7. The resistance of a coil of nickel wire at 20°C is 100 ohms. The temperature of the wire is increased and the resistance rises to 130 ohms. If the temperature coefficient of resistance of nickel is 0.006/°C at 20 °C, determine the temperature to which the coil has risen.
Q: Determine if the following is true/false. Provide the necessary solution. The saturated…
A: Superheated steam is a very high-temperature vapour produced by heating saturated steam produced…
Q: a) When a strain gauge is stretched under axial tension, its resistance varies with the imposed…
A:
Q: Calculatethe strain experienced by a rod of length 2m subjected to a force that causes a change of…
A:
Q: A copper conductor has a resistance of 80 Ω at room temperature. If resistance temperature…
A: Given Data→ Resistance of the copper conductor R=80Ω At room temperature Resistance temperature…
Q: For safe and reliable operation, a certain polypropylene pipe must withstand an internal pressure of…
A:
Q: A steam pipe having a surface temperature of 573 K passes through a room where the temperature is…
A: Given data:
Q: When the cold junction of a thermocouple thermometer is at 0°C and the hot junction at 100 °C, the…
A: It is known that for a thermocouple , the output voltage is given by V0 = S∆Twhere V0: output…
Q: What is the average thermal conductivity for the composite material shown? 7 cm 4 cm 10 cm 1 2 3…
A: As per given question We have to determine average thermal conductivity for the composite material
Q: Consider a solid cylindrical rod whose ends are maintained at constant but different temperatures…
A: As we know by Fourier law for heat conduction q=-kAdTdx As given rod ends are maintained at…
Q: Consider a Wheatstone bridge circuit that has all resistances equal to 100 Ω. The resistance R1 is a…
A: = Wheatstone bridgeSince R1 in a strain guage of 100-Ω resistance . ∵R1=Re=R3=R4=100-e.
Q: 10 km of steel railroad track are placed when the temperature is 20 C. The linear coefficient of…
A: Given, L = 10 Km = 10000 m T1 = 20 C α=11×10-6 1C T2 = 50 C
Q: A resistive strain gauge, G = 2.2, is cemented on a rectangular steel bar with the elastic modulus E…
A: Given data: G=2.2E=205×106 kN/m2R=100 ΩF=12 kN Need to determine the change of the strain gauge.
Q: A RTD made up of platinum has a=0.00385 and has a initial resistance of 360. Find the value of…
A:
Q: 5. The coefficient of linear expansion of steel is 12 x 10-/C°. A railroad track is made of…
A:
Q: Three springs A, B, and C has spring constants 213 N/mm, 143 N/mm, 341 N/mm respectively. Determine…
A: Equivalent spring formula for series combination 1keq=1k1+1k2+1k3
Q: At a temperature of 60°F, a 0.04-in. gap exists between the ends of the two bars shown. Bar (1) is…
A:
Q: Question 2 A steel railroad rails 10 m long are laid with clearance of 3 mm at a temperature of…
A:
Q: A resistor is measured with a device which has a known precision of ±0.075 kN when a large number of…
A: Given data: The precision of the standard device or the standard deviation is; σ=±0.075 kΩ. The…
Q: Engineering science An Aluminium bar welded to the bottom of a skillet weigh 1.5 kg. How much heat…
A: Heat is given as : Q = mCdT
Q: The steel plate shown below is put in into a rigid chamber, such that spacings of size s = 0.00188…
A: Write the expressions of normal strains. εx=1Eσx-νσy0.001884=1200×109σx-0.28σyσx-0.28σy=94×106…
Q: Two 1-mm diameter wires support the rigid bar as shown. Initially, the 300 mm long rigid bar is…
A: Since in the question it is given that, the plate is still in the horizontal position after the…
Q: 5. A 1.2 m long conductor is made of a mixture (i.e. alloy) of different materials. The resistivity…
A:
Q: Q4. Two long rods of the same diameter, one of brass(k= 85 W/mK) and the other of copper (k=375…
A: Given: Conductivity of brass k1=85W/mK Conductivity of copper k2=375W/mK Distance at which…
Q: Two large containers A and B of the same size are filled with different fluids. The fluids in…
A: Answer: The metal bar will take 7.16683 min to reach 99.6℃ from the start of the process.
