Description : Railway tracks are banked on curves so that : (1) the train may not fall down inwards. (2) the weight of the train may be reduced. (3) necessary centripetal force may be obtained from the ... normal reaction due to track. (4) no frictional force may be produced between the wheels and the track.
Last Answer : (3) necessary centripetal force may be obtained from the horizontal component of the normal reaction due to track. Explanation: A vehicle moving at a fast speed on a straight rail/ road has ... it experiences an additional force, termed as centripetal force, acting towards the centre of the circle.
Description : Railway tracks are banked on curves so that - (1) Necessary centrifugal force may be obtained from the horizontal component of the weight of the train (2) No frictional force may be produced between the ... the horizontal component of the weight of the train (4) The train may not fall down inwards
Last Answer : (3) Necessary centripetal force may be obtained from the horizontal component of the weight of the train
Description : The force which makes a vehicle to stop when break is applied is called – (1) gravitational force (2) vanderwalls force (3) frictional force (4) covalent force
Last Answer : (3) frictional force Explanation: A brake is a mechanical device that inhibits motion by absorbing energy from a moving system. It is used for slowing or stopping a moving vehicle, wheel, axle, or ... When the brakes are applied, work is done by the friction force between the brakes and the wheels.
Description : When the milk is churned vigorously the cream from it is separated out clue to – (1) Centripetal force (2) Gravitational force (3) Frictional force (4) Centrifugal force
Last Answer : (4) Centrifugal force Explanation: The separation of cream from milk is based on the fact that when liquids of different specific gravity revolve around the same centre at the same distance with the ... the lighter one. Milk consists of two liquids of different specific gravity: fat and milk serum.
Description : When milk is churned, the cream separates from it clue to: (1) Frictional force (2) Centrifugal force (3) Gravitation al force (4) Viscous forces
Last Answer : (2) Centrifugal force Explanation: The extraction of cream happens because of the work of centrifugal force which works outward. The separation of cream from milk is based on the fact that when liquids ... . Milk can be regarded as two liquids of different specific gravities, the serum and the fat.
Description : An Athlets runs before long jump to get advantage on – (1) Inertia of motion (2) Frictional force (3) Moment of a force (4) Principle of moments
Last Answer : (1) Inertia of motion Explanation: An athlete does so to build up forward momentum so that when he jumps he already has a forward motion that would be greater than that of a jump made from standing in ... in terms of inertia of motion which is the tendency of an object to resist a change in motion.
Description : Direction of momentum is direction of object's A. mass B. acceleration C. velocity D. frictional force
Last Answer : velocity
Description : In order to slip one surface over another, maximum frictional force has to be overcome, this maximum frictional force between the two surfaces is also known as A. kinetic frictional force B. maximal frictional force C. limiting frictional force D. resisting force
Last Answer : limiting frictional force
Description : A man exerts a northward force of 100 newtons on a 50 kilogram box which sits on a level floor. If the frictional force is 80 newtons, what is the magnitude of the northward acceleration of the box?
