Description : State the four methods of laying of cable. State precautions while laying of underground cable in the situation : (i) Minimum clearance between cable and water pipe line when running in parallel. (ii) ... is to be laid in the same trench, what should be minimum spacing between two cables ?
Last Answer : (i) Minimum clearance between cable and water pipe line when running in parallel:- 0.5 mtr. (ii) Minimum clearance between cable and water pipe line when running in parallel:- 0.5 mtr ... should be minimum spacing between two cables :- Then minimum 30 cm spacing is provided between 2 cables
Description : An optical fiber cable laid underground has developed a discontinuity at a distance d from the source end. The fault can be located using the instrument (a) Optical spectrum Analyzer (OSA) (b) Optical Time Domain Reflectometer (OTDR) (c) Optical Power Meter (OPM) (d) Laser Diffractometer (LD)
Last Answer : An optical fiber cable laid underground has developed a discontinuity at a distance d from the source end. The fault can be located using the instrument Optical Time Domain Reflectometer (OTDR)
Description : Minimum isolation distance maintained for foundation seed production in Cotton is — m a. 1000 b. 100 c. 50 d. 200
Last Answer : c. 50
Description : State the procedure for laying / installation of underground cable.
Last Answer : 1) Direct laying Cable: or Trench laying method: Procedure: * For laying of a cable trench about 1.5m deep and 0.5m wide is made along the cable route. * A ... over. * Cables laid in this manner are usually plain lead covered because troughing affords good mechanical protection.
Description : What is underground cable ?
Last Answer : An underground cable is one or more field conductors covered by an insulation and protective sheath capable of withstanding the required amount of voltage.
Description : what is the use of bedding on underground cable?
Last Answer : Bedding is the layer above the lead sheath it protects the lead sheath from corrosion that means it gives chemical protection to metallic sheath(lead sheath)
Description : If a power cable and a communication cable are to run parallel the minimum distance between the two, to avoid interference, should be (a) 2 cm (b) 10 cm (c) 50 cm (d) 400 cm
Last Answer : (c) 50 cm
Description : A raft foundation is provided if its area exceeds the plan area of the building by (A) 10 % (B) 20 % (C) 40 % (D) 50 %
Last Answer : Answer: Option D
Description : Pick up the correct statement from the following: (A) The cost of square rooms is less (B) The expenditure on the foundation and roof for the double storeyed building is nearly half of that ... cost of construction of a house may be minimised by restricting the height floors (D) All the above
Description : Suggest relevant type of foundation with sketch for educational building on black cotton soil with justification.
Last Answer : Black cotton soil- Pile foundation. In case the depth of black cotton soil is more, the following type of foundation may be provided 1. Strip or pad foundation 2. Pier foundation with ... of expansive soil. They are bored cast-in-situ concrete piles having bulb shaped enlarged base.
Description : Draw a neat labeled sectional view showing different components of building from foundation to parapet, for a load bearing brick masonry wall.
Last Answer : Draw a neat labeled sectional view showing different components of building from foundation to parapet, for a load bearing brick masonry wall.
Description : State any two functions of foundation of a building.
Last Answer : The functions of foundation are1) To transfer the load of the structure up to the hard strata. 2) To distribute load of the entire structure over a wide spread area. 3) To increase ... To prevent the lateral movement of supporting material To attain a level and firm bed for building operations.
Description : Suggest relevant type of foundation with sketch for a residential building with Marshy soil at greater depth with justification and explanation.
Last Answer : Raft foundation is suitable for a residential building with Marshy soil at greater depth It is suitable where ground is soft, Clayey or marshy having low bearing capacity and where sub soil water ... of thick reinforced concrete slab covering the entire area of the bottom of the structure.
Description : The electrostatic stress in underground cables is (a) same at the conductor and the sheath (b) minimum at the conductor and maximum at the sheath (c) maximum at the conductor and minimum at the sheath (d) zero at the conductor as well as on the sheath (e) none of the above
Last Answer : (c) maximum at the conductor and minimum at the sheath
Description : According to Rankine's formula, the minimum depth of foundation (A) h = (P/W) [(1 - sin )/(1 + sin )]² (B) h = (w/P) [(1 - sin )/(1 + sin )]² (C) h = (P/w) [(1 - sin )/(1 + tan )]² (D) h = (P/w) [(1 - tan )/(1 + tan )]²
Last Answer : Answer: Option A
Description : The minimum depth of foundation in clayey soils is (A) 0.5 m (B) 0.7 m (C) 0.9 m (D) 1.2 m
Last Answer : Answer: Option C
Description : Two columns 50 cm 50 cm and 60 cm 60 cm carry 80 tonnes and 120 tonnes of loads respectively. The centre to centre distance between columns is 5.00 metres. The permissible bearing capacity of the soil is 20 t ... the foundation slab = 7.00 m (C) Area of footing slab = 11.00 m2 (D) All the above
Last Answer : Option D
Description : Why don't we burry power lines underground ?
Last Answer : Because conductor used for power transmission are not insulated and if we do so it create phase to ground fault causing interruptions to supply.
