Flywheel is an important part of a steam engine because it – (1) accelerates the speed of the engine (2) helps the engine in keeping the speed uniform (3) decreases the moment of inertia (4) gives strength to the engine

Flywheel is an important part of a steam engine because it – (1) accelerates the speed of the engine (2) helps the engine in keeping the speed uniform (3) decreases the moment of inertia (4) gives strength to the engine
by

1 Answer

Answer :

(2) helps the engine in keeping the speed uniform Explanation: A flywheel is a rotating mechanical device that is used to store rotational energy. Flywheels have a. significant moment of inertia and thus resist changes in rotational speed, enabling the engine to run at a constant, uniform motion. In the Industrial Revolution, James Watt contributed to the development of the flywheel in the steam engine.
by
selected

Related questions

Flywheel is an important part of a steam engine because it - (1) gives strength to the engine (2) accelerates the speed of the engine (3) helps the engine in keeping the speed uniform (4) decreases the moment of Inertia

Description : Flywheel is an important part of a steam engine because it - (1) gives strength to the engine (2) accelerates the speed of the engine (3) helps the engine in keeping the speed uniform (4) decreases the moment of Inertia

Last Answer : (3) helps the engine in keeping the speed uniform

Flywheel is an important part of a steam engine because it : (1) accelerates the speed of the engine (2) helps the engine in keeping the speed uniform (3) decreases the moment of inertia (4) gives strength to the engine

Description : Flywheel is an important part of a steam engine because it : (1) accelerates the speed of the engine (2) helps the engine in keeping the speed uniform (3) decreases the moment of inertia (4) gives strength to the engine

Last Answer : helps the engine in keeping the speed uniform

Flywheel is an important part of a steam engine because it – (1) accelerates the speed of the engine (2) helps the engine in keeping the speed uniform (3) decreases the moment of inertia (4) gives strength to the engine

Description : Flywheel is an important part of a steam engine because it – (1) accelerates the speed of the engine (2) helps the engine in keeping the speed uniform (3) decreases the moment of inertia (4) gives strength to the engine

Last Answer : (2) helps the engine in keeping the speed uniform Explanation: A flywheel is a rotating mechanical device that is used to store rotational energy. Flywheels have a. significant moment of ... the Industrial Revolution, James Watt contributed to the development of the flywheel in the steam engine.

Flywheel is an important part of a steam engine because it - (1) gives strength to the engine (2) accelerates the speed of the engine (3) helps the engine in keeping the speed uniform (4) decreases the moment of Inertia

Description : Flywheel is an important part of a steam engine because it - (1) gives strength to the engine (2) accelerates the speed of the engine (3) helps the engine in keeping the speed uniform (4) decreases the moment of Inertia

Last Answer : (3) helps the engine in keeping the speed uniform

Flywheel is an important part of a steam engine because

Description : Flywheel is an important part of a steam engine because

Last Answer : helps the engine in keeping speed uniform.

A flywheel of moment of inertia 9.8kgm 2 fluctuates by 30 rpm for a fluctuation in energy of 1936 joules. The means speed of flywheel is (in rpm) 1. 600 2. 900 3. 968 4. 2940

Description : A flywheel of moment of inertia 9.8kgm 2 fluctuates by 30 rpm for a fluctuation in energy of 1936 joules. The means speed of flywheel is (in rpm) 1. 600 2. 900 3. 968 4. 2940

Last Answer : 1. 600

A train travels between two stations 15 km apart in 18 minutes. If the train accelerates for a part of journey uniformly followed by uniform retardation, the maximum speed attained by the train during the journey will by a.125 km/hr b.107 dynes c.80 km/hr d.100 km/hr e.60 km/hr

Description : A train travels between two stations 15 km apart in 18 minutes. If the train accelerates for a part of journey uniformly followed by uniform retardation, the maximum speed attained by the train during the journey will by a.125 km/hr b.107 dynes c.80 km/hr d.100 km/hr e.60 km/hr

