1
GATE CE 2002
+2
-0.6
$$ISA$$ $$100 \times 100 \times 10mm$$ (cross sectional area $$= 1903\,\,m{m^2}$$) is welded along $$A$$ and $$B$$ (Refer to figure in the below question) such that the lengths of the weld along $$A$$ and $$B$$ are $${l_1}$$ and $${l_2}$$ respectively. Which of the following is a possibly acceptable combination of $${l_1}$$ and $${l_2}$$ A
$${l_1}$$ $$=60$$ $$mm$$ and $${l_2}$$ $$=150$$ $$mm$$
B
$${l_1}$$ $$=150$$ $$mm$$ and $${l_2}$$ $$=60$$ $$mm$$
C
$${l_1}$$ $$=150$$ $$mm$$ and $${l_2}$$ $$=150$$ $$mm$$
D
Any of the above, depending on the size of the weld
2
GATE CE 2002
Subjective
+5
-0
Given reason for the following is not more than $$20$$ words

(a) A maximum permissible distance between lacing and battens in steel columns is
$$\,\,\,\,\,\,\,$$ usually specified.
(b) It is sometimes preferable to have unequal flange angle with the longer legs
$$\,\,\,\,\,\,\,$$ horizontal in plate girder.
(c) If two channel sections need to be used as a steel column, they may be connected
$$\,\,\,\,\,\,\,$$ 'face-to-face' rather than 'back-to-back'
(d) It is sometimes preferred to have a small gap between the web and the flange
$$\,\,\,\,\,\,\,$$ plate in a plate girder.
(e) A maximum permissible 'outstand may be specific for flange in built-up sections.

3
GATE CE 2002
+1
-0.3
When designing steel structures, one must ensure that local buckling in webs does not take place. This check may not be very critical when using rolled steel sections because
A
Quality control at the time of manufacture of rolled sections is very good
B
Web depth available are small
C
Web stiffeners are in-built in rolled sections
D
Depth to thickness ratio (of the web) are appropriately adjusted
4
GATE CE 2002
+1
-0.3
An $$ISMB$$ $$500$$ is used as a beam in a multi-storey construction. From the view point of structural design, it can be considered to be 'laterally restrained' when,
A
The tension flange is 'laterally restrained'
B
The compression flange is 'laterally restrained'
C
D
The conditions in $$(a)$$ and $$(c)$$ are met
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