1
GATE CE 2009
MCQ (Single Correct Answer)
+1
-0.3
Consider the following statements for a compression member

$${\rm I}.\,\,\,\,$$ The elastic critical stress in compression increases with decrease in slenderness ratio

$${\rm II}.\,\,\,\,$$ The effective length depends on the boundary conditions at its ends

$${\rm III}.\,\,\,\,$$ The elastic critical stress in compression is independent of the slenderness ratio

$${\rm IV}.\,\,\,\,$$ The ratio of the effective length to its radius of gyration is called as slenderness ratio

The TRUE statements are

A
Only $${\rm I}$$ and $${\rm II}$$
B
only $${\rm II}$$ and $${\rm III}$$
C
only $${\rm I}$$ and $${\rm I}$$$${\rm I}$$$${\rm I}$$
D
$${\rm I}$$, $${\rm I}$$$${\rm I}$$ and $${\rm IV}$$
2
GATE CE 2009
MCQ (Single Correct Answer)
+2
-0.6
A 12 mm thick plate is connected to two 8 mm plates, on either side through a 16 mm diameter power driven field rivet as shown in the figure below. Assuming permissible shear stress as 90MPa and permissible bearing stress as 270 MPa in the rivet, the rivet value of the joint is GATE CE 2009 Steel Structures - Riveted Joints and Bolted Joints Question 3 English
A
56.70 kN
B
43.29 kN
C
36.19 kN
D
21.65 kN
3
GATE CE 2009
MCQ (Single Correct Answer)
+2
-0.6
A vertical rod $$PQ$$ of length $$L$$ is fixed at its top end $$P$$ and has a flange fixed to the bottom end $$Q.A$$ weight $$W$$ is dropped vertically from a height $$h\left( { < L} \right)$$ on to the flange. The axial stress in the rod can be reduced by
A
increasing the length of the rod
B
Decreasing the length of the rod
C
Decreasing the area of cross-section of the rod
D
Increasing the modulus of elasticity of the material
4
GATE CE 2009
MCQ (Single Correct Answer)
+2
-0.6
A hollow circular shaft has an outer diameter of $$100$$ $$mm$$ and a wall thickness of $$25$$ $$mm.$$ The allowable shear stress in the shaft is $$125$$ $$MPa.$$ The maximum torque the shaft can transmit is
A
$$46$$ $$kN$$-$$m$$
B
$$24$$ $$kN$$-$$m$$
C
$$23$$ $$kN$$-$$m$$
D
$$11.5$$ $$kN$$-$$m$$
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