1. A rolled I-section provides ?

large moment of inertia about X-axis with less cross-sectional area

large moment of resistance as compared to the other sections

greater lateral stability

all of the above

Answer: all of the above

Explanation:


2. The structure large in two dimensions and small in third dimension, is called a ?

supporting structure

surface structure

space structure

none of these

Answer: surface structure

Explanation:


3. When the line of rivets does not lie in the direction of stress, the maximum pitch in a riveted joint should not exceed ?

12 t or 200 mm whichever is less

16 t or 200 mm whichever is less

24 t or 300 mm whichever is less

32 t or 300 mm whichever is less

Answer: 32 t or 300 mm whichever is less

Explanation:


4. A single triangular system is formed in the case of ?

single lacing

double lacing

both (a) and (b)

none of these

Answer: single lacing

Explanation:


5. When the components of built-up column are connected by a lateral system, the reduction in buckling strength due to shear deflection is ................ that of solid built-up columns ?

equal to

less than

more than

none

Answer: more than

Explanation:


6. In direction restraint condition of column ?

end of the column is free to change its position

rotation about the end of column can take place

end of column is not free to change its position

rotation about the end of column can take place

Answer: end of the column is free to change its position

Explanation:


7. Which of the following statement is wrong ?

When the unsupported lengths of the columns are reduced by providing intermediate supports, then the smaller sections may be used at a higher average stress

In a rolled steel I-section, the radius of gyration about Y-axis is much more than the radius about X-axis

When a column is subjected to different bending moments in two directions, the greater of gyration value of the radius of gyration should be kept in the direction of greater moment

all of the above

Answer: In a rolled steel I-section, the radius of gyration about Y-axis is much more than the radius about X-axis

Explanation:


8. Which of the following statement is correct in designing a laced column ?

A single lacing system on opposite planes shall preferably be in the same direction so that one is shadow of the other

The laced compression members are to be provided with tie plates at middle

The lacing bar should only be flat angle channels generally

The slenderness ratio of the lacing bars for compression shall not exceed 180

Answer: A single lacing system on opposite planes shall preferably be in the same direction so that one is shadow of the other

Explanation:


9. If the tension member is normally acting as a tie in roof truss but subjected to possible reversal stress resulting from the action of wind, the member should have slenderness ratio not greater than ?

150

280

350

450

Answer: 350

Explanation:


10. A beam is a structural member subjected to .......... loads ?

axial

transverse

axial and transverse

none

Answer: transverse

Explanation: