Related Questions

When a body is subjected to direct tensile stresses ($${\sigma _{\text{x}}}$$ and $${\sigma _{\text{y}}}$$) in two mutually perpendicular directions, accompanied by a simple shear stress $${\tau _{{\text{xy}}}}{\text{,}}$$  then in Mohr's circle method, the circle radius is taken as
A $$\frac{{{\sigma _{\text{x}}} - {\sigma _{\text{y}}}}}{2} + \tau $$
B $$\frac{{{\sigma _{\text{x}}} + {\sigma _{\text{y}}}}}{2} + \tau $$
C $$\frac{1}{2}\sqrt {{{\left( {{\sigma _{\text{x}}} - {\sigma _{\text{y}}}} \right)}^2} + 4\tau _{{\text{xy}}}^2} $$
D $$\frac{1}{2}\sqrt {{{\left( {{\sigma _{\text{x}}} + {\sigma _{\text{y}}}} \right)}^2} + 4\tau _{{\text{xy}}}^2} $$
The writer was too young ........ to say 'no" to a woman.
A to be learnt
B to have learnt
C learning
D to be learning
Who said the words,'I disapprove of what you say, but I will defend to death your right to say it?
A G.B. Shaw
B Vladimir Lenin
C Voltaire
D Mahatma Gandhi
Who said the words, 'I disapprove of what you say, but I will defend to Death your right to say it'?
A George Bernard Shaw
B Vladimir Lenin
C Voltaire
D Mahatma Gandhi
When a body is subjected to biaxial stress i.e. direct stresses ($${\sigma _{\text{x}}}$$) and ($${\sigma _{\text{y}}}$$) in two mutually perpendicular planes accompanied by a simple shear stress ($${\tau _{{\text{xy}}}}$$ ), then maximum shear stress is
A $$\frac{1}{2}\sqrt {{{\left( {{\sigma _{\text{x}}} - {\sigma _{\text{y}}}} \right)}^2} + 4\tau _{{\text{xy}}}^2} $$
B $$\frac{1}{2}\sqrt {{{\left( {{\sigma _{\text{x}}} + {\sigma _{\text{y}}}} \right)}^2} + 4\tau _{{\text{xy}}}^2} $$
C $$\sqrt {{{\left( {{\sigma _{\text{x}}} - {\sigma _{\text{y}}}} \right)}^2} + \tau _{{\text{xy}}}^2} $$
D $$\sqrt {{{\left( {{\sigma _{\text{x}}} + {\sigma _{\text{y}}}} \right)}^2} + \tau _{{\text{xy}}}^2} $$
Which of the following alloys does not have copper as one of the constituents?
A Delta metal
B Monel metal
C Constantan
D Nichrome
Which of the following alloys does not contain nickel?
A Chlorinet - 2 alloy
B Monel
C Inconel
D Babbit metal
Which of the following alloys does not contain tin?
A White metal
B Solder admiralty
C Fusible metal
D Phosphor bronze
Which of the following hardness tests does not measure the indentation hardness of metals and alloys ?
A Vicker's hardness test
B Shore sceleroscope test
C Brinell hardness test
D Rockwell hardness test
What does the writer mean by ' petty tasks'?
A serious takes
B small tasks
C beautiful tasks
D high tasks

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