Q. Feed rate in slab milling operation is equal to A. rotation per minute (rpm) B. product of rpm and number of teeth in the cutter C. product of rpm, feed per tooth and number of teeth in the cutter D. product of rpm, feed per tooth and number of teeth in contact Ans: product of ...

Q. During solidification of a pure molten metal, the grains in the casting near the mould wall are A. coarse and randomly oriented B. fine and randomly oriented C. fine and ordered D. coarse and ordered Ans: fine and randomly oriented Sol: During solidification of pure metal ...

Q. Denoting L as liquid and M as solid in a phase-diagram with the subscripts representing different phases, a eutectoid reaction is described by A. M 1 → M 2 + M 3 B. L1 → M 1 + M 2 C. L1 + M 1 → M 2 D. M1 + M 2 → M 3 Ans: M 1 → M 2 + M 3

Q. The peak wavelength of radiation emitted by a black body at a temperature of 2000 K is 1.45 µm. If the peak wavelength of emitted radiation changes to 2.90 µm, then the temperature (in K) of the black body is (A) 500                       (B) 1000                     (C) ...

Q. Pre-tensioning of a bolted joint is used to (A) strain harden the bolt head                      (B) decrease stiffness of the bolted joint (C) increase stiffness of the bolted joint        (D) prevent yielding of the thread root Ans: increase stiffness of the bolted joint 

Q. In a single degree of freedom underdamped spring-mass-damper system as shown in the figure, an additional damper is added in parallel such that the system still remains underdamped. Which one of the following statements is ALWAYS true? A. Transmissibility will increase. B. ...

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 ...

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 × ...

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

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