Needle valves are generally not used for___________________?

Related Mcqs:

For a cylindrical shell, (subject to the thickness of uppermost course being more than the minimum for dia of the tank in question), the thickness of the courses of shell_________________?

A. Decreases upwards B. Increases upwards C. Remains same throughout D. May decrease or increase upwards depending upon whether vacuum or positive pressure would be maintained inside the shell...

Log mean temperature difference in case of multi-pass shell and tube heat exchanger is always_________________?

A. Less than arithmetic mean value B. More than arithmetic mean value C. More than geometric mean value D. Both B. & C....

Circumferential (hoop) stress in a thin cylindrical vessel under internal pressure is _____________ the longitudinal stress?

A. Half B. Equal to C. Twice D. Eight times...

Nominal size of a pipe is an indication of its _______________ diameter?

A. Inner B. Outer C. Approximate D. None of these...

Diameter of bubble caps used in high pressure columns is ______________ as compared to that used in identical vacuum columns?

A. Less B. More C. Same D. Either A. or B.; no generalisation can be made...