Description : bulk modulus of elasticity with increase in pressure (A) Increases (B) Decreases (C) Remain constant (D) Increases first up to certain limit and then decreases
Last Answer : Answer: Option A
Description : The bulk modulus of elasticity (A) Has the dimensions of 1/pressure (B) Increases with pressure (C) Is large when fluid is more compressible (D) Is independent of pressure and viscosity
Last Answer : Answer: Option B
Description : The bulk modulus of elasticity of a liquid (A) Is zero for incompressible liquid (B) Decreases with pressure (C) Is independent of temperature & pressure (D) Increases with pressure
Last Answer : (D) Increases with pressure
Description : Bulk modulus of a fluid is the ratio of (A) Shear stress to shear strain (B) Increase in volume to the viscosity of fluid (C) Increase in pressure to the volumetric strain (D) Critical velocity to the viscosity of fluid
Last Answer : Answer: Option C
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
Description : The volume of a fluid __________ as the pressure increases. (A) Remains same (B) Decreases (C) Increases (D) None of these
Description : Due to a rise in temperature, the viscosity and the unit weight of the percolating fluid are reduced to 60% and 90% respectively. If other things remain constant, the coefficient of permeability (A) Increases by 25 % (B) Increases by 50 % (C) Increases by 33.3 % (D) Decreases by 33.3 %
Last Answer : (B) Increases by 50 %
Description : With the increase in depth, the hydrostatic pressure in an un-accelerated incompressible fluid (in a constant gravitational field) (A) Decreases (B) Increases linearly (C) Increases exponentially (D) Remain constant
Last Answer : (B) Increases linearly
Description : The value of coefficient of velocity for a sharp edged orifice __________ with the head of water. (A) Decreases (B) Increases (C) Remain same (D) None of these
Description : Bulk diffusion in catalyst pore __________ with increase in pressure. (A) Increases (B) Decreases (C) Remains unchanged (D) Increases exponentially
Last Answer : (B) Decreases
Description : In an isothermal atmosphere, the pressure (A) Decreases linearly with elevation (B) Remain constant (C) Varies in the same way as the density (D) Increases exponentially with elevation
Description : For a stable phase at constant pressure and temperature, the fugacity of each component in a binary system __________ as its mole fraction increases. (A) Decreases (B) Increases (C) Remain same (D) Decreases linearly
Last Answer : (B) Increases
Description : Latent heat of dry steam at atmospheric pressure is 539 Kcal/kg; which __________ with increase in the pressure of steam. (A) Decreases (B) Increases (C) Remain same (D) May increase or decrease
Last Answer : (A) Decreases
Description : For an incompressible fluid, the bulk modulus of elasticity is (A) 5 kg/m3 (B) ∞ N/m2 (C) 1 N (D) 0 N/m
Last Answer : (B) ∞ N/m2
Description : The strain energy due to volumetric strain (A) Is directly proportional to the volume (B) Is directly proportional to the square of exerted pressure (C) Is inversely proportional to Bulk modulus (D) All the above
Last Answer : (D) All the above
Description : Whenever a plate is held immersed at some angle with the direction of flow of the liquid, it is subjected to some pressure. The component of this pressure, in the direction of flow of the liquid, is known as (A) Lift (B) Drag (C) Stagnation pressure (D) Bulk modulus
Description : The dynamic viscosity of gases __________ with rise in temperature. (A) Remain unaffected (B) Increases (C) Decreases (D) None of these
Description : The dynamic viscosity of the liquid __________ with rise in temperature. (A) Remain unaffected (B) Increases (C) Decreases (D) None of these
Description : The dimensional formula of bulk modulus of elasticity is same as that of the (A) Pressure (B) Density (C) Force (D) None of these
Last Answer : Option A
Description : With an increase in pressure in gaseous phase chemical reactions, the fractional conversion __________ when the number of moles decreases. (A) Increases (B) Decreases (C) Remain unaffected (D) Unpredictable from the data
Last Answer : (A) Increases
Description : Fugacity of a component in an ideal gas mixture is equal to the partial pressure of that component in the mixture. The fugacity of each component in a stable homogeneous solution at constant pressure and ... increases. (A) Decreases (B) Decreases exponentially (C) Increases (D) Remain constant
Last Answer : (C) Increases
Description : For very great pressures, viscosity of moss gases and liquids (A) Remain same (B) Increases (C) Decreases (D) Shows erratic behaviour
Last Answer : Answer: Option D
Description : For the flow of gases through a capillary, with increase in temperature, the permeability __________ as per Knudsen law. (A) Increases (B) Decreases (C) Remain same (D) Either (A) or (B); depends on the gas
Description : With increase in the mass velocity of the gas, the rate of drying during the constant rate period __________, if the conduction and radiation through the solid are negligible. (A) Increases (B) Decreases (C) Remain same
Description : As the C/H ratio of the fuel increases, the amount of CO2 formed on combustion __________ for the same percentage of excess air. (A) Decreases (B) Increases (C) Remain same (D) May increase or decrease depending on the type of fuel
Description : The boundary layer thickness at a given section along a flat plate __________ with increasing Reynold's number. (A) Increases (B) Decreases (C) Remain same (D) May increase or decrease
