The state of stress at a point in a loaded member is shown in the below figure. The magnitude of maximum shear stress is

Shear stress versus shear rate behavior of four different types of fluids (I, II, III and IV) are shown in the figure below.
Basic Principles of Biotechnology mcq question image

Basic Principles of Biotechnology mcq question image

Which one of the following options is correct?

A

I-Newtonian, II-Bingham plastic, III-Dilatant, IV-Pseudoplastic

B

I-Pseudoplastic, II-Dilatant, III-Newtonian, IV-Bingham plastic

C

I-Newtonian, II-Pseudoplastic, III-Bingham plastic, IV-Dilatant

D

I-Newtonian, II-Bingham plastic, III-Pseudoplastic, IV-Dilatant

Tresca or maximum-shear stress criteria assumes that yielding occurs when the maximum shear stress reaches a value of the shear stress in the uniaxial tension test. Assume the principal stress being σ1, σ2, σ3 where σ1 is largest, and σ3 is the smallest principal stresses. Find the value of minimum shear stress to cause yielding, given that yield stress in tension is equal to σo?

A

τ = σo

B

τ = σo/2

C

τ = σo/3

D

τ = σo/4

A simply supported beam of length 'l' carries a point load 'W' at a point C as shown in the below figure. The maximum deflection lies at
Strength of Materials mcq question image

Strength of Materials mcq question image

A

Point A

B

Point B

C

Point C

D

Between points B and C

The maximum shear stress, in the given figure, is equal to __________ of the Mohr's circle.
Strength of Materials mcq question image

A

Radius

B

Diameter

C

Circumference

D

Area

In a stress-strain diagram for mild steel, as shown in the below figure, the point ‘A’ represents
Strength of Materials mcq question image

A

Elastic limit

B

Upper yield point

C

Lower yield point

D

Breaking point

A simply supported beam with a gradually varying load from zero at ‘B’ and ‘w’ per unit length at ‘A’ is shown in the below figure. The shear force at ‘B’ is equal to
Strength of Materials mcq question image

A

$$\frac{{{\text{w}}l}}{6}$$

B

$$\frac{{{\text{w}}l}}{3}$$

C

$${\text{w}}l$$

D

$$\frac{{2{\text{w}}l}}{3}$$

For the beam shown in the below figure, the shear force at A is equal to
Strength of Materials mcq question image

A

$$\frac{{{\text{w}}l}}{6}$$

B

$$\frac{{{\text{w}}l}}{3}$$

C

$${\text{w}}l$$

D

$$\frac{{2{\text{w}}l}}{3}$$

For the beam shown in the below figure, the shear force diagram between A and B is
Strength of Materials mcq question image

A

A horizontal line

B

A vertical line

C

An inclined line

D

A parabolic curve

Two dielectric materials A and B exhibit both ionic and orientational polarizabilities. The variation of their susceptibilities $$\chi \left( { = {\varepsilon _r} - 1} \right)$$ with temperature T is shown in the figure, where $${\varepsilon _r}$$ is the relative dielectric constant. It can be inferred from the figure that
Solid State Physics mcq question image

A

A is more polar and it has a smaller value of ionic polarizability than that of B

B

A is more polar and it has a higher value of ionic polarizability than that of B

C

B is more polar and it has a higher value of ionic polarizability than that of A

D

B is more polar and it has a smaller value of ionic polarizability than that of A

In a stress-strain diagram as shown in the below figure, the curve ‘A’ represents
Strength of Materials mcq question image

A

Mild steel

B

Soft brass

C

Low carbon steel

D

Cold rolled steel

The state of stress at a point in a loaded member is shown in the below figure. The magnitude of maximum shear stress is

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