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 tracks and the wheels of the train (3)Necessary centripetal force may be obtained from the horizontal component of the weight of the train (4) The train may not fall down inwards

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 tracks and the wheels of the train (3)Necessary centripetal force may be obtained from the horizontal component of the weight of the train (4) The train may not fall down inwards
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(3) Necessary centripetal force may be obtained from the horizontal component of the weight of the train
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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 tracks and the wheels of the train (3) Necessary centripetal force may be obtained from the horizontal component of the weight of the train (4) The train may not fall down inwards

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

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 horizontal component of the normal reaction due to track. (4) no frictional force may be produced between the wheels and the track.

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.

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 and wheels (c) Necessary centripetal force may be obtained from the horizontal component of the weight of the train (d) The train may not fly off in the opposite direction

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)

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

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.

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

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

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

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.

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

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

A man standing close to the platform at a railway station experiences a pulling force towards a fast moving train because of (1) gravitational force between train and man. (2) illusion of the man (3) the centripetal force (4) pressure difference due to fast moving air in between

Description : A man standing close to the platform at a railway station experiences a pulling force towards a fast moving train because of (1) gravitational force between train and man. (2) illusion of the man (3) the centripetal force (4) pressure difference due to fast moving air in between

Last Answer : (4) pressure difference due to fast moving air in between Explanation: When a fast-moving train passes a man standing on the platform at rest, the air between train and person also moves with ... higher pressure, and being behind the man standing close will tend to push him toward the train.

A man standing close to the platform at a railway station experiences a pulling force towards a fast moving train because of __________ . (1) gravitational force between train and man (2) illusion of the man (3) the centripetal force (4) pressure difference due to fast moving air in between

Description : A man standing close to the platform at a railway station experiences a pulling force towards a fast moving train because of __________ . (1) gravitational force between train and man (2) illusion of the man (3) the centripetal force (4) pressure difference due to fast moving air in between

Last Answer : pressure difference due to fast moving air in between

Along horizontal curves, if centrifugal force exceeds lateral friction, vehicles may (A) Skid (B) Slip (C) Not be affected (D) None of these

Description : Along horizontal curves, if centrifugal force exceeds lateral friction, vehicles may (A) Skid (B) Slip (C) Not be affected (D) None of these

Last Answer : Answer: Option A

An aircraft can perform aerobatic manoeuvres in a vertical loop because of- (1) gravity (2) centripetal force (3) weight (4) centrifugal force

Description : An aircraft can perform aerobatic manoeuvres in a vertical loop because of- (1) gravity (2) centripetal force (3) weight (4) centrifugal force

Last Answer : (1) gravity Explanation: It happens because of gravity. A key feature of super maneuvering aircrafts is a high thrust-to-weight ratio; that is, the comparison of the force produced by the engines to the aircraft's weight, which is the force of gravity on the aircraft.

At the fairground, the force that balances out our weight isA. centripetal forceB. centrifugal forceC. frictionD. gravitational force

Description : At the fairground, the force that balances out our weight isA. centripetal force B. centrifugal force C. friction D. gravitational force

Last Answer : friction

An aircraft can perform aerobatic manoeuvres in a vertical loop because of (1) gravity (2) centripetal force (3) weight (4) centrifugal force

Description : An aircraft can perform aerobatic manoeuvres in a vertical loop because of (1) gravity (2) centripetal force (3) weight (4) centrifugal force

Last Answer : gravity

What type of force acts on a car moving around a curve? (1) Centrifugal force (2) Cohesive force (3) Centripetal force (4) Gravitational force

Description : What type of force acts on a car moving around a curve? (1) Centrifugal force (2) Cohesive force (3) Centripetal force (4) Gravitational force

Last Answer : (3) Centripetal force Explanation: Any object moving in a circle (or along a circular path) experiences a centripetal force. It is this physical force that pushes or pulls the object towards ... acting upon the turned wheels of the car provides centripetal force required for circular motion.

Fat can be separated from milk in a cream separator because of _______. (1) cohesive force (2) gravitational force (3) centripetal force (4) centrifugal force

Description : Fat can be separated from milk in a cream separator because of _______. (1) cohesive force (2) gravitational force (3) centripetal force (4) centrifugal force

Last Answer : (4) centrifugal force Explanation: The centrifugal separator was invented in 1897. By the turn of the century it had altered the dairy industry by making centralized dairy processing possible for the first time.

The rotational effect of a force on a body about an axis of rotation is described in terms of the (1) Centre of gravity (2) Centripetal force (3) Centrifugal force (4) Moment of force

Description : The rotational effect of a force on a body about an axis of rotation is described in terms of the (1) Centre of gravity (2) Centripetal force (3) Centrifugal force (4) Moment of force

Last Answer : (4) Moment of force Explanation: The rotational effect of a force on a body about an axis of rotation is described in terms of the Moment of force.

