Homework Answers
Force (N) is nothing but area (m2) multiplied by pressure exetred (N/m2).
Volume flow rate is not necessary for calculation of force but flow rate is required for velocity and power produced by actuator.
While mass flow rate greately influence the quantity of force as per newtons second law:
Force is rate of change of momentum.
Where F is force in N
m is mass in kg.
v is velocity in m/s
t is time in seconds
So best answer is true.
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The force produced by an actuator or a cylinder depend on the supplied flow rate. 1....
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Question 1 a- The friction factor for laminar flow doesn’t depend on pipe roughness. .(True) (false) b- The friction factor for laminar flow can be directly calculated, but experiments are needed to find the friction factor for turbulent flow. . (True) (false) c- The head losses for an orifice meter and venture meter are about the same .(True) (false) d- Head loss can be expressed in dimensions of length . (True) (false) e Which of the following effects can be...
QUESTION 17 Calculate the retraction force output in kN for a double acting linear actuator with...
QUESTION 17 Calculate the retraction force output in kN for a double acting linear actuator with a piston diameter of 75 mm and a rod diameter of 17 mm. The minimal system pressure is 305 kPa. QUESTION 18 Calculate the area of a pipe in cmif flow rate is 21 Vmin and flow velocity is 84 cm/s.
1) A parallel plate actuator (PPA) consists of two square electrodes, 500 um on a side,...
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1. A process control valve with an equal percentage plug is used to control an actuator...
1. A process control valve with an equal percentage plug is used to control an actuator with a maximum stem travel of 5cm. The minimum and the maximum flow rates of the valve are, respectively, 0.1 m/s and 4.0m3/s. What will be the flow rate when the stem movement is (a) 10mm (b) 20mm?
please answer all of these No restraining force is required for steady flow in a straight...
please answer all of these
No restraining force is required for steady flow in a straight pipe with friction loss. True False Question 5 3 pts The head loss for a smooth pipe can be neglected. True False Question 6 5 pts Calculate the hydraulic diameter (in meters) for an equilateral triangular pipe (completely full) cross- section with 1-m sides.
4) Answer with true or false 1) the force applied to the specimen in shear center was static( 2) the force applied to the specimen in buckling was dynamic ( ) 3) the force applied to the specimen...
4) Answer with true or false 1) the force applied to the specimen in shear center was static( 2) the force applied to the specimen in buckling was dynamic ( ) 3) the force applied to the specimen in thin cylinder was static 4) the force applied to the specimen in deflection of beams was static)
4) Answer with true or false 1) the force applied to the specimen in shear center was static( 2) the force applied to the...
Drag force is parallel and in the same direction of the free stream velocity.
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a. (2 pts.) The film temperature, used to evaluate properties, for internal flow is the average of the surface temperature and the external free stream fluid temperature. True or False. 1. b. (2 pts.) The local convection coefficient, h, around the circumference of a cylinder in cross flow is constant (it does not vary with position as you travel around the cylinder.) True or False c. (2 pts.) For internal fully developed flow the convection coefficient, h, decreases as the...
1) Estimate the total hydrostatic force ? on the Hoover Dam. 2)A 0.550 kg metal cylinder...
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Name: Problem 4 (20 pts). The velocity potential for a cylinder rotating in a uniform stream of fluid is 2TT where U, a, Г are constants. The density of the flow is , and gravitational force is negligible. Compute the pressure difference between points A and B. -+
Name: Problem 4 (20 pts). The velocity potential for a cylinder rotating in a uniform stream of fluid is 2TT where U, a, Г are constants. The density of the flow is...
QUESTION 17 Calculate the retraction force output in kN for a double acting linear actuator with a piston diameter of 75 mm and a rod diameter of 17 mm. The minimal system pressure is 305 kPa. QUESTION 18 Calculate the area of a pipe in cmif flow rate is 21 Vmin and flow velocity is 84 cm/s.
1) A parallel plate actuator (PPA) consists of two square electrodes, 500 um on a side, separated by 8 um, in a vacuum. What is the force produced if 100 V DC is applied across the electrodes
1. A process control valve with an equal percentage plug is used to control an actuator with a maximum stem travel of 5cm. The minimum and the maximum flow rates of the valve are, respectively, 0.1 m/s and 4.0m3/s. What will be the flow rate when the stem movement is (a) 10mm (b) 20mm?
please answer all of these
No restraining force is required for steady flow in a straight pipe with friction loss. True False Question 5 3 pts The head loss for a smooth pipe can be neglected. True False Question 6 5 pts Calculate the hydraulic diameter (in meters) for an equilateral triangular pipe (completely full) cross- section with 1-m sides.
4) Answer with true or false 1) the force applied to the specimen in shear center was static( 2) the force applied to the specimen in buckling was dynamic ( ) 3) the force applied to the specimen in thin cylinder was static 4) the force applied to the specimen in deflection of beams was static)
4) Answer with true or false 1) the force applied to the specimen in shear center was static( 2) the force applied to the...
a. (2 pts.) The film temperature, used to evaluate properties, for internal flow is the average of the surface temperature and the external free stream fluid temperature. True or False. 1. b. (2 pts.) The local convection coefficient, h, around the circumference of a cylinder in cross flow is constant (it does not vary with position as you travel around the cylinder.) True or False c. (2 pts.) For internal fully developed flow the convection coefficient, h, decreases as the...
Name: Problem 4 (20 pts). The velocity potential for a cylinder rotating in a uniform stream of fluid is 2TT where U, a, Г are constants. The density of the flow is , and gravitational force is negligible. Compute the pressure difference between points A and B. -+
Name: Problem 4 (20 pts). The velocity potential for a cylinder rotating in a uniform stream of fluid is 2TT where U, a, Г are constants. The density of the flow is...
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