Last Answer : ANSWER: 0.4 METERS PER SECOND SQUARED
Description : Which of the following forces is nonconservative? w) gravitational force x) electrostatic force y) sliding frictional force z) restorative force of a spring
Last Answer : ANSWER: Y -- SLIDING FRICTIONAL FORCE
Description : The force which makes a vehicle to stop when break is applied is called (1) gravitational force (2) vanderwalls force (3) frictional force (4) covalant force
Last Answer : frictional force
Description : When the milk is churned vigorously the cream from it is separated out due to (3) Centripetal force (2) Gravitational force (3) Frictional force (4) Centrifugal force
Last Answer : Centrifugal force
Description : Railway tracks are banked on curves so that (1) Necessary centrifugal force may be obtained from the horizontal component of the weight of the train (2) No frictional force may be produced between the ... the horizontal component of the weight of the train (4) The train may not fall down inwards
Last Answer : Necessary centripetal force may be obtained from the horizontal component of the weight of the train
Description : When milk is churned, the cream separates from it due to: (1) Frictional force (2) Centrifugal force (3) Gravitational force (4) Viscous forces
Description : An athlete runs before long jump to get advantage on (1) Inertia of motion (2) Frictional force (3) Moment of a force (4) Principle of moments
Last Answer : Inertia of motion
Description : The angle of friction is a.The angle which frictional force makes with the normal b.The anle at which the force applied from external souce will cause movement c.The angle at which fictional ... the normal reaction and the resultant of normal reaction and the limiting friction e.None of the above
Last Answer : d. The angle between the normal reaction and the resultant of normal reaction and the limiting friction
Description : Kinetic friction is a.Maximum value of frictional force when a body is about to move b.Friction between two well lubricated bodies c.Friction force acting when the body is in motion d.Driction force which keeps a body in motion e.None of the above
Last Answer : c. Friction force acting when the body is in motion
Description : The maximum frictional force which comes into play when a body just begins to slide over the surface of another body is known as a.Kinetic friction b.Rolling friction c.Dynamic friction d.Limiting friction e.Sliding friction
Last Answer : d. Limiting friction
Description : When the speed of a rear-drive car is increasing on a horizontal road the direction of the frictional force on the tires is:
Last Answer : When the speed of a rear-drive car is increasing on a horizontal road the direction of the ... the front tires and forward for the rear tires
Description : Is the frictional force to slow an object in motion?
Last Answer : Kinetic
Description : If the engine of a motor car moving up with an angle of 45 slope with a speed of 63kmh stops working suddenly how car move before coming to rest if it weighs 19600 and frictional force is 2000?
Last Answer : Need answer
Description : With increase of temperature, the frictional force acting between two surfaces (a) Increase (b) Remain the same (c) Decreases (d) becomes zero
Last Answer : Ans:(b)
Description : Railway tracks are banked on curves so that (a) Necessary centrifugal force may be obtained from the horizontal component of the weight of the train (b) Frictional force can be avoided between the tracks ... of the weight of the train (d) The train may not fly off in the opposite direction
Last Answer : Ans:(c)
Description : When milk is churned, the cream from it is separated due to (a) Gravitational force (b) Centrifugal force (c) Frictional force (d) Heat
Description : Cream gets separated out of milk when it is churned. This is due to– (1) gravitational force (2) centripetal force (3) centrifugal force (4) frictional force
Last Answer : (3) centrifugal force Explanation: During the churning of buttermilk, many particles of curd undergo rotatory motion: Then the particles with less weight experience more centripetal force and hence those particles ... force and so they are forced to the walls of the container away from the centre.
Description : Frictional force acting between parallel layers of a liquid is called?
Last Answer : Viscosity
Description : Reduction in vibration amplitude after one complete cycle of single degree free vibration with dry friction damping is_____, if where F"= frictional force between mass and surface and k =stiffness of the system. a)4F/k a b) 2f/K C) 3F/k D)8F/k
Last Answer : a)4F/k
Description : Frictional force encountered after commencement of motion is called (A) Post friction (B) Limiting friction (C) Kinematic friction (D) Dynamic friction
Last Answer : (D) Dynamic friction
Description : The maximum frictional force which comes into play when a body just begins to slide over another surface is called (A) Limiting friction (B) Sliding friction (C) Rolling friction (D) Kinematic friction
Last Answer : (A) Limiting friction
Description : In order that flow takes place between two points in a pipeline, the differential pressure between these points must be more than (A) Frictional force (B) Viscosity (C) Surface friction (D) All of the above
Last Answer : Answer: Option D
Description : Unemployment that is caused by a mismatch between the composition of the labor force (in terms of skills, occupation, industries, or geographic location) and the make-up of the ... . Real wage unemployment B. Deficient-demand unemployment C. Frictional unemployment D. Structural Unemployment
Last Answer : D. Structural Unemployment
Description : Unemployment that is caused by a mismatch between the composition of the labor force (in terms of skills, occupation, industries, or geographic location) and the make-up of the demand for ... unemployment ; (b) Deficient-demand unemployment ; (c) Frictional unemployment ; (d) Structural Unemployment
Last Answer : (d) Structural Unemployment
Description : Cream gets separated out of milk when it is churned. This is due to (1) gravitational force (2) centripetal force (3) centrifugal force (4) frictional force
Last Answer : centrifugal force
Description : Frictional force encountered after commencement of motion is called?
