In a reciprocating steam engine, which of the following forms a kinematic link?

A cylinder and piston
B piston and connecting rod
C crankshaft and flywheel
D flywheel and engine frame

Correct Answer: crankshaft and flywheel

Each part of a machine which moves relative to some other part, is known as a kinematic link. The piston and cylinder in a steam engine, form a pair and the motion of the piston is limited to a definite direction relative to the cylinder irrespective of the direction of motion of the crank.
Bissoy MCQ
#Machine Kinematics #Kinematic Link or Element

Related Questions

The primary unbalanced force due to inertia of reciprocating parts in a reciprocating engine is given by (where m = Mass of reciprocating parts, $$\omega $$ = Angular speed of crank, r = Radius of crank, $$\theta $$ = Angle of inclination of crank with the line of stroke and n = Ratio of the length of connecting rod to radius of crank)
A $${\text{m}}{\omega ^2}{\text{r}}\sin \theta $$
B $${\text{m}}{\omega ^2}{\text{r}}\cos \theta $$
C $${\text{m}}{\omega ^2}{\text{r}}\frac{{\sin 2\theta }}{{\text{n}}}$$
D $${\text{m}}{\omega ^2}{\text{r}}\frac{{\cos2\theta }}{{\text{n}}}$$
The secondary unbalanced force due to inertia of reciprocating parts in a reciprocating engine is given by (where m = Mass of reciprocating parts, $$\omega $$ = Angular speed of crank, r = Radius of crank, $$\theta $$ = Angle of inclination of crank with the line of stroke and n = Ratio of the length of connecting rod to radius of crank)
A $${\text{m}}{\omega ^2}{\text{r}}\sin \theta $$
B $${\text{m}}{\omega ^2}{\text{r}}\cos \theta $$
C $${\text{m}}{\omega ^2}{\text{r}}\frac{{\sin 2\theta }}{{\text{n}}}$$
D $${\text{m}}{\omega ^2}{\text{r}}\frac{{\cos2\theta }}{{\text{n}}}$$
In a mechanism, usually one link is fixed. If the fixed link is changed in a kinematic chain, then relative motion of other links
A will remain same
B will change
C will not occur
D none of the mentioned
In a reciprocating engine, usually __________ of the reciprocating masses are balanced.
A One-half
B Two-third
C Three-fourth
D Whole
In a drag link quick return mechanism, the shortest link is always fixed. The sum of the shortest and longest link is
A equal to sum of other two
B greater than sum of other two
C less than sum of other two
D none of the mentioned
In a steam engine, superheated steam from the boiler is fed into the steam chest at a pressure of
A 10 atmospheres
B 20 atmospheres
C 30 atmospheres
D 40 atmospheres
Which of the following statement is correct for steam turbines as compared to reciprocating steam engines?
A A steam turbine develops higher speeds
B The efficiency of steam turbine is higher
C The steam consumption is less
D All of these
Vacuum for reciprocating steam engines compared to steam turbines is
A More
B Equal
C Less
D Could be more or less depending on the size of plant
When the speed of the engine is controlled by means of a valve in a steam pipe, which regulates the pressure of steam entering the engine, then the governing is known as
A Throttle governing
B Cut-off governing
C By-pass governing
D None of these
A single acting steam engine produces __________ power than that of double acting steam engine.
A equal
B double
C half
D 4 times

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