Description : Select the correct statement (A) Weber's number is the ratio of inertia force to elastic force. (B) Weber's number is the ratio of gravity force to surface tension force. (C) Weber's number ... force to pressure force. (D) Weber's number is the ratio of inertia force to surface tension force.
Last Answer : Answer: Option D
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 : Reynold's number is the ratio of the inertia force to the (A) Surface tension force (B) Viscous force (C) Gravity force (D) Elastic force
Last Answer : Answer: Option B
Description : The ratio of the inertia force to the __________ is called Euler's number. (A) Pressure force (B) Elastic force (C) Surface tension force (D) Viscous force
Last Answer : Answer: Option A
Description : The ratio of the inertia force to the viscous force is called (A) Reynold's number (B) Froude's number (C) Weber's number (D) Euler's number
Description : Reynold's number is the ratio of inertia force to (A) Pressure force (B) Elastic force (C) Gravity force (D) Viscous force
Description : A flow in which __________ force is dominating over the viscosity is called turbulent flow. (A) Elastic (B) Surface tension (C) Viscous (D) Inertia
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 : 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 : 07. The ratio of the inertia force to the surface tension force is called Weber's number. A) Correct B) Incorrect
Last Answer : A
Description : Euler's number is the ratio of __________ force to pressure force. (A) Inertia (B) Gravity (C) Viscous (D) None of these
Description : Ratio of inertia force to elastic force is known as (A) Mach number (B) Froude number (C) Reynolds number (D) Weber's number
Description : 02. The ratio of the inertia force to the gravity force is called Froude number. A) Agree B) Disagree
Description : Which of the following pair will have identical dimensions? a.Pressure and surface tension b.Work and kinetic energy c.Momentum and force d.Moment of inertia and angular momentum e.None of the above
Last Answer : c. Momentum and force
Description : The product of mass and acceleration of flowing liquid is called (A) Inertia force (B) Viscous force (C) Gravity force (D) Pressure force
Description : If Reynolds number is greater than 1, then the (A) Viscous force is larger than the inertia force (B) Inertia force is larger than the viscous force (C) Inertia force is larger than the surface tension force (D) Inertia force is larger than the gravitational force
Last Answer : (B) Inertia force is larger than the viscous force
Description : The depth of centre of pressure (h) for a vertically immersed surface from the liquid surface is given by (where IG = Moment of inertia of the immersed surface about horizontal axis through its centre of gravity, A = Area of immersed surface, ... (IG/ ) - (B) (IG/ ) - (C) ( /IG) + (D) (IG/ ) +
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 : Ratio of inertia force to surface Jension is known as (A) Mach number (B) Froude number (C) (D) Weber's number
Description : The ratio of specific weight of a liquid to the specific weight of pure water at a standard temperature is called (A) Density of liquid (B) Specific gravity of liquid (C) Compressibility of liquid (D) Surface tension of liquid
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 : The force present in a moving liquid is (A) Inertia force (B) Viscous force (C) Gravity force (D) All of these
Description : The value of bulk modulus of a fluid is required to determine (A) Reynold's number (B) Froude's number (C) Mach number (D) Euler's number
Last Answer : Answer: Option C
Description : For similarity, in addition to models being geometrically similar to prototype, the following in both cases should also be equal (A) Ratio of inertial force to force due to viscosity (B) ... the four ratios of inertial force to force due to viscosity, gravitation, surface tension, and elasticity
Description : The water, retained by the soil in capillary pores (micropores), against gravity (-1/3 to - 31 bar) by the force of surface tension
Last Answer : Ans.Capillary water
Description : Which of the following forces does not act on a fluid at rest? (A) Viscous force (B) Gravity force (C) Hydrostatic force (D) Surface tension force
Last Answer : (A) Viscous force
Description : Rain drops falling through atmospheric air attain limited terminal velocity, because of (A) Upward thrust due to air (B) Viscous force exerted by air (C) Surface tension effects of water (D) Force of gravity
Last Answer : Option B
Description : Surface energy per unit area of a surface is numerically equal to (A) Atmospheric pressure (B) Surface tension (C) Force of adhesion (D) Force of cohesion
Description : Which one of the following statements is correct ? a) For water at 100o Celsius at sea level, the vapour pressure is equal to atmospheric pressure b) Surface energy (or tension) is caused by ... it both in static and in dynamic conditions d) Air is 50,000 times more compressible than water
Last Answer : c) Viscosity of a fluid is the property exhibited by it both in static and in dynamic conditions
Description : Ratio of pressure and inertia force gives __________ number. (A) Weber (B) Mach (C) Euler (D) Froude
Last Answer : (C) Euler
Description : If there were no gravity, which of the following will not be there for a fluid? (1) Viscosity (2) Surface Tension (3) Pressure (4) Upward Thrust
Last Answer : (4) Upward Thrust Explanation: If there is no gravity, there will not be any upward thrust to keep a liquid buoyant. Whenever a body is placed in a fluid, the fluid applies resultant up ... gravity at the given place. Up thrust increases with increase in acceleration due to gravity and vice versa.
