Description : Liquid pressure at any point inside the liquid, depends upon _______of the liquid and the height of liquid column above that point. a) area b)density c)weight d)none
Last Answer : b)density
Description : Boyle's law is a relationship between – (1) Pressure and volume (2) Volume and temperature (3) Volume and density (4) Pressure and temperature
Last Answer : (1) Pressure and volume Explanation: Boyle's law states that the absolute pressure and volume of a given mass of confined gas are inversely proportional, if the temperature remains unchanged within a ... law was named after chemist and physicist Robert Boyle, who published the original law in 1662.
Description : Boyle’s law is a relationship between (1) Pressure and volume (2) Volume and temperature (3) Volume and density (4) Pressure and temperature
Last Answer : Pressure and volume
Description : If we want to calculate the pressure of a liquid at the bottom of a vessel, the quantity which is not required to determine it, is – (1) Height of the liquid column (2) Surface area of the bottom of the vessel (3) Density of the liquid (4) Acceleration due to gravity at the bottom of the vessel
Last Answer : (2) Surface area of the bottom of the vessel Explanation: The pressure exerted by a static fluid depends only upon the depth of the fluid, the density of the fluid, and the acceleration of gravity. Static fluid pressure does not depend on the shape, total mass, or surface area of the liquid.
Last Answer : (2) Surface area of the bottom of the vessel Explanation: The pressure exerted by a static fluid depends only upon the depth of the fluid, the density of the fluid, and the acceleration of gravity.
Description : The density of the liquid when heated (1) decreases (2) increases (3) does not change (4) may increase of decrease depending on pressure
Last Answer : (1) decreases Explanation: The mass density of a material varies with temperature and pressure. Increasing the temperature of a substance (with some exceptions) decreases its density by increasing the volume of ... bottom to top of the fluid due to the decrease of the density of the heated fluid.
Description : Liquid A and liquid B exert same amount of pressure on each other, but the density of A is twice the density of B. The height of liquid B is 10 cm, then the height of liquid A would be A. 5 cm B. 10 cm C. 20 cm D. 40 cm
Last Answer : 5 cm
Description : If we want to calculate the pressure of a liquid at the bottom of a vessel, the quantity which is not required to determine it, is (1) Height of the liquid column (2) Surface area of the bottom of the vessel (3) Density of the liquid (4) Acceleration due to gravity at the bottom of the vessel
Last Answer : Surface area of the bottom of the vessel
Last Answer : decreases
Description : When a liquid moves through a pipe having a varying diameter, the pressure against the inside walls of the pipe will be: w) the same throughout x) lowest where the diameter is smallest y) lowest where the diameter is largest z) lowest where the velocity of flow is lowest
Last Answer : ANSWER: X -- LOWEST WHERE THE DIAMETER IS SMALLEST
Description : Hydroscope is an instrument that shows changes in: (1) Sound under water (2) Atmospheric humidity (3) Density of liquid (4) None of these
Last Answer : (4) None of these Explanation: Hydroscope is an optical device for enabling a person to see an object at a considerable distance below the surface of water by means of a series of mirrors ... usually converted to sound pressure level (SPL), a logarithmic measure of the mean square acoustic pressure.
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 amount of heat required to change a boiling liquid to a gas at the same temperature depends on one of the following properties of the liquid. Does it depend on the liquid's: w) heat of fusion x) heat of vaporization y) temperature z) density
Last Answer : ANSWER: X -- HEAT OF VAPORIZATION
Description : A liquid disturbed by stirring comes to rest due to (1) density (2) surface tension (3) viscosity (4) centripetal force
Last Answer : viscosity
Description : Why must liquid refrigerant be present for the pressure - temperature relationship to apply?
