13 and 14 13 Positive displacement, hydraulic pumps convert mechanical energy intoA) Liquid flow onlyB) Pressurized liquid flowC) Useful workD) liquid flow and kinetic energy14 Depth type elements can be given a nominal rating which indicates the element'spore size.A) Average C) LargesB) Smallest tD) Most frequentF215 Thereturns to the reservoir.SA) Baffle plateB) Air breatherC) Vent lineD) Suction line20#3is the device which allows entrained air to escape from the hydraulic fluid or16 When a gas volume is reduced as in a compressor, gasA) Pressure, doublesB) Pressure, increasesC) Potential energy, decreasesD) Potential energy, remains the same17 With a constant cycling of its movable member, a positive displacement pump develops aF3Eodd$694F4R%5FFSTA6GF6Y&7increases and temperatureBF7H➤11*U8N19

13 Positive displacement, hydraulic pumps convert mechanical energy into A) Liquid flow only B) Pressurized liquid flow C) Useful work D) liquid flow and kinetic energy 14 Depth type elements can be given a nominal rating which indicates the element's pore size. A) Average C) Larges B) Smallest tD) Most frequent

13 Positive displacement, hydraulic pumps convert mechanical energy into A) Liquid flow only B) Pressurized liquid flow C) Useful work D) liquid flow and kinetic energy 14 Depth type elements can be given a nominal rating which indicates the element's pore size. A) Average C) Larges B) Smallest tD) Most frequent