The rotational effect of a force on a body about an axis of rotation is described in terms of the (1) Centre of gravity (2) Centripetal force (3) Centrifugal force (4) Moment of force

Description : The rotational effect of a force on a body about an axis of rotation is described in terms of the (1) Centre of gravity (2) Centripetal force (3) Centrifugal force (4) Moment of force

Last Answer : (4) Moment of force Explanation: The rotational effect of a force on a body about an axis of rotation is described in terms of the Moment of force.

In order to keep a body moving in a circle, there exists a force on it that is directed toward the center of the circle. This force is known aA. Centrifugal force B. Centripetal force C. Gravitational Force D. magnetic forces

Description :  In order to keep a body moving in a circle, there exists a force on it that is directed toward the center of the circle. This force is known asA. Centrifugal force B. Centripetal force C. Gravitational Force D. magnetic force

Last Answer : Centripetal force

What type of force acts on a car moving around a curve? (1) Centrifugal force (2) Cohesive force (3) Centripetal force (4) Gravitational force

Description : What type of force acts on a car moving around a curve? (1) Centrifugal force (2) Cohesive force (3) Centripetal force (4) Gravitational force

Last Answer : Centripetal force

Fat can be separated from milk in a cream separator because of: (1) Cohesive force (2) Gravitational force (3) Centripetal force (4) Centrifugal force

Description : Fat can be separated from milk in a cream separator because of: (1) Cohesive force (2) Gravitational force (3) Centripetal force (4) Centrifugal force

Last Answer : Centrifugal force

A small gap is left at the joints of rails in a railway track to – (1) avoid the tracks being distorted due to seasonal temperature variation (2) avoid the heating of tracks to high temperature (3) control the speed of train (4) keep the rails equidistant

Description : A small gap is left at the joints of rails in a railway track to – (1) avoid the tracks being distorted due to seasonal temperature variation (2) avoid the heating of tracks to high temperature (3) control the speed of train (4) keep the rails equidistant

Last Answer : (1) avoid the tracks being distorted due to seasonal temperature variation Explanation: A small gap is left at the joints of rails in a railway track to provide space for the expansion of rail pieces when the temperature rises during summer.

A small gap is left at the joints of rails in a railway track to (1) avoid the tracks being distorted due to seasonal temperature variation (2) avoid the heating of tracks to high temperature (3) control the speed of train (4) keep the rails equidistant

Description : A small gap is left at the joints of rails in a railway track to (1) avoid the tracks being distorted due to seasonal temperature variation (2) avoid the heating of tracks to high temperature (3) control the speed of train (4) keep the rails equidistant

Last Answer : avoid the tracks being distorted due to seasonal temperature variation

A satellite stay in orbit because the following two factors are balanced A. Satellite weight and speed B. Gravitational force and centrifugal force C. Centripetal force and speed D. Satellite weight and the pull of the moon and sun

Description : A satellite stay in orbit because the following two factors are balanced A. Satellite weight and speed B. Gravitational force and centrifugal force C. Centripetal force and speed D. Satellite weight and the pull of the moon and sun

Last Answer : B. Gravitational force and centrifugal force

When milk is churned, the cream separates from it clue to: (1) Frictional force (2) Centrifugal force (3) Gravitation al force (4) Viscous forces

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.

When milk is churned, the cream separates from it due to: (1) Frictional force (2) Centrifugal force (3) Gravitational force (4) Viscous forces

Description : When milk is churned, the cream separates from it due to: (1) Frictional force (2) Centrifugal force (3) Gravitational force (4) Viscous forces 

Last Answer : Centrifugal force

When the speed of a train moving on a circular track is doubled, the centripetal force acting on the train does one of the following. Does the force: w) remain the same x) increase by a factor of 2 y) increase by a factor of 4 z) increase by a factor of 8

Description : When the speed of a train moving on a circular track is doubled, the centripetal force acting on the train does one of the following. Does the force: w) remain the same x) increase by a factor of 2 y) increase by a factor of 4 z) increase by a factor of 8

Last Answer : ANSWER: Y -- INCREASE BY A FACTOR OF 4

In a railway track, two rails are joined end to end with a gap in between them because – (1) steel can be saved (2) accidents due to contraction in winter can be avoided (3) air-gaps are necessary for bearing the weight of running train (4) accidents due to expansion in summer can be avoided.

Description : In a railway track, two rails are joined end to end with a gap in between them because – (1) steel can be saved (2) accidents due to contraction in winter can be avoided (3) air-gaps are necessary for bearing the weight of running train (4) accidents due to expansion in summer can be avoided.

Last Answer : (4) accidents due to expansion in summer can be avoided. Explanation: The volume of materials changes depending on current temperature. Usually heat makes them expand, and cold leads them to contract. ... on the tracks. The same applies in many other fields of engineering, i.e. bridge building.

