Q: What happens if large static torsional loadings are applied to a shaft made of ductile material?
A: When the shaft made of ductile material ( material with large plastic deformation) is subjected to l...
Q: A piston-cylinder device contains 0.8 kg of steam at 300°C and 3 MPa. Steam is cooled constant press...
A: The P-V diagram is as follows: From Steam Table corresponding to superheated steam at given pressur...
Q: 2-8 The stress-strain data from a tensile test on a cast-iron specimen are Engineering stress, MPa 3...
A: Plot the given values on graph (Note – stress is represented on X-axis and strain on Y-axis)
Q: 10 41. The hydrofioil boat has an A-36 steel propeller shaft that is 30 m long, It is connected to a...
A: Given, Length of Shaft (L) = 30 m Power (P)= 2000 kW No. of rotations of shaft = 1700 rpm Outer Dia...
Q: What two general competing processes control the creep rate of a metal? What is the relative strengt...
A: The two general competing processes that control the creep rate are strain hardening and strain soft...
Q: 12–225. Cars A and B are traveling around the circular race track. At the instant shown, A has a spe...
A: Given: The speed of car A, VA = 90 ft/s The acceleration of car A, aA = 15 ft/s^2 The speed of car B...
Q: Members ABC has a mass of 2.4 kg and is attached to a pin support at B. An 800-g sphere D strikes th...
A: Given data: Mass of rod ABC is m = 2.4 kg. Mass of sphere is M = 800 g. Velocity of ball is v1 = 3...
Q: An insulated piston–cylinder device contains 0.018 m3 of saturated refrigerant-134a vapor at 0.6 MPa...
A: Write the given data:
Q: The 15-kg collar has a velocity of 10 m/s at A while travelling towards B along the smooth guide. Th...
A: Given Data: The velocity of the collar at point A is VA = 10 m/s. The stiffness of the spring is k ...
Q: What is the general equation for torsion?
A: Torque causes twist(torsion) in the cross sections of the member on which it is applied. If the appl...
Q: Air at 200 kPa, 100°C, and Mach number Ma = 0.8 flows through a duct. Calculate the velocity and the...
A: Given Data: The value of static pressure is P = 200 kPa. The value of static temperature is T = 100...
Q: Consider a container of volume 250 cm3 that is divided into two compartments of equal size. In the l...
A: According to the problem, both Neon and Argon have the same temperature, volume, and pressure. Conve...
Q: 17-27. The sports car has a weight of 4500 lb and center of gravity at G. If it starts from rest it ...
A: The given problem can be solved by using Kinetics principle such as D'Alemberts principle. The rear ...
Q: What is power flight trajectory?
A: The trajectory is defined as the path traveled by an object under specific constraints. Power flight...
Q: Final ans. in 4 decimal places.
A:
Q: Air flows steadily at low speed through a horizontal nozzle (by definition a device for accelerating...
A:
Q: A particle moves in the x -y plane such that its position is defined by r = {2ti + 4t^2j} ft, where ...
A: The velocity of the particle can be obtained from the position vector as follows,
Q: Customary units by using the values listed for length and mass as defined values: Bending moment or ...
A: As moment bending moment or torque has two variables, force and distance. So, M = F × r…… (1) The SI...
Q: Describe the Poisson's Ratio?
A: Poisson's Ratio: It is the ratio of lateral strain to longitudinal strain. The value ranges from 0...
Q: Air enters a nozzle at 0.5 MPa, 420 K, and . Approximating the flow as isentropic, determine the pre...
A: Given data
Q: What does the moment of the force measure
A: Given data What does the moment of the force measure..??
Q: What fracture surface feature is often a clue for the presence of environment-assisted cracking in p...
A: Environmental assisted cracking(EAC) refers to brittle fracture of a ductile material due to environ...
Q: welcomeplease please needed solved this equastion, please static fluid / force on immersed surfaces
A:
Q: 7-3. The shaft is supported by a smooth thrust bearing at A and a smooth journal bearing at B. Deter...
A: Draw the FBD for the above problem.
Q: P19–1. Determine the angular momentum of the 100-kg disk or rod about point G and about point O. a) ...
A: given mass of disk = mass of rod = 100 kg Radius of disc (R) = 2 m length of rod (L) = 3 m anguula...
Q: With a volume of 200 L and a cylinder pressure of 100 kPa with the piston on the stopper a piston-cy...
A: Given: The initial volume of water inside the cylinder, V1 = 200 L = 0.2 m^3 The final volume of the...
Q: A piston–cylinder device contains 8 kg of refrigerant134a at 0.7 MPa and 60°C. The refrigerant is no...
A: The properties of refrigerant 134-a at P1 = 0.7 MPa and T1 = 60 oC are written as, The properties o...
