Q1.A cube shaped casting solidifies in 5 minutes. The solidification time in minutes for a cube of the same material, which is 8 times heavier than the original casting will be
Q5.Consider one-dimensional steady state heat conduction along x-axis through a plane wall with the boundary surfaces (x = 0 and x = L) maintained at temperatures 0ºC and 100ºC. Heat is generated uniformly throughout the wall. Choose the CORRECT statement.
Answer : Option BExplaination / Solution: No Explaination.
Q6.A cylinder contains 5m3 of ideal gas at a pressure of 1 bar. This gas is compressed in a reversible isothermal process till its pressure increases to 5 bar. The work in kJ required for this process is
Q7.A link OB is rotating with a constant angular velocity of 2 rad/s in counter clockwise direction and a block is sliding radially outward on it with an uniform velocity of 0.75 m/s with respect to the rod, as shown in the figure below. If OA = 1m, the magnitude of the absolute acceleration of the block at location A in m/ S2 is
Q8.A long thin walled cylindrical shell, closed at both ends, is subjected to an internal pressure. The ratio of the hoop stress (circumferential stress) to longitudinal stress developed in the shell is
Q9.Two cutting tools are being compared for a machining operation. The tool life
equations are:
Carbide tool: VT1.6 = 3000
HSS tool: VT0.6 = 200
Where V is the cutting speed in m/min and T is the tool life in min. The carbide
toll will provide higher tool life if the cutting speed in m/min exceeds
Answer : Option BExplaination / Solution: No Explaination.
Q10.Cylindrical pins of mm diameter are electroplated in a shop. Thickness of
the plating is 30+2.0 micron. Neglecting gage tolerances, the size of the GO gage
in mm to inspect the plated components is
Answer : Option BExplaination / Solution:
Go gauge = max. Limit = 25.052
Total Question/Mark :
Scored Mark :
Mark for Correct Answer : 1
Mark for Wrong Answer : -0.5
Mark for Left Answer : 0