In a railway track, two rails are joined end to end with a gap in between thembecause (1) steel can be saved (2) accidents due to contraction in winter can be avoided (3) air-gaps are necessary for bearing the weight of running train (4) accidents due to expansion in summer can be avoided.

Description : In a railway track, two rails are joined end to end with a gap in between thembecause (1) steel can be saved (2) accidents due to contraction in winter can be avoided (3) air-gaps are necessary for bearing the weight of running train (4) accidents due to expansion in summer can be avoided.

Last Answer :  accidents due to expansion in summer can be avoided.

Design of horizontal curves on highways, is based on (A) Design speed of vehicles (B) Permissible friction on the road surface (C) Permissible centrifugal ratio (D) All the above

Description : Design of horizontal curves on highways, is based on (A) Design speed of vehicles (B) Permissible friction on the road surface (C) Permissible centrifugal ratio (D) All the above

Last Answer : Answer: Option D

Roads are bent inwards on curves. Why?

Description : Roads are bent inwards on curves. Why?

Last Answer : Ans: The roads are bent inwards on the curves and at the turns because the bents avoid falling outside and prevent the accidents. OR When an object turns in a circle it is influenced by a centrifugal ... in a way that these bent inward at the turns to avoid falling outside and to prevent accidents.

Roads are bent inwards on curves.

Description : Roads are bent inwards on curves.

Last Answer : 1- The centrifugal force experienced by the vehicle is lowered by the raised end, so the vehicle doesn’t skit or goes off from the road. 2- The centripetal force is supplemented by the gravitaional forces from below.

Often an unbalance of forces is produced in rotary or reciprocating machinery due to the ______ * 1 point (A) Centripetal forces (B) Centrifugal forces (C) Friction forces (D) Inertia forces

Description : Often an unbalance of forces is produced in rotary or reciprocating machinery due to the ______ * 1 point (A) Centripetal forces (B) Centrifugal forces (C) Friction forces (D) Inertia forces

Last Answer : (D) Inertia forces

A satellite orbits around the earth due to a.Celestial force b.Gravitational force c.Centrifugal force d.Centripetal force e.All of the above

Description : A satellite orbits around the earth due to a.Celestial force b.Gravitational force c.Centrifugal force d.Centripetal force e.All of the above

Last Answer : c. Centrifugal force

Define centripetal force and centrifugal force

Description : Define centripetal force and centrifugal force

Last Answer : Centripetal force - It is defined as the force acting along the radius towards the center of the circular path, which keeps the particle in uniform circular motion.  OR  Centripetal force ... experiences force which is along the radius and away from the center is called Centrifugal force.

According to Coulomb's wedge theory, the active earth pressure slides the wedge (A) Down and outwards on a slip surface (B) Up and inwards on a slip surface (C) Horizontal upward and parallel to base (D) Horizontal inward and parallel to base

Description : According to Coulomb's wedge theory, the active earth pressure slides the wedge (A) Down and outwards on a slip surface (B) Up and inwards on a slip surface (C) Horizontal upward and parallel to base (D) Horizontal inward and parallel to base

Last Answer : Answer: Option A

An artificial satellite stays in the orbit around the Earth because (a) The Earth’s gravity does not act on the satellite due to the great distance between them (b) The Earth’s attraction produces the necessary centripetal acceleration (c) The Earth’s attraction is balanced by the attraction of other planets (d) There is an engine in the satellite that constantly applies an upward force to balance its weight

Description : An artificial satellite stays in the orbit around the Earth because (a) The Earth's gravity does not act on the satellite due to the great distance between them (b) The Earth's attraction ... (d) There is an engine in the satellite that constantly applies an upward force to balance its weight

Last Answer : Ans:(b)

Damp clothes are dried in spin dryers by the action of – (1) centripetal forces (2) centrifugal forces (3) central forces (4) non central forces

Description : Damp clothes are dried in spin dryers by the action of – (1) centripetal forces (2) centrifugal forces (3) central forces (4) non central forces

Last Answer : (2) centrifugal forces Explanation: The spin dryer is probably the most familiar centrifuge. The spin dryer of a washing machine removes excess water from the clothing by rotating at a high speed. ... pulled to the outside of the spinning portion of the washing machine and away from the clothes.