Q: Ring C has an inside radius of 55 mm and an outside radius of 60 mm and is positioned between two wh...
A:
Q: To review the efficiency of ideal heat engines operating on the Otto and Diesel cycles, you are aske...
A: The thermal efficiency of the diesel cycle and otto cycle is given as follows,
Q: A____is a reproduction of original drawings by an architect or engineer
A: As we all know
Q: A truck is traveling down a road with a 4-percent grade at a speed of 60 mi/h when its brakes are ap...
A: Given data
Q: The rigid lever arm is supported by two A-36 steel wires having the same diameter of 4 mm. If a forc...
A: Given data
Q: A frictionless piston–cylinder device contains a saturated liquid–vapor mixture of water at 100°C. D...
A: Given data as per question Temperature of mixture = 1000 c Heat transfered = 600 kj Surrounding temp...
Q: Determine the friction force at the surface of contact.
A: Part (a) The 500 N can be resolved as,
Q: The particle moving in a straight line has an acceleration of a = 4t – 30, where t is in seconds. Wh...
A: Given Data: The acceleration a is given as a = 4t-30. The initial velocity v0 = 3 m/s. The initial ...
Q: 10-59. The A-36 hallow steel shaft is 2 m long and has an outer diameter of 40 mm. When it is rotati...
A: Given Data: The length of the shaft is L = 2 m. The power transmitted by the shaft is P = 32kW. The...
Q: determine the Mach number, total pressure, and total temperature after the heat interaction for the ...
A:
Q: Technician A says that excessively high pressure from an electric fuel pump can be caused by a fault...
A: Solution:
Q: The fuel consumption of an automobile is 14 km/ L.The fuel consumption, in miles per gallon, is?
A: Given: The fuel consumption of an automobile is V=14 km/L. The unit conversion factor from kilomet...
Q: A steel shaft is to be manufactured either as a solid circular or as circular tube. The shaft is req...
A:
Q: A freezer is maintained at 20°F by removing heat from it at a rate of 75 Btu/min. The power input to...
A: Given Data: The heat removed at temperature TL = 20◦F The surrounding temperature is TH = 75◦F The ...
Q: Customary units to SI units by using the values listed for length and force as defined values: Distr...
A: Distributed load is equal to load(force) acting per unit length of any member.
Q: Problem 1 (10 points) A robot with a weight of 1000 N on Mars was used for exploration. a Determine ...
A: Given- Weight of an object = Mass (m) × Acceleration due to gravity (g)
Q: 1. Steam enters a nozzle at 400°C and 800 kPa with a velocity of 10 m/s, and leaves at 300°C and 200...
A: Given : conditions at inlet P1 = 800 kPa T1 = 400oC V1 = 10 m/s A1 = 800 cm2 h1 = 3267.7 kJ/kg v1...
Q: The shear stress–strain diagram for an alloy is shown in the figure. If a bolt having a diameter of ...
A: Given data
Q: Apply the second law of thermodynamics to cycles and cyclic devices.
A: Second law of thermodynamics: It states that it is impossible to construct a device which operate in...
Q: what two charged particles exist in a plasma
A: Plasma: It is a hot gas composed of electrons and ions. The plasma gas is generated by flowing gas...
Q: An engineer claims that the flow of SAE 30W oil, at 20 °C,through a 5-cm-diameter smooth pipe at 1 m...
A: Given data: The diameter pipe, d = 5 cm. Flow rate through pipe, Q = 1 million N/h. Now density of...
Which system does more work: (a) ΔE= -436J, q= 400J, or (b) ΔE = 317 J, q= 347J?
