Description : What is the difference between Bernoulli Principle and Archimedes principle?
Last Answer : Feel Free to Answer
Description : How the concepts of Bernoulli‟s principle differ from Archimedes principle?
Last Answer : Bernoulli‟s principle states that the increase in speed of the fluid element occurs with a decrease in pressure of the fluid. Archimedes principle states that the upward force exerted on an object immersed in a fluid is equal to the weight of the fluid displaced by the object.
Description : Who invented the barometer? w) Torricelli x) Avogadro y) Rutherford z) Becquerel
Last Answer : ANSWER: W -- TORRICELLI
Description : Pick out the wrong statement. (A) The controlling resistance in case of heating of air by condensing steam is in the air film (B) The log mean temperature difference (LMTD) for ... a pure fluid at a given pressure from liquid to vapor or vice-versa occurs at saturation temperature
Last Answer : (C) In case of a 1 - 2 shell and tube heat exchanger, the LMTD correction factor value increases sharply, when a temperature cross occurs
Description : A sprayer works on the principle expounded by (a) Newton (b) Archimedes (c) Boyle (d) Pascal
Last Answer : Ans:(d)
Description : If your room has a natural tendency to become messy and disordered, it is an excellent example of: w) enthalpy x) entropy y) the Bernoulli effect z) the Haase effect
Last Answer : ANSWER: X -- ENTROPY
Description : What is the SI unit for pressure? w) Torr x) pounds per square inch y) Pascal z) Kelvin
Last Answer : ANSWER: Y -- PASCAL
Description : What is the SI unit of pressure? w) Pascal x) Torr y) Dyne z) Kelvin
Last Answer : ANSWER: W -- PASCAL
Description : The SI unit of pressure is the: w) Torr x) dyne per centimeter squared y) atmosphere z) pascal
Last Answer : ANSWER: Z -- PASCAL
Description : In an elastic collision, the RELATIVE velocities of separation of the two bodies after impact compared with the relative velocity of approach before impact is: w) always greater x) always smaller y) always the same z) first greater, then smaller
Last Answer : ANSWER: Y -- ALWAYS THE SAME
Description : The resultant upward pressure of a fluid on a floating body is equal to the weight of the fluid displaced by the body. This definition is according to (A) Buoyancy (B) Equilibrium of a floating body (C) Archimedes' principle (D) Bernoulli's theorem
Last Answer : Answer: Option C
Description : Of the following, which has units of "Pascal". w) force x) volume y) pressure z) viscosity
Last Answer : ANSWER: Y -- PRESSURE
Description : Which of the following Greek philosophers proposed the first atomic theory around 400 B.C.? Was it w) Plato x) Archimedes y) Aristotle z) Democritus
Last Answer : ANSWER: D -- DEMOCRITUS
Description : Which of the following statements are true? A. P/V Ratio can never be used to measure break-even point B. Higher the P/V ratio less will be the profit and vice versa C. Concept of P/V ratio is also used to determine profit at a given volume of sales D. All of the above
Last Answer : C. Concept of P/V ratio is also used to determine profit at a given volume of sales
Description : Two commodities X and Y goods can be inferred as close substitute of each other if - (a) Increase in price of one leads to increase in demand of other and vice versa (b) Increase in price of one ... fall in demand of other one (d) Increase in price of one leads to increase in demand of other one
Last Answer : (a) Increase in price of one leads to increase in demand of other and vice versa
Description : Which law/principle of solid mechanics is similar/equivalent to Newton's law of viscosity in fluid mechanics? (A) Archimedes principle (B) Newton's second law of motion (C) Hooke's law (D) Newton's third law of motion
Last Answer : (C) Hooke's law
Description : Archimedes principle states that a. when a body is inversed in a fluid, the fluid exerts a downward force on the body whose magnitude is equal to the weight of the displaced fluid b. ... fluid exerts a downward force on the body whose magnitude is lower than the weight of the displaced fluid.
Last Answer : when a body is inversed in a fluid, the fluid exerts a upward force on the body whose magnitude is equal to the weight of the displaced fluid.
