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- Question 1 of 16
Consider the function f (x) = |x| in the interval -1<=x<=1. At the point x = 0, f(x) isCorrectIncorrect
- Question 2 of 16
At x = 0, the function f(x) = x*x*x +1 hasCorrectIncorrect
- Question 3 of 16
The area enclosed between the straight line y = x and the parabola y = x*x in the x-y plane isCorrectIncorrect
- Question 4 of 16
For a long slender column of uniform cross section, the ratio of critical buckling load for the case with both ends clamped to the case with both ends hinged isCorrectIncorrect
- Question 5 of 16
A thin walled spherical shell is subjected to an internal pressure. If the radius of the shell is increased by 1% and the thickness is reduced by 1%, with the internal pressure remaining the same, the percentage change in the circumferential (hoop) stress isCorrectIncorrect
- Question 6 of 16
A cantilever beam of length L is subjected to a moment M at the free end. The moment of inertia of the beam cross section about the neutral axis is I and the Young’s modulus is E. The magnitude of the maximum deflection isCorrectIncorrect
- Question 7 of 16
A circular solid disc of uniform thickness 20 mm, radius 200 mm and mass 20 kg, is used as a flywheel. If it rotates at 600 rpm, the kinetic energy of the flywheel, in Joules isCorrectIncorrect
- Question 8 of 16
Steam enters an adiabatic turbine operating at steady state with an enthalpy of 3251.0 kJ/kg and leaves as a saturated mixture at 15 kPa with quality (dryness fraction) 0.9. The enthalpies of the saturated liquid and vapor at 15 kPa are hf = 225.94 kJ/kg and hg = 2598.3 kJ/kg respectively. The mass flow rate of steam is 10 kg/s. Kinetic and potential energy changes are negligible. The power output of the turbine in MW isCorrectIncorrect
- Question 9 of 16
An ideal gas of mass m and temperature T1 undergoes a reversible isothermal process from an initial pressure P1 to final pressure P2. The heat loss during the process is Q. The entropy change S of the gas isCorrectIncorrect
- Question 10 of 16
For an opaque surface, the absorptivity a , transmissivity b and reflectivity c are related by the equationCorrectIncorrect
- Question 11 of 16
Which one of the following configurations has the highest fin effectiveness?CorrectIncorrect
- Question 12 of 16
Oil flows through a 200 mm diameter horizontal cast iron pipe (friction factor, f = 0.0225) of length 500 m. The volumetric flow rate is 0.2 m3/s. The head loss (in m) due to friction is (assume g = 9.81 m/s2) (read m3 as m cube and s2 as sec square)CorrectIncorrect
- Question 13 of 16
A solid cylinder of diameter 100 mm and height 50 mm is forged between two frictionless flat dies to a height of 25 mm. The percentage change in diameter isCorrectIncorrect
- Question 14 of 16
A CNC vertical milling machine has to cut a straight slot of 10 mm width and 2 mm depth by a cutter of 10 mm diameter between points (0, 0) and (100, 100) on the XY plane (dimensions in mm). The feed rate used for milling is 50 mm/min. Milling time for the slot (in seconds) isCorrectIncorrect
- Question 15 of 16
Match the following metal forming processes with their associated stresses in the workpiece.
Metal forming process Type of stress
1. Coining P. Tensile
2. Wire Drawing Q. Shear
3. Blanking R. Tensile and compressive
4. Deep Drawing S. CompressiveCorrectIncorrect
- Question 16 of 16
During normalizing process of steel, the specimen is heatedCorrectIncorrect