Description : Choose the wrong statement (A) Viscosity of a fluid is that property which determines the amount of its resistance to a shearing force (B) Viscosity is due primarily to interaction between fluid molecules (C) Viscosity of liquids decreases with increase in temperature (D) Viscosity of liquid
Last Answer : Answer: Option D
Description : The underground sewers are more subjected to A. Tensile force B. Compressive force C. Bending force D. Shearing force
Last Answer : ANS: B
Description : A rectangular beam 20 cm wide is subjected to a maximum shearing force of 10,000 kg, the corresponding maximum shearing stress being 30 kg/cm2 . The depth of the beam is (A) 15 cm (B) 20 cm (C) 25 cm (D) 30 cm
Last Answer : (C) 25 cm
Description : With increase in the shear rate, the apparent viscosity of pseudo-plastic fluids (A) Increases (B) Decreases (C) Remain same (D) May increase or decrease; depends on the magnitude of shear rate
Last Answer : (B) Decreases
Description : Two fluids are flowing through two similar pipes of the same diameter. The Reynold's number is same. For the same flow rate if the viscosity of a fluid is reduced to half the value of the ... (A) Increase (B) Decrease (C) Remain unchanged (D) Data insufficient to predict relative pressure drop
Last Answer : (B) Decrease
Description : Property of a fluid by which molecules of different kinds of fluids are attracted to each other is called (A) Adhesion (B) Cohesion (C) Viscosity (D) Compressibility
Last Answer : Answer: Option A
Description : Which one of the following statements is correct ? (a) Dynamic viscosity is the property of a fluid which is not in motion (b) Surface energy is a fluid property giving rise to the phenomenon ... results from the action of very high pressure (d) Real fluids have lower viscosity than ideal fluids
Last Answer : (d) Real fluids have lower viscosity than ideal fluids
Description : If a shaft is simultaneously subjected to a toque T and a bending moment M, the ratio of maximum bending stress and maximum shearing stress is (A) M/T (B) T/M (C) 2M/T (D) 2T/M
Last Answer : (C) 2M/T
Description : Pick up the correct statement from the following: (A) An unconfined compression test is a special case of triaxial compression test (B) An unconfined compression test is a special case of direct ... subjected to major principal stress till it fails due to shearing along the plane of the failure
Last Answer : Option A
Description : Absolute viscosity of a fluid is a function of the __________ of the fluid. (A) Motion (B) Pressure & temperature (C) Shearing stress (D) Both (B) & (C)
Last Answer : (D) Both (B) & (C)
Description : Pick out the wrong statement. (A) A fluid mass is free from shearing forces, when it is made to rotate with a uniform velocit (B) Newton's law of viscosity is not applicable to the ... types of bearings (D) Rise of water in capillary tubes reduces with the increasing diameter of capillary tubes
Last Answer : (B) Newton's law of viscosity is not applicable to the turbulent flow of fluid with linear velocity distribution
Description : If you undergo a CAT scan then you have been subjected to (1) a computer aided test (2) a computerised axial topography (3) a computer aided tomography (4) a computerised axial tomography
Last Answer : a computerised axial tomography
Description : . Pick out the wrong statement. (A) The eddy viscosity is a function of the type of turbulence involved (B) The eddy viscosity is a fluid property (C) The viscosity of gas increases with increase in temperature (D) The viscosity of a liquid increases with decrease in temperature
Last Answer : (B) The eddy viscosity is a fluid property
Description : Fluids flow with zero viscosity is called?
Last Answer : Super fluids eg : Honey; Coaltar; Glycerine etc
Description : Plate towers are preferred to packed towers, when large temperature changes are involved, because of the reason that the (A) Packing may be crushed due to thermal expansion/contraction of the ... C) Viscosity variation of the fluids may cause channelling/flooding (D) None of these
Last Answer : (A) Packing may be crushed due to thermal expansion/contraction of the components of the equipments
Description : Power required for mixing Newtonian fluids is a function of the (A) Speed of impeller, diameter of impeller & viscosity (B) Density & viscosity of fluid only (C) Density of fluid, viscosity of fluid & impeller dia only (D) None of these
Last Answer : (D) None of these
Description : Momentum transfer in laminar flow of fluids results due to the (A) Viscosity (B) Density (C) Velocity gradient (D) None of these
Last Answer : (C) Velocity gradient
Description : For laminar flow of Newtonian fluids through a circular pipe, for a given pressure drop and length & diameter of pipe, the velocity of fluid is proportional to (where, μ = fluid viscosity ) (A) μ (B) 1/μ (C) √μ (D) 1/√μ
Last Answer : (B) 1/μ
Description : Poise is the unit of (A) Surface tension (B) Capillarity (C) Viscosity (D) Shear stress in fluids
Last Answer : Answer: Option C
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 : How should be a force applied on a body to produce shearing stress?
Last Answer : How should be a force applied on a body to produce shearing stress?
Description : What has a shearing force?
Last Answer : Transform
Description : The bending moment is maximum on a section where shearing force (A) Is maximum (B) Is minimum (C) Is equal (D) Changes sign
Last Answer : (D) Changes sign
Description : In a loaded beam, the point of contraflexure occurs at a section where (A) Bending moment is minimum (B) Bending moment is zero or changes sign (C) Bending moment is maximum (D) Shearing force is maximum
Last Answer : Answer: Option B
Description : Failure of a slope occurs only when total shear force is A) Equal to total shearing strength (B) Greater than total shearing strength (C) Less than total shearing strength (D) None of these
Description : The shearing force acting along the slice of a curved surface of slippage, causes the soil to slide (A) Down at the centre (B) Down at the toe (C) Upward at the centre (D) None of these
Description : The expression EI d4y/dx4 at a section of a member represents a. Shearing force b. rate of loading c. bending moment d.slope.
