Description : Small pressure differences in liquids is measured using a/an (A) U-tube manometer (B) Inclined tube manometer (C) Pitot tube (D) None of these
Last Answer : (B) Inclined tube manometer
Description : A differential pressure cell is used for (A) Measuring small pressure difference in gases (B) Measuring small pressure difference in liquids (C) Remote recording of pressure difference (D) Measuring the difference of the impact & the static pressure
Last Answer : (C) Remote recording of pressure difference
Description : Fugacity is a measure of the (A) Escaping tendencies of the same substance in different phases of a system (B) Relative volatility of a mixture of two miscible liquids (C) Behaviour of ideal gases (D) None of these
Last Answer : (A) Escaping tendencies of the same substance in different phases of a system
Description : The diffusivity, DAB (for component A diffusing in B) is equal to the diffusivity DBA (for component B diffusing in A) for a binary mixture of (A) Newtonian liquids (B) Non-Newtonian liquids (C) Ideal gases (D) Real gases
Last Answer : (C) Ideal gases
Description : What pressure measuring device consists of a coiled hollow tube that tends to straighten out when the tube is subjected to an internal pressure? A. Aneroid B. Manometer C. Bourdon pressure gage D. Barometer
Last Answer : Bourdon pressure gage
Description : A Pitot tube indicates 5 cm of water (manometer) when it is being used for measuring velocity of air. The velocity of air in m/sec is (A) 5 (B) 14.1 (C) 56.22 (D) 28.2
Last Answer : (D) 28.2
Description : Working principle of manometer comprises of balancing a coloumn of liquid against the pressure to be measured. Inclined tube manometer is especially used for the measurement of __________ pressure. (A) Small differential (B) Atmospheric (C) Absolute (D) Gage
Last Answer : (A) Small differential
Description : Very small pressure difference (< 5 mm water column) can be most conveniently measured by a/an __________ manometer. (A) U-tube water (B) U-tube mercury (C) Inclined tube mercury (D) Inclined tube water
Last Answer : (D) Inclined tube water
Description : In case of non-ideal gases and liquids, the molal diffusivity (A) Varies inversely as the pressure (B) Varies directly as the pressure (C) Is independent of pressure (D) Is equal to the volumetric diffusivity
Last Answer : (C) Is independent of pressure
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
Last Answer : (B) Decreases
Description : Hot wire anemometer is used to measure the (A) Velocity of liquids (B) Temperature of liquids (C) Velocity of gases (D) Pressure of liquids
Last Answer : (C) Velocity of gases
Description : Steam distillation is not recommended to be used, if the (A) Azeotropic mixture is to be separated and the final product is miscible with water (B) Liquids decompose, if ... unstable or has the tendency to react with other components associated with it, at the boiling temperature
Last Answer : (A) Azeotropic mixture is to be separated and the final product is miscible with water
Description : Which is the most efficient and best for measuring very small flow rate of gases? (A) Venturimeter (B) Orificemeter (C) Rotameter (D) Flow nozzle
Last Answer : (C) Rotameter
Description : Hot wire anemometer is used to measure (A) Pressure in gases (B) Liquid discharge (C) Pressure in liquids (D) Gas velocities
Last Answer : Answer: Option D
Description : For gases, the thermal conductivity increases with temperature rise. For liquids, with increase in concentration, its thermal conductivity generally (A) Decreases (B) Increases (C) Remains unchanged (D) Increases exponentially
Last Answer : (A) Decreases
Description : Which of the following is generally considered as opaque surface towards radiations? (A) Gases (B) Solids (C) Liquids (D) Both (B) and (C)
Last Answer : (D) Both (B) and (C)
Description : Identification of pipelines carrying different liquids and gases is done by the __________ of the pipe. (A) Diameter (B) Colour (C) Altitude (D) None of these
Last Answer : (B) Colour
Description : Kopp's rule is used to calculate the heat capacity of (A) Solids (B) Liquids (C) Gases (D) All (A), (B) & (C)
Last Answer : (A) Solids
Description : Increase in temperature, in general results in the (A) Decrease in the viscosities of both liquids & gases (B) Increase in the viscosities of both liquids & gases (C) Increase in the viscosity of ... decrease in that of gases (D) Decrease in the viscosity of liquids and increase in that of gases
Last Answer : (D) Decrease in the viscosity of liquids and increase in that of gases
Description : Mention the differences between saturated and unsaturated hydrocarbons.