Last Answer : Frictional force encountered after commencement of motion is called dynamic friction.
Description : A machine's output is 4000 joules and its frictional losses are 1000 joules. Which of the following is its efficiency? Is it: w) 25% x) 30% y) 75% z) 80%
Last Answer : ANSWER: Z -- 80%
Description : A 10,000-watt motor operates an elevator weighing 5000 newtons. Assuming no frictional losses, how high is the elevator raised in 10 seconds. Is it raised: w) 2 meters x) 20 meters y) 50 meters z) 100 meters
Last Answer : ANSWER: X -- 20 METERS
Description : If the available workers are unaware of the jobs being offered and the employers are not aware of the available workers, such type on unemployment is called: A. Frictional unemployment B. Structural unemployment C. Disguised unemployment D. Demand pull unemployment.
Last Answer : A. Frictional unemployment
Description : Match List-I (Type of Unemployment) with List-II (Characteristics) and select the correct answer using the codes given below: L ist-I L ist -I I (Type of (Char acter ist ics) Unem ... contribution by the additional labour is nil E. Cyclical V. Job opportunities during certain months in the year
Last Answer : (1) A-V, B-III, C-IV, D-II, E-I
Description : In an agricultural family all the family members are working the farmland of the family. Due to addition of two more person in the family they are also working in the farmland of the ... (a) Cyclical unemployment ; (b) Disguised unemployment ; (c) Frictional unemployment (d) Seasonal unemployment
Last Answer : (b) Disguised unemployment ;
Description : The type of unemployment that includes those persons who are unemployed for an intervening period of change over in job for better job is known as (a) Seasonal unemployment ; (b) Voluntary unemployment ; (c)Frictional unemployment (d) Technical unemployment
Last Answer : (c)Frictional unemployment
Description : If the available workers are unaware of the jobs being offered and the employers are not aware of the available workers, such type on unemployment is called (a) Frictional unemployment ; (b) Structural unemployment; (c) Disguised unemployment ; (d) Demand pull unemployment.
Last Answer : (a) Frictional unemployment ;
Description : If the distance to electric train is given by Fr = a + bv + cv2 In this equation constant c is likely to cover a.air resistance b.track resistance c.frictional resistance d.flange resistance e.107 dynes
Last Answer : a. air resistance
Description : The principle of conservation of energy cannot be applied in case of a.Flow of water in a pipe b.A particle moving in gravitational field c.Frictional movement of a particle over a surface d.Frictionless movement of a principle over a surface e.Simple pendulum
Last Answer : c. Frictional movement of a particle over a surface
Description : Frictional unemployment is temporary in nature.
Last Answer : State with reasons whether you agree or disagree with the following statements: Frictional unemployment is temporary in nature.
Description : Frictional Unemployment and Structural Unemployment.
Last Answer : Distinguish Between: Frictional Unemployment and Structural Unemployment.
Description : 1. Concept of unemployment – Involuntary unemployment, Voluntary unemployment, Underemployment, Frictional unemployment.
Last Answer : Find the odd word out: 1. Concept of unemployment - Involuntary unemployment, Voluntary ... dignity, Waste of human resources, Helplessness.
Description : 1. Disguised Unemployment : Rural Unemployment : : Frictional Unemployment : ___________
Last Answer : Complete the correlation: 1. Disguised Unemployment : Rural Unemployment : : Frictional Unemployment ... wage employment : : TRYSEM : ___________
Description : What does the frictional book journey to the west describe?
Last Answer : To answer a question we need a what, who, where, when, why, orhow. We need a what for us to answer this question.
Description : How does frictional forces occur?
Last Answer : Feel Free to Answer