The Delhi Metro Rail Corporation Ltd., abbreviated to DMRC, is a Centre-state Public Sector company that operates the Delhi Metro


01. Consider the following parameters with regards to slenderness ratio of a compression
member:
1. Material 2. Sectional configuration
3. Length of member 4. Support end conditions
On which of these parameters does the slenderness ratio of a compression member
depend?
(a) 1,2 and 3 only (b) 1,3 and 4 only
(c) 2,3 and 4 only (d) 1,2,3 and 4
Ans: (c)
02. Two equal angles, each being ISA 100 mm × 100 mm of thickness 10 mm, are placed
back-to-back and connected to either side of a gusset plate through a single row of 16
mm diameter rivets in double shear. The effective areas of the connected and
unconnected legs of each of these angles are 775mm
2
and 950 mm2
respectively. If these
angles are not tack-riveted, the net effective area of this pair of angles is
(a) 3650 mm2
(b) 3450 mm2
(c) 3076 mm2
(d) 2899 mm2
Ans: (d)
03. When the effect of wind or earthquake load is taken into account in the design of a
riveted connection, the permissible stresses in rivets may be exceeded by
(a) 16.66% (b) 33.33% (c) 25% (d) 50%
Ans: (c)
04. A mild steel flat subjected to a tensile force of 840 kN is connected to a gusset plate
using rivets. If the permissible forces required per pitch length (i) to shear a single rivert,
(ii) to crush the rivet and (iii) to tear the plate are 50 kN, 80 kN and 60 kN respectively,
then the number of rivets required is
(a) 12 (b) 14 (c) 16 (d) 17
Ans: (d)
05. The effective throat thickness of a fillet weld depends upon
(a) angle between fusion faces (b) length of weld
(c) permissible shear stress (d) type of weld
Ans: (a)
06. When the load line coincides with the centroid of the rivet group, the rivets are subjected
to
(a) shear only (b) tension only
(c) bending only (d) shear as well as tension
Ans: (a)
3
1 m
Cable
3 m
3 m 3 m
P
07. A column member of length l which cannot sway has a rigid foundation at its bottom. Its
top is held with heavy beams. The effective length of the column is
(a) 1.5 l (b) 1.0 l (c) 0.8 l (d) 0.65 l

Attached Files

DMRC Question Papers For Junior Engineer Civil.pdf (839.5 KB, 837 views)