# Out of the two beams of the same material and same cross-sectional area, one is of circular cross-section and the other is of square cross-section. If each of these is subjected to bending moment of the same magnitude, then:

1.  Both sections would be equally strong.

2.  Both sections would be equally economical

3.  Square section would be more economical than circular section

4.  Square section would be less economical than circular section

4

Square section would be more economical than circular section

Explanation :
No Explanation available for this question

# A rectangular beam of width 100 mm is subjected to a maximum shear-force of 60kN. The corresponding maximum shear stress in the cross-section is 4 N/mm2. The depth of the beam should be:

1.  200 mm

2.  150 mm

3.  100 mm

4.  225 mm

4

225 mm

Explanation :
No Explanation available for this question

# In a circular shaft of diameter d, subjected to a torque T, the maximum shear stress induced is:

1.  Proportional to d3

2.  Proportional to d4

3.  Inversely proportional to d3

4.  Inversely proportional to d4

4

Inversely proportional to d3

Explanation :
No Explanation available for this question

# Which of the following terms represents the torque corresponding to a twist of one radian in a shaft over its unit length

1.  Torsional stress

2.  Torsional rigidity

3.  Flexural rigidity

4.  Moment of resistance

4

Torsional rigidity

Explanation :
No Explanation available for this question

# A fast breeder reactor

1.  Uses graphite rods as moderator

2.  Has powerful moderator

3.  Has no moderator

4.  Uses ferrite material as moderator

4

Has no moderator

Explanation :
No Explanation available for this question

# Artificial radioactive isotopes find application in

1.  Power generation

2.  Nucleonic devices

3.  Nuclear fission

4.  Medical field.

4

Medical field.

Explanation :
No Explanation available for this question

# If a shaft rotates at 100r.p.m. and is subjected to a torque of 3000 N-m, the power transmitted in kW would be:

1.  30π

2.  15π

3.  20π

4.  10π

4

10π

Explanation :
No Explanation available for this question

# Half-life of a radioactive isotope corresponds to the time required for half of the following to decay

1.  Electrons

2.  Protons

3.  Neutrons

4.  Atom

4

Atom

Explanation :
No Explanation available for this question

# The Muller-Breslau principle in structural analysis is used for:

1.  Drawing influence line diagram for any force function

3.  Writing virtual work equation

4.  None of the above

4

Drawing influence line diagram for any force function

Explanation :
No Explanation available for this question

1.  EI/L

2.  2EI/L

3.  3EI/L

4.  4EI/L

4