Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2018 Winter 6th Sem New 2162603 Rubber Equipment Design I Previous Question Paper
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ?VI (NEW) EXAMINATION ? WINTER 2018
Subject Code: 2162603 Date:27/11/2018
Subject Name: Rubber Equipment Design-I
Time: 02:30 PM TO 05:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
Q.1 (a) Write the importance of V shaped Chuks in Mixing Mill. 03
(b) List the different safety devices used for Mixing Mill. Write about
any one in detail.
04
(c) Explain in detail about different parts of Mixing mill. 07
Q.2 (a) Write the advantages of Tampered water system in Internal Mixer. 03
(b) Write in brief about Fill factor. 04
(c) Explain the different types of discharge door with their advantages
& disadvantages.
07
OR
(c) Define the purpose of ram in Internal Mixer. Discuss the different
configuration of ram with their advantages, disadvantages &
limitations.
07
Q.3 (a) Write the different causes for thickness variation in Calender Sheet. 03
(b) Discuss in detail about Roller heating for Calender Machine. 04
(c) Discuss the compounding, processing & final product related
problems, their causes & remedies for calendering operation.
07
OR
Q.3 (a) Write the function of Break Shoe, Oil Tank & Roll end gear in
Mixing Mill.
03
(b) Explain the difference between Gaskell & Ardichivli?s assumptions
for calculation of Roll Separating force in Calender Machine.
04
(c) Describe in brief about construction & operation of Calender
Machine, used for different application in Rubber industries.
07
Q.4 (a) List the different parts of power press. Write about any one. 03
(b) Describe about the straight side press. 04
(c) A Hydraulic Press has a ram of 12cm dia. & plunger of 1.5 cm dia.
Determine the load lifted if a force of 294.3 N is applied to the
plunger. If the plunger has a stroke of 20 cm, how many strokes will
be required to lift weight by 0.50 m? Also calculate the volume of
additional liquid required & the power of motor driving the plunger
if the time taken by the press is 15 minutes.
07
OR
Q.4 (a) What ram force is developed in a Hydraulic press if fp = 444.8 N,
Dr = 30.5 cm, Dp =10.2 cm?
03
(b) Which points should be taken into consideration while selecting a
Press?
04
(c) Explain in detail about any three types of mechanism of ram driving
for press.
07
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Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ?VI (NEW) EXAMINATION ? WINTER 2018
Subject Code: 2162603 Date:27/11/2018
Subject Name: Rubber Equipment Design-I
Time: 02:30 PM TO 05:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
Q.1 (a) Write the importance of V shaped Chuks in Mixing Mill. 03
(b) List the different safety devices used for Mixing Mill. Write about
any one in detail.
04
(c) Explain in detail about different parts of Mixing mill. 07
Q.2 (a) Write the advantages of Tampered water system in Internal Mixer. 03
(b) Write in brief about Fill factor. 04
(c) Explain the different types of discharge door with their advantages
& disadvantages.
07
OR
(c) Define the purpose of ram in Internal Mixer. Discuss the different
configuration of ram with their advantages, disadvantages &
limitations.
07
Q.3 (a) Write the different causes for thickness variation in Calender Sheet. 03
(b) Discuss in detail about Roller heating for Calender Machine. 04
(c) Discuss the compounding, processing & final product related
problems, their causes & remedies for calendering operation.
07
OR
Q.3 (a) Write the function of Break Shoe, Oil Tank & Roll end gear in
Mixing Mill.
03
(b) Explain the difference between Gaskell & Ardichivli?s assumptions
for calculation of Roll Separating force in Calender Machine.
04
(c) Describe in brief about construction & operation of Calender
Machine, used for different application in Rubber industries.
07
Q.4 (a) List the different parts of power press. Write about any one. 03
(b) Describe about the straight side press. 04
(c) A Hydraulic Press has a ram of 12cm dia. & plunger of 1.5 cm dia.
Determine the load lifted if a force of 294.3 N is applied to the
plunger. If the plunger has a stroke of 20 cm, how many strokes will
be required to lift weight by 0.50 m? Also calculate the volume of
additional liquid required & the power of motor driving the plunger
if the time taken by the press is 15 minutes.
07
OR
Q.4 (a) What ram force is developed in a Hydraulic press if fp = 444.8 N,
Dr = 30.5 cm, Dp =10.2 cm?
03
(b) Which points should be taken into consideration while selecting a
Press?
04
(c) Explain in detail about any three types of mechanism of ram driving
for press.
07
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Q.5 (a) What is the effect of transient conditions on pressure vessels? 03
(b) Write in brief about Shrink-fit construction. 04
(c) Discuss in detail about the Materials used for manufacturing of High
Pressure Vessels.
07
OR
Q.5 (a) Write a brief note on ?Jackets for vessels?. 03
(b) Write about the effect of normal conditions for pressure vessels. 04
(c) Discuss in detail about Delta ?Ring & Double ?Cone Seal Closures
for Autoclave.
07
*************
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This post was last modified on 20 February 2020