A syringe is used to deliver vaccine against an infectious disease. This particular syringe is not perfect so it is expected that 5% of the vaccine flow rate out of the needle will leak past the plunger. The area of the plunger is 400mm². If the vaccine has to be injected steadily with the flow rate of 250 cm³/min, sketch the control volume and determine the speed at which the plunger should be moved.

A syringe is used to deliver vaccine against an infectious disease. This particular syringe is not perfect so it is expected that 5% of the vaccine flow rate out of the needle will leak past the plunger. The area of the plunger is 400mm². If the vaccine has to be injected steadily with the flow rate of 250 cm³/min, sketch the control volume and determine the speed at which the plunger should be moved.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

In a syringe the plunger has a face area of 500 mm^2. If the liquid is to beinjected steadily of a rate of 300 cm^3/min what is the speed of the plunger? The leakage rate is also given as 0.1 times the volume flow rate at the needle.
If the velocity in a 300-mm pipe is 0.50 m/s, what is the velocity in a 75-mm-diameter jet issuing from a nozzle attached to the pipe?
A pipe tapers over 60m from 450mm in diameter to 675mm in diameter. The gauge pressure at the inlet is 75 kN/m2 and the gauge pressure at the outlet is 90 kN/m2. If the centreline of the pipe rises at a gradient of 1 in 80 and the energy loss due to friction is 0.01m per metre length determine the flowrate in the pipeline and the velocity at entry and exit.
The pressure gage leading to the turbine casing of a Francis turbine reads 0.5 MPa and the center of the spiral casing is 5 m above the tailrace. What is the net head if the velocity of the water entering the turbine is 10 m/s?
What would be the effect on the result of the following systematic errors of measurement! a. The jockey weight in error by 0.001kg. b. The distance from the center of the vane to the pivot of the lever in error by 1mm. C. The diameter of the water jet emerging from the nozzle 0.1mm different from the nozzle diameter. It has heen assumed that the velocity in the let is uniform over the entire cross section.
The plunger diameter of a single-acting reciprocating pump is 115 mm and the stroke is 230 mm. The suction pipe is 90 mm in diameter and 4.2 m long. If cavitation takes place at the suction head of 4 m, the barometer stands at 10.3 m of water, and the water level in the sump is 3 m below the pump cylinder axis.1. Find the maximum allowable speed to operate the pump
Water is flowing out of the nozzle (2) into atmospheric pressure (101 kPa). What is the gauge pressure at point (1), when flow rate is 32.18 m3/h and frictional losses are ignored? Water density is 1000 kg/m3.
A 12′′ pipe line carries oil of specific gravity 0.811 at a velocity of 80.0 ft/sec. At points A and B, measurements of pressure and elevation were 52.6 psi and 100.0 ft and 42.0 psi and 110.0 ft,respectively. For steady flow, find the lost head between A and B. indicate the free body diagram
The diameter of the pipe at the larger end is 0.50 cm and at the smaller end is 0.20 cm, the larger and smaller ends located 7 meters and 3 meters respectively, from the datum line. If the larger end, the velocity is 1.2 m/s and the pressure is 5200 kN/m2 , compute the velocity at the smaller end.
From a very large tank with an absolute pressure of 3 bar, the water is discharged to the atmosphere by means of 2 smooth pipes of 100 m length, 1 m and 50 m long, connected in series. The height difference between the water level in the tank and the outlet is 50m, and the diameters of the pipes are 50mm and 100mm, respectively. In addition, a 500kPa turbine is placed on the 2nd Pipe. a) Draw the system roughly, show the dimensions on it.b) Calculate the exit velocity of the water from the 2nd pipe, ignoring the local losses.
The static head corresponding to a flow velocity of 10 m/S
A vessel is being filled with water through an inlet at section 1 having a diameter of 40 mm and a faucet at section 3. The velocity at section 1 is given as 5 m/s, while the discharge at section 3 is given as 0.012 m^3/ s. Assume constant water level. Use 60 mm for the diameter of the outlet at section 2. A. What is the discharge at section 2? B. What is exit velocity at section 2? C. If the water level varies and the velocity at section 2 is 8m/s find the rate of change when d is equal to 1000mm?