ME GATE 2013 - Online Test

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
Answer : Option B
Explaination / Solution:



Q2. For a ductile material, toughness is a measure of
Answer : Option B
Explaination / Solution:

Explanations:-
 Since, toughness has ability to absorb energy up to fracture

Q3. Which one of the following options is the closest in meaning to the word given below? Nadir
Answer : Option B
Explaination / Solution:

Nadir in the lowest point on a curve

Q4. In order to have maximum power from a Pelton turbine, the bucket speed must be
Answer : Option B
Explaination / Solution:

Explanation: Since, velocity of bucket = ½ times the velocity of jet.

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 B
Explaination / 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
Answer : Option A
Explaination / Solution:



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
 
Answer : Option C
Explaination / Solution:



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
Answer : Option C
Explaination / Solution:



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 B
Explaination / 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 B
Explaination / Solution:


Go gauge = max. Limit = 25.052