Related InterviewSolutions

• Finite wave’s properties such as density, velocity are a function of distance.(a) True(b) FalseThe question was asked in an online interview.Enquiry is from Finite Waves topic in division Unsteady Wave Motion of Aerodynamics
• Riemann invariants are obtained by differentiating the compatibility equations for the characteristic lines.(a) True(b) FalseI got this question during an interview.My enquiry is from Finite Waves topic in chapter Unsteady Wave Motion of Aerodynamics
• What happens when the shock wave propagates in the opposite direction with the same magnitude as wave velocity?(a) Velocity increases(b) Velocity decreases(c) Appears stationary(d) Becomes sonicThe question was asked by my college director while I was bunking the class.I need to ask this question from Moving Normal Shock Waves topic in portion Unsteady Wave Motion of Aerodynamics
• How is total enthalpy related in a stationary shock wave?(a) Constant(b) h2 > h1(c) h2 < h1(d) h02 < h01I have been asked this question in final exam.Question is taken from Moving Normal Shock Waves topic in section Unsteady Wave Motion of Aerodynamics
• Which of these is the governing parameters for change across shock wave when it is moving?(a) Mach number(b) Density(c) Pressure ratio(d) Velocity ratioThis question was addressed to me in semester exam.My enquiry is from Moving Normal Shock Waves topic in chapter Unsteady Wave Motion of Aerodynamics
• If the Riemann variants are known, how can we compute the mass – motion velocity u?(a) \(\frac {J_++J_-}{2}\)(b) \(\frac {J_+-J_-}{2}\)(c) \(\frac {J_+×J_-}{3}\)(d) \(\frac {J_+×J_-}{6}\)I have been asked this question during an interview.Question is from Finite Waves in chapter Unsteady Wave Motion of Aerodynamics
• If the Mach number of the moving shock wave relative to the laboratory Ms = 1.25 then what is the Mach number of the reflected shock wave in a calorically perfect gas?(a) 1.2331(b) 1.4821(c) 1.5671(d) 1.1102This question was posed to me in an online interview.This key question is from Reflected Shock Wave in section Unsteady Wave Motion of Aerodynamics
• What is the slope for C– characteristic line?(a) u + a(b) u – a(c) ua(d) \(\frac {u}{a}\)I have been asked this question in an interview for job.Origin of the question is Finite Waves topic in chapter Unsteady Wave Motion of Aerodynamics
• What is a wave diagram?(a) Plot of wave motion between t and x(b) Plot of reflected wave motion between t and x(c) Diagram of shock creation inside shock tube(d) Plot of wave motion between x and tThe question was asked in an online quiz.This intriguing question originated from Reflected Shock Wave topic in portion Unsteady Wave Motion of Aerodynamics
• The flow properties of the moving wave depends on which property/properties?(a) Direction(b) Time(c) Both direction and time(d) TemperatureThe question was asked in an internship interview.My question comes from Moving Normal Shock Waves topic in section Unsteady Wave Motion of Aerodynamics