can be processed by extrusion process by forming cross-linking in the extruder.(a) True(b) FalseThis question was addressed to me in quiz.This question is from Extrusion in Polymers in section Moulding with Polymers of Casting-Forming-Welding II
Which of the following equipment is used for controlling the temperature of polymer material in the extrusion process?(a) Thermo resister(b) Thermometer(c) Thermocouple(d) Glass tubeI have been asked this question in an interview.My enquiry is from Extrusion in Polymers in portion Moulding with Polymers of Casting-Forming-Welding II
In processing polymers, injection moulding process is almost similar to extrusion process except for the screw operation.(a) True(b) FalseI have been asked this question during an interview.This key question is from Extrusion in Polymers topic in portion Moulding with Polymers of Casting-Forming-Welding II
Extrusion is a process that uses an electric system for processing various polymers.(a) True(b) FalseI have been asked this question during an interview.I'd like to ask this question from Extrusion in Polymers topic in section Moulding with Polymers of Casting-Forming-Welding II

Discussion

No Comment Found

Related InterviewSolutions

Reply to Comment