FirstRanker.com
Firstranker's choice
Roll No. [T Total No. of Pages : 02
--- Content provided by FirstRanker.com ---
Total No. of Questions : 09B.Tech (ME) (Sem.-6)
MACHINE DESIGN-II
Subject Code : ME-302
M.Code : 59053
--- Content provided by FirstRanker.com ---
Time : 3 Hrs. Max. Marks : 60 INSTRUCTIONS TO CANDIDATES :
1. SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks each.
2. SECTION-B contains FIVE questions carrying FIVE marks each and students have to attempt any FOUR questions.
3. SECTION-C contains THREE questions carrying TEN marks each and students have to attempt any TWO questions.
--- Content provided by FirstRanker.com ---
SECTION-A
Q1. Write briefly :
- In the context of wire rope, what 6 x 19 represents?
- What is nipping of leaf springs?
- What do you mean by simplex and duplex chains?
- What do you mean by de-energizing brake?
- Define module and pitch diameter of a gear.
- What does a 3D model in CAD represent?
- Define “coefficient of functional energy” for a flywheel.
- Give three usages of conical helical springs.
- Explain fast and loose pulley with neat sketch.
- What is the significance of sommerfield number in sliding contact bearing?
--- Content provided by FirstRanker.com ---
--- Content provided by FirstRanker.com ---
FirstRanker.com
Firstranker's choice
SECTION-B
--- Content provided by FirstRanker.com ---
Q2. Discuss various important factors on which a particular drive for power transmission depends?
Q3. Discuss various types of stresses induced in a flywheel rim.
Q4. Explain the basic theory and structure of CAD software.
Q5. Give the complete general design procedure for flat belt drive along with pulley, shaft and keys.
Q6. Explain in detail what are different failure modes of the gears?
--- Content provided by FirstRanker.com ---
SECTION-C
Q7. Discuss and derive basic Lewis equation used in designing of gears.
Q8. A single cylinder double acting steam engine develops 150 KW at a mean speed of 80 r.p.m. The coefficient of energy is 0.1 and the fluctuation of speed is ±2% of mean speed. If the mean diameter of the flywheel rim is 2 metre and the hub and spoke provide 5% of the rotational inertia of the flywheel, find the mass of the flywheel and cross-sectional area of the rim. Assume the density of the flywheel material (cast iron) as 7200kg/m³.
Q9. How ball and roller bearing are designated and specify the conditions that suitably select one bearing amongst the ball, roller and needle bearing?
NOTE : Disclosure of Identity by writing Mobile No. or Making of passing request on any page of Answer Sheet will lead to UMC against the Student.
--- Content provided by FirstRanker.com ---
This download link is referred from the post: PTU B.Tech Question Papers 2020 March (All Branches)
--- Content provided by FirstRanker.com ---