Description : The dynamic viscosity of gases __________ with rise in temperature. (A) Remain unaffected (B) Increases (C) Decreases (D) None of these
Last Answer : Answer: Option B
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
Last Answer : Answer: Option A
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 rise of temperature, the sensitivity of a bubble tube (A) Decreases (B) Increases (C) Remains unaffected (D) None of the above
Last Answer : (A) Decreases
Description : The rise or depression of liquid in a tube due to surface tension will increase in size of tube will (A) Increase (B) Remain unaffected (C) May increase or decrease depending on the characteristics of liquid (D) Decrease
Last Answer : Answer: Option D
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 : 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 : With increase in the temperature, viscosity of a liquid (A) Increases (B) Decreases (C) Remain constant (D) May increase or decrease; depends on the liquid
Last Answer : (B) Decreases
Description : Viscosity of gases __________ with increase in temperature. (A) Increase very rapidly (B) Increase slowly (C) Decrease slowly (D) Remain unaffected
Last Answer : (B) Increase slowly
Description : With increase in temperature, the rate of extraction in leaching (solidliquid extraction system). (A) Increases (B) Decreases (C) Remain unaffected (D) Increases Linearly
Description : With decrease in temperature, the equilibrium conversion of a reversible endothermic reaction (A) Decreases (B) Increases (C) Remain unaffected (D) Increases linearly with temperature
Description : With increase in temperature, the equilibrium conversion of a reversibleexothermic reaction (A) Decreases (B) Increases (C) Remain unaffected (D) Decreases linearly with temperature
Description : Viscosity of a liquid decreases __________ with rise in temperature. (A) Exponentially (B) Linearly (C) Logarithmically (D) None of these
Last Answer : (C) Logarithmically
Description : With increase in solvent rate, the number of transfer units, NtoG, for a fixed degree of absorption from a fixed amount of gas (A) Increases (B) Decreases (C) Decreases linearly (D) Remain unaffected
Description : For a fixed number of ideal stages in a distillation column, as the reflux ratio is increased, the difference in composition between the top and bottom product streams (A) Increases (B) Decreases (C) Remain unaffected (D) Passes through a maximum
Description : With increase in the distance between the heat source and the object receiving the heat, the radiation heat transfer (A) Decreases (B) Increases (C) Increases exponentially (D) Remain unaffected
Description : The relative heat absorption for successively added equal areas of boiler convection heating surfaces__________ (A) Increases (B) Decreases (C) Remain unaffected (D) First increases and then decreases
Description : For very great pressures, viscosity of moss gases and liquids (A) Remain same (B) Increases (C) Decreases (D) Shows erratic behaviour
Description : Viscosity of a polymer solution or melt (A) Decreases with increase in molecular weight (B) Decreases with increase in temperature (C) Increases with increase in temperature (D) Does not vary with temperature rise
Last Answer : (C) Increases with increase in temperature
Description : Thermal conductivities of most of the liquids __________ with rise in temperature. (A) Increases (B) Decreases (C) Remains unchanged (D) May increase or decrease; depends on the liquid
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 ship travels from fresh water to a sea or ocean, it will: A. Rise a little higher B. Sink completely C. Sink a little lower D. Remain unaffected
Last Answer : ANSWER: A
Description : According to the effective demand principle: a) at a certain price, the output shall not be determined by any known factor b) at a certain price, the output will remain unaffected by rise or ... certain price, equilibrium output will be solely determined by the aggregate demand d) none of the above
Last Answer : c) at a certain price, equilibrium output will be solely determined by the aggregate demand
Description : With increase in density, the viscosity of petroleum products (A) Increases (B) Decreases (C) Remain same (D) Either (A) or (B)
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 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
Description : Pick out the wrong statement. (A) Bubble size increases with the dynamic viscosity of the liquid in case of nucleate pool boiling (B) Thermal conductivity of a dry material is more than ... in kg/hr in an evaporator (D) Vaporisation of organic substances in evaporator mostly causes foam formation
Last Answer : (B) Thermal conductivity of a dry material is more than that of the damp material
Description : If the radius of blood vessels of a person decreases his/her blood pressure will (1) increase (2) decrease (3) remain unaffected (4) increase for males and decrease for females
Last Answer : (1) increase Explanation: An obese person has a greatly increased number of blood vessels because of the amount of adipose tissue that must be serviced. As a result, the total length of his or ... words, the smaller the diameter of the vessel, the greater the resistance it offers to blood flow.
Last Answer : increase
Description : Bulk modulus of a fluid __________ as the pressure increases. (A) Remain same (B) Decreases (C) Increases (D) None of these
Last Answer : Answer: Option C
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 : 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
Description : 12. Kinematic viscosity is the product of dynamic viscosity and the density of the liquid. A) Yes B) No
Last Answer : B
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 : For the same system, if the same liquid used in an absorber is decreased, the tower height will (A) Increase (B) Decrease (C) Remain unaffected (D) Decrease or increase; depends on the type of liquid
Last Answer : (A) Increase
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
Last Answer : Option A
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 : 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 : 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 : 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 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 : How the interest-level of a country is affected by FDI? (1) increases (2) decreases (3) remains unaffected (4) there is increase or decrease
Last Answer : (2) decreases Explanation: A higher international interest rate will decrease FDI since it means a higher cost of fund in international market, and vice versa. Interest rate is a measure of the cost of capital ... to a decrease in FDI. Interest rate and FDI can both be the cause and effect of other.
Description : What happens to the beamwidth of an antenna as the gain is increased? A. The beamwidth increases geometrically as the gain is increased. B. The beamwidth increases arithmetically as the gain is increased ... unaffected by the gain of the antenna. D. The beamwidth decreases as the gain is increased.
Last Answer : D. The beamwidth decreases as the gain is increased.
Description : With increase in gas rate, the number of transfer units, NtoG, for a fixed degree of absorption by a fixed amount of solvent (A) Increases (B) Decreases (C) Decreases linearly (D) Remains unaffected
Description : . In a distillation column, with increase in the reflux ratio, the heat removed in the cooler (A) Increases (B) Decreases (C) Remains unaffected (D) And the heat required in reboiler decreases
Description : The efficiency of Diesei cycle with decrease in cut off (a) increases (b) decreases (c) remains unaffected (d) first increases and then decreases (e) first decreases and then increases.
Last Answer : Answer : a
Description : Increase amount of non-grain material on the straw walker _______ the walker losses a) Decreases b) Increases c) Unaffected d) Equal
Last Answer : b) Increase