When the shear force diagram is a parabolic curve between two points, it indicates that there is a

When there is a sudden increase or decrease in shear force diagram between any two points, it indicates that there is a

A

Point load at the two points

B

No loading between the two points

C

Uniformly distributed load between the two points

D

Uniformly varying load between the two points

Two circular dials of exactly the same size are mounted on a wall side by side in such a way that their perimeters touch at one point. Dial 1, which is on the left , spins clockwise around its center , and dial 2 , which is on the right spins counter clockwise around its center . (Assume that there is no friction at the point of contact between the dials.) Each dial is marked on its perimeter at three points that are at equale distances around the points arked ondial 1 are N, O, and P and the points marked on dial 2 are X, Y, and Z. If points O and Z are just meeting at the point of contact between the dials , and if dial 1 spins at the same speed as dial 2, what is the smallest number of revolutions of each dial that will bring O and Z together again?

A

1

B

2

C

3

D

4

Ponchon Savarit method is based on the use of enthalpy concentration diagram, which contains the bubble point curve (saturated liquid curve), dew point curve (saturated vapour curve) and equilibrium tie lines. As compared to McCabe-Thiele's method, this method

A

Is more accurate in finding the number of equilibrium stages

B

Accounts for the enthalpy changes in the process

C

Facilitates direct calculation of heat load on reboiler & condenser from, the diagram used in this method

D

All of the above

A closely coiled helical spring is acted upon by an axial force. The maximum shear stress developed in the spring is $$\tau $$. The half of the length of the spring if cut off and the remaining spring is acted upon by the same axial force. The maximum shear stress in the spring in new condition will be

A

$$\frac{\tau }{2}$$

B

$$\tau $$

C

$$2\tau $$

D

$$4\tau $$

A beam of T-section is subjected to a shear force of F. The maximum shear force will occur at the

A

Top of the section

B

Bottom of the section

C

Neutral axis of the section

D

Junction of web and flange

The strain energy stored in a body due to shear stress, is (where $$\tau $$ = Shear stress, C = Shear modulus and V = Volume of the body)

A

$$\frac{{\tau {\text{V}}}}{{2{\text{C}}}}$$

B

$$\frac{{2{\text{C}}}}{{\tau {\text{V}}}}$$

C

$$\frac{{{\tau ^2}{\text{V}}}}{{2{\text{C}}}}$$

D

$$\frac{{2{\text{C}}}}{{{\tau ^2}{\text{V}}}}$$

The maximum magnitude of shear stress due to shear force F on a rectangular section of area A at the neutral axis, is

A

$$\frac{{\text{F}}}{{\text{A}}}$$

B

$$\frac{{\text{F}}}{{2{\text{A}}}}$$

C

$$\frac{{3{\text{F}}}}{{2{\text{A}}}}$$

D

$$\frac{{2{\text{F}}}}{{3{\text{A}}}}$$

When a circular beam of diameter d is subjected to a shear force F, the maximum shear stress induced will be

A

$$\frac{{4{\text{F}}}}{{\pi {{\text{d}}^2}}}$$

B

$$\frac{{{\text{6F}}}}{{\pi {{\text{d}}^2}}}$$

C

$$\frac{{{\text{8F}}}}{{\pi {{\text{d}}^2}}}$$

D

$$\frac{{{\text{16F}}}}{{3\pi {{\text{d}}^2}}}$$

When a beam of rectangular cross-section of width b and depth d, is subjected to a shear force F, the maximum shear stress induced will be

A

$$\frac{{\text{F}}}{{{\text{bh}}}}$$

B

$$\frac{{{\text{3F}}}}{{{\text{2bh}}}}$$

C

$$\frac{{{\text{2F}}}}{{{\text{bh}}}}$$

D

$$\frac{{{\text{4F}}}}{{{\text{bh}}}}$$

If the demand line drawn from a ridge in a flow mass curve does not intersect the curve again, it indicates that

A

demand cannot be met by inflow

B

reservoir was not full at the beginning

C

both (A) and (B)

D

none of the above

When the shear force diagram is a parabolic curve between two points, it indicates that there is a

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