Q: Determine the following given the figure below: a. Equivalent stiffness b. Angular frequency c.…
A: "Since you have asked multiple questions, we will solve the first question for you. If you want any…
Q: 30_ Select the correct statement for a radial conductivity exp…
A: For Q 30 ) For a radial conductivity experiment The inner section represent the heating area and the…
Q: Three parallel springs have stiffness constant of 100 N/m each. Determine the spring stiffness…
A: Given Data K=100 N/m
Q: Calculate the Resistance , if the RTD temperature is 2746.4 oC and Sensitivity is 2.1 oC/ohm
A: The expression for the sensitivity is…
Q: Example 3.2 An undetermined number of feet of wire have been used from the carton of Fig. 3.6. Find…
A: Given dada Diameter = 1/16 inch Resistance R = 0.5 ohm Find length of copper wire = ?
Q: The switch in the circuit below has been open for a long time before it is closed at time t=0. We…
A:
Q: 1. Find the strain that results from a tensile force of 1000 N applied to a 10 m long al having…
A: Hi and thanks for the questions. Since you have asked multiple questions, as per our honor code, we…
Q: At a temperature of 60°F, a 0.05-in. gap exists between the ends of the two bars shown. Bar (1) is…
A: Given data as per the question Initial temperature =600 F For aluminium bar propreties,[E = 10,000…
Q: Question 1 1. Use suitable sketches to describe the principle of operation of a resistance strain…
A: 1. Strain gauge works on the principle of wheat stone bridge. Any minute change in the material…
Q: 2. The resistance of a copper wire used to make a motor is 0.5 Ω at 25oC and 0.8 Ω at the motor’s…
A: Given data, The relationship between resistance and temperature is given as – The operating…
Q: 4. Derive the critical radius of insulation for a spherical shell.
A: Given data To derive the critical radius of insulation for a spherical shell.
Q: At a temperature of 60°F, a 0.05-in. gap exists between the ends of the two bars shown. Bar (1) is…
A:
Q: The input and output relationship of a temperature measurement system is given in the table. Find…
A:
Q: term dT/dx Where T is temperature and x is length, in Fourier law conduction, is called Temperature…
A: The Fourier Law suggests that , heat transfer is directly proportional to the temperature gradient.
Q: A platinum resistance thermometer has a resistance of 5 ohm at 0°C and 2.5 ohm at 100°C Calculate…
A: Data given- R0 = 5 ohm R100 = 2.5 ohm If Rt = 10 ohm so t = ?
Q: In some cases, the coefficient of linear expansion varies with temperature, showthat in that…
A: a) Area Expansion A = A∘( 1+ 2 α ∆t)A∘ = 33.2 × 33.2 = 1102.24 cm2a = 19 × 10-6
Q: Calculate the strain experienced by a rod of length 2m subjected to a force that causes a change of…
A: Resistance can be Determined as,
Q: A metal bar at a temperature of 200F is placed in a room at a constant temperature of 20F. (a) If…
A: Given data:
Q: Determine the clearance between 10 m steel railroad rails. The lowest temperature considered is 16 C…
A: Given, Length of steel railroad rails,L=10mCoefficient of thermal expansion of steel…
Q: A resistance, wire strain gauge with a gauge factor of 3 is bonded to a steel structural e subjected…
A: Data given- Stress = 200 × 106 N/m2 Gf = 3 Esteel = 400 × 109 GN/m2
Q: 1. Use suitable sketches to describe the principle of operation of a resistance strain gauge. 2.…
A: Givenlength=2mchange of resistance=0.2×10-10Ωgauge factor=1.5resistivity=ρ=1.83×10-8Ωm
Q: Two large containers A and B of the same size are filled with different fluids. The fluids in…
A:
Step by step
Solved in 2 steps with 2 images
- A thermometer reads 90C initially and is placed in a room of temperature 21C. After 2 minutes, the thermometer reads 60C. Determine when will the thermometer reads the room temperature.Two vessels of different shape and sizes are connected by means of a pipe with a valve. Vessel A has a diameter of 4 ft and the length is 1.8 m at the given pressure gauge of 1476.4 in Hg and temperature of 82°F. Another vessel spherical in shape contains the same gas at 15,000 torr gauge and 18°C. The valve is opened and when the properties have been determined, it is found out that the gauge pressure is 35.7 kgf/cm2 and the temperature is 21°C. If the barometric pressure is 755 mm Hg, find the following: Volume of Vessel A in in3 Pressure at Vessel A in psia Temperature at Vessel A in °R Pressure at Vessel B in psiaTwo vessels of different shape and sizes are connected by means of a pipe with a valve. Vessel A has a diameter of 4 ft and the length is 1.8 m at the given pressure gauge of 1476.4 in Hg and temperature of 82°F. Another vessel spherical in shape contains the same gas at 15,000 torr gauge and 18°C. The valve is opened and when the properties have been determined, it is found out that the gauge pressure is 35.7 kgf/cm2 and the temperature is 21°C. If the barometric pressure is 755 mm Hg. Question: What is the diameter of the spherical tank in inches if the gas is carbon dioxide?
