Related Questions

In a compound steam engine, the first stage of expansion is carried out in a high pressure cylinder whereas the last expansion is completed in low pressure cylinder. The diameter of high pressure cylinder is _________ the low pressure cylinder.
A Equal to
B Less than
C More than
D None of these
For the same length of stroke and speed of crankshaft, the piston speed for a double acting steam engine is _________ the piston speed of single acting steam engine.
A Equal to
B Twice
C Three times
D Four times
The high pressure and low pressure cylinders in a Woolf type compound engine are regarded as having cranks
A 180° to each other
B 90° to each other
C 0° to each other
D None of these
The high pressure and low pressure cylinders in a Tandem type compound engine are regarded as having cranks
A 180° to each other
B 90° to each other
C 0° to each other
D None of these
The high pressure and low pressure cylinders in a receiver type compound engine are regarded as having cranks
A 180° to each other
B 90° to each other
C 0° to each other
D None of these
In a Tandem type compound engine, the high pressure and low pressure cylinders
A Have common piston rod
B Are set at 90°
C Have separate piston rods
D Are set in V-arrangement
In a receiver type compound engine, the high pressure and low pressure cylinders
A Have common piston rod
B Are set at 90°
C Have separate piston rods
D Are set in V-arrangement
In a Woolf type compound engine, the high pressure and low pressure cylinders
A Have common piston rod
B Are set at 90°
C Have separate piston rod
D Are set in V arrangement
The velocity of piston in a reciprocating steam engine is given by (where $$\omega $$ = Angular velocity of crank, r = Radius of crank pin circle, $$\theta $$ = Angle turned by crank from inner dead center and n = Ratio of length of connecting rod to the radius of crank)
A $$\omega {\text{r}}\left( {\sin \theta + \frac{{\sin 2\theta }}{{\text{n}}}} \right)$$
B $$\omega {\text{r}}\left( {\cos\theta + \frac{{\cos2\theta }}{{\text{n}}}} \right)$$
C $${\omega ^2}{\text{r}}\left( {\sin \theta + \frac{{\sin 2\theta }}{{\text{n}}}} \right)$$
D $${\omega ^2}{\text{r}}\left( {\cos\theta + \frac{{\cos2\theta }}{{\text{n}}}} \right)$$
In a steam engine, the piston rod is usually connected to the cross-head by means of a
A Knuckle joint
B Cotter joint
C Oldham coupling
D Universal joint

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