Last Answer : d. 100 km/hr

A train travels between two stations 15 km, apart in 18 minutes. If the train accelerates for a part of journey uniformly followed by uniform relardation, the maximum speed attained by the train, during, the journey, will be a.60 km/hr b.80 km/hr c.125 km/hr d.100 km/hr e.107 dynes

Description : A train travels between two stations 15 km, apart in 18 minutes. If the train accelerates for a part of journey uniformly followed by uniform relardation, the maximum speed attained by the train, during, the journey, will be a.60 km/hr b.80 km/hr c.125 km/hr d.100 km/hr e.107 dynes

Last Answer : d. 100 km/hr

Consideration of the creep is the most important in case of the (A) Blades of gas turbine (B) Piston of an I. C. engine (C) Flywheel of steam engine (D) Cycle chain

Description : Consideration of the creep is the most important in case of the (A) Blades of gas turbine (B) Piston of an I. C. engine (C) Flywheel of steam engine (D) Cycle chain

Last Answer : (A) Blades of gas turbine

Which of the following is used to control the speed variations of the engine caused by the fluctuations of the engine turning moment? 1. D-slide valve 2. Governor 3. Flywheel 4. Meyer’s expansion valve

Description : Which of the following is used to control the speed variations of the engine caused by the fluctuations of the engine turning moment? 1. D-slide valve 2. Governor 3. Flywheel 4. Meyer’s expansion valve

Last Answer : 3. Flywheel

_____ technology helps to stop a combustion engine when the vehicle pulls to a stop and restart it when driver accelerates. • Start stop technology • Passive braking technology • Regenerative braking technology • Internal cooling technology

Description : _____ technology helps to stop a combustion engine when the vehicle pulls to a stop and restart it when driver accelerates. • Start stop technology • Passive braking technology • Regenerative braking technology • Internal cooling technology

Last Answer : • Regenerative braking technology

Flywheel absorbs energy during those periods of crank rotation when 1. The twisting moment is greater than the resisting moment 2. The twisting moment is equal to the resisting moment 3. The twisting moment is less than resisting moment 4. The load on engine falls

Description : Flywheel absorbs energy during those periods of crank rotation when 1. The twisting moment is greater than the resisting moment 2. The twisting moment is equal to the resisting moment 3. The twisting moment is less than resisting moment 4. The load on engine falls

Last Answer : 1. The twisting moment is greater than the resisting moment

If the polar moment of inertia is increased to four times, then what will be the effect on free torsional vibrations of a single motor system? A. Increases 4 times B. Increases 2 times C. Decreases 4 times D. Decreases 2 times

Description : If the polar moment of inertia is increased to four times, then what will be the effect on free torsional vibrations of a single motor system? A. Increases 4 times B. Increases 2 times C. Decreases 4 times D. Decreases 2 times

Last Answer : B. Increases 2 times

If the mass moment of inertia is increased to four times, then what will be the effect on free torsional vibrations of a single motor system? a) Increases 4 times b) Increases 2 times c) Decreases 4 times d) Decreases 2 times

Description : If the mass moment of inertia is increased to four times, then what will be the effect on free torsional vibrations of a single motor system? a) Increases 4 times b) Increases 2 times c) Decreases 4 times d) Decreases 2 times

Last Answer : d) Decreases 2 times

If the polar moment of inertia is increased to four times, then what will be the effect on free torsional vibrations of a single motor system? a) Increases 4 times b) Increases 2 times c) Decreases 4 times d) Decreases 2 times

Description : If the polar moment of inertia is increased to four times, then what will be the effect on free torsional vibrations of a single motor system? a) Increases 4 times b) Increases 2 times c) Decreases 4 times d) Decreases 2 times

Last Answer : b) Increases 2 times

Soap helps in better cleaning of clothes because - (1) Soap acts like catalyst (2) It reduces the surface tension of solution (3) It gives strength to solution (4) It absorbs the dirt

Description : Soap helps in better cleaning of clothes because - (1) Soap acts like catalyst (2) It reduces the surface tension of solution (3) It gives strength to solution (4) It absorbs the dirt

Last Answer : (2) It reduces the surface tension of solution Explanation: Soaps are effective cleaners because they can dissolve and the oil and grease that holds dirt in place. They reduce the surface tension of the ... surfactant molecules help water to get a hold of grease, break it up, and wash it away.

