Description : The ratio of inertial forces to gravity forces is called the __________ number. (A) Mach (B) Froude (C) Euler (D) Weber
Last Answer : (B) Froude
Description : Ratio of inertial forces to surface tension forces is called the __________ number. (A) Euler (B) Froude (C) Mach (D) Weber
Last Answer : (D) Weber
Description : The ratio of inertial forces to viscous forces is called the __________ number. (A) Weber (B) Mach (C) Froude (D) Reynold
Last Answer : (D) Reynold
Description : The ratio of inertial forces to elastic forces is called the __________ number. (A) Reynolds (B) Mach (C) Euler (D) Weber
Last Answer : (B) Mach
Description : Ratio of pressure and inertia force gives __________ number. (A) Weber (B) Mach (C) Euler (D) Froude
Last Answer : (C) Euler
Description : The molecular number density of an ideal gas at standard temperature and pressure in cm3 a. Froude number b. Loschmidt number c. Mach number d. Reynold number
Last Answer : Loschmidt number
Description : Froude number is the ratio of (A) Shear stress to gravitational stress (B) Drag stress to shear stress (C) Inertial stress to shear stress (D) Inertial stress to gravitational stress
Last Answer : (D) Inertial stress to gravitational stress
Description : __________ number determines whether the fluid flow in an open channel is supercritical, critical or sub-critical. (A) Mach (B) Reynolds (C) Froude (D) Weber
Last Answer : (C) Froude
Description : Ratio of inertia force to elastic force is known as (A) Mach number (B) Froude number (C) Reynolds number (D) Weber's number
Last Answer : Answer: Option A
Description : Ratio of inertia force to surface Jension is known as (A) Mach number (B) Froude number (C) (D) Weber's number
Last Answer : Answer: Option D
Description : Pressure co-efficient is the ratio of pressure forces to __________ forces. (A) Gravity (B) Inertial (C) Viscous (D) None of these
Last Answer : (B) Inertial
Description : The pressure co-efficient is the ratio of pressure forces to __________ forces. (A) Viscous (B) Inertial (C) Gravity (D) Surface tension
Last Answer : (A) Viscous
Description : Which of the following denotes the effect of compressibility in fluid flow? (A) Weber number (B) Mach number (C) Euler number (D) Reynolds number
Last Answer : (B) Mach numbe
Description : The co-efficient of drag and lift for an incompressible fluid depends on the (A) Reynolds number (B) Froude number (C) Mach number (D) All (A), (B) and (C)
Last Answer : (A) Reynolds numbe
Description : Euler number is defined as the ratio of inertia force to __________ force. (A) Pressure (B) Elastic (C) Gravity (D) Viscous
Last Answer : (A) Pressure
Description : Reynolds number is the ratio of (A) Viscous forces to gravity forces (B) Inertial forces to viscous forces (C) Viscous forces to inertial forces (D) Inertial forces to gravity forces
Last Answer : (B) Inertial forces to viscous forces
Description : Mach number is important in a fluid flow problem, when the inertia and __________ forces predominate. (A) Elastic (B) Viscous (C) Gravity (D) None of these
Last Answer : (A) Elastic
Last Answer : A) Elastic
Description : Aerodynamic noise resulting from turbulent gas flow is the most prevalent source of valve noise in fluid flow control. It is caused due to (A) Reynold stresses (B) Shear forces (C) Both (A) & (B) (D) Neither (A) nor (B)
Last Answer : (C) Both (A) & (B)
Description : The two important forces for a floating body are (A) Buoyancy, gravity (B) Buoyancy, pressure (C) Buoyancy, inertial (D) Inertial, gravity
Description : At low Reynold's number, the power (P) required for agitating a fluid in a stirred tank becomes independent of inertial forces. In this limit, indicate which of the following relations is satisfied: Po = ρ/ρN3 D5 : Power number Re = ρ N D2 ... Re -1.0 (B) Po ∝ Re 0.0 (C) Po ∝ Re 0.5 (D) Po ∝ Re 1.0
Last Answer : (B) Po ∝ Re 0.0 (C) Po ∝ Re 0.5
Description : At low Reynolds number (A) Viscous forces are unimportant (B) Viscous forces control (C) Viscous forces control and inertial forces are unimportant (D) Gravity forces contro
Last Answer : (C) Viscous forces control and inertial forces are unimportant
Description : A spherical particle is falling slow in a viscous liquid such that Reynolds number is less than 1. Which statement is correct for this situation? (A) Inertial and drag forces are important (B) Drag ... forces are important (C) Drag force and gravitational forces are important (D) None of the above
Last Answer : (B) Drag, gravitational and buoyancy forces are important
Description : At high Reynolds number (A) Inertial forces control and viscous forces are unimportant (B) Viscous forces predominate (C) Inertial forces are unimportant and viscous forces control (D) None of these
Last Answer : (A) Inertial forces control and viscous forces are unimportant
Description : Froude number is significant in (A) Supersonics, as with projectile and jet propulsion (B) Full immersion or completely enclosed flow, as with pipes, aircraft wings, nozzles etc. (C) Simultaneous motion ... gravity forces, and wave making effect, as with ship's hulls (D) All of the above
Last Answer : Answer: Option C
Description : Weber number is the ratio of inertial force to __________ force. (A) Surface tension (B) Gravity (C) Viscous (D) Elastic