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

6. Bordon gauge is a typical device used to measure ....... c) absolute pressure d) vacuum pressure a) gauge pressure b) atmospheric pressure 7. The inclined manometers are used to b) read very a) read vacuum pressure accuracy high-pressure c) read pressure with high d) a & c 8. In a liquid if cohesion > adhesion then a) concave b) convex surface formed. d) none of these c) flat 9. Newton's law of viscosity relates: a) pressure, velocity and viscosity b) shear stress and rate of angular deformation in a fluid c) yield shear stress, rate of angular deformation and viscosity d) pressure, viscosity and rate of angular deformation 10. a) small positive pressures Piezometer manometer is the simplest type of manometer used for............. b) small negative pressures c) a & c d) none of these
1) For which type of flow is the momentum flux correction factor significant and must be considered in analysis? a) jet flow b) laminar flow c) transitional flow d) turbulent flow 2) Linear momentum is a vector, which is equal to the product of the mass and the velocity of the body. True or False 3) Which of the following force does NOT belong to body force? a) pressure b) electric c) gravity d) magnetic
1.) A tank has two rooms separated by a membrane. Room A has 1 kg of air and a volume of 0.5 m3; room B has 0.75 m3 of air with density of 0.8 kg/m3. The two rooms on the tank makes indicates what type of system? a.)Control mass b.) Control volume c.) Isolated system 2.) A hydraulic lift has a maximum fluid pressure of 500 kPa. What should the piston cylinder diameter be to lift a mass of 850 kg. a.) 16.677 m^2 b.) 0.0017 m^2 c.) 0.017 m^2 d.) 1.7 m^2
25 - Which is a method used to determine the flow velocity and flow rate of a fluid? A) MacMichael B) Saybolt Furol Viscosity C) Engler Degree D) Vortexmeter E) Radiation Pyrometry
Choose the wrong statement a)Newton's law of viscosity relates between shear stress and angular deformation b)Water hammer is caused by sudden closure of valves and creates a pressure fluctuation in the system c)Cavitation of the pump can be avoided by increasing its suction pressure d)Heat, handheld pumps, artesian well pumps may be example for positive displacement pumps e)None
Problem 1 A reservoir of glycerin has a mass of 1,200 kg and a volume of 0.952 cu. m. find a.) weight b.) unit weight c.) mass density d.) specific gravity Problem 2 If an object has a mass of 22 kg at sea level, a.) what will be its weight at a point where the acceleration due to gravity g=9.75 m/s² b.) what will be its mass at that point? Problem 3 What is the weight of a 45-kg boulder if it is brought to a place where the acceleration due to gravity is 395 m/s per minute? Problem 4 What is the specific weight of air at 480 kPa absolute and 21°C? Problem 5 Find the mass density of helium at a temperature of 4 °C and a pressure of 184 kPa gage, if atmospheric pressure is 101.92 kPa. (R=2079 J/kg-°K) Problem 6 At 32°C and 205 kPa gage, the specific weight of a certain gas was 13.7 N/m³. Determine the gas constant of this gas. Problem 7 Air is kept at a pressure of 200 kPa absolute and a temperature of 30°C in a 500-liter container, what is the mass of air? Problem 8 What pressure is…
Q1 // Choose the correct answer: 1- A fluid is one which can be defined as a substance a) Has some shear stress at all points. b) Can deform indefinitely under the action of the smallest shear force. c) Has the small shear stress in all directions 2- What is mean by an incompressible fluid? a) Density change with pressure. b) Density does not change with pressure. c) Neither a. or b. 3- A piemeter is used to measure positive gauge pressure of liquid and only limited to low pressure measurement a) b) c) True. False. Neither a or b. 4- The correct water pressure (ywater 9810 N/m') at a depth of 10 m in a tank is open to atmosphere is 98100 K pa gage 98100 pa gage 9.81 pa gage a) b) 5- Which is the expensive device for measuring flow/discharge rate Venturi meter a) b) c) Pitot tube Orifice meter
choose the correct answer Q1A- Losses of pressure in fluid due to resistance by viscose shear stresses are: * a) Minor losses b) Fitting losses c) Friction losses d) Total head losses e) None of all above B- when pipe with the different diameter are connected by series, then total losses will be the sum of each pipe losses * a) True b) False
A spherical neutrophil 16µm in diameter is resting as shown in the attached photo. The pressure difference between the inside and outside of the cell is 7.5Pa. a) Draw free body diagrams of the whole cell and one hemisphere of the cell. b) Calculate cortical tension in the cell. In a micropipette aspiration experiment, a suction pressure of 52.5 Pa was used to aspirate the neutrophil membrane. c) Draw free body diagrams of the whole cell under micropipette aspiration and the portion of the cell in the micropipette. What is the diameter of the micropipette tip used to make this hemispherical projection? Next, the micropipette aspiration was stopped, and the cell was treated with Cytochalasin D, an inhibitor of actin polymerization, causing the cortical tension to decrease by half. d) Assuming the pressures inside and outside the cell have not changed, what is the new cell radius? e) If the same micropipette was used to aspirate the cell, what would be the new suction pressure?
Water flows from a 0.75 m pipe to a 1 m pipe. If losses are neglected then the 1 m diameter pipe will most likely A) Have higher velocity than 0.75 m pipe B) Be at the same pressure as the 0.75 m diameter pipe C) Be at a higher pressure than 0.75 m pipe D) Be at a lower pressure than 0.75 m pipe.
19. Convert the following pressure readings to kPaa assuming that the barometer reads 760 mm Hg. a) 40 cm Hg vacuum; b) 100 psig; c) 8 in Hg vacuum; d) 900 mm Hg gage
1) If a gas is heated against a pressure, keeping the volume constant, then work done will be equal a) Zero b) - ve c) + ve d) pressure x volume e) Anywhere between zero and infinity. 2) A closed system is defined in one of the following: a) mass crosses the boundary but not the energy. b) neither mass nor energy crosses the boundaries of the system. c) both energy and mass cross the boundaries of the system. d) mass does not cross boundaries of the system, though energy may do so thermodynamic reactions take place. 3) Which of the following is an equivalent change? a) 1K = 1°F b) 1°C = 1°F c) 1K = 1°C d) 1K = 1°Rankine e) 1°C = 1°Rankine 4) A piston cylinder contains air at 400 kPa, 300 K and a volume of 0.35m³. A constant pressure process gives 40 kJ of work out. Find the final volume of the air. a) 0.45 m3 b) 0.03 m³ c) 0.1 m d) 0.05 m³ 5) Change in enthalpy in a closed system is equal to heat transferred if the reversible process takes place at constant: a) pressure b) temperature…