The resultant unbalanced force due to the two cylinders, along the line of stroke, is known as ______

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Tractive force is produced due to unbalanced forces perpendicular to the line of stroke of action.

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Due to partial balancing there is unbalanced force only along the line of stroke.

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The effect of an unbalanced primary force along the line of stroke is to produce ________

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Hammer blow is along the line of stroke of the unbalanced force.

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The primary unbalanced force is maximum when the angle of inclination of the crank with the line of stroke is

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Tractive force attains a maxima or minima when the crank angle is 90 degrees.

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At which of the following angles in degrees does the tractive force attains a minimum value?

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At which of the following angles in degrees does the tractive force attains a maximum value?

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The tractive force is maximum or minimum when the angle of inclination of the crank to the line of stroke ( θ ) is equal to

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If c be the fraction of the reciprocating parts of mass m to be balanced per cyclinder of a steam locomotive with crank radius r, angular speed ω, distance between centre lines of two cylinders a, then the magnitude of the maximum swaying couple is given by

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In order to facilitate the starting of locomotive in any position, the cranks of a locomotive, with two cylinders, are placed at ______________ to each other.

asked Sep 23, 2022 in Machine Dynamics by Grayson (34.3k points)

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In a multicylinder inline engine, each imaginary secondary crank with a mass attached to the crankpin is inclined to the line of stroke at which angle?

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The swaying couple is maximum or minimum when the angle of inclination of the crank to the line of stroke ( θ ) is equal to

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A V-twin engine has the cylinder axes at 90 degrees and the connecting rods operate a common crank. The reciprocating mass per cylinder is 23 kg and the crank radius is 7.5 cm. The length of the connecting rod is 0.3 m. If the engine is rotating at the speed is 500 r.p.m. What is the value of maximum resultant secondary force in Newtons?

asked Sep 23, 2022 in Machine Dynamics by Grayson (34.3k points)

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A V-twin engine has the cylinder axes at 90 degrees and the connecting rods operate a common crank. The reciprocating mass per cylinder is 11.5 kg and the crank radius is 7.5 cm. The length of the connecting rod is 0.3 m. If the engine is rotating at the speed is 500 r.p.m. What is the value of maximum resultant secondary force in Newtons?

asked Sep 23, 2022 in Machine Dynamics by Grayson (34.3k points)

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A V-twin engine has the cylinder axes at 90 degrees and the connecting rods operate a common crank. The reciprocating mass per cylinder is 34.5 kg and the crank radius is 7.5 cm. The length of the connecting rod is 0.3 m. If the engine is rotating at the speed is 500 r.p.m. What is the value of maximum resultant secondary force in kN?

asked Sep 23, 2022 in Machine Dynamics by Grayson (34.3k points)

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In case of partial balancing of locomotives, the maximum magnitude of the unbalanced force perpendicular to the line of stroke is called hammer blow and this has to be limited by proper choice of the balancing mass and its radial position.

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What is the total no. of cylinders in a locomotive having crank at right angles?

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When the connecting rod is too long, secondary forces arise due to reciprocating masses.

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The swaying couple is due to the

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For a two cylinder locomotives, the crank are placed at right angles to each other.

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Piston effort acts along the line of stroke.

asked Sep 22, 2022 in Machine Dynamics by Grayson (34.3k points)

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