Homework Answers
Based on the standards of "Electrical wiring of the cables" the sheath has to be removed so has to provide the conducting joints in the housing. The length of the sheath that has to be removed is based on the length of the sockets in which conducting joints are made. Approximately the length of the sheath is to be removed is around 5 inches.
Correct answer : Option C
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2. Approximately what length of sheathing should be removed from a cable before the cable is...
Identify the element which makes the following scenario INCORRECT 11. An electrician is testing a switch using a mul...
Identify the element which makes the following scenario INCORRECT 11. An electrician is testing a switch using a multimeter as an ohmmeter. The the is not installed. First, the electrician connects the two leads of the meter to two terminals of the switch where the power conductors would be con nected it the switch were installed. The switch is in the OFF position, and the meter shows maximum resistance. Then, the electrician opens the switch to the ON position, and...
116.Which tool is used to remove the insulating jacket from a cable? A. Cable stripper B....
116.Which tool is used to remove the insulating jacket from a cable? A. Cable stripper B. Razor blade C. Kevlar scissors D. Miller tool 117. When cutting a new cable, how much extra length should be cut to allow for attaching the connector? A. 1.5 inches for each connector B. 6 inches for each connector C. 2 inches for each connector D. 3 inches for each connector 118. What's the maximum recommended horizontal wall plate spacing? A. 10 ft. B....
dwelling un 4. Type NM-B Cable enters a metal device box and is secured by a cable clamp at the bottom of the box....
dwelling un 4. Type NM-B Cable enters a metal device box and is secured by a cable clamp at the bottom of the box. The cable is installed so the cable jacket extends "1/4 in. (6 mm beyond the cable clamp and free conductors begin at the end of the cable jacket a shown in Figure 1.39. If the device box has a depth of 3.5 in. (90 mm), the minimum permitted length of free conductor in this box is...
Consider a cylindrical cable with a hanging weight suspended from it. When the mass is removed,...
Consider a cylindrical cable with a hanging weight suspended from it. When the mass is removed, the length of the cable is found to be l0 = 4.53 m. After the mass is added, the length is remeasured and found to be l1 = 5.46 m. Determine Young's Modulus Y in N/m2 for the steel cable if the weight has a mass m = 85 kg and the cable has a radius r = 0.045 m. If we were to...
10. At 2 MHz a cable has an attenuation constant of alpha=0.05 Nepers/meter. At the transmitting...
10. At 2 MHz a cable has an attenuation constant of alpha=0.05 Nepers/meter. At the transmitting end, I connect the line to a 5 volt, 2 MHz, sine wave. Answer all of the following questions A. What is the attenuation constant of the cable in dB/km? B. How far from the source do I have to go, before I notice the amplitude of the signal has dropped to 1 volt? C. At what velocity does the signal move down the...
Coaxial Cable A has twice the length, twice the radius of the inner solid conductor, and...
Coaxial Cable A has twice the length, twice the radius of the inner solid conductor, and twice the radius of the outer cylindrical conducting shell of coaxial Cable B. What is the ratio of the inductance of Cable A to that of Cable B? a. 4ln2 O b.2 ?. o d. 2In2 e.21n4
A cylindrical piece of steel has a diameter of 50 mm and a length of 200...
A cylindrical piece of steel has a diameter of 50 mm and a length of 200 mm. Steel has a density of 7200 kg/m3 a) (3 points) Determine the mass of this piece in kg. 1. b) (3 points) If a 10 mm diameter opening is drilled through the entire length of this cylinder and that portion removed, what is the new mass of this piece? c) (4 points) The 10 mm diameter piece is pulled with a force of...
(10%) Problem 8: Consider a cylindrical cable with a hanging weight suspended from it. 33% Part...
(10%) Problem 8: Consider a cylindrical cable with a hanging
weight suspended from it.
33% Part (a) When the mass is
removed, the length of the cable is found to be
l0 = 4.55 m. After the mass is added,
the length is remeasured and found to be l1 =
5.21 m. Determine Young's Modulus Y in
N/m2 for the steel cable if the weight has a mass
m = 65 kg and the cable has a radius r =...