- Two vessels of different shape and sizes are connected by means of a pipe with a valve. Vessel A has a diameter of 4 ft and the length is 1.8 m at the given pressure gauge of 1476.4 in Hg and temperature of 82°F. Another vessel spherical in shape contains the same gas at 15,000 torr gauge and 18°C. The valve is opened and when the properties have been determined, it is found out that the gauge pressure is 35.7 kgf/cm2 and the temperature is 21°C. If the barometric pressure is 755 mm Hg, find the following: Volume of Vessel A in in3 Pressure at Vessel A in psia Temperature at Vessel A in °R Pressure at Vessel B in psia Temperature at Vessel B in °R Pressure of the gas when mixed in psia Temperature of the gas when mixed in °R Atmospheric pressure in psi Main Question: What is the diameter of the spherical tank in inches if the gas is carbon dioxide?Three parallel springs have stiffness constant of 100 N/m each. Determine the spring stiffness equivalent of the springs. 300 N/m 0.01 N/m 100 N/m 33.3 N/mA steel pipe (outside diameter 100 mm) is covered with two layers of insulation. The inside layer, 40 mm thick, has a thermal conductivity of 0.07 W/(m K). The outside layer, 20 mm thick, has a thermal conductivity of 0.15 W/(m K). The pipe is used to convey steam at a pressure of 600 kPa. The outside temperature of insulation is 24°C. If the pipe is 10 m long, determine the following, assuming the resistance to conductive heat transfer in steel pipe and convective resistance on the steam side are negligible: a. The heat loss per hour. b. The interface temperature of insulation.
- What will be the rise in temperature in 30 minutes of a block of copper of 500-gram mass if it is joined to a cylindrical copper rod 20 cm long and 3.0 mm in diameter when a temperature difference of 80 degree Celsius is maintained between ends of the rod? The thermal conductivity of copper is 1.02 cal/cm2-sec-°C/cm (neglect heat losses). Please include FBDA thermometer having a time constant of 0.2 min is placed in a temperature bath, and after the thermometer comes to equilibrium with the bath, the temperature of the bath is increased linearly with time at a rate of l0 C/min. What is the difference between the indicated temperature and the bath temperature (a) 0.1 min, (b) 1.0 min after the change in temperature begins?Two cables connected in C are loaded as shown in the figure. Determine the range of Q values so that the voltage does not exceed 60N on any of the cables. Consider the load P, in N, the load P equal to 36 N.
- The block in the drawing has dimensions L0×2L0×3L0,where L0 =0.5 m. The block has a thermal conductivity of 300 J/(s·m·C˚). In drawings A, B, and C, heat is conducted through the block in three different directions; in each case the temperature of the warmer surface is 36 ˚C and that of the cooler surface is 6 ˚C Determine the heat that flows in 6 s for each case.Q4. Two long rods of the same diameter, one of brass(k= 85 W/mK) and the other of copper (k=375 W/mK) have one of their ends inserted in a furnace and the other ends exposed to the same atmosphere. At a distance of 105mm away from the furnace, the temperature of the brass rod is 120' C. Find the distance from the furnace in which the copper rod have the same temperature.wo spherical vessels of different sizes contain the same gas and are connected by means of a pipe with a valve. Sphere A has a diameter of 5 foot at the given pressure gauge of 50 kgf/cm2. Sphere B contains the same gas at 20 kgf/cm² gauge. The valve is opened and when the properties have been determined, it is found out that the gauge pressure is 36 kgf/cm2. The temperature at the two vessels before and after opening the valve is maintained at 21.1°C. If the barometric pressure is 750 torr and the gas inside the sphere is oxygen, find the following: 1. The volume of sphere A in in. 2. The pressure of sphere A in psia. 3. The temperature of sphere A in R. 4. The pressure at sphere B in psia. 5. Temperature at sphere B in F. 6. The pressure of the gas when mixed in psia. 7. The temperature of the gas when mixed in K. 8. The atmospheric pressure in psi. 9. The diameter of Sphere B. 10. The total mass of the gas after opening the valve