Explore topic-wise InterviewSolutions in Current Affairs.

This section includes 7 InterviewSolutions, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.

1.	What Is A Radialflow Turbine?
Answer» In a radialflow TURBINE, steam flows outward from the SHAFT to the casing. The unit is USUALLY a reaction unit, having both fixed and MOVING blades. In a radialflow turbine, steam flows outward from the shaft to the casing. The unit is usually a reaction unit, having both fixed and moving blades.

What Is A Radialflow Turbine?

Answer»

In a radialflow TURBINE, steam flows outward from the SHAFT to the casing. The unit is USUALLY a reaction unit, having both fixed and MOVING blades.

In a radialflow turbine, steam flows outward from the shaft to the casing. The unit is usually a reaction unit, having both fixed and moving blades.

Discussion

2.	Why Cavitation Will Occur In Centrifugal Pumps And Not In Displacement Pumps?
Answer» The formation of cavities (or bubbles) is induced by flow separation, or non-uniform flow velocities, inside a pump casing. In CENTRIFUGAL pumps the eye of the pump impeller is smaller than the flow area of pipe. This decrease in flow area of pump results in increase in flow rate. So pressure drop happened between pump SUCTION and the vanes of the impeller. Here air bubbles or cavities are FORMED because of liquid VAPOUR due to increase in temperature in impeller. This air bubbles are transmitted to pump which forms cavitation. The formation of cavities (or bubbles) is induced by flow separation, or non-uniform flow velocities, inside a pump casing. In centrifugal pumps the eye of the pump impeller is smaller than the flow area of pipe. This decrease in flow area of pump results in increase in flow rate. So pressure drop happened between pump suction and the vanes of the impeller. Here air bubbles or cavities are formed because of liquid vapour due to increase in temperature in impeller. This air bubbles are transmitted to pump which forms cavitation.

Why Cavitation Will Occur In Centrifugal Pumps And Not In Displacement Pumps?

Answer»

The formation of cavities (or bubbles) is induced by flow separation, or non-uniform flow velocities, inside a pump casing. In CENTRIFUGAL pumps the eye of the pump impeller is smaller than the flow area of pipe. This decrease in flow area of pump results in increase in flow rate. So pressure drop happened between pump SUCTION and the vanes of the impeller. Here air bubbles or cavities are FORMED because of liquid VAPOUR due to increase in temperature in impeller. This air bubbles are transmitted to pump which forms cavitation.

The formation of cavities (or bubbles) is induced by flow separation, or non-uniform flow velocities, inside a pump casing. In centrifugal pumps the eye of the pump impeller is smaller than the flow area of pipe. This decrease in flow area of pump results in increase in flow rate. So pressure drop happened between pump suction and the vanes of the impeller. Here air bubbles or cavities are formed because of liquid vapour due to increase in temperature in impeller. This air bubbles are transmitted to pump which forms cavitation.

Discussion

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