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Q. A frictionless gear train is shown in the figure. The leftmost 12-teeth gear is given a torque of 100 N-m. The output torque from the 60-teeth gear on the right in N-m is (A) 5 (B) 20 (C) 500 (D) 2000 Ans: 2000 ...
READ MORE +Q. A frictionless gear train is shown in the figure. The leftmost 12-teeth gear is given a torque of 100 N-m. The output torque from the 60-teeth gear on the right in N-m is (A) 5 (B) 20 (C) 500 (D) 2000 Ans: 2000 ...
READ MORE +Q. An electrochemical machining (ECM) is to be used to cut a through hole into a 12 mm thick aluminum plate. The hole has a rectangular cross-section, 10 mm × 30 mm. The ECM operation will be accomplished in 2 minutes, with efficiency of 90%. Assuming specific removal rate for aluminum as 3.44 × ...
READ MORE +Q. Block P of mass 2 kg slides down the surface and has a speed 20 m/s at the lowest point, Q, where the local radius of curvature is 2 m as shown in the figure. Assuming g = 10 m/s2, the normal force (in N) at Q is_____________________(correct to two decimal places). Ans: 419.00 - 421.00
READ MORE +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 ...
READ MORE +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 ...
READ MORE +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
READ MORE +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:
READ MORE +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 ...
READ MORE +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 ...
READ MORE +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 ...
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