The operation of producing cup shaped parts from flat sheet metal blanks by bending and plastic flow of metal, is known as

The bending moment at a section tends to bend or deflect the beam and the internal stresses resist its bending. The resistance offered by the internal stresses, to the bending, is called

A

Compressive stress

B

Shear stress

C

Bending stress

D

Elastic modulus

In a simple bending theory, one of the assumptions is that the plane sections before bending remain plane after bending. This assumption means that

A

Stress is uniform throughout the beam

B

Strain is uniform throughout the beam

C

Stress is proportional to the distance from the neutral axis

D

Strain is proportional to the distance from the neutral axis

If W is total load per unit area on a panel, D is the diameter of the column head, L is the span in two directions, then the sum of the maximum positive bending moment and average of the negative bending moment for the design of the span of a square flat slab, should not be less than

A

$$\frac{{{\text{WL}}}}{{12}}{\left( {{\text{L}} - \frac{{2{\text{D}}}}{3}} \right)^2}$$

B

$$\frac{{{\text{WL}}}}{{10}}{\left( {{\text{L}} + \frac{{2{\text{D}}}}{3}} \right)^2}$$

C

$$\frac{{{\text{WL}}}}{{10}}{\left( {{\text{L}} - \frac{{2{\text{D}}}}{3}} \right)^2}$$

D

$$\frac{{{\text{WL}}}}{{12}}{\left( {{\text{L}} - \frac{{\text{D}}}{3}} \right)^2}$$

The operation of bending a sheet of metal along a curved axis, is known as

A

Plunging

B

Notching

C

Slitting

D

Forming

Federation Cup, World Cup, Allywy International Trophy and Challenge Cup are awarded to winners of -

A

Tennis

B

Basketball

C

Volleyball

D

Cricket

The operation of cutting of a flat sheet to the desired shape is called

A

Shearing

B

Piercing

C

Punching

D

Blanking

Springback in sheet metal bending depends on the

A

Elastic limit

B

Bend radius

C

Degree of bend

D

Thickness of sheet

A shaft is subjected to bending moment M and a torque T simultaneously. The ratio of the maximum bending stress to maximum shear stress developed in the shaft, is

A

$$\frac{{\text{M}}}{{\text{T}}}$$

B

$$\frac{{\text{T}}}{{\text{M}}}$$

C

$$\frac{{2{\text{M}}}}{{\text{T}}}$$

D

$$\frac{{2{\text{T}}}}{{\text{M}}}$$

The bending moment ‘M’ and a torque ‘T’ is applied on a solid circular shaft. If the maximum bending stress equals to maximum shear stress developed, then ‘M’ is equal to

A

$$\frac{{\text{T}}}{2}$$

B

1T

C

2T

D

4T

A shaft of diameter D is subjected to a twisting moment (T) and a bending moment (M). If the maximum bending stress is equal to maximum shear stress developed, then M is equal to

A

$$\frac{{\text{T}}}{2}$$

B

T

C

2T

D

4T

The operation of producing cup shaped parts from flat sheet metal blanks by bending and plastic flow of metal, is known as

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