Related Questions

For standard coarse threads of nut, the threads will be as strong in failure by shear as the bolt in tension, if the height of nut (h) is approximately
A 0.4 times
B 0.6 times
C 0.7 times
D 0.8 times
If shearing stress in nut is half the tensile stress in a bolt, then nut length should be equal to
A Diameter of bolt
B 0.75 × diameter of bolt
C 1.25 × diameter of bolt
D 1.5 × diameter of bolt
The initial tension (in newtons) in a bolt used for making a fluid tight joint like steam engine cover joints, is calculated by the relation (where d = Nominal diameter of bolt in mm)
A 1420 d
B 1680 d
C 2080 d
D 2840 d
The cutting speed for drilling aluminium, brass and bronze with carbon steel drills is _________ cutting speed for drilling mild steel with high speed steel drills.
A Equal to
B Less than
C More than
D None of these
If d is the normal diameter of a bolt in mm, then the initial tension in kg in a bolt used for making a fluid tight joint as for steam engine cover joint is calculated by the relation
A 124 d
B 138 d
C 151 d
D 168 d
A bolt is made to pass through a tube and both of them are tightly fitted with the help of washers and nuts. If the nut is tightened, then
A Bolt and tube are under tension
B Bolt and tube are under compression
C Bolt is under compression and tube is under tension
D Bolt is under tension and tube is under compression
When the connected members are very yielding (soft gasket) as compared to the bolt, then the resultant load on the bolt will be equal to the
A Initial tension
B External load applied
C Sum of the initial tension and external load applied
D Initial tension or external load, whichever is greater
When the bolt is very yielding as compared to the connected members, then the resultant load on the bolt will be equal to the
A Initial tension
B External load applied
C Sum of the initial tension and external load applied
D Initial tension or external load, whichever is greater
For machining a mild steel workpiece by a high speed steel tool, the average cutting speed is
A 5 m/min
B 10 m/ min
C 15 m/min
D 30 m/min
The allowable tensile stress in structural mild steel plates for steel tank is assumed as
A 95.0 MPa on net area
B 105.5 MPa on net area
C 105.5 MPa on gross area
D 150.0 MPa on gross area

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