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 : 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 : 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 : Pick out the wrong statement. (A) In a static mass of liquid, the pressure at a point is the same for all liquids (B) Pressure decreases exponentially with elevation in an isothermal atmosphere (C) ... s law, the pressure at a point in a static or uniformly moving fluid is equal in all directions
Last Answer : (A) In a static mass of liquid, the pressure at a point is the same for all liquids
Description : Working principle of dead weight pressure gauge tester is based on (A) Pascal's law (B) Dalton's law of partial pressure (C) Newton's law of viscosity (D) Avogadro's hypothesis
Last Answer : Answer: Option A
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 : "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 : 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 : The spring balance works on the principle of - (1) Boyle's Law (2) Hooke's Law (3) Bernoulli's principle (4) Pascal's Law
Last Answer : (2) Hooke's Law Explanation: A spring scale or spring balance or Newton meter is a type of weighing scale. It consists of spring fixed at one end with a hook to attach an object at the ... force needed to extend a spring is proportional to the distance that spring is extended from its rest position.
Description : The spring balance works on the principle of __________ . (1) Boyle’s Law (2) Hooke’s Law (3) Bernoulli’s principle (4) Pascal’s Law
Last Answer : Hooke’s Law
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 : 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 : Hydraulic machines work under the principle of – (1) Newton’s law (2) Joule law (3) Pascal’s law (4) Floatation law
Last Answer : (3) Pascal’s law Explanation: Hydraulic machines work under the principal of Pascal’s law which states that the pressure in a static hydraulic fluid in a closed system is same everywhere.
Description : 'Hydraulic brakes' work on the principle of – (1) Pascal's law (2) Thomson's law (3) Newton's law (4) Bernoulli's theorem
Last Answer : (1) Pascal's law Explanation: Pascal's law states that when there is an increase in pressure at any point in a confined fluid, there is an equal increase at every other point in the container ... a pressure exerted on a piston produces an equal increase in pressure on another piston in the system.
Description : Hydraulic machines work under the Principle of : (1) Newton’s Law (2) Joules Law (3) Pascal’s Law (4) Floatation Law
Last Answer : Pascal’s Law
Description : ‘Hydraulic brakes’ work on the principle of (1) Pascal’s law (2) Thomson’s law (3) Newton’s law (4) Bernoulli’s theorem
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 : 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 : Propulsion of rocket follows from the (A) Newton's second law of motion (B) Newton's third law of motion (C) Law of projectiles (D) Archimedes principle
Last Answer : Option B
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 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 : If any external pressure is applied to a confined fluid, the pressure will be increased at every point in the fluid by the amount of the external pressure is known as _________. a. Torricelli’s law b. Barometric law c. Newton’s Second law d. Pascal’s law
Description : What states that for a confined fluid, the pressure at a point has the same magnitude in all directions? A. Avogadro’s Law B. Amagat Law C. Pascal’s Law D. Bernoulli’s Theorem
Description : Operation of McLeod gauge used for low pressure measurement is based on the principle of (A) Gas law (B) Boyle's law (C) Charles law
Last Answer : Answer: Option B
Description : The acceleration of a particular body is directly proportional to the resultant force acting on it & inversely proportional to its mass. a. Pascal's Law b. Joule's Law c. Newton's Law d. None of the above
Last Answer : Newton's Law
Description : A moving fluid mass may be brought to a static equilibrium position, by applying an imaginary inertia force of the same magnitude as that of the accelerating force but in the opposite direction. This statement is called (A) Pascal's law (B) (C) D-Alembert's principle (D) None of these
Description : When a body is immersed wholly or partially in a liquid, it is lifted up by a force equal to the weight of liquid displaced by the body. This statement is called (A) Pascal's law (B) (C) Principle of floatation (D) Bernoulli's theorem
Description : A balloon lifting in air follows the following principle (A) Law of gravitation (B) Archimedes principle (C) Principle of buoyancy (D) All of the above
Last Answer : Answer: Option D
Description : Hydraulic __________ works on the principle of Pascal's law of transmission of fluid pressure. (A) Press (B) Turbine (C) Pump (D) Coupling
Last Answer : (A) Press
Description : For a perfect gas, according to Boyle’s law (where p = Absolute pressure, v = Volume, and T = Absolute temperature) A. p v = constant, if T is kept constant B. v/T = constant, if p is kept constant C. p/T = constant, if v is kept constant D. T/p = constant, if v is kept constant
Last Answer : Answer: A
Description : According to which law, all perfect gases change in volume by l/273th of their original volume at 0°C for every 1°C change in temperature when pressure remains constant (a) Joule’s law (b) Boyle’s law (c) Regnault’s law (d) Gay-Lussac law (e) Charles’ law.