Description : Comcast cable has a virtual monopoly over my building in Arlington, Virginia and use this power to continually raise prices for residents. Is there anything we can do to combat this, and bring in other cable companies to increase competition?
Last Answer : It is up to your landlord and who he signs on with. You can petition your landlord to offer another alternative to residents.
Description : An RG-11/U foam coaxial cable has a maximum voltage standing wave of 52 V and a minimum voltage of 17 V. Find the value of the resistive load. A. 24.59Ω B. Either A or C C. 228.75Ω D. Neither A nor C
Last Answer : B. Either A or C
Description : The minimum frame size required for a CSMA/CD based computer network running at 1 Gbps on a 200m cable with a link speed of 2 × 108m/s is a. 125 bytes b. 250 bytes c. 500 bytes d. None of these
Last Answer : b. 250 bytes
Description : Consider a CSMA/CD network that transmits data at a rate of 100 Mbps (108 bits per second) over a 1 km (kilometre) cable with no repeaters. If the minimum frame size required for this network is 1250 bytes, what is the signal speed (km/sec) in the cable? a. 8000 b. 10000 c. 16000 d. 20000
Last Answer : d. 20000
Description : The minimum dielectric stress in a cable is at (a) armour (b) bedding (c) conductor surface (d) lead sheath
Last Answer : (d) lead sheath
Description : Standard Cable cuts back advertising expenditures to minimum levels and reduces the number of channel members for its industrial cable product. These actions are indicative of a product in the __________ stage of its life cycle? A)introduction B)growth C)maturity D)decline
Last Answer : D)decline
Description : The distance between a generator and its load is 100 feet. What would be the approximate total voltage drop across a two wire supply cable if the current were 5.5 amperes and the resistance of the wire were 2.525 ohms per 1,000 feet? A. 0.5 volts B. 1.38 volts C. 1.90 volts D. 2.77 volts
Last Answer : Answer: D
Description : Which of the following is not a common application of fiber-optic cable? a. Computer networks b. Long-distance telephone systems c. Closed circuit TV d. Consumer TV
Last Answer : d. Consumer TV
Description : The inductance of a coaxial cable with inner radius a and outer radius b, from a distance d, is given by a) L = μd ln(b/a)/2π b) L = 2π μd ln(b/a) c) L = πd/ln(b/a) d) L = 0
Last Answer : a) L = μd ln(b/a)/2π
Description : This is a method of using a Wheatstone brdige to determine the distance from the test point to a fault in a telephone or telegraph line or cable.
Last Answer : varmeter/reactive VA meter
Description : Which of the following is not a common application of fiber-optic cable? ∙ A. computer networks ∙ B. long-distance telephone system ∙ C. closed-circuit TV ∙ D. consumer TV
Last Answer : ∙ D. consumer TV
Description : For a 300-m optical fiber cable with a bandwidth distance product of 600 MHz-km, determine the bandwidth. ∙ A. 5 GHz ∙ B. 1 GHz ∙ C. 2 GHz
Last Answer : C. 2 GHz
Description : It indicates what signal frequencies can be propagated through a given distance of fiber cable. ∙ A. Bandwidth Distance Product ∙ B. Pulse width dispersion ∙ C. Rise time ∙ D. Cutoff frequency
Last Answer : A. Bandwidth Distance Product
Description : Which of the following is not a common application of fiber-optic cable? ∙ a. Computer networks ∙ b. Long-distance telephone systems ∙ c. Closed circuit TV ∙ d. Consumer TV
Description : The minimum depth of building foundations on (A) Sandy soils is 80 cm to 100 cm (B) Clay soils is 90 cm to 160 cm (C) Rocky soils is 5 cm to 50 cm (D) All the above
Description : The minimum thickness of walls built in cement mortar (1 : 6) for a single storey building, is (A) 10 cm (B) 15 cm (C) 20 cm (D) 25 cm
Description : According to National Building Code, the hydrants in water mains is provided at minimum interval of (A) 50 m (B) 60 m (C) 75 m (D) 90 m
Last Answer : Option C
Description : when planting Lilac bushes, what is the distance away from a building?
Last Answer : They grow big and you would not want that blocking windows or doors for safety. I like to keep them 20 ft or more away. They do draw bees and other bugs and birds like to make nests in them.
Description : What is the height of a building when the distance between its angles of elevation which are 29 degrees and 37 degrees is 30 meters on level ground?
Last Answer : Using trigonometry its height works out as 63 meters to thenearest meter.--------------------------------------------------------------------------------------------------------let ... substitute the values of α, β and x in and find theheight:h = (30 m tan 37° tan 29°)/(tan 37° - tan 29°) ≈ 63 m
Description : A building is 120 feet high. at a certain distance away from the building. an observer notices the angle of elevation to the top of the building is 41 degrees. how far is the observer from the base of the building?
Last Answer : 6
Description : Among the greatest achievements of Chandragupta the building of trunk road from Taxila to Pataliputra was very important. The distance of that road is: A. 1,280 km B. 1,281 km C. 1,282 km D. 1,283 km
Last Answer : ANSWER: A
Description : Set-back distance is the distance between (A) Road land boundary and building line (B) Road land boundary and control line (C) Building line and control line (D) Road land boundary and control line