Which of the following fastening devices has its both ends threaded ?

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The leaching solvent used in Baeyer’s process for the purification of bauxite is___________________?

A. Ammonium hydroxide B. Sodium carbonate C. Sodium hydroxide D. Ammonium carbonate...

Percentage of differential pressure lost in a Venturimeter with a tapering of 15° may be about___________________?

A. 1 B. 10 C. 25 D. 50...

The mechanism which changes the value of manipulated variable in response to the output signal from the control unit is called the___________________?

A. Final control element B. On-off control C. Floating control action D. None of these...

What is the value of entropy at 273°K ?

A. 0 B. 1 C. ∞ D. None of these...

Other parameters remaining same, the recrystallisation temperature of an alloy is lowered, when_________________?

A. Strain rate is increased B. Grain size is increased C. Prior cold deformation is increased D. Not affected by any of the above parameters...