ME GATE 2007 - Online Test

Q1. If a particular Fe-C alloy contains less than 0.83% carbon, it is called
Answer : Option B
Explaination / Solution:
No Explaination.


Q2. Which of the following engineering materials is the most suitable candidate for hot chamber die casting ?
Answer : Option D
Explaination / Solution:
No Explaination.


Q3. Which one of the following is a solid state joining process ?
Answer : Option C
Explaination / Solution:
No Explaination.


Q4. In orthogonal turning of a low carbon steel bar of diameter 150 mm with uncoated carbide tool, the cutting velocity is 90 m/min. The feed is 0.24 mm/rev and the depth of cut is 2 mm. The chip thickness obtained is 0.48 mm. If the orthogonal rake angle is zero and the principle cutting edge angle is 90o, the shear angle in degree is
Answer : Option B
Explaination / Solution:
No Explaination.


Q5. Which type of motor is NOT used in axis or spindle drives of CNC machine tools ?
Answer : Option C
Explaination / Solution:
No Explaination.


Q6. Volume of a cube of side ‘l’ and volume of a sphere of radius ‘r’ are equal. Both the cube and the sphere are solid and of same material. They are being cast. The ratio of the solidification time of the cube to the same of the sphere is
Answer : Option D
Explaination / Solution:
No Explaination.


Q7. Which of the following relationships is valid only for reversible processes undergone by a closed system of simple compressible substance (neglect changes in kinetic and potential energy?)
Answer : Option D
Explaination / Solution:
No Explaination.


Q8. Water has a critical specific volume of 0.003155 / m3 kg. A closed and rigid steel tank of volume 0.025 m3 contains a mixture of water and steam at 0.1MPa. The mass of the mixture is 10 kg. The tank is now slowly heated. The liquid level inside the tank
Answer : Option A
Explaination / Solution:
No Explaination.


Q9. Consider an incompressible laminar boundary layer flow over a flat plate of length L, aligned with the direction of an incoming uniform free stream. If F is the ratio of the drag force on the front half of the plate to the drag force on the rear half, then
Answer : Option D
Explaination / Solution:
No Explaination.


Q10. In a steady flow through a nozzle, the flow velocity on the nozzle axis is given by v = u0(1 + 3x/L), where x is the distance along the axis of the nozzle from its inlet plane and L is the length of the nozzle. The time required for a fluid particle on the axis to travel from the inlet to the exit plane of the nozzle is
Answer : Option B
Explaination / Solution:
No Explaination.