Soap helps in better cleaning of clothes because (1) Soap acts like catalyst (2) It reduces the surface tension of solution (3) It gives strength to solution (4) It absorbs the dirt

Description : Soap helps in better cleaning of clothes because (1) Soap acts like catalyst (2) It reduces the surface tension of solution (3) It gives strength to solution (4) It absorbs the dirt

Last Answer : It reduces the surface tension of solution

A flywheel weighs 400 kg and has a radius of gyration of 30 cm about its axis of rotation. It is mounted on a shaft subjected to a moment of 40 kgm. If the flywheel starts from restits speed after 3 seconds wil be a.10.9 rad/sec b.19.0 rad/sec c.51.2 rad/sec d.3.33 rad/sec e.16.35 rad/sec

Description : A flywheel weighs 400 kg and has a radius of gyration of 30 cm about its axis of rotation. It is mounted on a shaft subjected to a moment of 40 kgm. If the flywheel starts from restits speed after 3 seconds wil be a.10.9 rad/sec b.19.0 rad/sec c.51.2 rad/sec d.3.33 rad/sec e.16.35 rad/sec

Last Answer : d. 3.33 rad/sec

Which of the following physical quantities changes or tends to change the state of rest or of uniform motion of a body in a straight line? (1) Momentum (2) Mass (3) Force (4) Inertia

Description : Which of the following physical quantities changes or tends to change the state of rest or of uniform motion of a body in a straight line? (1) Momentum (2) Mass (3) Force (4) Inertia

Last Answer : (3) Force Explanation: Force is an agent which changes or tends to change the state of rest or of uniform motion of a body.

The output of a diesel engine can be increased without increasing the engine speed or size in the following way A. feeding more fuel B. increasing the flywheel size C. heating intake air D. supercharging

Description : The output of a diesel engine can be increased without increasing the engine speed or size in the following way A. feeding more fuel B. increasing the flywheel size C. heating intake air D. supercharging

Last Answer : ANSWER : D

A flywheel is used 1. to limit the fluctuation of speed during each cycle 2. to control the mean speed of the engine 3. to maintain a constant speed 4. to come into action when the speed varies

Description : A flywheel is used 1. to limit the fluctuation of speed during each cycle 2. to control the mean speed of the engine 3. to maintain a constant speed 4. to come into action when the speed varies

Last Answer : 1. to limit the fluctuation of speed during each cycle

If the load on the engine is constant, the mean speed will be constant from the cycle, then (A) The governor will not operate but flywheel will be acting (B) The flywheel will be acting but governor will not operate (C) Both flywheel and governor will be acting (D) Both flywheel and governor will not be acting

Description : If the load on the engine is constant, the mean speed will be constant from the cycle, then (A) The governor will not operate but flywheel will be acting (B) The flywheel will be acting but ... (C) Both flywheel and governor will be acting (D) Both flywheel and governor will not be acting

Last Answer : (A) The governor will not operate but flywheel will be acting

A flywheel is used, (A) To limit the fluctuations of speed during each cycle (B) To control the mean speed of the engine (C) To maintain a constant speed (D) To come into action when the speed varies

Description : A flywheel is used, (A) To limit the fluctuations of speed during each cycle (B) To control the mean speed of the engine (C) To maintain a constant speed (D) To come into action when the speed varies