Description : Compared to Chlorine, Bromine has: w) smaller atomic size x) higher density y) lower boiling point z) greater number of outer electrons
Last Answer : ANSWER: X -- HIGHER DENSITY
Description : "Upthrust = Weight of the liquid displaced" is known as A. Bernoulli's Principle B. Archimedes' Principle C. Pascal's Law D. Coulomb's law
Last Answer : Archimedes' Principle
Description : Which of the answers listed below best completes the statement: The rate at which any part of a wave travels from one place to another determines the wave's: w) propagation velocity x) period y) amplitude z) frequency
Last Answer : ANSWER: W -- PROPAGATION VELOCITY
Description : In quadrantal bearing system, back bearing of a line may be obtained from its forward bearing, by (A) Adding 180°, if the given bearing is less than 180° (B) Subtracting 180°, if the given bearing, is more ... cardinal points, i.e. substituting N for S and E for W and vice-versa (D) None of these
Last Answer : (C) Changing the cardinal points, i.e. substituting N for S and E for W and vice-versa
Description : If two different gases have the same volume, temperature, and pressure and behave like ideal gases, they will also be identical in which one of the following ways? w) average molecular velocity x) total mass y) total molecular kinetic energy z) average momentum per molecule
Last Answer : ANSWER: Y -- TOTAL MOLECULAR KINETIC ENERGY
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 : The temperature of a gas is held constant while its volume is reduced. The pressure the gas exerts on the walls of its container increases because its molecules: w) strike the container walls more ... walls with higher speeds y) strike the container walls with greater force z) all of the above
Last Answer : ANSWER: W -- STRIKE THE CONTAINER WALLS MORE OFTEN
Description : A small hole in a sheet of aluminum foil is used to diffract yellow light both under water and in a vacuum. Which is true? w) light diffracts less in the water because its wavelength is ... because its wavelength is larger. z) light diffracts more in the water because its wavelength is smaller.
Last Answer : ANSWER: X -- LIGHT DIFFRACTS LESS IN THE WATER BECAUSE ITS WAVELENGTH IS SMALLER
Description : An electron and a proton are moving at the same speed in circular paths in the same uniform magnetic field. The radius of the path of the proton is one of the following. Is this radius: w) the same ... of the electron y) a little larger than that of the electron z) smaller than that of the electron
Last Answer : ANSWER: X -- ABOUT 2000 TIMES LARGER THAN THAT OF THE ELECTRON
Description : Two hockey pucks, of unequal mass and connected by a spring of negligible mass, rest on a horizontal frictionless surface. The spring is released, and the pucks move apart. The center of mass of ... the direction of the greater mass y) remain stationary z) move in the direction of the smaller mass
Last Answer : ANSWER: Y -- REMAIN STATIONARY
Description : Ten coulombs of charge are placed on a solid copper sphere. Once the charge has come to rest, the ELECTRIC POTENTIAL inside the sphere is found to be: w) zero x) uniform inside the sphere and ... the sphere y) smaller than the electric potential outside the sphere z) varying as one over r squared
Last Answer : ANSWER: X -- UNIFORM INSIDE THE SPHERE AND EQUAL TO THE ELECTRIC POTENTIAL ON THE SURFACE OF THE SPHERE
Description : Ten coulombs of positive charge are placed on an irregularly-shaped, solid piece of copper. Once the charge has stopped moving, the electric field inside the copper is: w) zero x) changes as one ... squared y) becomes smaller as you approach the center z) becomes larger as you approach the center
Last Answer : ANSWER: W -- ZERO
Description : When the image formed by a convex mirror is compared to its object, the image is usually: w) erect and smaller x) inverted and imaginary y) real and inverted z) real and erect
Last Answer : ANSWER: W -- ERECT AND SMALLER
Description : A thin double-concave lens produces images which are: w) larger than the object x) smaller than the object y) the same size as the object z) one cannot tell from this information
Last Answer : ANSWER: X -- SMALLER THAN THE OBJECT
Description : Five coulombs of charge are placed on a thin-walled conducting shell. Once the charge has come to rest, the electric potential inside the hollow conducting shell is found to be: w) zero x) uniform ... sphere y) smaller than the electric potential outside the sphere z) varying as one over r squared.
Last Answer : ANSWER: X -- UNIFORM INSIDE THE SPHERE AND EQUAL TO THE ELECTRIC OTENT
Description : When a fast charged particle traverses a dielectric medium at a velocity exceeding the velocity of light in that medium, radiation is emitted. This radiation is known as: w) point radiation x) Cerenkov radiation y) Synchrotron radiation z) Bremsstrahlung
Last Answer : ANSWER: X -- CERENKOV RADIATION
Description : Bernoulli's principle shows that, at points in a moving fluid where the potential energy change is very small A. the pressure is low where the velocity is low and similarly, the pressure is ... of the moving fluid D. pressure remain independent of the speed of the stationary fluid
Last Answer : the pressure is low where the velocity is high and conversely, the pressure is high where the velocity is low
Description : Which of the following statement is correct ? (A) Modem is a software (B) Modem helps in stabilizing the voltage (C) Modem is the operating system (D) Modem converts the analog signal into digital signal and vice-versa
Last Answer : (D) Modem converts the analog signal into digital signal and vice-versa
Description : Rocket works on the principle of – (1) Newton's Third Law (2) Newton's First Law (3) Newton's Second Law (4) Archimedes Principle
Last Answer : (1) Newton's Third Law Explanation: The modern science of spaceflight and rockets rest on Newton's Three Laws of Motion, a set of ideas and equations developed in the 1600s. In particular, ... engines point rearward. The action of the engine thrust produces a reaction on the rocket, accelerating it.
