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Q. The type of weld represented by the shaded region in the figure is (A) groove (B) spot (C) fillet (D) plug Ans: fillet
READ MORE +Q. The type of weld represented by the shaded region in the figure is (A) groove (B) spot (C) fillet (D) plug Ans: fillet
READ MORE +Q. In a linearly hardening plastic material, the true stress beyond initial yielding A. increases linearly with the true strain B. decreases linearly with the true strain C. first increases linearly and then decreases linearly with the true strain D. remains constant Ans: increases ...
READ MORE +Q. Which one of the following statements is correct for a superheated vapour? A. Its pressure is less than the saturation pressure at a given temperature. B. Its temperature is less than the saturation temperature at a given pressure. C. Its volume is less than the volume of the saturated ...
READ MORE +Q. For an Oldham coupling used between two shafts, which among the following statements are correct? Torsional load is transferred along shaft axis. A velocity ratio of 1:2 between shafts is obtained without using gears. Bending load is transferred transverse to shaft axis. Rotation ...
READ MORE +Q. The equation of motion for a spring-mass system excited by a harmonic force is where M is the mass, K is the spring stiffness, F is the force amplitude and w is the angular frequency of excitation. Resonance occurs when w is equal to Ans: Option D
READ MORE +Q. A bar of uniform cross section and weighing 100 N is held horizontally using two massless and inextensible strings S1 and S2 as shown in the figure. The tensions in the strings are Ans: T1 = 0 N and T2 = 100 N
READ MORE +Q. Four red balls, four green balls and four blue balls are put in a box. Three balls are pulled out of the box at random one after another without replacement. The probability that all the three balls are red is (A) 1/72 (B) 1/55 (C) ...
READ MORE +Q. A multi-mode optical fiber with a large core diameter has a core refractive index 𝑛1 = 1.5 and cladding refractive index 𝑛2 = 1.4142. The maximum value of 𝜃𝐴 (in degrees) for which the incident light from air will be guided in the optical fiber is ± . Ans: 29-31
READ MORE +Q. A Michelson Interferometer using a laser source of wavelength 𝜆0 = 500 nm, with both the mirrors (𝑀1& 𝑀2) fixed and positioned equidistant from the splitter/combiner is shown in the figure. When a dielectric plate of refractive index 𝑛 = 1.5, of thickness 𝒕 , is placed in front of the ...
READ MORE +Q. The sampling rate for Compact Discs (CDs) is 44,000 samples/s. If the samples are quantized to 256 levels and binary coded, the corresponding bit rate (in bits per second) is . Ans: 352000
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