Explain the meaning of following terms: i) MCB ii) Socket outlet iii) Neutral iv) Fuse-link

Explain the meaning of following terms: i) MCB ii) Socket outlet iii) Neutral iv) Fuse-link
by

1 Answer

Answer :

i) MCB:  Miniature circuit breaker operates automatically at the time of fault or over load. And it is used for the protection of electrical installation. They are available from 0.5 A to 100 Amps. They can be single pole, Double pole or three poles 


 ii) Socket outlet: To give the supply to the load by using supply pins and also provided in electrical installation for adopting or connecting home appliances


iii) Neutral: Neutral is return path of supply system and it is a brass terminal, which is fixed on porcelain base and has tapped screws on both ends so that neutral from supply system is received at one end and it is supplied from other end. 


iv) Fuse -link: Fuse-link melts automatically at the time of fault or over load. Fuse must be replaced after the fault.

by

Related questions

Write applications of each of the following:(i) Fuse (ii) MCB (iii) MCCB.

Description : Write applications of each of the following:(i) Fuse (ii) MCB (iii) MCCB.

Last Answer : i) Applications of fuse:  * Used in domestic installations to provide short circuit protection.  * Used in commercial / Industrial installations to provide overload and short circuit protection.  * Used in ...  * Rectifiers panels,  * U.P.S, Electronic equipment,  * Motors,  * Furnaces

State the function of : i) MCCB ii) ELCB iii) MCB iv) Switch.

Description : State the function of : i) MCCB ii) ELCB iii) MCB iv) Switch. 

Last Answer : i) MCB: Provide short circuit protection & over load protection to electrical loads.  ii) ELCB: Provides protection by detecting the unsafe magnitudes leakage currents flowing to earth and disconnecting ... rating.  iv) Switch: Make and break the electrical connection to the load manually.

State any two advantages of MCB over Fuse. State the standard specifications of MCB available in the market.

Description : State any two advantages of MCB over Fuse. State the standard specifications of MCB available in the market.  

Last Answer : Following advantages of MCB over Fuse: 1. No need of replacement of fuse wire. 2. Manually restore of supply is simple. 3. Fault understanding by visual inspection 4. More safe than fuse The standard specifications of ... 6A, 10A,16A,20A, 25A, 30A, 32A, 40A, 50A, 60A and 63A 6. 250V and 450 v

Explain MCB and ELCB with connection diagram supplying single phase load.

Description : Explain MCB and ELCB with connection diagram supplying single phase load. 

Last Answer : OR OR Explanation: * MCB provides short circuit protection. * MCB provides overload protection * ELCB provides earth fault protection. * MCB is in series with ... occurs, the ELCB cuts off the power within the time of 0.1 sec. automatically to protect the personnel. 

State the types of protections provided by MCB.

Description : State the types of protections provided by MCB. 

Last Answer : The types of protections provided by MCB: 1. MCB provides short circuit protection. 2. MCB provides overload protection

What is MCB?

Description : What is MCB?

Last Answer : MCB is a miniature circuit breaker. MCB is used for overcurrent protection. MCB have low rating as compared to MCCB. MCB have thermal trip unit and magnetic trip unit. MCB can also be ... faster as compared to thermal trip unit it disconnect very quickly and used for short circuit protection.

Outlet for anger?

Description : Outlet for anger?

Last Answer : Just try some exercise. It should get rid of a bunch of energy and make you less likly to want to hit someone. Also it might help clear your mind. I reccomend running or weight lifting.

How to Ground an Outlet

Description : How to Ground an Outlet

Last Answer : How to Ground an Outlet The industry standard for electrical outlets is that they must be grounded. On older homes and appliances, electrical outlets installed on the wall may not be grounded at all ... you can replace the old-fashioned electrical system in your home and replace it with safe ones.

Socket Plugs

Description : Socket Plugs

Last Answer : You should be careful when plugging in electronic devices in your car's socket plug or cigarette lighter. Some car batteries have 13.5 volts, so laptops, audio players and mobile phones might get ... devices are firmly plugged in because they can vibrate out of the sockets while you are driving.

How to Remove a Broken Light Bulb from Socket

Description : How to Remove a Broken Light Bulb from Socket

Last Answer : How to Remove a Broken Light Bulb from Socket Removing a broken light bulb is dangerous if you don't apply precautionary measures. Its jagged edges can cut your fingers with ease. In addition, the ... to hold the remaining pieces of the bulb together, so you can easily twist it off the socket.

Blackt Electrotech 230V 24x7 Energy Saving Socket Type Digital Programmable Plastic Electronic Timer (White)

Description : Blackt Electrotech 230V 24x7 Energy Saving Socket Type Digital Programmable Plastic Electronic Timer (White)

Last Answer : Buy from amazon: https://amzn.to/2SUTSdv Buy: http://bit.ly/2ZqlAkS

What happens when a neutral wire touches a phase wire ?

