Q. The schematic of an external drum rotating clockwise engaging with a short shoe is shown in the figure. The shoe is mounted at point Y on a rigid lever XYZ hinged at point X. A force 𝐹 = 100 𝑁 is applied at the free end of the lever as shown. Given that the coefficient of friction between the ...

Q. Processing times (including setup times) and due dates for six jobs waiting to be processed at a work centre are given in the table. The average tardiness (in days) using shortest processing time rule is____________________(correct to two decimal places). JobProcessing time (days)Due date ...

Q. The minimum value of 3𝑥 + 5𝑦 such that: 3𝑥 + 5𝑦 ≤ 15 4𝑥 + 9𝑦 ≤ 8 13𝑥 + 2𝑦 ≤ 2 𝑥 ≥ 0, 𝑦 ≥ 0 is_________________. Ans: 0

Q. A bar is compressed to half of its original length. The magnitude of true strain produced in the deformed bar is_____________(correct to two decimal places). Ans:

Q. An orthogonal cutting operation is being carried out in which uncut thickness is 0.010 mm, cutting speed is 130 m/min, rake angle is 15° and width of cut is 6 mm. It is observed that the chip thickness is 0.015 mm, the cutting force is 60 N and the thrust force is 25 N. The ratio of friction ...

Q. The true stress (σ) - true strain ( e ) diagram of a strain hardening material is shown in figure. First, there is loading up to point A, i.e., up to stress of 500 MPa and strain of 0.5. Then from point A, there is unloading up to point B, i.e., to stress of 100 MPa. Given that the Young’s ...

Q. A plane slab of thickness L and thermal conductivity k is heated with a fluid on one side (P), and the other side (Q) is maintained at a constant temperature, TQ of 25°C, as shown in the figure. The fluid is at 45°C and the surface heat transfer coefficient, h, is 10 W/m2K . The steady state ...

Q. An engine working on air standard Otto cycle is supplied with air at 0.1 MPa and 35°C. The compression ratio is 8. The heat supplied is 500 kJ/kg.    Property data for air: cp = 1.005 kJ/kg K, cv = 0.718 kJ/kg K, R = 0.287 kJ/kg K. The maximum temperature (in K) of the cycle ...

Q. Steam flows through a nozzle at a mass flow rate of  m = 0.1kg/s with a heat loss of 5 kW. The enthalpies at inlet and exit are 2500kJ/kg and 2350 kJ/kg, respectively. Assuming negligible velocity at inlet ( C1 » 0 ), the velocity ( C2 ) of steam (in m/s) at the nozzle exit ...

Q. A tank of volume 0.05 m3 contains a mixture of saturated water and saturated steam at 200°C. The mass of the liquid present is 8 kg.  The entropy (in kJ/kg K) of the mixture is (correct to two decimal places). Property data for saturated steam and water are: At 200°C, psat = 1.5538 MPa ...