Last Answer : Need answer
Description : A centrifugal filtration unit operating at a rotational speed of w has inner surface of the liquid (density ρL) located at a radial distance R from the axis of rotation. The thickness of the liquid film is δ and no cake is formed. The ... . ρL (C) ½w 2 . δρL (2R + δ) (D) ½w 2 . R . ρL(R + 2δ)
Last Answer : (C) ½w 2 . δρL (2R + δ)
Description : Centre of pressure in an immersed body is __________ the centre of gravity. (A) Above (B) Below (C) At (D) Either above or below; depends on the liquid density
Last Answer : (B) Below
Description : Pressure exerted by a liquid depends upon its (A) Surface tension (B) Density (C) Viscosity
Last Answer : Option B
Description : The weight per unit volume of a liquid at a standard temperature and pressure is called (A) Specific weight (B) Mass density (C) Specific gravity (D) None of these
Last Answer : Answer: Option A
Description : The mass per unit volume of a liquid at a standard temperature and pressure is called (A) Specific weight (B) Mass density (C) Specific gravity (D) None of these
Last Answer : Answer: Option B
Description : In an immersed body, centre of pressure is (A) At the centre of gravity (B) Above the centre of gravity (C) Below be centre of gravity (D) Could be above or below e.g. depending on density of body and liquid
Last Answer : Answer: Option C
Description : Venturimeter is used to measure: (1) rate of flow of liquids (2) liquid pressure (3) surface tension (4) liquid density
Last Answer : rate of flow of liquids
Description : How does the flow of air occur in natural draught cooling towers? a) Natural pressure head density between cold outside air and humid inside air b) Variation in pressure of both cold outside air and ... given air vents and vacuum ports d) Because of difference in the volume of both the of airs
Last Answer : Natural pressure head density between cold outside air and humid inside air
Description : What increase as steam pressure increase inside a boiler • Force • Density • Rate of steam conversion • Viscosity
Last Answer : • Density
Description : The difference of pressure between the inside and outside of a liquid drop is (A) p = T × r (B) p = T/r (C) p = T/2r (D) p = 2T/r
Last Answer : Answer: Option D
Description : The pressure exerted by a stationary liquid kept in a container at any point inside the liquid is known as ________ pressure. a)atmospheric b)hydrostatic c) air d)none
Last Answer : b)hydrostatic
Description : Where can I find an online reference explaining temperature, volume and pressure relationship?
Last Answer : answer:Try from here? http://en.wikipedia.org/wiki/Ideal_gas_law Your remarks on the volume if continued pressure in a piston, I don’t understand. In the case of a piston, the volume is a direct consequence of the piston movement. Pressure and temperature then change as a consequence.
Description : What is the relationship between pressure and area ?
Last Answer : A force is a force applied perpendicular to a single area per object. If the force F applied perpendicular to the A field is F , then pressure P = F / A i.e. pressure = force / area or , force = pressure x area.
Description : The velocity of sound in moist air is more than in dry air because the moist air has (1) less density than city air (2) less pressure than dry air (3) more pressure than dry air (4) more density than dry air
Last Answer : (1) less density than city air Explanation: The density of dry air is more than that of moist air (when moisture is removed from air, its density. increases). The speed of sound in a medium is inversely ... root of its density. Therefore, the speed of sound in moist air is more than that in dry air.
Description : The density of a gas is maximum at – (1) Low temperature, low pressure (2) Low temperature, high pressure (3) High temperature, low pressure (4) High temperature, high pressure
Last Answer : (2) Low temperature, high pressure Explanation: The density of gases depends upon the temperature. The higher the temperature, the more the molecules are spread out and the lower the density. The result is that warm gases rise and cool gases sink.
Description : Equal volumes of different gases at any definite temperature and pressure have- (1) Equal weights (2) equal masses (3) equal density (4) equal no. of molecules
Last Answer : (4) equal no. of molecules
Description : Clouds float in the atmosphere because of their – (1) low pressure (2) low density (3) low viscosity (4) low temperature
Last Answer : (2) low density Explanation: The key to why clouds float is that the density of the same volume of cloud material is less than the density of the same amount of dry air. Just as oil floats on water ... it is less dense, clouds float on air because the moist air in clouds is less dense than dry air.
