Tag: applications of pascals law

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Questions Related to applications of pascals law

Multiple choice physics pressure in fluids and atmospheric pressure hydraulic equipment applications of pascals law examples of hydraulic press

Hydraulic jacks works on which principle from below?

  1. the pressure in closed container is the same at all points

  2. the pressure in closed container is not same at all points

  3. the pressure in closed container is opposite at all points

  4. None
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Hydraulic jacks works on the Pascal's law that the pressure in closed container is the same at all points.

Multiple choice physics pressure in fluids and atmospheric pressure hydraulic equipment applications of pascals law examples of hydraulic press

Power required to drive a centrifugal pump is directly proportional to __________ of its impeller.

  1. Cube of diameter

  2. Fourth power of diameter

  3. Square of diameter

  4. Diameter
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Power required to drive a centrifugal pump is directly proportional to the fourth power of the diameter of its propeller.

$\therefore$  Power     $P \propto  D^4$

Multiple choice physics pressure in fluids and atmospheric pressure hydraulic equipment applications of pascals law examples of hydraulic press

The greater the differences in the areas of the cylinders, the greater the           force output of the big cylinder for hydraulic jack. Fill in the gap

  1. Potential

  2. Kinetic

  3. Rotational

  4. Dynamic
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

According to the Pascal's law       $\dfrac{F _1}{A _1} = \dfrac{F _2}{A _2}$
$\implies$   Greater the difference in the areas of the cylinder , greater is the force potential output of the big cylinder for hydraulic jacks.

Multiple choice physics pressure in fluids and atmospheric pressure hydraulic equipment applications of pascals law examples of hydraulic press

The center of pressure of surface subjected to fluid pressure is the point

  1. on the surface at which resultant pressure acts

  2. on the surface at which gravitational force acts

  3. equal to volume of liquid displaced

  4. none
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The center of pressure of surface subjected to fluid pressure is the point on the surface at which gravitational force acts

Multiple choice physics pressure in fluids and atmospheric pressure hydraulic equipment applications of pascals law examples of hydraulic press

Which of the following pump is preferred for flood control and irrigation applications?

  1. Centrifugal pumop

  2. Axial Flow pump

  3. Mixed flow pump

  4. Reciprocating pump
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The axial pump is a pump in which fluid flows axially to the rotation of the propeller. In Axial flow, the fluid flows parallel to the axis of rotation, as in a turbine. Axial flow pump contains a propeller or centrifugal impeller in the casing. Axial Flow pump is preferred for flood control and irrigation applications.

Multiple choice physics pressure in fluids and atmospheric pressure hydraulic equipment applications of pascals law examples of hydraulic press

Slip of a reciprocating pump is defined as

  1. Difference of theoretical discharge and actual discharge

  2. ratio of actual discharge to theoretical discharge

  3. ratio of theoretical discharge to actual discharge

  4. None
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Slip of a reciprocating pump is defined as  Difference of theoretical discharge and actual discharge.


Hence, option A is correct.