Last Answer : (A) To limit the fluctuations of speed during each cycle

If load on the engine is constant, the mean speed will be constant and ___ will not operate. a) Flywheel b) Governor c) Both flywheel and governor d) None of the mentioned

Description : If load on the engine is constant, the mean speed will be constant and ___ will not operate. a) Flywheel b) Governor c) Both flywheel and governor d) None of the mentioned

Last Answer : b) Governor

What is the function of the heart Pacemaker? A. It decreases the heart beat B. It regulates the heart beat C. It increases the heart beat D. It accelerates blood supply to the heart

Description : What is the function of the heart Pacemaker? A. It decreases the heart beat B. It regulates the heart beat C. It increases the heart beat D. It accelerates blood supply to the heart

Last Answer : ANSWER: B

Medical What is the function of the heart Pacemaker? A. It decreases the heart beat B. It regulates the heart beat C. It increases the heart beat D. It accelerates blood supply to the heart

Description : Medical What is the function of the heart Pacemaker? A. It decreases the heart beat B. It regulates the heart beat C. It increases the heart beat D. It accelerates blood supply to the heart

Last Answer : ANSWER: B

Out of the following pairs, which one does not have identical dimension? (1) Moment of inertia and moment of a force (2) Work and Torque (3) Angular momentum and Planck's constant (4) Impulse and Momentum

Description : Out of the following pairs, which one does not have identical dimension? (1) Moment of inertia and moment of a force (2) Work and Torque (3) Angular momentum and Planck's constant (4) Impulse and Momentum

Last Answer : (1) Moment of inertia and moment of a force

Which of the following have the same unit? (1) Work and power (2) Torque and moment of inertia (3) Work and torque (4) Torque and angular momentum

Description : Which of the following have the same unit? (1) Work and power (2) Torque and moment of inertia (3) Work and torque (4) Torque and angular momentum

Last Answer : (3) Work and torque Explanation: The SI unit of work is the Newton-metre or joule (J). A Newton meter is also the SI unit of torque (also called "moment" or "moment of force").

______ is the perpendicular distance between point of application of force and axis of rotation. (1) Moment arm (2) Moment of Inertia (3) Altitude (4) Base

Description : ______ is the perpendicular distance between point of application of force and axis of rotation. (1) Moment arm (2) Moment of Inertia (3) Altitude (4) Base

Last Answer : (1) Moment arm Explanation: The magnitude of the moment of force acting about a point or axis is directly proportional to the distance of the force from the point or axis.

Radian per second is unit of _______. (1) Momentum (2) Moment of Inertia (3) Frequency (4) Angle Velocity

Description : Radian per second is unit of _______. (1) Momentum (2) Moment of Inertia (3) Frequency (4) Angle Velocity

Last Answer : (4) Angle Velocity Explanation: The SI unit of angular velocity is radians per second.

The moment of inertia of a body does not depend upon its – (1) axis of rotation (2) angular velocity (3) form of mass (4) distribution of mass

Description : The moment of inertia of a body does not depend upon its – (1) axis of rotation (2) angular velocity (3) form of mass (4) distribution of mass

Last Answer : (2) angular velocity Explanation: Moment of inertia is the mass property of a rigid body that determines the torque needed for a desired angular acceleration about an axis of rotation. Moment of inertia ... of moments of inertia of the masses making up the whole object, under the same conditions.

The spokes used in the wheel of a bicycle increase its – (1) Moment of inertia (2) Velocity (3) Acceleration (4) Momentum

Description : The spokes used in the wheel of a bicycle increase its – (1) Moment of inertia (2) Velocity (3) Acceleration (4) Momentum

Last Answer : (1) Moment of inertia Explanation: A spoke is one of some number of rods radiating from the center of a wheel (the hub where the axle connects), connecting the hub with the round ... synthetic fibers, are also occasionally used. Metal spokes used in bicycles also increase the moment of inertia.

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

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.