Last Answer : (A) Surface tension
Description : N2 Re /NFr is called the __________ number. (A) Brinkman (B) Galileo (C) Archimedes (D) Euler
Last Answer : (B) Galileo
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 : The important dimensional group involved in the power requirement calculation in mixing operation is the __________ number. (A) Reynold's (B) Froude (C) Both (A) & (B) (D) Neither (A) nor (B)
Description : Which of the following is not dimension-less? (A) Froude number (B) Kinematic viscosity (C) Pressure co-efficient (D) None of these
Last Answer : (B) Kinematic viscosity
Description : Which of the following is not a dimension-less parameter? (A) Pressure-co-efficient (B) Froude number (C) Kinematic viscosity (D) Weber number
Last Answer : (C) Kinematic viscosity
Description : 02. The ratio of the inertia force to the gravity force is called Froude number. A) Agree B) Disagree
Last Answer : A
Description : Power number is the ratio of (A) Drag stress to inertial stress (B) Inertial stress to drag stress (C) Inertial stress to gravitational stress (D) Gravitational stress to drag stress
Last Answer : (A) Drag stress to inertial stress
Description : Pick out the correct statement. (A) Fanning friction factor is inversely proportional to Reynolds number always (B) The property of a randomly packed bed (with raschig rings) is given by the ratio of the ... the ratio of the speed of the fluid to that of sound in the fluid under conditions of flow
Last Answer : (D) Mach number is given by the ratio of the speed of the fluid to that of sound in the fluid under conditions of flow
Description : Mach number is defined as the ratio of the local flow velocity to the sonic velocity in the fluid. For what value of Mach number, the gases are considered incompressible? (A) < 0.3 (B) > 3 (C) 50 (D) 1
Last Answer : (A) < 0.3
Description : Mach number is the ratio of the speed of the (A) Fluid to that of the light (B) Light to that of the fluid (C) Fluid to that of the sound (D) Sound to that of the fluid
Last Answer : (C) Fluid to that of the sound
Description : Which of the following is directly concerned with the heat transfer? (A) Strouhal number (B) Sherwood number (C) Euler number (D) Grashoff number
Last Answer : (D) Grashoff number
Description : Which of the following is not a dimension-less parameter? (A) Euler number (B) Specific gravity (C) Fanning friction factor (D) None of these
Last Answer : (D) None of these
Description : For a given Reynold number as d/D for an orifice increases, Cd will (where, d & D are orifice & pipe diameters respectively). (A) Increase (B) Decrease (C) Remain constant (D) Either (A) or (B); depends on other factors
Last Answer : (A) Increase
Description : Which of the following quantities are computed by using the hydraulic radius for non-circular ducts? (A) Velocity and relative roughness (B) Head loss and velocity (C) Reynold number, relative roughness and head loss (D) Reynolds number and friction factor
Last Answer : (C) Reynold number, relative roughness and head loss
Description : In case of hydraulically smooth pipe, the resistance to flow depends only on the Reynolds number, whereas for a hydraulically rough pipe, the resistance to flow is governed by the relative roughness. Two pipes are said ... co-efficient for flows at equal Reynold number (D) All (A), (B) & (C)
Last Answer : (C) Friction co-efficient for flows at equal Reynold number
Description : The ratio of the inertial mass to gravitational mass is equal to which number? -Do You Know?
Last Answer : answer:
Description : The ratio of the inertial mass to gravitational mass is equal to which number?
Last Answer : 1
Description : 1. Which animal belongs to the family in which Panda belongs? 2. English is the official language of which State? 3. The ratio of the inertial mass to gravitational mass is equal to which number ... state is the largest producer of Gypsum? 20. By whom were The Chalukyas of Badami were succeeded?
Last Answer : Answer : 1 1. Bear 2. Nagaland 3. 1 4. Sagar Samrat 5. Kalibangan 6. Mahatma Gandhi 7. Rajendra Prasad 8. Head 9. South Chile 10. Magadh 11. 356 12. Oxygen 13. Minimum Reserve System 14. Monsoon winds 15. Hindukush 16. Lamarck 17. Food web 18. 6 months 19. Rajasthan 20. Rashtrakutas
Description : The ratio of the inertia force to the elastic force is called (A) Reynold's number (B) Froude's number (C) Weber's number (D) Mach number
Description : 08. The ratio of velocity of fluid in an undisturbed stream to the velocity of sound wave is known as Mach number. A) Yes B) No
Description : During agitation of liquids, the (A) Froude number is independent for the curves between power number and Reynolds number in baffled system (B) Power number becomes independent of impellers Reynolds number at high Reynolds number, ... , the centre vortex) on the power number (D) All (A), (B) and (C)
Last Answer : (D) All (A), (B) and (C)
Description : Which is not concerned directly with mass transfer? (A) Schmidt number (B) Sherwood number (C) Lewis relationship (D) Froude number
Last Answer : (D) Froude number
Description : Which of the following is concerned with both heat and mass transfer? (A) Lewis relationship (B) Nusselt number (C) Kutateladze number (D) Froude number
Last Answer : (A) Lewis relationship