Last Answer : Saturated hydrocarbons 1. Hydrocarbons in which carbon atoms are linked by single covalent bonds. 2. Names of these hydrocarbons end with ane'. Unsaturated hydrocarbons 1. Hydrocarbons in which carbon ... and triple covalent bonds. 2. Names of these hydrocarbons end with ene' or yne'
Description : Hygrometer is used for measuring the ------? A. Speed of sound B. Density of milk C. Humidity of air (Answer) D. Specific gravity of liquids E. None of these
Last Answer : C. Humidity of air (Answer)
Description : On all instruments like measuring cylinder, pipette and burette, readings are always taken at the bottom of the meniscus of liquid. This is not true for liquids like A. Oil B. Ink C. Mercury D. Seawater
Last Answer : Mercury
Description : The Richter Scale is used for measuring of – A) Density of liquids B) Speed of Aeroplane C) Intensity of earthquakes D) Depth of mines.
Last Answer : C) Intensity of earthquakes
Description : 10. Catalytic converters are fitted into automobiles to reduce emission of harmful gases. Catalytic converters change un burnt hydrocarbons into (a) carbon dioxide and water (b) carbon mono oxide (c) methane (d) carbon dioxide and methane.
Last Answer : (a) carbon dioxide and water
Description : Petrolatum is (A) Same as petroleum ether (B) Petroleum coke (C) A mixture of microcrystalline wax in viscous hydrocarbon liquids (D) None of these
Last Answer : (C) A mixture of microcrystalline wax in viscous hydrocarbon liquids
Description : Pressure difference between two points in vessels, pipelines or in two different pipelines can be measured by a differential manometer. The pressure difference measured as the mm of water column in case of mercury-water, differential manometer is ... mm). (A) H (B) 12.6 H (C) 13.6 H (D) 14.6 H
Last Answer : (B) 12.6 H
Description : Differential manometer measures the (A) Atmospheric pressure (B) Sub-atmospheric pressure (C) Pressure difference between two points (D) None of these
Last Answer : (C) Pressure difference between two points
Description : Bed pressure drop in an air fluidised bed of catalyst particles (ρp = 200 kg/m3, Dp = 0.05 cm) of 60 cm bed depth and bed porosity of 0.5 expressed in cm of water (manometer) is (A) 90 (B) 60 (C) 45 (D) 30
Last Answer : (B) 60
Description : 2. Differential manometer measures the (A) Absolute pressure (B) Gauge pressure (C) Pressure difference (D) Pressure gradien
Last Answer : (C) Pressure difference
Description : Correction for capillary effect in manometers (used for pressure measurement) need not be applied, if diameter of the manometer tube is __________ mm. (A) < 4 (B) > 4 (C) > 12.5 (D) < 10
Last Answer : (C) > 12.5
Description : Pick out the wrong statement. (A) The mole fraction of solute is directly proportional to the molality of a 'dilute' solution (B) For a non-reacting binary mixture of ideal gases, the partial ... at all temperature (D) The relative volatility of a binary mixture at the Azeotropic composition is 1
Last Answer : (C) Azeotropes obey Raoult's law at all temperature
Description : Pick out the correct statement. (A) Higher hold up of the solid in the rotary dryer results in better exposure of the solids to the gas (B) The 'Hatta number' is ... reflux in case of distillation operation requires infinite number of plates for a binary system separation
Last Answer : (C) For a non-reacting binary mixture of ideal gases, the partial pressure distribution of both components is linear in the case of steady state equimolal counter-diffusion
Description : Pick out the wrong statement. (A) Activity co-efficient is dimensionless. (B) In case of an ideal gas, the fugacity is equal to its pressure. (C) In a mixture of ideal gases, the fugacity of ... equal to the partial pressure of the component. (D) The fugacity co-efficient is zero for an ideal gas
Last Answer : (D) The fugacity co-efficient is zero for an ideal gas
Description : Octane number of gasoline is obtained by comparing the performance of the engine when running on a mixture of the following hydrocarbons A. ethane and methane B. normal heptane and iso-octane C. iso-heptane and octane D. iso-octane and TEL
Last Answer : ANSWER : B
Description : Cooking gas supplied in cylinders by gas agencies is 1. In the form of a liquid 2. In the form of a gas 3. A mixture of hydrocarbons 4. A heterogeneous solution The correct statements are: (a) 1 and 3 (b) 2 only (c) 3 and 4 (d) 1 and 4
Last Answer : Ans:(a)
Description : Petroleum consists of a mixture of – (1) Carbohydrates (2) Carbonates (3) Hydrocarbons (4) Carbides
Last Answer : (3) Hydrocarbons Explanation: Petroleum (petroleum, from Latin: 'petra' (rock) + Latin: oleum (oil) or crude oil is a naturally occurring flammable liquid consisting of a complex mixture of ... variety of materials, and it is estimated that the world consumes about 88 million barrels each day.
