Solved question paper for DME May-2023 (B-TECH 5th)
Solved Question Paper
Design of machine elements-1 May-2023
PTU • B-TECH • Mechanical Engineering • 5th • May-2023
design of machine elements-1 previous year question papers on BRpaper are organized for students of Punjab Technical University’s Bachelor of Technology program in the Mechanical Engineering stream, 5th semester. This section makes it easier to browse subject-wise old question papers for design of machine elements-1, so students can review how questions are typically framed in past exams and get a sense of the exam pattern. Many students search for design of machine elements-1 previous year question paper while preparing for exams, and this page is built to support exactly that kind of subject-wise browsing and revision. BRpaper is not the official website of Punjab Technical University or any institution, and it does not publish official notices or academic updates.
These Questions are downloaded from www.brpaper.com. You can also download previous years question papers of 10th and 12th (PSEB & CBSE), B-Tech, Diploma, BBA, BCA, MBA, MCA, M-Tech, PGDCA, B-Com, BSc-IT, MSC-IT.
Solved Questions
Solved-
What is the difference between product design and machine design?Very Short Answer 2 Marks May-2023 • PTU B-TECH
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Discuss the importance of safety in machine design.
Very Short Answer 2 Marks May-2023 • PTU B-TECHExisting answers are stored as HTML; you can edit directly without converting to Markdown.
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Define endurance strength.Very Short Answer 2 Marks May-2023 • PTU B-TECH
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Dec 2024 Define endurance strength.
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What is the significance of fatigue strength?Very Short Answer 2 Marks May-2023 • PTU B-TECH
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Write the key objectives of concurrent engineering.Very Short Answer 2 Marks May-2023 • PTU B-TECH
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What is the role of rivet spacing in joint design?Very Short Answer 2 Marks May-2023 • PTU B-TECH
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How does lubrication impact shaft and axle performance?Very Short Answer 2 Marks May-2023 • PTU B-TECH
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What is the role of keys in power transmission?Very Short Answer 2 Marks May-2023 • PTU B-TECH
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Distinguish between lever and link.Very Short Answer 2 Marks May-2023 • PTU B-TECH
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What is the role of gaskets and seals in pipe joint design?Very Short Answer 2 Marks May-2023 • PTU B-TECH
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Discuss the role of creativity and innovation in the design process for machine elements.
How can designers think outside the box to create unique and effective solutions?Long Answer 8 Marks May-2023 • PTU B-TECHExisting answers are stored as HTML; you can edit directly without converting to Markdown.
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A low carbon steel plate of 0.7 m width welded to a structure of similar material by means of two parallel fillet welds of 0.112 m length (each) is subjected to an accepting load of 4000 N. The line of action of which has a distance of 1.5 m from the centre of gravity of the weld group. Design the required thickness of the plate when the allowable stress of the weld metal is 62 MPa and that of the plate is 42 MPa.Long Answer 8 Marks May-2023 • PTU B-TECH
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Define factor of safety and its importance in engineering design. Discuss, how can designers determine the appropriate factor of safety for different loading conditions, such as static, dynamic and impact loads?Long Answer 8 Marks May-2023 • PTU B-TECH
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Determine the diameter of hollow shaft having inside diameter 0.5 times the outside diameter. The permissible shear stress is limited to 200 MPa. The shaft carries a 900 mm diameter cast iron pulley. This pulley is driven by another pulley mounted on the shaft placed below it. The belt ends are parallel and vertical. The ratio of tensions in the belt is 3. The pulley on the hollow shaft weighs 600 N and overhangs the nearest bearing by 250 mm. The pulley is to transmit 35 kW at 400 r.p.m.Long Answer 8 Marks May-2023 • PTU B-TECH
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Design a compression coupling for a shaft to transmit 1300 N-m. The allowable shear stress for the shaft and key is 40 MPa and the number of bolts connecting the two halves are 4. The permissible tensile stress for the bolts material is 70 MPa. The coefficient of friction between the nut and the shaft surface may be taken as 0.3Long Answer 8 Marks May-2023 • PTU B-TECH
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A foot lever is 1 m from the centre of shaft to the point of application of 910 N load. Find the diameter of the shaft, the dimensions of the key, and the dimensions of rectangular arm of the foot lever at 60 mm from the centre of shaft assuming width of the arm as 3 times thickness. The allowable tensile stress may be taken as 77 MPa and allowable shear stress as 6X MPa.Long Answer 8 Marks May-2023 • PTU B-TECH
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FAQ
Frequently Asked Questions
Answers about this subject, solved papers, and preparation.
01 Where can I find design of machine elements-1 previous year question papers for Bachelor of Technology Mechanical Engineering, 5th semester?
This page lists design of machine elements-1 question papers uploaded for Punjab Technical University Bachelor of Technology Mechanical Engineering, 5th semester, organized for subject-wise browsing where available.
02 Are these official Punjab Technical University question papers?
BRpaper is not the official website of Punjab Technical University. These papers are shared for reference and revision purposes only and are not official university material.
03 How can previous year design of machine elements-1 papers help in exam preparation?
Reviewing past papers can help you understand how questions are typically framed, notice commonly repeated topics, and get a sense of the exam pattern before your own exam.
04 What kind of topics does design of machine elements-1 usually cover?
The question papers here relate to the official design of machine elements-1 syllabus set by the university for this course and semester.
05 Does this page include a design of machine elements-1 previous year question paper or solved answers?
This page focuses on providing access to the previous year question papers themselves. A separate question bank or solved answers may not be available for every paper.
06 Can I find papers for other subjects in the same Bachelor of Technology Mechanical Engineering?
Yes, BRpaper organizes papers by university, course, stream, and semester, so you can browse other subjects within the same Punjab Technical University Bachelor of Technology Mechanical Engineering.