Low pressure steam (with saturation temperature between 105 to 120°C) is usually used in the vacuum evaporators, which normally employ a vacuum of about _______________ mm Hg (referred to a 760 mm mercury barometer)?

Related Mcqs:

Practical dividing line between a ductile and brittle materials is suggested, when the ultimate elongation is about 5%. Generally, larger the knuckle radius, stronger is the corner torus section of a head. The knuckle radius provided should be less than ______________ of the head?

A. 6% of I.D. B. 3 times the thickness C. Either A. or B., whichever is larger D. Either A. or B., whichever is smaller...

In the allocated cap area, bubble caps are generally arranged on equilateral triangular pitch. Number of caps fixed on a plate is with a __________________?

A. Clearance of 25-75 mm B. Cap pitch of 1.3-2 times the cap diameter C. Either A. or B. D. Neither A. nor B....

Liquid redistribution should be done in a packed tower packed with raschig rings every 6 metres or ______________ times the column diameter, whichever is lower?

A. 2.5-3.0 B. 5-7.5 C. 10-12.5 D. 15-20...

The ratio of tube length to shell diameter in case of liquid shell and tube heat exchanger ranges from__________________?

A. 2 to 3 B. 3 to 5 C. 4 to 8 D. 6 to 12...

Rotary driers are most economically designed for the number of heat transfer units (HTU) from _________________?

A. 0.01 to 1 B. 1.5 to 2.5 C. 5 to 10 D. 10 to 20...