Description : That an Iron ship floats in water but an Iron ball sinks, is an example of - (1) Newton's second law (2) Pascal's law (3) Archimedes Principle (4) Dalton's law
Last Answer : (3) Archimedes Principle Explanation: The floating of an iron ship in water is an example of Archimedes principle. Archimedes' principle states that an object floats on water if the weight of the water ... . Since the average density of the ship as a whole is less than the density of water.
Description : Hydraulic brakes in automobile work on – (1) Poiseuille's principle (2) Pascal's principle (3) Archimedes' principle (4) Bernoulli's principle
Last Answer : (2) Pascal's principle Explanation:The hydraulic brake is an arrangement of braking mechanism which uses brake fluid, typically containing glycol ethers or diethylene glycol, to transfer pres-sure from ... it travels equally in all directions so that uniform braking action is applied on all wheels.
Description : Purity of a metal can be determined with the help of – (1) Pascal's law (2) Boyle's law (3) Archimedes principle (4) Conservation of mass principle
Last Answer : (3) Archimedes principle Explanation: Purity of a metal can be determined with the help of Archimedes Principle which makes use of the densities and buoyancy of metals. Finding the density of a metal ... help to determine its purity. It is most commonly used in the checking the purity of gold.
Description : The hydraulic brake used in automobiles is a direct application of - (1) Archimedes principle (2) Torricellean law (3) Bernoulli's Theorem (4) Pascal's law
Last Answer : (4) Pascal's law Explanation: Pascal's law basically states that any pressure applied to a fluid inside a closed system will transmit that pressure equally in all directions throughout the fluid.
Description : What principle/law explains the working of the hydraulic brakes in automobiles? (1) Bernoulli's law (2) Posieulli's principle (3) Pascal's law (4) Archimedes' principle
Last Answer : (3) Pascal's law Explanation: Hydraulic brakes work on the principle of Pascal's law which states that "pressure at a point in a fluid is equal in all directions in space". According to this law ... the vehicle, to the actual brake mechanism, which is usually at or near the wheel of the vehicle.
Description : The hydraulic brakes used in automobiles is a direct application of : (1) Archimedes' principle (2) Toricellian law (3) Bernoulli's theorem (4) Pascal's law
Last Answer : (4) Pascal's law Explanation: Pascal's principle guarantees that the pressure is transmitted equally to all parts of the enclosed fluid system. This gives straightline braking unless there is a fluid leak or ... to the actual brake mechanism, which is usually at or near the wheel of the vehicle.
Description : Hydraulic brakes in automobile work on (1) Poiseuille’s principle (2) Pascal’s principle (3) Archimedes’ principle (4) Bernoulli’s principle
Last Answer : Pascal’s principle
Description : Purity of a metal can be determined with the help of (1) Pascal’s law (2) Boyle’s law (3) Archimedes principle (4) Conservation of mass principle
Last Answer : Archimedes principle
Description : Rocket works on the principle of (1) Newton's Third Law (2) Newton's First Law (3) Newton's Second Law (4) Archimedes Principle
Last Answer : Newton's Third Law
Description : The hydraulic brakes used in automobiles is a direct application of : (1) Archimedes’ principle (2) Toricellian law (3) Bernoulli’s theorem (4) Pascal’s law
Last Answer : Pascal’s law
Description : What principle/law explains the working of the hydraulic brakes in automobiles ? (1) Bernoulli’s law (2) Posieulle’s principle (3) Pascal’s law (4) Archimedes’ principle
Description : DNS can obtain the of host if its domain name is known and vice versa. A) Station address B) IP address C) Port address D) Checksum
Last Answer : B) IP address
Description : DNS can obtain the ................. of host if its domain name is known and vice versa. A) Station address B) IP address C) Port address D) Checksum
Description : DNS can obtain the ..................of host if its domain name is known and vice versa. A) Station address B) IP address C) Port address D) Checksum