In linear motion, the energy is given by 1⁄2mv2. Similarly, in rotational motion, the rotational energy is given by A. 1/2 × I × ω; where I: moment of inertia of the body, ω: angular velocity B. 1/2 × I² × ω; where I: moment of inertia of the body, ω: angular velocity C. 1/2 × I × ω²; where I: moment of inertia of the body, ω: angular velocity D. 1/2 × I² × ω²; where I: moment of inertia of the body, ω: angular velocity

Description : In linear motion, the energy is given by 1⁄2mv2. Similarly, in rotational motion, the rotational energy is given by A. 1/2 I ω; where I: moment of inertia of the body, ω: angular velocity B. 1/ ... angular velocity D. 1/2 I² ω²; where I: moment of inertia of the body, ω: angular velocity

Last Answer : 1/2 × I × ω²; where I: moment of inertia of the body, ω: angular velocity

Total angular momentum of a body is given by A. I × ω; where I: moment of inertia of the body, ω: angular velocity B. I² × ω; where I: moment of inertia of the body, ω: angular velocity C. I² × ω²; where I: moment of inertia of the body, ω: angular velocity D. I × ω²; where I: moment of inertia of the body, ω: angular velocity

Description : Total angular momentum of a body is given by A. I ω; where I: moment of inertia of the body, ω: angular velocity B. I² ω; where I: moment of inertia of the body, ω: angular velocity C. I² ... the body, ω: angular velocity D. I ω²; where I: moment of inertia of the body, ω: angular velocity

Last Answer : I × ω; where I: moment of inertia of the body, ω: angular velocity

You are sitting in a frictionless barber chair. The barber decides to have some fun with you, so he spins the chair. As you spin, you find that you can slow down by extending your arms and legs. You have: w) decreased your angular momentum x) increased your angular momentum y) increased your moment of inertia z) changed the direction of the momentum vector

Description : You are sitting in a frictionless barber chair. The barber decides to have some fun with you, so he spins the chair. As you spin, you find that you can slow down by extending your ... increased your angular momentum y) increased your moment of inertia z) changed the direction of the momentum vector

Last Answer : ANSWER: Y --INCREASED YOUR MOMENT OF INERTIA

In a collision, which of the following four quantities is always conserved? w) momentum x) kinetic energy y) torque z) moment of inertia

Description : In a collision, which of the following four quantities is always conserved? w) momentum x) kinetic energy y) torque z) moment of inertia

Last Answer : ANSWER: W -- MOMENTUM

An ice skater is rotating with her arms extended. When she pulls in her arms her rate of rotation increases. Which of the following statements dealing with the process is TRUE? w) Her moment of inertia is increased. x) Kinetic energy is conserved. y) The skater does work when pulling in her arms. z) Angular momentum is increased.

Description : An ice skater is rotating with her arms extended. When she pulls in her arms her rate of rotation increases. Which of the following statements dealing with the process is TRUE? w) Her moment of ... conserved. y) The skater does work when pulling in her arms. z) Angular momentum is increased.

Last Answer : ANSWER: Y -- THE SKATER DOES WORK WHEN PULLING IN HER ARMS 

Which of the following have the same unit ? (1) Work and power (2) Torque and moment of inertia (3) Work and torque (4) Torque and angular momentum

Description : Which of the following have the same unit ? (1) Work and power (2) Torque and moment of inertia (3) Work and torque (4) Torque and angular momentum 

Last Answer : Work and torque

The moment of inertia of a body does not depend upon its (1) axis of rotation (2) angular velocity (3) form of mass (4) distribution of mass

Description : The moment of inertia of a body does not depend upon its (1) axis of rotation (2) angular velocity (3) form of mass (4) distribution of mass

Last Answer : angular velocity

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

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

The spokes used in the wheel of a bicycle increase its (1) Moment of inertia (2) Velocity (3) Acceleration (4) Momentum

