Indian Institute of Technology Madras (IIT-M) 2003 M.Tech Mechanical Engineering mechanical engg-gate - Question Paper

(a) thread milling
(b) thread chasing
(c) thread cutting with single point tool
(d) thread casting
27. As tool and work are not in contact in EDM process
(a) no relative motion occurs ranging from them
(b) no water of tool occurs
(c) no power is consumed during metal cutting
(d) no force ranging from tool and work occurs
28. The dimensional limits on a shaft of 25h7 are
(a) 25.000, 25.021 mm
(b) 25.000, 24.979 mm
(c) 25.000, 25.007 mm
(d) 25.000, 24.993 mm
29. When a cylinder is located in a Vee-block, the number of degrees of freedom which area
arrested is
(a) 2
(b) 4
(c) 7
(d) 8
30. The symbol used for Transport in work-study is
(a)
(b) T
(c) I I
(d) V
ques. No.31 to 80 will carry two marks every
31. Consider the system of simultaneous equations
x + 2y + z = 6
2x + y + 2z = 6
x+y+z =5
The system has
(a) unique solution
(b) infinite number of solutions
(C) no solution
(d) exactly 2 solutions
32. The area enclosed ranging from the parabola y = x2 and the straight line y = x is
(a) eight (b) six (c) three (d) 2
33. The solution of the differential formula + y = 0 is
dx
1 x3
(a) y=

(b) y=—+c
(c) c& x+c
(d) unsolvable as formula is non-Unear
34. The vector field F = xi — yj (where i and j are unit vectors) is:
(a) divergence free, but not irrotational
(b) irrotational, but not divergence free
(c) divergence free and irrotational
(d) neither divergence free nor irrotational
35. Laplace transform of the function sin ot is
S Ci) S Ct)
(a) two 2 (b) two 2 (c) two 2 (d) two 2
s+al s+al s—al s—al
36. A box contains five black and five red balls. 2 balls are randomly picked 1 after a different
from the box, without replacement. The probability for both balls being red is
(a) 90 (b) five (c) 90 (d) 9

Earning:   Approval pending.