A double fillet welded joint with parallel fillet weld of length L and length B is subjected to a tensile force P. Assuming uniform stress distribution, the shear stress in the weld is given by

1.  Root2. P

2.  P/2BL

3.  P/√2 BL

4.  2P/BL

4

P/√2 BL

Explanation :
No Explanation available for this question

Consider the following statements: The form factor of a spur gear tooth depends upon the (1) Number of teeth (2) Pressure angle (3) Addendum modification coefficient (4) Circular pitch Of these statements

1.  1 and 3 are correct

2.  2 and 4 are correct

3.  1, 2 and 3 are correct

4.  1 and 4 are correct

4

1, 2 and 3 are correct

Explanation :
No Explanation available for this question

During shearing failure of the key, the area under shear is

1.  Length

2.  Width

3.  Both (a) and (b)

4.   Length and thickness

4

Both (a) and (b)

Explanation :
No Explanation available for this question

The most efficient riveted joint possible is one which would be as strong in tension, shear and bearing as the original plates to be jointed. But this can never be achieved because

1.  Rivets can’t be made with the same material

2.  Rivets are weak in compression

3.  There should be at least one hole in the plate reducing its strength

4.  Clearance is present between the plate and the rivet

4

There should be at least one hole in the plate reducing its strength

Explanation :
No Explanation available for this question

Given P = chain pitch, C = centre distance N, n = number of teeth on large and small sprocket respectively. The length of chain in terms of pitches can be approximated by

1.  2C/P

2.

3.

4.

4

Explanation :
No Explanation available for this question

In rail road car axles, which of the following bearing is used

1.  Partial

2.  Fitted

3.  Full

4.  Linear

4

Partial

Explanation :
No Explanation available for this question

In hydro-static bearing the starting friction is

1.  Very low

2.  More

3.  Either more or less

4.  Uncertain

4

Very low

Explanation :
No Explanation available for this question

Which of the following is self aligning bearing

1.  Conical

2.  Spherical

3.  Rectangular

4.  None of these

4

Spherical

Explanation :
No Explanation available for this question

The silver bearing are used almost exclusively in aircraft engines due to their excellent

1.  Fatigue strength

2.  Wear resistance

3.  Corrosive resistance

4.  None of these

4

Fatigue strength

Explanation :
No Explanation available for this question

Which of the following is maximum capacity bearing

1.  Fatigue strength

2.  Single row bearing

3.  Angular contact bearing

4.  Self aligning bearing

4