Description : Which one among the following doesn't have any effect on velocity of sound? (1) Pressure (2) Temperature (3) Humidity (4) Density
Last Answer : (3) Humidity Explanation: The speed of sound varies depending on the temperature, pressure, and density of the medium through which the sound waves travel. In most of the cases, it is density ... (or other material). The density of air is affected by atmospheric pressure, temperature, and altitude.
Description : The boiling point of water depends upon the – (1) atmospheric pressure (2) volume (3) density (4) mass
Last Answer : (1) atmospheric pressure Explanation: The boiling point corresponds of water to the ternperature at which its vapour pressure equals the surrounding environmental pressure. So it is dependent on ... pressure decreases. As this pressure decreases, the boiling point of the water also decreases.
Description : Velocity of sound in air does not depend on – (1) Density of air (2) Temperature of air (3) Pressure of air (4) Humidity of air
Last Answer : (3) Pressure of air Explanation: Assuming air to be an ideal gas, the speed of sound depends on temperature only. As air temperature increases, so does the speed of sound and vice versa. ... air pressure because the air pressure and air density are proportional to each other at the same temperature.
Description : The clouds float in the atmosphere because of their low: (1) temperature (2) velocity (3) pressure (4) density
Last Answer : (4) density Explanation: Clouds generally form, survive and grow in air that is moving upward. Rising air expands as the pressure on it decreases, and that expansion into thinner, high-altitude air causes cooling.
Description : The different colours of different stars are due to the variation of – (1) temperature (2) pressure (3) density (4) radiation from them
Last Answer : (1) temperature Explanation: Shortly after blackbody radiation was understood, it was noticed that the spectra of stars look extremely similar to blackbody radiation curves of various temperatures, ... and that the colour variation of stars is a direct consequence of their surface temperatures.
Description : Rise of oil a wick is due to – (1) density of the oil (2) viscosity of the oil (3) surface tension of the oil (4) pressure of the oil
Last Answer : (3) surface tension of the oil Explanation: The phenomenon of rise or fall of liquid in a capillary tube is called capillarity. Oil rises through a wick due to capillarity. The narrow ... tiny capillaries, through which oil rises. Capillary action is the result of adhesion and surface tension.
Description : Pressure in fluid depends upon A. depth below the surface B. density of fluid C. the value of g D. all of above
Last Answer : all of above
Description : Height of atmosphere, if atmospheric density is 1.29 kg m-3 and atmospheric pressure is 101 kPa, is A. 7839.4 m B. 7829.4 m C. 7849.4 m D. 7859.4 m
Last Answer : 7829.4 m
Description : Pressure of gas depends on the A. density of gas B. mean square speed of gas molecules C. both A and B D. temperature
Last Answer : both A and B
Description : The boiling point of water depends upon the (1) atmospheric pressure (2) volume (3) density (4) mass
Last Answer : atmospheric pressure
Description : Clouds float in the atmosphere because of their (1) low pressure (2) low density (3) low viscosity (4) low temperature
Last Answer : low density
Description : Which one among the following doesn't have any effect on velocity of sound ? (1) Pressure (2) Temperature (3) Humidity (4) Density
Last Answer : Humidity
Description : Velocity of sound in air does not depend on (1) Density of air (2) Temperature of air (3) Pressure of air (4) Humidity of air
Last Answer : Pressure of air
Description : Rise of oil a wick is due to (1) density of the oil (2) viscosity of the oil (3) surface tension of the oil (4) pressure of the oil
Last Answer : surface tension of the oil
Description : The density of a gas is maximum at (1) Low temperature, low pressure (2) Low temperature, high pressure (3) High temperature, low pressure (4) High temperature, high pressure
Last Answer : Low temperature, high pressure
Description : The different colours of different stars are due to the variation of (1) temperature (2) pressure (3) density (4) radiation from them
Last Answer : temperature
Description : The velocity of sound in moist air is more than in dry air because the moist air has (1) less density than dry air. (2) less pressure than dry air. (3) more pressure than dry air. (4) more density than dry air.
Last Answer : less density than dry air.