The swaying couple is due to the

A primary unbalanced force
B secondary unbalanced force
C two cylinders of locomotive
D partial balancing

Correct Answer: primary unbalanced force

The unbalanced forces along the line of stroke for the two cylinders constitute a couple. This couple has swaying effect about a vertical axis, and tends to sway the engine alternately in clockwise and anticlockwise directions. Hence the couple is known as swaying couple.
Bissoy MCQ
#Machine Dynamics #Primary and Secondary Unbalanced Forces of Reciprocating Masses

Related Questions

The swaying couple is maximum or minimum when the angle of inclination of the crank to the line of stroke (θ) is equal to
A 90° and 180°
B 45° and 225°
C 180° and 270°
D 270° and 360°
The maximum or minimum value of the swaying couple is
A $$ \pm {\text{cm}}{\omega ^2}{\text{r}}$$
B $$ \pm {\text{a}}\left( {1 - {\text{c}}} \right){\text{m}}{\omega ^2}{\text{r}}$$
C $$ \pm \frac{{\text{a}}}{{\sqrt 2 }}\left( {1 - {\text{c}}} \right){\text{m}}{\omega ^2}{\text{r}}$$
D $$ \pm 2{\text{a}}\left( {1 - {\text{c}}} \right){\text{m}}{\omega ^2}{\text{r}}$$
The product of either force of couple with the arm of the couple is called
A Resultant couple
B Moment of the forces
C Resulting couple
D Moment of the couple
The value of shear stress which is induced in the shaft due to the applied couple varies
A From maximum at the center to zero at the circumference
B From zero at the center to maximum at the circumference
C From maximum at the center to minimum at the circumference
D From minimum at the center to maximum at the circumference
A person travels I2 km due north, then 15 km due east after that I5km due west and then 18 km due south. How far B she from the starting point?
A 6km
B 10km
C 33km
D 60km
there have been short periods in which the share market has __ drastically , although the market has experienced strong __ in the last couple of years .
A extension / stabilized
B fallen / growth
C expansion / stagnated
D augmentation / steadied
After a couple of misunderstandings with John, I have decided " to give him a wide berth. "
A to give possession
B to keep a reasonable distance
C to make a pact
D get involved
The couple was upset by the construction of the new skyscraper across the street, as the building would ----- their once ---- view. For each question, select the word(s)/phrase(s)/that appropriately Fill(s) in the gaps(s)
A obviate - scenic
B ameliorate - charming
C enhance - ghastly
D obstruct - picturesque
Fill in the gap : The couple was so ----with the interior designing of the apartment that they overlooked the structural ----.
A carried away ---deficiencies
B exasperated ---amenities
C blown away --amenities
D erried ahead---ambiguities
A farmer had 20 sheep. All but 7 died. A couple of sheep from the living ones was sold by the farmer. How many were left in the farm?
A 11
B 13
C 7
D 5

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