Related Questions

The distance by which the __________ of the D-slide valve overlaps the steam port is called exhaust lap.
A Inner edge
B Outer edge
C Corners
D None of these
In a steam engine, the earlier cut-off with a simple slide valve may be obtained by increasing the steam lap and the angle of advance of the eccentric but keeping constant the travel and lead of the valve, this method will
A Cause withdrawing or throttling of steam
B Reduce length of effective stroke of piston
C Reduce maximum opening of port to steam
D All of these
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
For the same terminal conditions and valve size, the pressure drop in a fully opened globe valve as compared to that in a gate valve is
A More
B Less
C Equal
D Either A or B; depends on the viscosity of the fluid
The displacement of the D-slide valve is __________ the steam lap by a distance known as lead of the valve.
A Greater than
B Less than
C Equal to
D None of these
In a steam engine, one method of obtaining the earlier cut-off with a simple slide valve is by increasing the angle of advance of the eccentric while the throw of the eccentric, steam lap and exhaust lap are kept constant. This method will
A Cause withdrawing or throttling of steam
B Reduce length of effective stroke of piston
C Reduce maximum opening of port to steam
D All of these
The ionosphere overlaps which two layers of the atmosphere?
A Troposphere and Mesosphere
B Mesosphere and Stratosphere
C Ionosphere and Homosphere
D Exosphere and Thermosphere
When one plate overlaps the other and the two plates are riveted together with two rows of rivets, the joint is known as
A Single riveted lap joint
B Double riveted lap joint
C Double riveted single cover butt joint
D Double riveted double cover butt joint
The size of inlet valve of an engine in comparison to exhaust valve is
A More
B Less
C Same
D More/less depending on capacity of engine
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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