Description : Small bubbles are perfectly spherical because of – (1) Gravity (2) Pressure (3) Viscosity (4) Surface tension
Last Answer : (4) Surface tension Explanation: Surface tension is responsible for the shape of liquid droplets. Although easily deformed, droplets of water tend to be pulled into a spherical shape by the cohesive ... shape minimizes the necessary "wall tension" of the surface layer according to Laplace's law.
Description : Pick out the wrong statement: (A) The vacuum pressure is always the negative gauge pressure (B) The pressure of the liquid measured by a piezometer tube is the gauge pressure (C) Manometric ... point at which the resultant pressure on an immersed surface acts, is known as the centre of gravity
Last Answer : (D) The point at which the resultant pressure on an immersed surface acts, is known as the centre of gravity
Last Answer : Upward Thrust
Description : Small bubbles are perfectly spherical because of (1) Gravity (2) Pressure (3) Viscosity (4) Surface tension
Last Answer : Surface tension
Description : Pick up the correct statement from the following: (A) The distance of the eccentric axial load from the C.G. beyond which tension develops, is known as kern distance (B) In visco ... (C) An orthotropic material has different properties in three mutually perpendicular directions (D) All the above
Last Answer : (D) All the above
Description : Horizontal acceleration due to earthquake results in (A) Hydrodynamic pressure (B) Inertia force into the body of the dam (C) Both (A) and (B) (D) None of the above
Description : 16. Surface tension force is the product of surface tension per unit length and cross-sectional area of flow. A) Correct B) Incorrect
Last Answer : B
Description : The force per unit length is the unit of (A) Surface tension (B) Compressibility (C) Capillarity (D) Viscosity
Description : Free surface of a liquid tends to contract to the smallest possible area due to force of (A) Surface tension (B) Viscosity (C) Friction (D) Cohesion
Description : Mach number is significant in (A) Supersonics, as with projectiles and jet propulsion (B) Full immersion or completely enclosed flow, as with pipes, aircraft wings, nozzles etc. (C) Simultaneous motion through ... gravity force, and wave making effects, as with ship's hulls (D) All of the above
Description : A falling drop of rain water ac-quires the spherical shape due to – (1) Viscosity (2) Surface Tension (3) Atmospheric pressure (4) Gravitational force
Last Answer : (2) Surface Tension Explanation: Raindrops start out as round high in the atmosphere as water collects on dust and smoke particles in clouds. But as raindrops fall, they lose their rounded ... the molecules stick together. The cause is the weak hydrogen bonds that occur between water molecules.
Description : The force per unit length across such a line in the surface is called _________. a. force per length b. surface tension c. Pressure d. Density
Last Answer : surface tension
Description : The force responsible for drops of liquid assuming a spherical shape is known as: w) strong nuclear force x) Van der Waals attraction y) surface tension z) osmotic pressure
Last Answer : ANSWER: Y -- SURFACE TENSION
Description : A falling drop of rain water acquires the spherical shape due to (1) Viscosity (2) Surface Tension (3) Atmospheric pressure (4) Gravitational force
Last Answer : Surface Tension
Description : Materials for rain-proof coats and tents owe their water proof properties to _____? A. Surface tension B. Viscosity C. Elasticity D. Specific gravity
Last Answer : ANSWER: A
Description : Materials for rain proof coats and tents owe their water proof properties to – (1) Surface tension (2) Viscosity (3) Specific gravity (4) Elasticity
Last Answer : (1) Surface tension Explanation: Materials for rain proof coats and tents owe their water proof properties to Surface Tension. The surface of a liquid behaves like an elastic membrane and therefore, has a tendency to contract. This property of liquid is called Surface Tension.
Description : Material for rain-proof coats and tents owe their water proof properties to ----? A. Surface tension (Answer) B. Viscosity C. Specific gravity D. Elasticity
Last Answer : A. Surface tension (Answer)
Description : Which of the following properties of a fluid is responsible for offering resistance to shear? (A) Surface tension (B) Viscosity (C) Specific gravity (D) All (A), (B), and (C)
Last Answer : (B) Viscosity