1
GATE ME 2013
MCQ (Single Correct Answer)
+2
-0.6
A single riveted lap joint of two similar plates as shown in the figure below has the following geometrical and material details. GATE ME 2013 Machine Design - Bolted Riveted and Welded Joints Question 10 English

width of the plate $$w = 200$$ $$mm,$$ thickness of the plate $$t = 5$$ $$mm,$$ number of rivets $$n = 3,$$ diameter of the rivet $${d_r} = 10\,\,\,mm,$$ diameter of the rivet hole $${d_h} = 11\,\,\,mm,$$ allowable tensile stress of the plate $${\sigma _p} = 200\,\,MPa,$$ allowable shear stress of the rivet $${\sigma _s} = 100\,\,MPa$$ and allowable bearing stress of the rivet $${\sigma _c} = 150\,\,MPa.$$

If the plates are to be designed to avoid tearing failure, the maximum permissible load $$P$$ in $$kN$$ is

A
$$83$$
B
$$125$$
C
$$167$$
D
$$50$$
2
GATE ME 2013
MCQ (Single Correct Answer)
+1
-0.3
A cube shaped casting solidifies in $$5$$ min. The solidification time in min for a cube of the same material, which is $$8$$ times heavier than the original casting, will be
A
$$10$$
B
$$20$$
C
$$24$$
D
$$40$$
3
GATE ME 2013
MCQ (Single Correct Answer)
+1
-0.3
In a rolling process, the state of stress of the material undergoing deformation is
A
pure compression
B
pure shear
C
compression and shear
D
tension and shear
4
GATE ME 2013
MCQ (Single Correct Answer)
+2
-0.6
Two cutting tools are being compared for a machining operation. The tool life equations are:
$$\eqalign{ & \,\,\,\,\,\,\,\,\,\,\,\,Carbi{\mathop{\rm de}\nolimits} \,\,tool:\,\,\,\,\,\,\,\,\,\,\,\,V{T^{1.6}} = 3000 \cr & \,\,\,\,\,\,\,\,\,\,\,\,HSS\,\,tool:\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,V{T^{0.6}} = 200 \cr} $$

Where $$V$$ is the cutting speed in $$m/min$$ and $$T$$ is the tool life in $$min.$$ The carbide tool will provide higher tool life if the cutting speed in $$m/min$$ exceeds

A
$$15.0$$
B
$$39.4$$
C
$$49.3$$
D
$$60.0$$
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