Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2019 Winter 7th Sem Old 172903 Production Planning And Maintenance Previous Question Paper
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ?VII (Old) EXAMINATION ? WINTER 2019
Subject Code: 172903 Date: 26/11/2019
Subject Name: Production Planning & Maintenance
Time: 10:30 AM TO 01:00 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)
It Is Required To Produce 5000 Kg Of Combed Yarn Of 40'S Ne. Calculate
Total Raw Cotton Required For The Same.
7
(b)
A Twill Woven Fabric Need To Prepare Of About 2600 Meter Length.
Where EPI & PPI Are 50 & 36.Warp And Weft Count Is 32'S, Warp And
Weft Crimp 8%. Calculate Weight Of Warp And Weft Required For This
Lot If Reed Width Is Of 48 Inch.
7
Q.2 (a)
Calculate Required No Of Ring Frame And Speed frame Spindle For The
Production Of 1800 Kg Yarn Of 30's Carded. Where Ring Frame Spindle
Speed 19500 Rpm, Time 8 Hrs, Waste 3%, T.P.I-25, Draft 22, Efficiency
90%. For Speed Frame Flyer Rpm 1400 Efficiency 85% & TPI 1.3
7
(b)
A Comber Machine Running At 450 Nips/Min With Feed/Nip Of 6 Mm.
Calculate No Of Comber Required For A 2500 Kg/Shift. Consider Lap Hank
Of 0.0125 And Noil % Of 12. Efficiency Of Machine Is 80%
7
OR
(b)
Calculate time required for completion of one lap & total number of laps
produced per shift from following data. Speed of lap roller 10 rpm, lap roll
dia 10.5?, length of lap produced 44 yards, cleaning time 0.30 hrs, doffing
time 12 sec.
7
Q.3 (a)
What is break-down maintenance? State different types of maintenance.
Explain the daily, weekly, monthly and quarterly/yearly check points for
comber machines in detail.
7
(b)
Prepare spin plan to produce Combed warp yarn of 70s Ne with T.M of 3.7
and 74s Ne weft with T.M 3.5.Hank of lap is 0.0019
7
OR
Q.3 (a)
A Carding Machine Running At 125 Doffer Rpm With 87% Efficiency.
Sliver Hank 0.089. Calculate Production In Kg/Day
7
(b)
Prepare Spin Plan And Production Schedule For The 1000kg/Shift Combed
Yarn Of 30'S Ne. Consider Suitable Data For A Modern Machine
Combination.
7
Q.4 (a)
State the importance of maintenance in weaving department. Explain the daily,
weekly, monthly and quarterly/yearly check points for automatic weaving
machines in detail.
7
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1
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ?VII (Old) EXAMINATION ? WINTER 2019
Subject Code: 172903 Date: 26/11/2019
Subject Name: Production Planning & Maintenance
Time: 10:30 AM TO 01:00 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)
It Is Required To Produce 5000 Kg Of Combed Yarn Of 40'S Ne. Calculate
Total Raw Cotton Required For The Same.
7
(b)
A Twill Woven Fabric Need To Prepare Of About 2600 Meter Length.
Where EPI & PPI Are 50 & 36.Warp And Weft Count Is 32'S, Warp And
Weft Crimp 8%. Calculate Weight Of Warp And Weft Required For This
Lot If Reed Width Is Of 48 Inch.
7
Q.2 (a)
Calculate Required No Of Ring Frame And Speed frame Spindle For The
Production Of 1800 Kg Yarn Of 30's Carded. Where Ring Frame Spindle
Speed 19500 Rpm, Time 8 Hrs, Waste 3%, T.P.I-25, Draft 22, Efficiency
90%. For Speed Frame Flyer Rpm 1400 Efficiency 85% & TPI 1.3
7
(b)
A Comber Machine Running At 450 Nips/Min With Feed/Nip Of 6 Mm.
Calculate No Of Comber Required For A 2500 Kg/Shift. Consider Lap Hank
Of 0.0125 And Noil % Of 12. Efficiency Of Machine Is 80%
7
OR
(b)
Calculate time required for completion of one lap & total number of laps
produced per shift from following data. Speed of lap roller 10 rpm, lap roll
dia 10.5?, length of lap produced 44 yards, cleaning time 0.30 hrs, doffing
time 12 sec.
7
Q.3 (a)
What is break-down maintenance? State different types of maintenance.
Explain the daily, weekly, monthly and quarterly/yearly check points for
comber machines in detail.
7
(b)
Prepare spin plan to produce Combed warp yarn of 70s Ne with T.M of 3.7
and 74s Ne weft with T.M 3.5.Hank of lap is 0.0019
7
OR
Q.3 (a)
A Carding Machine Running At 125 Doffer Rpm With 87% Efficiency.
Sliver Hank 0.089. Calculate Production In Kg/Day
7
(b)
Prepare Spin Plan And Production Schedule For The 1000kg/Shift Combed
Yarn Of 30'S Ne. Consider Suitable Data For A Modern Machine
Combination.
7
Q.4 (a)
State the importance of maintenance in weaving department. Explain the daily,
weekly, monthly and quarterly/yearly check points for automatic weaving
machines in detail.
7
2
(b)
Prepare Warp & Weft Production Schedules to produce 78,000 kgs of grey
fabric per day having following details :
? Reed/Pick ? 92/52
? Warp/Weft ? 30s/36s
? Fabric Width ? 42 inches
? Weave ? 2/2 twill
7
OR
Q.4 (a)
A mill wants to produce 30000 m of a particular fabric every day. Calculate
number of looms, sizing and warping machines required per shift from
following details.
Fabric Particulars : Warp/Weft : 2/80Ne / 50sNe EPI / PPI: 120 / 96 R.S.: 48
inches
Length contraction: 7%
Loom Shed: Air Jet Loom, RPM / Eff.: 900 / 93%
Sizing: Linear production : 9500 yds per shift per machine
Warping: Linear production : 1.4 lakh yds per shift per machine (max. creel
600 ends)
7
(b)
The Length Of Warp On Warpers Beam Is 33000yards And Number Of
Ends On Beam Is 450. Net Weight Of Yarn On Beam Is 500lbs, Calculate
Count Of Yarn In Ne.
7
Q.5 (a)
Calculate Number Of Loom And Pirn Winding Machine Required For The
Production Of 30000 Yards Of Shirting Fabric/Day. Fabric Particulars:- Tape
Length 106 Yards, Finished Length 100 Yards, Reed Space 50", Warp And
Weft Count 40'S, PPI 40., Loom Data:- 400 Rpm, Effi-90%, Weft Waste
0.25%., Pirn Winding Data:- Speed 1200YPM, Effi-80% & No Of Spindle 24.
7
(b)
Calculate No Of Beams Produced On A Sizing Machine In A Shift From The
Following Data. Speed 50 Mpm, Effi:- 50%, No Of Ends/Beam 2200, Length
Of Warp Sheet/Beam 250 Meter.
7
OR
Q.5
(a)
An Air Jet Loom Running At 800 Rpm For 24 Picks Variety. Calculate Time
Required To Weave 2000 Meter Of Fabric On A Loom With 85%
Efficiency.
7
(b)
A Textile Mill Wants To Produce Fabric Of Following Particulars
7
Warp/Weft : 24s/18s Ne
EPI/PPI : 68/38
R.S. : 157 Cm Length Wise Contraction : 7%
Find Out GSM Of Fabric. Also Work Out Requirement Of Warp And Weft
Yarn Per 100 M Of Fabric.(Ignore Selvedge And Waste)
*************
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This post was last modified on 20 February 2020