Step by step
Solved in 3 steps with 4 images
- The drive is by V-belts from an electric motor running at 1500 r.p.m. A compressor, requiring 75000W is to run at about 500 r.p.m. The diameter of the pulley on the compressor shaft must not be greater than 1.2 meter while the centre distance between the pulleys is limited to 1.85 meter. The belt speed should not exceed 1500 m/min. Determine the number of V-belts required to transmit the power if each belt has a cross-sectional area of 3 cm2, density 1100 kg/m3 and an allowable tensile stress of 3 MPa. The groove angle of the pulley is 50°. The coefficient of friction between the belt and the pulley is 0.3. Calculate also the length required of each belt.My answer here is R_av= 150 kN, R_b= 210 kN amd R_ah= 0 kN please verfy if my answers are correctIf a spring with elastic constant k [N/m] is deformed at distance x [m], then its potential energy is:
- An axial stage has a mean diameter of 60 cm and runs at 15000 rpm. If the actual temperature-rise and pressure ratio developed are 300 C and 1.4 respectively, determine (i) the power required to drive the compressor while delivering 57 kg/s of air; assume mechanical efficiency of 86 % and an initial temperature of 350 C. (ii) the degree of reaction if the temperature at the rotor exit is 550 C.ᴀ ʀᴇꜰʀɪɢᴇʀᴀᴛᴏʀ ʙᴀꜱᴇᴅ ᴏɴ ɪᴅᴇᴀʟ ᴠᴀᴘᴏʀ ᴄᴏᴍᴘʀᴇꜱꜱɪᴏɴ ᴄʏᴄʟᴇ ᴏᴘᴇʀᴀᴛᴇꜱ ʙᴇᴛᴡᴇᴇɴ ᴛʜᴇᴛᴇᴍᴘᴇʀᴀᴛᴜʀᴇ ʟɪᴍɪᴛꜱ ᴏꜰ -20 ᴅᴇɢ ᴄ ᴀɴᴅ 40 ᴅᴇɢ ᴄ . ᴛʜᴇ ʀᴇꜰʀɪɢᴇʀᴀɴᴛ ᴇɴᴛᴇʀꜱ ᴛʜᴇ ᴄᴏɴᴅᴇɴꜱᴇʀ ᴀꜱ ꜱᴀᴛᴜʀᴀᴛᴇᴅᴠᴀᴘᴏʀ ᴀɴᴅ ʟᴇᴀᴠᴇꜱ ᴀꜱ ꜱᴀᴛᴜʀᴀᴛᴇᴅ ʟɪQᴜɪᴅ . ᴛʜᴇ ᴇɴᴛʜᴀʟᴘʏ ᴀɴᴅ ᴇɴᴛʀᴏᴘʏ ᴠᴀʟᴜᴇꜱ ꜰᴏʀ ꜱᴀᴛᴜʀᴀᴛᴇᴅ ʟɪQᴜɪᴅ ᴀɴᴅᴠᴀᴘᴏʀ ᴀᴛ ᴛʜᴇꜱᴇ ᴛᴇᴍᴘᴇʀᴀᴛᴜʀᴇꜱ ᴀʀᴇ ɢɪᴠᴇɴ ɪɴ ᴛʜᴇ ᴛᴀʙʟᴇ ʙᴇʟᴏᴡ|ɪꜰ ᴛʜᴇ ᴄɪʀᴄᴜʟᴀᴛɪᴏɴ ʀᴀᴛᴇ ᴏꜰ ᴛʜᴇ ʀᴇꜰʀɪɢᴇʀᴀɴᴛ ɪꜱ 0.025 ᴋɢ/ꜱᴇᴄ , ᴛʜᴇ ʀᴇꜰʀɪɢᴇʀᴀᴛɪᴏɴ ᴇꜰꜰᴇᴄᴛ ɪꜱ ᴇQᴜᴀʟ ᴛᴏᴀ) 1.2 ᴋᴡ ʙ) 2.5 ᴋᴡ ᴄ) 3.2 ᴋᴡ ᴅ) 2.1 ᴋᴡAn ideal spring has a spring constant k = 24.3 N/m. What is the amount of work that must be done to stretch the spring 0.800 m from its relaxed length? ________ J
- Determine the size of the clutch plate suitable for an Ambassador car employing a single plate type friction clutch and developing 37.5 kW at 4282rpm. The inside diameter of the clutch plate is 0.6 times its outside diameter and it is to be ensured that even after a loss of 30% of the engine torque due to wear of the clutch facing, the clutchdoesn’t slip. The intensity of the pressure on the facing is not to exceed 70 kPa. Assume µ = 0.3.What is the answer? AQuestion A or B?Water is flowing in a 90ο pipe with uniform cross section area of A=0.0083 m2. The velocity along the horizontal direction is v1=6.0 m/s. The pressure at the section 1 is p1=500kPa. Elevation difference and energy losses can be neglected. The density of water is ρ=1000kg/m3. An external force is needed to hold the pipe in equilibrium. (1) Select the correct expression of the external force component in the horizontal direction Rx_________ A. B. C. D.
- Water is flowing in a 90ο pipe with uniform cross section area of A=0.0083 m2. The velocity along the horizontal direction is v1=6.0 m/s. The pressure at the section 1 is p1=500kPa. Elevation difference and energy losses can be neglected. The density of water is ρ=1000kg/m3. An external force is needed to hold the pipe in equilibrium. (2) Select the correct expression of the external force component in the vertical direction Ry_________ A. B. C. D.If the full load copper loss of transformer is 389 W, then the copper loss at half load is given byA hydraulic turbine is used to generate power by using the water in a dam. The elevation difference between the free surfaces upstream and downstream of the dam is 130 m. The water is supplied to the turbine at a rate of 150 kg/s. If the shaft power output from the turbine is 155 kW, the efficiency of the turbine is (a) 0.79 (b) 0.81 (c) 0.83 (d ) 0.85 (e) 0.88