Damp clothes are dried in spin dryers by the action of (1) centripetal forces (2) centrifugal forces (3) central forces (4) non central forces

Description : Damp clothes are dried in spin dryers by the action of (1) centripetal forces (2) centrifugal forces (3) central forces (4) non central forces

Last Answer : centrifugal forces

When milk is churned, the cream from it is separated due to (a) Gravitational force (b) Centrifugal force (c) Frictional force (d) Heat

Description : When milk is churned, the cream from it is separated due to (a) Gravitational force (b) Centrifugal force (c) Frictional force (d) Heat

Last Answer : Ans:(b)

In a railway track, two rails are joined end to end with a gap tin between them because? A. Steel can be saved B. Accidents due to contraction in winter can be avoided C. Air gaps are necessary for bearing the weight of running train D. Accidents due to expansion in summer can be avoided (Answer) E. All of these

Description : In a railway track, two rails are joined end to end with a gap tin between them because? A. Steel can be saved B. Accidents due to contraction in winter can be avoided C. Air gaps are necessary ... of running train D. Accidents due to expansion in summer can be avoided (Answer) E. All of these

Last Answer : D. Accidents due to expansion in summer can be avoided (Answer)

Our weight, as measured by the spring weighing machine is equivalent of A. The total gravitational force that Earth exerts on us B. The total centripetal force required to keep us moving on Earth's axis C. The total gravitational force that Earth exerts on us + The total centripetal force required to keep us moving on Earth's axis D. The total gravitational force that Earth exerts on us - The total centripetal force required to keep us moving on Earth's axis

Description : Our weight, as measured by the spring weighing machine is equivalent of A. The total gravitational force that Earth exerts on us B. The total centripetal force required to keep us moving on Earth's ... Earth exerts on us - The total centripetal force required to keep us moving on Earth's axis

Last Answer : The total gravitational force that Earth exerts on us - The total centripetal force required to keep us moving on Earth's axis

Why do train sets fall of the tracks?

Description : Why do train sets fall of the tracks?

Last Answer : When an electric train set falls off the tracks, it is usually because the manufacturer did not build the pieces accordingly. It can also be because the track assembler didn't put the track tight enough ... the electric train has too much power and builds up too much momentum to stay on the railing.

When the speed of a rear-drive car is increasing on a horizontal road the direction of the frictional force on the tires is:

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

Walking home one day, you take a short cut along the train tracks. The tracks cross a narrow bridge over a deep gorge. At the point you are 3/8 of the way across the bridge, you hear the train whistle somewhere behind you. You charge across the bridge, and jump off the track as the train is about to run you down. As it happens, if you had gone the other way, you would have reached safety just before being run over as well. If you can run ten miles per hour, how fast is the train moving? -Riddles

Description : Walking home one day, you take a short cut along the train tracks. The tracks cross a narrow bridge over a deep gorge. At the point you are 3/8 of the way across the bridge, you hear the train whistle ... run over as well. If you can run ten miles per hour, how fast is the train moving? -Riddles

Last Answer : The train is moving at 40 miles per hour. Imagine that a friend is walking with you. When the train whistle blows, you head away from the train, he heads toward it. When he reaches safety, you ... the bridge in the time you cross the remaining 1/4, the train must be moving four times your speed.

Pick up the incorrect statement from the following: (A) Highways are always constructed in straight line (B) Highways may be provided horizontal curves (C) Highways may be provided vertical curves (D) Highways may be provided both horizontal and vertical curves

Description : Pick up the incorrect statement from the following: (A) Highways are always constructed in straight line (B) Highways may be provided horizontal curves (C) Highways may be provided vertical curves (D) Highways may be provided both horizontal and vertical curves

Last Answer : Answer: Option A

tractor is a vehicle that runs on continuous tracks instead of wheels. In agriculture they are used for land clearing and land leveling works. a. Row crop b. Walking d. None of the above

Description : tractor is a vehicle that runs on continuous tracks instead of wheels. In agriculture they are used for land clearing and land leveling works. a. Row crop b. Walking d. None of the above

Last Answer : <!-- [if !supportLists] -->a.                <!-- [endif] -->Ans- c. crawler

is a self-propelled power unit having wheels for tracks for operating agriculture implements and machines including trailers. A) Car B) Tractor C) Motorcycle D) Truck

Description : is a self-propelled power unit having wheels for tracks for operating agriculture implements and machines including trailers. A) Car B) Tractor C) Motorcycle D) Truck

Last Answer : Truck

Horizontal component of a bouncing ball is A. affected by gravityB. unaffected by gravityC. affected by weightD. affected by contact force

Description : Horizontal component of a bouncing ball is A. affected by gravity B. unaffected by gravity C. affected by weight D. affected by contact force

Last Answer : unaffected by gravity

Good design of the casing of a centrifugal pump aims at minimising the (A) Cavitation (B) Frictional losses (C) Kinetic energy loss (D) Static head

Description : Good design of the casing of a centrifugal pump aims at minimising the (A) Cavitation (B) Frictional losses (C) Kinetic energy loss (D) Static head

Last Answer : Option C

What is centripetal force?

Description : What is centripetal force?

Last Answer : When an object is spun in a circle, it is constantly accelerating, even if the speed is unchanging. This is because accleration is a change in velocity and velocity is speed and direction. A spun object ... an object on a string in a circle, the tension force of the string is the centripetal force.