Last Answer : b. rate of loading
Description : .The expression EI d3y/dx3 at a section of a member represents a.Shearing force b.rate of loading c.bending moment d.slope.
Last Answer : a.Shearing force
Description : The expression EI d2y/dx2 at a section of a member represents a. Shearing force b.rate of loading c.bending moment d.slope.
Last Answer : c.bending moment
Description : Which transformation distorts the shape of an object such that the transformed shapeappears as if the object were composed of internal layers that had been caused to slide over each other? a.Rotation b.Scaling up c.Scaling down d.Shearing
Last Answer : d.Shearing
Description : Fuel oil is subjected to visbreaking to reduce its (A) Pour point (B) Viscosity (C) Pressure drop on pumping (D) All (A), (B) and (C
Last Answer : (D) All (A), (B) and (C
Description : The property to flow is unique to fluids. Which one of the following statements is correct ? -Maths 9th
Last Answer : NEED ANSWER
Last Answer : (c) Gases and liquids behave like fluids. Both gases and liquids tend to flow due to less force of attraction between their particles. Also, they require vessel to keep them. Solids do not flow.
Description : Composite property applicable to all fluids a. Entropy b. Enthalpy c. Specific Heat d. None of the above
Last Answer : Enthalpy
Description : The modulus of rigidity is the ratio of (1) Longitudinal stress to longitudinal strain (2) Volume stress to volume strain (3) Shearing stress to shearing strain (4) Tensile stress to tensile strain
Last Answer : (3) Shearing stress to shearing strain Explanation: In materials science, shear modulus or modulus of rigidity, denoted by G, or sometimes S , is defined as the ratio of shear stress to the shear ... the case of an object that's shaped like a rectangular prism, it will deform into a parallelepiped.
Description : The modulus of rigidity is the ratio of (1) longitudinal stress to longitudinal strain (2) Volume stress to volume strain (3) shearing stress to shearing strain (4) tensile stress to tensile strain
Last Answer : shearing stress to shearing strain
Description : __________ is the property of a soil to undergo large deformations when stressed, without cracking or crumbling due to the lubricating effect of the water films between adjacent particles. a. Bending b. Malleability c. Ductility d. Plasticity
Last Answer : d. Plasticity
Description : Black cotton soil is unsuitable for foundations because its (A) Bearing capacity is low (B) Permeability is uncertain (C) Particles are cohesive (D) Property to undergo a volumetric change due to variation of moisture content
Description : Labetalol differs from propranolol in that: A. It has additional α1 blocking property B. It is a selective β1 blocker C. It does not undergo first pass metabolism D. All of the above
Last Answer : A. It has additional α1 blocking property
Description : The dimensional formula ML⁻¹T⁻² corresponds to – (1) Modulus of elasticity (2) Viscosity (3) Moment of a force (4) Thrust
Last Answer : (1) Modulus of elasticity Explanation: M Li- T-2 is the dimension of any quantity that is force per unit area such as Pressure or Stress, Young's Modulus, Bulk Modulus, Modulus of Rigidity, ... the ratio of the stress applied to a body or substance to the resulting strain within the elastic limit.
Description : A liquid disturbed by stirring comes to rest due to – (1) density (2) surface tension (3) viscosity (4) centripetal force
Last Answer : (3) viscosity Explanation: It happens because of viscosity. The viscosity of a fluid is a measure of its resistance to gradual deformation by shear stress or tensile stress. It is due to friction between neighboring parcels of the fluid that are moving at different velocities.
Description : The oil in the wick of an oil lamp rises up due to: (1) capillary action (2) low viscosity of oil (3) gravitational force (4) pressure difference
Last Answer : (1) capillary action Explanation: The oil in the wick of an oil lamp rises up due to capillary action.
Description : A needle or a pin floats on the surface of water because of – (1) Surface tension (2) Surface energy (3) Viscosity (4) Adhesive force
Last Answer : (1) Surface tension Explanation: The pin or needle floats because of an invisible elastic skin on the surface of the water. This elastic skin is called surface tension. Surface tension of the water leads to forces strong enough to support the needle's weight.
Description : The oil in the wick of lamp rises due to (1) Pressure difference (2) Pheonomenon of capillarity (3) Low viscosity of oil (4) Force of cohesion
Last Answer : (2) Pheonomenon of capillarity Explanation: The oil in the wick of lamp rises due to phenomenon of capillarity. This phenomenon is called molecular property of matter.
Description : Ball pen functions on the principle of : (1) Viscosity (2) Boyle's Law (3) Gravitational force (4) Surface tension
Last Answer : (4) Surface tension Explanation: The ballpoint pen is one of the most simple and yet ubiquitous devices whose function depends on surface tension. With a pen held upright, gravity and surface tension act in concert to get ink onto the ball.
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 dimensional formula ML–1T –2 corresponds to (1) Modulus of elasticity (2) Viscosity (3) Moment of a force (4) Thrust
Last Answer : Modulus of elasticity
Description : A needle or a pin floats on the surface of water because of (1) Surface tension (2) Surface energy (3) Viscosity (4) Adhesive force
Last Answer : Surface tension
Description : A liquid disturbed by stirring comes to rest due to (1) density (2) surface tension (3) viscosity (4) centripetal force
Last Answer : viscosity