Description : If E, N, K and 1/m are modulus of elasticity, modulus of rigidity. Bulk modulus and Poisson ratio of the material, the following relationship holds good (A) E = 3K (1 - 2/m) (B) E = 2N (1 + 1/m) (C) (3/2)K (1 - 2/m) = N (1 + 1/m) (D) All the above
Description : For a given material, if E, C, K and m are Young's modulus, shearing modulus, bulk modulus and Poisson ratio, the following relation does not hold good (A) E = 9KC/3K + C (B) E = 2K (1 + 2/m) (C) E = 2C (1 + 1/m) (D) E = 3C (1 - 1/m)
Last Answer : (C) E = 2C (1 + 1/m)
Description : A liquid compressed in cylinder has a volume of 0.04 m3 at 50 kg/cm² and a volume of 0.039 m3 at 150 kg/cm². The bulk modulus of elasticity of liquid is (A) 400 kg/cm² (B) 4000 kg/cm² (C) (D)
Description : With increase in temperature, the solubility of gases in liquids, at fixed pressure (A) Increases (B) Decreases (C) Remain same (D) Either (A) or (B), depends on the system
Description : With the lowering of equilibrium pressure, at a given temperature, the amount of adsorbate on the adsorbent (A) Increases (B) Decreases (C) Remain same (D) Either (A) or (B), depends on the system
Description : With increase in reduced temperature, the fugacity co-efficient of a gas at constant reduced pressure (A) Increases (B) Decreases (C) Remain same (D) Decreases linearly
Description : With increase in compression ratio, the volumetric efficiency of air compressor (A) Increases (B) Decreases (C) Remain same (D) May increase or decrease (depends on the suction pressure)
Description : Assuming all other parameters remain constant, what happens to the pressure of a gas when the volume of the gas is increased? w) increases x) decreases y) fluctuates sinusoidally z) remains the same
Last Answer : ANSWER: X -- DECREASES
Description : Adiabatic bulk modulus is equal to: A. Υ × P; where Υ: the ratio of the specific heat capacities of the gas, P: pressure B. Pressure C. The ratio of the specific heat capacities of the gas D. Υ ⁄ P; where Υ: the ratio of the specific heat capacities of the gas, P: pressure
Last Answer : Υ × P; where Υ: the ratio of the specific heat capacities of the gas, P: pressur
Description : Isothermal bulk modulus is equal to A. Υ × P; where Υ: the ratio of the specific heat capacities of the gas, P: pressure B. Pressure C. The ratio of the specific heat capacities of the gas D. Υ ⁄ P; where Υ: the ratio of the specific heat capacities of the gas, P: pressure
Last Answer : Pressure
Description : . With increase in temperature, the electrical conductivity of semiconductors (A) Increases (B) Decreases (C) Remain constant (D) Either (A) or (B), depends on the type of semi-conductor
Description : Dynamic viscosity of most of the liquids with rise in temperature (A) Increases (B) Decreases (C) Remain unaffected (D) Unpredictable
Description : Dynamic viscosity of most of the gases with rise in temperature (A) Increases (B) Decreases (C) Remain unaffected (D) Unpredictable
Description : The film thickness for laminar film condensation on vertical surface __________ from top to bottom. (A) Cumulatively increases (B) Cumulatively decreases (C) Remain constant (D) And the surface conductance increase
Last Answer : (A) Cumulatively increases
Description : The absorptivity of a grey body at a given temperature __________ with increasing wavelength of radiation. (A) Increases (B) Decreases (C) Remain constant (D) May increase or decrease; depends on the material
Last Answer : (D) May increase or decrease; depends on the material
Description : In a single evaporator system, the steam economy __________ by creating vacuum in the evaporator. (A) Increases (B) Decreases (C) Remain constant (D) May increase or decrease, depends on the vacuum
Description : C.V. (kcal/Nm3 ) of gaseous fuels __________ with increase in molecular weight. (A) Decreases (B) Increases (C) Remain constant (D) May increase or decrease, depends on combustibles
Last Answer : (D) May increase or decrease, depends on combustibles
Description : The amount of chemical coagulant added for treatment of polluted water __________ with increase in temperature of the polluted water to be treated. (A) Decreases (B) Increases (C) Remain constant (D) May increase or decrease; depends on the chemical characteristics of polluted water
Description : The equilibrium constant of a catalytic chemical reaction __________ due to the presence of a catalyst. (A) Increases (B) Decreases (C) Remain unaffected (D) Unpredictable from the data
Last Answer : (C) Remain unaffected
Description : The equilibrium constant of chemical reaction __________ in the presence of catalyst. (A) Increases (B) Decreases (C) Remain unaffected (D) Can either increase or decrease (depends on the type of catalyst)
Description : The filtrate flow rate in constant pressure filtration (A) Continuously increases (B) Continuously decreases (C) Remain constant throughout (D) May increase or decrease; depends on the pressure
Last Answer : (B) Continuously decreases
Description : Under conditions of flooding in packed tower, the gas pressure drop (A) Decreases rapidly (B) Increases rapidly (C) Remain constant (D) Is maximum
Last Answer : (D) Is maximum
Description : For water, when the pressure increases, the viscosity (A) Also increases (B) Decreases (C) Remain constant (D) First decreases, and then increases
Last Answer : (D) First decreases, and then increases
Description : With increase in temperature, the vapor pressure of liquids (A) Increases (B) Increases linearly (C) Decreases (D) Remain constant