Volumetric Flow Rate Calculations

What is the formula for calculating flow rate?

• Q = A * V

• Q = A + V

• Q = A - V

• Q = A / V

If the volume of liquid passing through a pipe in a given time is 1000 ml and the time taken is 10 seconds, what is the flow rate in ml/s?

• 500 ml/s

• 100 ml/s

• 50 ml/s

• 200 ml/s

What is the unit of flow rate?

• Kg/m

• m/s^2

• N/m^2

• L/min or m^3/s

If the viscosity of a liquid is 5 poise and the pressure difference is 10 pascal, what is the flow rate in poise?

• 50 poise

• 15 poise

• 8 poise

• 2 poise

What is the relationship between flow rate and viscosity?

• Flow rate decreases as viscosity increases

• Flow rate is not affected by viscosity

• Flow rate increases as viscosity increases

• Flow rate and viscosity are unrelated

If the diameter of a pipe is 5 cm and the velocity of the liquid is 10 m/s, what is the flow rate in m^3/s?

• 0.03925

• 0.3925

• 0.0003925

• 0.003925

How does the flow rate change with an increase in viscosity?

• Flow rate becomes unpredictable

• Flow rate decreases

• Flow rate remains constant

• Flow rate increases

If the flow rate of a liquid is 2 L/s and the density is 1000 kg/m^3, what is the mass flow rate in kg/s?

• 1000

• 3000

• 500

• 2000

If the flow rate of a liquid is 500 cm^3/s and the cross-sectional area of the pipe is 100 cm^2, what is the velocity of the liquid in cm/s?

• 750 cm/s

• 250 cm/s

• 100 cm/s

• 5 cm/s