An aluminum cable with cross-sectional area 1.50 times 10^-6 m^2 is suspended from the ceiling. A...
An aluminum cable with cross-sectional area 1.50 times 10^-6 m^2 is suspended from the ceiling. A mass is suspended from the free end of the cable to keep the cable straight and at a certain length. If the temperature of the cable is reduced by 10 C degree, by how much should the suspended mass be increased so that the length of the cable remains the same? The coefficient of linear expansion for aluminum is alpha = 23 times 10^-6...
A-C needed (5%) Problem 5: Consider a cylindrical cable with a hanging weight suspended from it....
A-C needed
(5%) Problem 5: Consider a cylindrical cable with a hanging weight suspended from it. 33% Part (a) When the mass is removed, the length the cable is found to be lo- 4.66 m. After the mass is added, the length is remeasured and found to be l,-5.29 m. Determine Young's Modulus Y in N/m for the steel cable if the weight has a mass m 75 kg and the cable has a radius r 0.025 m. Grade Summary...
Identify the element which makes the following scenario INCORRECT 11. An electrician is testing a switch using a multimeter as an ohmmeter. The the is not installed. First, the electrician connects the two leads of the meter to two terminals of the switch where the power conductors would be con nected it the switch were installed. The switch is in the OFF position, and the meter shows maximum resistance. Then, the electrician opens the switch to the ON position, and...
dwelling un 4. Type NM-B Cable enters a metal device box and is secured by a cable clamp at the bottom of the box. The cable is installed so the cable jacket extends "1/4 in. (6 mm beyond the cable clamp and free conductors begin at the end of the cable jacket a shown in Figure 1.39. If the device box has a depth of 3.5 in. (90 mm), the minimum permitted length of free conductor in this box is...
10. At 2 MHz a cable has an attenuation constant of alpha=0.05 Nepers/meter. At the transmitting end, I connect the line to a 5 volt, 2 MHz, sine wave. Answer all of the following questions A. What is the attenuation constant of the cable in dB/km? B. How far from the source do I have to go, before I notice the amplitude of the signal has dropped to 1 volt? C. At what velocity does the signal move down the...
Coaxial Cable A has twice the length, twice the radius of the inner solid conductor, and twice the radius of the outer cylindrical conducting shell of coaxial Cable B. What is the ratio of the inductance of Cable A to that of Cable B? a. 4ln2 O b.2 ?. o d. 2In2 e.21n4
A cylindrical piece of steel has a diameter of 50 mm and a length of 200 mm. Steel has a density of 7200 kg/m3 a) (3 points) Determine the mass of this piece in kg. 1. b) (3 points) If a 10 mm diameter opening is drilled through the entire length of this cylinder and that portion removed, what is the new mass of this piece? c) (4 points) The 10 mm diameter piece is pulled with a force of...
(10%) Problem 8: Consider a cylindrical cable with a hanging
weight suspended from it.
33% Part (a) When the mass is
removed, the length of the cable is found to be
l0 = 4.55 m. After the mass is added,
the length is remeasured and found to be l1 =
5.21 m. Determine Young's Modulus Y in
N/m2 for the steel cable if the weight has a mass
m = 65 kg and the cable has a radius r =...
An aluminum cable with cross-sectional area 1.50 times 10^-6 m^2 is suspended from the ceiling. A mass is suspended from the free end of the cable to keep the cable straight and at a certain length. If the temperature of the cable is reduced by 10 C degree, by how much should the suspended mass be increased so that the length of the cable remains the same? The coefficient of linear expansion for aluminum is alpha = 23 times 10^-6...
A-C needed
(5%) Problem 5: Consider a cylindrical cable with a hanging weight suspended from it. 33% Part (a) When the mass is removed, the length the cable is found to be lo- 4.66 m. After the mass is added, the length is remeasured and found to be l,-5.29 m. Determine Young's Modulus Y in N/m for the steel cable if the weight has a mass m 75 kg and the cable has a radius r 0.025 m. Grade Summary...
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