Mechanical Engineering Gate Yearwise
Mechanical Engineering Gate 2013 Set-2 Questions with Answer
Ques 27 GATE 2013 SET-2
For a ductile material, toughness is a measure of
Ques 28 GATE 2013 SET-2
A cube shaped casting solidifies in 5 min. The solidification time in min for a cube of the same material, which is 8 times heavier than the original casting, will be
Ques 29 GATE 2013 SET-2
A steel bar 200 mm in diameter is turned at a feed of 0.25 mm/rev with a depth of cut of 4 mm. The rotational speed of the workpiece is 160 rpm. The material removal rate in mm3/s is
Ques 30 GATE 2013 SET-2
Customers arrive at a ticket counter at a rate of 50 per hr and tickets are issued in the order of their arrival. The average time taken for issuing a ticket is 1 min. Assuming that customer arrivals form a Poisson process and service times are exponentially distributed, the average waiting time in queue in min is
Ques 31 GATE 2013 SET-2
In simple exponential smoothing forecasting, to give higher weightage to recent demand information, the smoothing constant must be close to
Ques 32 GATE 2013 SET-2
A metric thread of pitch 2 mm and thread angle 60° is inspected for its pitch diameter using 3-wire method. The diameter of the best size wire in mm is
Ques 33 GATE 2013 SET-2
Match the CORRECT pairs.
| Processes | Characteristics / Applications |
| P. Friction Welding | 1. Non-consumable electrode |
| Q. Gas Metal Arc Welding | 2. Joining of thick plates |
| R. Tungsten Inert Gas Welding | 3. Consumable electrode wire |
| S. Electroslag Welding | 4. Joining of cylindrical dissimilar materials |
Ques 34 GATE 2013 SET-2
In a rolling process, the state of stress of the material undergoing deformation is
Ques 35 GATE 2013 SET-2
Consider one-dimensional steady state heat conduction, without heat generation, in a plane wall; with boundary conditions as shown in the figure. The conductivity of the wall is given by k = k0 + bT; where k0 and b are positive constants, and T is temperature.
Ques 36 GATE 2013 SET-2
The pressure, dry bulb temperature and relative humidity of air in a room are 1 bar, 30°C and 70%, respectively. If the saturated steam pressure at 30°C is 4.25 kPa, the specific humidity of the room air in kg water vapour/kg dry air is
Ques 37 GATE 2013 SET-2
For steady, fully developed flow inside a straight pipe of diameter D, neglecting gravity effects, the pressure drop Δp over a length L and the wall shear stress τw are related by
Ques 38 GATE 2013 SET-2
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. If OA = 1 m, the magnitude of the absolute acceleration of the block at location A in m/s2 is
Ques 39 GATE 2013 SET-2
Two threaded bolts A and B of same material and length are subjected to identical tensile load. If the elastic strain energy stored in bolt A is 4 times that of bolt B and the mean diameter of bolt A is 12 mm, the mean diameter of bolt B in mm is
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