Mechanical Engineering Answers

Give another example of a crystalline material (both natural and synthetic type) that has similar mechanical and thermal properties as diamond, briefly explain and compare the material with diamond. Your comparison should include the type of bonding, crystal structure, and the melting point of both materials with the support of images.

Suitable specific material suggested to be compared with diamond, with a comprehensive explanation

From the following balances relating to Software India Ltd. prepare the Balance sheet as at 31st December 2005. (a) Equity capital 36,42,58,510 (b) Reserves and surplus 23,58,26,861 (c ) Debentures 1,03,36,000 (d) Secured loans 21,27,57,441 (e) Fixed assets 37,07,93,048 (f) Investments 5,94,80,459 (g) Inventories 20,78,28,095 (h) Sundry debtors 10,21,66,468 (i) Cash and Bank balances 1,49,87,264 (j) Other current assets 57,75,568 (k) Loans and Advances 12,49,59,370 (l) Current Liabilities 4,71,71,358 (m) Provisions 4,64,19,410 (n) Miscellaneous expenditure 3,07,79,308 The balance sheet may be prepared in account form and report form.

A spark ignition engine working on ideal Otto cycle the compression ratio 6. The initial pressure and temperature of air are 1 bar and 37°C. The maximum pressure in the cycle is 30 bar. For unit mass flow, calculate

Design a single plate automobile clutch to transmit a maximum torque of 395 Nm at 2059 rpm. The OD₁ of the clutch is 259 mm and the clutch is engaged at 91 km/h.Engine torque during engagement 141 Nm; Mass of the automobile 1559 kg. Find:

1. Find inertia of both by yourself

2. The number of revolutions of the clutch slip during engagement

3. Heat to be dissipated by the clutch for each engagement.

moment of inertia for clutch design may be calculated by 22 wheels of weight 59 kg

dia being 0.941 m plus 5 hollow tube excels with OD 184 mm and ID 174 mm and length being 6.194 feet. CALCULATE Moment of Inertia of all 22 wheels and 5 hollow tubes using their respective rotating speed. Rotating speed can be calculated by linear speed of vehicle. Calculate overall moment of inertia in kgm² 

Gear reduction ratio at differential 5

Torque at rear wheels available for accelerating automobile 234 Nm

Coefficient of friction for the clutch material 0.3

Permissible pressure 0.13 N/mm²