Chemical Engineering Answers

What is the sphericity of a hollow cylinder whose length is 10 times of its own diameter?

A) 0.14

B) 0.21

C) 0.37           D) 0.69

E) None of the above

What is the role of the pivot in Jaw crusher?

Mesh no 28, 35 and 48 are arranged in Taylors standard sieve series, in Taylors series mesh no 35 is the next smaller screen to the mesh no 28 & mesh no 48 is the next smaller screen to the mesh no 35. Here screen opening size of mesh no 28 is 0.589 mm. then what is the screen opening size of mesh no 48....?

What is the critical speed(RPM) of the ball mill, if the diameter of the ball mill=500 mm and diameter of the ball 80 mm

A) 65

B) 75

C) 45

D) 55

E) 35

What should be the diameter (mm) of set rolls which accepts feed equivalent to spheres of 50 mm in diameter and crush them to spheres having in diameter of 15 mm? Here the co-efficient friction is 0.30

A) 250

B) 500

C) 600

D) 750

E) None of these

Name the chemical used in stokes law experiment ?

∫0^∞e^x³ dx is equal to

A) 1/3Γ(1/3)

B) 1/2Γ(1/3)

C) Γ(1/3)           D) 3Γ(1/3)

The breathing process within the lungs involves

(2) Diffusion of A through non-diffing B (b) Equimolar Counter diffusion

(c) Multicomponent non-equimolar counter diffusion (d) Not related to diffusion phenomenon.

∫0^∞ e^x³ dx is equal to

A) 1/3Γ(1/3)

B) 1/2Γ(1/3)

C) Γ(1/3) D) 3Γ(1/3)