# Partial differential equations Quiz Questions and Answers 13 PDF Download

Learn partial differential equations quiz online, mechanical engineering test 13 for online learning, distance learning courses. Free partial differential equations MCQs questions and answers to learn cfd quiz with answers. Practice tests for educational assessment on partial differential equations test with answers, finite difference method, purpose of cfd, transformation of equation, partial differential equations practice test for mechanical engineering certifications online.

Free online partial differential equations course worksheet has multiple choice quiz question: for partial differential equation, if b² - 4ac < 0 then equation is called with choices hyperbolic, parabolic, elliptic and none of these to improve study skills and to qualify online universities' competitive exams with online learning courses, study mathematical behavior of partial differential equation multiple choice questions based quiz question and answers.

## Quiz on Partial differential equations Worksheet 13 Quiz PDF Download

Purpose of CFD Quiz

MCQ: For partial differential equation, if b² - 4ac < 0 then equation is called

- hyperbolic
- parabolic
- elliptic
- None of these

C

Purpose of CFD Quiz

MCQ: Ideally, to ensure best results, aspect ratio should be equal to

- zero
- one
- two
- three

B

Purpose of CFD Quiz

MCQ: If Pu is upstream pressure and Pd is downstream pressure, Euler number is equal to

- Pd - Pu/pV²
- Pu - Pd/pV²
- Pu - Pd/pV³
- Pu - Pd/pV

B

Purpose of CFD Quiz

MCQ: Formula of central differencing for 2nd order is

- Δhf(x) = f(x+h) - f(x)
- Δh²f(x) = f(x+h) - f(x-h)
- Δhf(x) = f(x) - f(x+h)
- 2Δhf(x) = f(x+h) - f(x-h)

B

Purpose of CFD Quiz

MCQ: Ratio of flow inertia to external field is called

- Froude number
- Mach number
- Reynolds number
- cavitation number

A