In addition to producing the stress concentration, a notch also creates a localized condition of the biaxial or triaxial stress.

Match the following in Column X with Column Y: Column X Column Y P. In a triaxial compression test, with increase of axial strain in loose sand under drained shear condition, the volumetric strain I. decreases Q. In a triaxial compression test, with increase of axial strain in loose sand under undrained shear condition, the excess pore water pressure II. Increase R. In a triaxial compression test, the pore pressure parameter “B” for a saturated soil III. remains same S. For shallow strip footing in pure saturated clay, Terzaghi’s bearing capacity factor (Nq) due to surcharge IV. is always 0.0. V. is always 1.0. VI. is always 0.5. Which one of the following combinations is correct?

A

(P)-(I), (Q)-(II), (R)-(V), (S)-(V)

B

(P)-(II), (Q)-(I), (R)-(IV), (S)-(V)

C

(P)-(I), (Q)-(III), (R)-(VI), (S)-(IV)

D

(P)-(I), (Q)-(II), (R)-(V), (S)-(VI)

Mr.Rohan while helping the students of Class IV in adding and subtracting fractions observed that several students are not able to complete the addition of two improper fractions. He gave a small test with questions from the addition of proper fractions (one item of addition of two similar fractions, three items from the addition of proper and improper fractions, and four items from the addition of improper fractions). He analyzed the responses of each student and found that nearly 45% of students were not clear in adding proper with improper fractions which were affecting their performance in adding two improper fractions. He, therefore, focused on developing the understanding of improper fractions and their addition with proper fractions after which he proceeded to teach the addition of two improper fractions. Which kind of assessment is depicted by this situation?

A

Assessment OF Learning

B

Assessment for Learning

C

Assessment AS Learning

D

Assessment by learning

The discharge over the trapezoidal notch is equal to the discharge over the rectangular notch __________ the discharge over the triangular notch.

A

Plus

B

Minus

C

Divide

D

None of these

The discharge over a rectangular notch is (where b = Width of notch, and H = Height of liquid, above the sill of the notch)

A

(2/3) Cd × b × √(2gH)

B

(2/3) Cd × b × √(2g) × H

C

(2/3) Cd × b × √(2g) × H3/2

D

(2/3) Cd × b × √(2g) × H2

The discharge over a rectangular notch is (where b = Width of notch and H = Height of liquid, above the sill of the notch)

A

$$\frac{2}{3}{{\text{C}}_{\text{d}}} \times {\text{b}}\sqrt {2{\text{gH}}} $$

B

$$\frac{2}{3}{{\text{C}}_{\text{d}}} \times {\text{b}}\sqrt {2{\text{g}}} \times {\text{H}}$$

C

$$\frac{2}{3}{{\text{C}}_{\text{d}}} \times {\text{b}}\sqrt {2{\text{g}}} \times {{\text{H}}^{\frac{3}{2}}}$$

D

$$\frac{2}{3}{{\text{C}}_{\text{d}}} \times {\text{b}}\sqrt {2{\text{g}}} \times {{\text{H}}^2}$$

Traffic coefficient is the factor that has been added to the triaxial equation to obtain the modified triaxial equation.

A

True

B

False

Which of the following statements regarding stress related factors is/are true and false?
1. Burnout Stress Syndrome (BOSS) is a debilirating psychological condition brought about by unrelieved work stress.
2. 'Good' and 'bad' stresses are also referred to as 'Distress' and 'Eustress' respectively.
3. It is natural and healthy to maintain optimal level of stress.
4. Rustout Stress Syndrome (ROSS) is indicative of stress overload.
5. Anxiety is a state of emotional tension characterised by Apprehension, fearfulness, and psychic pain.

A

1, 2 and 4 are true, 3 and 5 are false

B

2, 3 and 4 are true, 1 and 5 are false

C

1, 3 and 5 are true, 2 and 4 are false

D

2, 4 and 5 are true, 1 and 3 are false

For the biaxial plane stress condition, the von Mises yield criteria can be expressed as ___________ Given that principal stresses are σ1, σ2, σ3 where σ2=0 and yield stress is σo.

A

σ1+ σ3 = σo

B

σ12+σ32 – σ1σ3 = σo2

C

σ1+ σ3 – σ1σ3 = σo2

D

σ1+ σ3 – σ1σ3 = σo

The notch sensitivity q is expressed in terms of fatigue stress concentration factor Kf and theoretical stress concentration factor Kt as

A

$$\frac{{{{\text{K}}_{\text{f}}} + 1}}{{{{\text{K}}_{\text{t}}} + 1}}$$

B

$$\frac{{{{\text{K}}_{\text{f}}} - 1}}{{{{\text{K}}_{\text{t}}} - 1}}$$

C

$$\frac{{{{\text{K}}_{\text{t}}} + 1}}{{{{\text{K}}_{\text{f}}} + 1}}$$

D

$$\frac{{{{\text{K}}_{\text{t}}} - 1}}{{{{\text{K}}_{\text{f}}} - 1}}$$

The notch sensitivity q is expressed in terms of fatigue stress concentration factor K_f and theoretical stress concentration factor K_t as

A

$$\frac{{{{\text{K}}_{\text{f}}} + 1}}{{{{\text{K}}_{\text{t}}} + 1}}$$

B

$$\frac{{{{\text{K}}_{\text{f}}} - 1}}{{{{\text{K}}_{\text{t}}} - 1}}$$

C

$$\frac{{{{\text{K}}_{\text{t}}} + 1}}{{{{\text{K}}_{\text{f}}} + 1}}$$

D

$$\frac{{{{\text{K}}_{\text{t}}} - 1}}{{{{\text{K}}_{\text{f}}} - 1}}$$

In addition to producing the stress concentration, a notch also creates a localized condition of the biaxial or triaxial stress.

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