Mechanical Engineering Gate Yearwise
Mechanical Engineering Gate 2013 Set-1 Questions with Answer
Ques 27 GATE 2013 SET-1
In a rolling process, the state of stress of the material undergoing deformation is
Ques 28 GATE 2013 SET-1
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 29 GATE 2013 SET-1
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 30 GATE 2013 SET-1
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-1
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-1
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 33 GATE 2013 SET-1
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 34 GATE 2013 SET-1
For a ductile material, toughness is a measure of
Ques 35 GATE 2013 SET-1
In order to have maximum power from a Pelton turbine, the bucket speed must be
Ques 36 GATE 2013 SET-1
Consider one-dimensional steady state heat conduction along x-axis (0 ≤ x ≤ L), through a plane wall with the boundary surfaces (x=0 and x=L) maintained at temperatures of 0°C and 100°C. Heat is generated uniformly throughout the wall. Choose the CORRECT statement.
Ques 37 GATE 2013 SET-1
A cylinder contains 5 m3 of an 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
Ques 38 GATE 2013 SET-1
A long thin walled cylindrical shell, closed at both the ends, is subjected to an internal pressure. The ratio of the hoop stress (circumferential stress) to longitudinal stress developed in the shell is
Ques 39 GATE 2013 SET-1
If two nodes are observed at a frequency of 1800 rpm during whirling of a simply supported long slender rotating shaft, the first critical speed of the shaft in rpm is
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