# Cold working of steel is defined as working

1.  at its re-crystallization temperature

2.  above its re-crystallization temperature

3.  below its re-crystallization temperature

4.   at two thirds of the melting temperature of the metal

4

below its re-crystallization temperature

Explanation :
No Explanation available for this question

# Quality screw threads are produced by

3.  thread cutting with single point tool

4

Explanation :
No Explanation available for this question

# As tool and work are not in contact in EDM process

1.  no relative motion occurs between them

2.   no water of tool occurs

3.  no power is consumed during metal cutting

4.  no force between tool and work occurs

4

no force between tool and work occurs

Explanation :
No Explanation available for this question

# The dimensional limits on a shaft of 25h7 are

1.  25.000, 25.021 mm

2.  25.000, 24.979 mm

3.  25.000, 25.007 mm

4.  25.000, 24.993 mm

4

25.000, 24.979 mm

Explanation :
No Explanation available for this question

# When a cylinder is located in a Vee-block, the number of degrees of freedom which area arrested is

1.  2

2.   4

3.  7

4.  8

4

7

Explanation :
No Explanation available for this question

# consider the system of simultaneous equations X+2y+z=6 2x+y+2z=6 X+y+z=5 The system has

1.  Unique solution

2.   Infinite number or solutions

3.  No solution

4.  Exactly two solutions

4

No solution

Explanation :
No Explanation available for this question

# The area enclosed between the parabola y = x2 and the straight line y = x is

1.  8

2.  6

3.  3

4.  2

4

6

Explanation :
No Explanation available for this question

# The solution of the differential equation dy/dx+y2=0 is

1.   y=1/x+c

2.   y=-x3/3+c

3.  cex

4.  unsolvable as equation is non-linear

4

y=1/x+c

Explanation :
No Explanation available for this question

# The vector field (where I and j are unit vectors) is:

1.  divergence free, but not irrotational

2.  irrotational, but not divergence free

3.  divergence free and irrotational

4.  neither divergence free nor irrotational

4

divergence free and irrotational

Explanation :
No Explanation available for this question

# laplace transform of the function sin wt is

1.  s/s2+w2

2.  w/s2+w2

3.  s/s2-w2

4.  w/s2-w2

4

w/s2+w2

Explanation :
No Explanation available for this question

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