Description : Wax used for making candle is chemically a mixture of – (1) aliphatic hydrocarbons (2) aromatic hydrocarbons (3) cyclic hydrocarbons (4) aliphatic and aromatic hydrocarbons
Last Answer : (1) aliphatic hydrocarbons Explanation: An aliphatic compound is a hydrocarbon compound containing carbon and hydrogen joined together in straight chains, branched trains or non-aromatic rings ... naturally occurring. Waxes are organic compounds that characteristically consist of long alkyl chains.
Description : Petroleum is a mixture of – (1) elements (2) hydrocarbons (3) polymers (4) salts
Last Answer : (2) hydrocarbons Explanation: Petroleum or crude oil is a naturally occurring flammable liquid consisting of a complex mixture of hydrocarbons of various molecular weights and other liquid ... zooplankton and algae, are buried underneath sedimentary rock and undergo intense heat and pressure.
Description : High grade coal is mainly which of the following? w) methane x) propane y) a mixture of hydrocarbons z) anthracene
Last Answer : ANSWER: Y -- A MIXTURE OF HYDROCARBONS
Description : Wax used for making candle is chemically a mixture of (1) aliphatic hydrocarbons (2) aromatic hydrocarbons (3) cyclic hydrocarbons (4) aliphatic and aromatic hydrocarbons
Last Answer : aliphatic hydrocarbons
Description : Petroleum consists of a mixture of (1) Carbohydrates (2) Carbonates (3) Hydrocarbons (4) Carbides
Last Answer : Hydrocarbons
Description : Petroleum is a mixture of (1) elements (2)hydrocarbons (3) polymers (4) salts
Last Answer : hydrocarbons
Description : after atoms and molecules of gases and liquids are heated they move away from the heat . what takes their place?
Last Answer : ions
Description : What can liquids and gases do that solids can not?
Last Answer : Need answer
Description : What is a solution A. a solid dissolved in a gas B. a solute and a solvent C. a liquid dissolved in a gas D. an amalgam of solids, liquids, and gases?
Last Answer : B. A solute and a solvent
Description : Why liquids diffuse slowly as compared to gases?
Last Answer : Ans.In liquid the intermolecular forces (vander waal’s forces) are greater than in gas.
Description : Which statement is false? (a) Many alkanes are soluble in water. (b) All alkanes have a lower density than water. (c) At room temperature some alkanes are liquids, some solids, some gases. (d) All alkanes burn
Last Answer : Many alkanes are soluble in water
Description : Why do gases expand faster than liquids and solids?
Last Answer : Because the particles of gases are widely disturbed i.e. their particles are far apart from each other and they free to move. Other
Description : 04. All the gases are considered to have compressible flow and all the liquids are considered to have incompressible flow. A) Correct B) Incorrect
Last Answer : A
Description : For very great pressures, viscosity of moss gases and liquids (A) Remain same (B) Increases (C) Decreases (D) Shows erratic behaviour