NRL
9
Mock Tests
1+
Students Enrolled
1%
Average Score
Included Tests
- Open Test
#0
Mass Transfer(RamPrasad)
open
180 mins | 180 marks | 180 questions
- Open Test
#0
Fluidization Engineering
open
60 mins | - marks | 50 questions
- Open Test
#0
Chemical Technology
open
180 mins | - marks | 70 questions
- Open Test
#0
Heat Transfer 1
open
180 mins | 140 marks | 140 questions
- Open Test
#0
Mass Transfer 100
open
180 mins | 400 marks | 100 questions
- Open Test
#0
Heat Transfer RmPrasad
open
120 mins | 480 marks | 120 questions
- Open Test
#0
CRE RmPrasad
open
180 mins | 560 marks | 140 questions
- Open Test
#0
NRL 2025
open
90 mins | 100 marks | 100 questions
- Open Test
#0
NRL 2021
open
120 mins | 100 marks | 100 questions
Sample Questions
Q1.
In the context of steady-state molecular diffusion of gas A through non-diffusing B, the ratio of the molar flux of A to the total molar flux (\frac{N_A}{N_A+N_B}) is:
(A)0
(B)0.5
(C)1.0
(D)\infinity
Q2.
According to the surface-renewal theory, the mass transfer coefficient (k_L) is directly proportional to:
(A)D_{AB}
(B)D_{AB}^{0.5}
(C)D_{AB}^{1.5}
(D)D_{AB}^{-0.5}
Q3.
For a binary mixture of ideal gases, how is the diffusivity D_{AB} related to pressure (P) and absolute temperature (T)?
(A)\propto P and \propto T^{1.5}
(B)\propto 1/P and \propto T^{1.5}
(C)\propto P and \propto T^2
(D)\propto 1/P and \propto T