Kerala PSC Previous Years Question Paper & Answer
Page:15
Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'Workshop Instructor/ Instructor Grade II/ Demonstrator/ Draftsman Grade II in Polymer Technology' And exam conducted in the year 2023. And Question paper code was '099/2023/OL'. Medium of question paper was in Malayalam or English . Booklet Alphacode was ''. Answer keys are given at the bottom, but we suggest you to try answering the questions yourself and compare the key along wih to check your performance. Because we would like you to do and practice by yourself.
Question75:-In an injection molding machine with two plate mold, the maximum
distance between the stationery and moving platen is called
A:-Day light
B:-Cycle
C:-L/O ratio
D:-Runner
Correct Answer:- Option-A
Question76:-The angle formed between the flight and the plane normal to the screw
axis in an extruder is
A:-Helix angle
B:-Land angle
C:-Pitch angle
D:-Taper angle
Correct Answer:- Option-A
Question77:-In extrusion blow molding the ratio of the final tube diameter to
original die diameter is known as
A:-Blow rate
B:-Blown up ratio
C:-Stretch ratio
D:-Throughput
Correct Answer:- Option-B
Question78:-Perison programming in extrusion blow molding is
A:-Adjusting the extrusion screw speed to obtain Parison with uniform
thickness
B:-Adjusting the die to get different wall thickness for parison
C:-Positioning Parison inside the mold
D:-Tuning blowing pressure
Correct Answer:- Option-B
Question79:-Among the polymers given below which polymer is used in reaction
injection molded products.
A:-Nylon 6, 6
B:-Polyurethane
C:-Polyethylene
D:-Polylectic acid
Correct Answer:- Option-B
Question80:-L/O ratio 5 can be used for
A:-Hot feed rubber extruder