6141. A pressure of 10 m head of water is equivalent to __________ kN/m².
98
147
196
49
✅ The correct answer is option A.
Chemical Engineering
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6142. Which of the following facilitates close control of flow of fluids?
Gate valve
Globe valve
Butterfly valve
Check valve
✅ The correct answer is option B.
6143. To handle smaller quantity of fluid at higher discharge pressure, use a __________ pump.
Reciprocating
Centrifugal
Volute
Rotary vacuum
✅ The correct answer is option A.
6144. The buoyant force acting on a floating body is dependent on the
Viscosity of the liquid
Weight of the liquid displaced
Depth of immersion of the body
Surface tension of the liquid
✅ The correct answer is option B.
6145. In a fluidised bed reactor
Temperature gradients are very high
Temperature is more or less uniform
Hot spots are formed
Segregation of the solids occurs
✅ The correct answer is option B.
6146. What causes cavitation in centrifugal pump?
High suction pressure
Low barometric pressure
Low suction pressure
High suction velocity
✅ The correct answer is option C.
6147. The ratio of width to depth for the most economical rectangular section in open channel flow is
0.5
1
1.5
2
✅ The correct answer is option D.
6148. A stream line is
Fixed in space in steady flow
Always the path of particle
Drawn normal to the velocity vector at every point
A line connecting the mid points of flow cross-section
✅ The correct answer is option A.
6149. Disc compensators are provided in large diameter fuel gas carrying pipelines to
Keep the pipe in proper orientation
Make the pipe joint leak-proof
Account for contraction/expansion of pipe due to temperature changes of the surroundings
Account for the pressure variation side the pipeline
✅ The correct answer is option C.
6150. In case of a centrifugal pump, the theoretical head developed is dependent on the __________ the impeller.
Speed of
Diameter of
Fluid velocity leaving
All of the above
✅ The correct answer is option D.