Engineering Analysis

Quiz
•
Design
•
University
•
Medium
Maduranga Pillai
Used 3+ times
FREE Resource
9 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
If there are 7 physical variables and 3 fundamental dimensions, how many numbers of pi terms shall be considered?
1
2
3
4
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Which equation is not dimensionally correct?
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the dimension of dynamic viscosity?
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the dimension of energy?
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
In a dimensional form, the radius of blast in a nuclear wave shock wave is dependent on energy (E), ambient density (ρ) and time (T).
What is the correct Rayleigh's form for the above scenario.
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What is the Pi 1 term of the relationship that exists between pressure drop (∆P) and other variables such as diameter (d), length (L), density (ρ), dynamic viscosity (μ) and velocity (v).
Repeating Variables: d, ρ, μ
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
𝑐 + 1 = 0 − − − − − − (1)
𝑎 + 𝑏 − 3𝑐 + 1 = 0 − −(2)
− 𝑏 − 2 = 0 − − − − (3)
a = 2, b = 2, c= 1
𝑎 = −2, 𝑏 = −2, 𝑐 = −1
a= 1, b= -1 c= 1
a = 2, b = -2, c= 1
8.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is not a Primary Dimension?
Mass
Length
Electric Current
Density
9.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The resistance to motion ‘R’ for a sphere having diameter ‘D’ moving at constant velocity ‘v’ through a compressible fluid is dependent upon the density ‘𝜌’ and the bulk modulus ‘K’ of the fluid. The resistance is primarily due to compression of the fluid in front of the sphere.
For the above scenario what can not be selected as a Repeating Variable
D
K
v
R
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