Last Answer : Answer : e
Description : Sprayer functions on – (1) Bernouli’s principle (2) Archeinecle's principle (3) Pascal's law (4) Floatation principle
Last Answer : (1) Bernouli's principle Explanation: Bernoulli's principle states that as the speed of a moving fluid (liquid or gas) increases, the pressure within the liquid decreases. In the case of a sprayer, when ... of the atmospheric air causes the liquid to rise up to the metal tube and come out as spray.
Description : Hydraulic brakes function on the principle of (A) Law of conservation of momentum (B) Law of conservation of energy (C) Pascal’s law (D) None of the above
Last Answer : (C) Pascal’s law
Description : Sprayer functions on (1) Bernouli’s principle (2) Archemede’s principle (3) Pascal’s law (4) Floatation principle
Last Answer : Bernouli’s principle
Description : The speed at which a liquid escapes from a vessel through an orifice is given by _________. a. Archimedes Principle b. Evangelista’s Law c. Torricelli’s Theorem d. Bernoulli’s Equation
Last Answer : Torricelli’s Theorem
Description : Pick out the wrong statement. (A) A fluid mass is free from shearing forces, when it is made to rotate with a uniform velocit (B) Newton's law of viscosity is not applicable to the ... types of bearings (D) Rise of water in capillary tubes reduces with the increasing diameter of capillary tubes
Last Answer : (B) Newton's law of viscosity is not applicable to the turbulent flow of fluid with linear velocity distribution
Description : A number of forces acting at a point will be in equilibrium if (A) Their total sum is zero (B) Two resolved parts in two directions at right angles are equal (C) Sum of resolved parts in any two perpendicular directions are both zero (D) All of them are inclined equally
Last Answer : (C) Sum of resolved parts in any two perpendicular directions are both zero
Description : Ball pen functions on the principle of : (1) Viscosity (2) Boyle's Law (3) Gravitational force (4) Surface tension
Last Answer : (4) Surface tension Explanation: The ballpoint pen is one of the most simple and yet ubiquitous devices whose function depends on surface tension. With a pen held upright, gravity and surface tension act in concert to get ink onto the ball.
Description : Ball pen functions on the principle of : (1) Viscosity (2) Boyle’s Law (3) Gravitational force (4) Surface tension
Last Answer : Surface tension
Description : The sound power level of a jet plane flying at a height of 1 km is 160 dB. What is the maximum sound pressure level on the ground directly below the plane assuming that the aircraft radiates sound equally in all directions? A. 59.1 dB B. 69.1 dB C. 79.1 dB D. 89.1 dB
Last Answer : D. 89.1 dB
Description : The statement, "In regions where fluid velocity is smaller, the pressure is higher, and vice versa", is known as the principle of: w) Pascal x) Bernoulli y) Torricelli z) Archimedes
Last Answer : ANSWER: X -- BERNOULLI
Description : According to Newton's law of viscosity, the shear stress on a layer of a fluid is __________ to the rate of shear strain. (A) Equal to (B) Directly proportional (C) Inversely proportional (D) None of these
Description : Communiction circuits that transmit data in both directions but not at the same time are operating in a. a simplex mode b. a half duplex mode c. a full duplex mode d. an asynchronous mode
Last Answer : a half duplex mode
Description : A transmission mode that can transmit data in both the directions but transmits in only one direction at a time. a) simplex b) half duplex c) full duplex d) semi-duplex
Last Answer : b) half duplex
Description : The parasitic array can be rotated to receive or transmit in different directions. What is the name given to such an antenna?
Last Answer : Rotary array.
Description : What antenna radiates equally in all directions? A. Vertical antenna B. isotropic antenna C. Horizontal antenna D. Dipole antenna
Last Answer : B. isotropic antenna
Description : Which of the following antennas receives signals equally well from all directions in a horizontal plane? A. Hetz antenna B. Vertical Marconi antenna C. Yagi antenna D. Helical antenna
Last Answer : B. Vertical Marconi antenna