CHEMICAL ENGINEERING | Mass Transfer

Laboratory determination of the dif-fusivity of vapor is done by __________ method.

Byadmin August 29, 2022

Question: Laboratory determination of the dif-fusivity of vapor is done by __________ method.
[A].

wetted wall column

[B].

Gilliland’s

[C].

Winkel mann’s

[D].

Wike’s

Answer: Option C

Explanation:

No answer description available for this question.

Mass Transfer

Prandtl number for water at 20°C is about ________________?

Prandtl number for water at 20°C is about ________________?

A. 7
B. 70
C. 0.7
D. 150

Read More Prandtl number for water at 20°C is about ________________?
CHEMICAL ENGINEERING | Chemical Engineering Basics

Out of the following the refractive index is the highest for

Question: Out of the following the refractive index is the highest for
[A].

glass
[B].
diamond
[C].
brine
[D].
kerosene

Answer: Option B

Explanation:

No answer description available for this question.

Read More Out of the following the refractive index is the highest for
CHEMICAL ENGINEERING | Materials and Construction

Babbit metals used for making bearings are

Question: Babbit metals used for making bearings are
[A].

tin or lead based alloys.
[B].
short of antifrictional properties.
[C].
having homogenous microstructure.
[D].
yellow metals.

Answer: Option A

Explanation:

No answer description available for this question.

Read More Babbit metals used for making bearings are
CHEMICAL ENGINEERING | Chemical Process

99.5% purity oxygen is used in

Question: 99.5% purity oxygen is used in
[A].

cutting and welding by oxy-acetylene flame.
[B].
hospitals for medicinal purposes.
[C].
gas masks and artificial breathing apparatus.
[D].
all (a), (b), and (c).

Answer: Option D

Explanation:

No answer description available for this question.

Read More 99.5% purity oxygen is used in
CHEMICAL ENGINEERING | Chemical Process

The catalyst used in the manufacture of DDT (from chloral and chlorobenzene) is

Question: The catalyst used in the manufacture of DDT (from chloral and chlorobenzene) is
[A].

dilute H2SO4
[B].
oleum
[C].
ultraviolet light
[D].
none of these

Answer: Option B

Explanation:

No answer description available for this question.

Read More The catalyst used in the manufacture of DDT (from chloral and chlorobenzene) is
CHEMICAL ENGINEERING | Chemical Process

Enamels

Question: Enamels
[A].

give good glossy finish.
[B].
are same as varnish.
[C].
are prepared from non-drying oil.
[D].
do not contain pigment.

Answer: Option A

Explanation:

No answer description available for this question.

Read More Enamels

Similar Posts