Description : Border line which separates outer space from Earth’s atmosphere is known as------? A. Durand line B. Space line C. Venus line D. Karman line (Answer)
Last Answer : D. Karman line (Answer)
Description : The equation, Nst = (f/2)/[1 + 5 (Npr - 1) √(f/2)], corresponds to __________ analogy. (A) Von-Karman (B) Reynolds (C) Colburn (D) Prandtl
Last Answer : (D) Prandtl
Description : The equation f -0.5 = 4.07 loge (NRe √f) -0.6 is called the __________. (A) Colebrook formula (B) Von-Karman equation (C) Fanning equation (D) None of these
Last Answer : (B) Von-Karman equation
Description : Which of the following equations is valid for laminar flow of a fluid through packed bed? (A) Fanning equation (B) Kozeny - Karman equation (C) Hagen-Poiseuille equation (D) Blake-Plummer equation
Last Answer : (B) Kozeny - Karman equation
Description : The equation relating friction factor to Reynold number, f -0.5 = 4 loge (NRe /√f) -0.4 , is called the __________ equation. (A) Nikuradse (B) Von-Karman
Last Answer : (B) Ergun's
Description : Singing of telephone wires in the wind occurs due to : (a) Vibrations caused by birds as they sit on or get off, the wires (b) Tensioning at the ends (c) Magnus effect (d) Generation of Karman Vortex street
Last Answer : (d) Generation of Karman Vortex street