Description : The spokes used in the wheel of a bicycle increase its (1) Moment of inertia (2) Velocity (3) Acceleration (4) Momentum

Last Answer : Moment of inertia

A beam of uniform strength has a. same cross-section throughout the beam b. same bending stress at every section c. same bending moment at every section d. same shear stress at every section

Description : A beam of uniform strength has a. same cross-section throughout the beam b. same bending stress at every section c. same bending moment at every section d. same shear stress at every section

Last Answer : b. same bending stress at every section

A circular solid of uniform thickness 20 mm, radius 200 mm and mass 20 kg, is used as a flywheel. If it rotates at 600 rpm, the kinetic energy of the flywheel, in joules is 1. 395 2. 790 3. 1580 4. 3160

Description : A circular solid of uniform thickness 20 mm, radius 200 mm and mass 20 kg, is used as a flywheel. If it rotates at 600 rpm, the kinetic energy of the flywheel, in joules is 1. 395 2. 790 3. 1580 4. 3160

Last Answer : 2. 790

Newton's first law of motion gives the concept of – (1) Energy (2) Work (3) Momentum (4) Inertia

Description : Newton's first law of motion gives the concept of – (1) Energy (2) Work (3) Momentum (4) Inertia

Last Answer : (4) Inertia Explanation: Newton's laws of motion are three physical laws that form the basis for classical mechanics. They describe the relationship between the forces acting on a body and its motion due to ... of the object is constant. Newton's first law is often referred to as the law of inertia.

Newton’s first law of motion gives the concept of (1) energy (2) work (3) momentum (4) inertia

Description : Newton’s first law of motion gives the concept of (1) energy (2) work (3) momentum (4) inertia

Last Answer : inertia

The temperature of boiling water in a steam engine may be high because - (1) there are dissolved substances in water (2) there is low pressure inside the boiler (3) there is high pressure inside the boiler (4) the lire is at very high temperature

Description : The temperature of boiling water in a steam engine may be high because - (1) there are dissolved substances in water (2) there is low pressure inside the boiler (3) there is high pressure inside the boiler (4) the lire is at very high temperature

Last Answer : (3) there is high pressure inside the boiler Explanation: In the boiler of a steam engine, there is a firebox where coal is shoveled into. The coal is kept burning at a very high temperature, and ... reservoir; the steam is then controlled by a slide valve to move into a cylinder to push the piston.

The temperature of boiling water in a steam engine may be high because : (1) there are dissolved substances in water (2) there is low pressure inside the boiler (3) there is high pressure inside the boiler (4) the fire is at very high temperature

Description : The temperature of boiling water in a steam engine may be high because : (1) there are dissolved substances in water (2) there is low pressure inside the boiler (3) there is high pressure inside the boiler (4) the fire is at very high temperature

Last Answer :  there is high pressure inside the boiler

As the train starts moving, a man sitting inside leans backwards because of (a) Inertia of rest (b) Inertia of motion (c) Moment of inertia (d) Conservation of mass

Description : As the train starts moving, a man sitting inside leans backwards because of (a) Inertia of rest (b) Inertia of motion (c) Moment of inertia (d) Conservation of mass

Last Answer : Ans:(a)

For finding out the bending moment for the arm (spoke) of flywheel the arm is assumed as 1. a cantilever beam fixed at the rim and subjected to tangential force at the hub 2. a simply supported beam fixed at hub and rim and carrying uniformly distributed load 3. a cantilever hub fixed at the rim and subjected to tangential force at the rim 4. a fixed beam fixed at hub and rim and carrying uniformly distributed load

Description : For finding out the bending moment for the arm (spoke) of flywheel the arm is assumed as 1. a cantilever beam fixed at the rim and subjected to tangential force at the hub 2. a simply ... tangential force at the rim 4. a fixed beam fixed at hub and rim and carrying uniformly distributed load

Last Answer : 3. a cantilever hub fixed at the rim and subjected to tangential force at the rim