Description : What happens when a neutral wire touches a phase wire ?

Last Answer : Maximum current flow due to Short circuit, limited value of fuse will burn else apparatus and conductor will be damaged.

The magnetic neutral plane shifts in a dc machine

Description : The magnetic neutral plane shifts in a dc machine (A) in the direction of motion of motor (B) in the direction of motion of generator (C) due to increase in the field flux (D) cause reduction of flash over between commutator segments

Last Answer : The magnetic neutral plane shifts in a dc machine in the direction of motion of generator

To protect the power transformer (Y-Y with neutral grounded) against fault, what type of connection do the CTs have ?

Description : To protect the power transformer (Y-Y with neutral grounded) against fault, what type of connection do the CTs have ?

Last Answer : To protect the power transformer (Y-Y with neutral grounded) against fault, what type of connection do the CTs have ? Δ-Δ connection

In a three-phase supply floating neutral is undesirable because it way give rise to?

Description : In a three-phase supply floating neutral is undesirable because it way give rise to?

Last Answer : In a three-phase supply floating neutral is undesirable because it way give rise to unequal line voltages across the load.

In a D.C. generator the magnetic neutral axis coincides with the geometrical neutral axis, when?

Last Answer : In a D.C. generator the magnetic neutral axis coincides with the geometrical neutral axis, when there is no load on|he generator.

Ungrounded neutral transmission system is not recommended because of system?

Last Answer : Ungrounded neutral transmission system is not recommended because of system insulation being overstressed due to over voltages, insulation overstress may lead to failure and subsequent phase to phase faults, being inadequately protected against ground fault.

If we conect a two bulbs in series And if we give double phase without neutral then bulb will glow or not??

Last Answer : Due to no potential difference between the ends of the circiut there is no existance of current 

Which color wire is neutral?

Description : Which color wire is neutral?

Last Answer : Black but I think it depends with the place.

State functions of ; i) Cable box ii) Guard wire iii) Shackle insulator iv) Stay wire used in service connection

Description : State functions of ; i) Cable box ii) Guard wire iii) Shackle insulator iv) Stay wire used in service connection

Last Answer : i) Function of Cable box: To hold and inspect incoming and outgoing terminals  ii) Function of Guard wire : A grounded conductor placed beneath an overhead transmission line in order to ground ... in service connection: To give mechanical Support to pole, line and prevent leakage current if any

Explain the function of : (i) DB (ii) Socket (iii) Cable (iv) Switch

Description : Explain the function of : (i) DB (ii) Socket (iii) Cable (iv) Switch

Last Answer : i) Function of DB: ( Distribution Board or Box) :  * To distribute the load and provide the sub circuits in lighting load and power load. ii) Function of Socket:  * Availability of supply for connecting ... or load to carry the current. iv) Function of Switch: * To make the supply ON and OFF. 

Define following terms (i) Kinematic link (ii) Kinematic pair (iii) Kinematic chain (iv) Mechanism (v) Machine (vi) Inversion

Description : Define following terms (i) Kinematic link (ii) Kinematic pair (iii) Kinematic chain (iv) Mechanism (v) Machine (vi) Inversion

Last Answer : (i) Kinematic link: Each part of a machine, which moves relative to some other part, is known as a kinematic link.  (ii) Kinematic pair: The two links or elements of a machine, ... obtaining different mechanisms by fixing different links in a kinematic chain is known as inversion of the mechanism.

Why link is provided in neutral of an ac circuit and fuse in phase of ac circuit?

Description : Why link is provided in neutral of an ac circuit and fuse in phase of ac circuit?

Last Answer : Link is provided at a Neutral common point in the circuit from which various connections are taken for the individual control circuit and so it is given in a link form to withstand high Amps. ... So if any malfunction happens the fuse connected in the particular control circuit alone will blow off.

Why link is provided in neutral of an ac circuit and fuse in phase of ac circuit?

Description : Why link is provided in neutral of an ac circuit and fuse in phase of ac circuit?

Last Answer : A:Link is provided at a Neutral common point in the circuit from which various connection are taken for the individual control circuit and so it is given in a link form to withstand high Amps ... .So if any malfunction happen the fuse connected in the particular control circuit alone will blow off.

Why link is provided in neutral of an ac circuit and fuse in phase of ac circuit?

Description : Why link is provided in neutral of an ac circuit and fuse in phase of ac circuit?

Last Answer :  Link is provided at a Neutral common point in the circuit from which various connections are taken for the individual control circuit and so it is given in a link form to withstand high Amps.  ... Supply is on than due to open or break Neutral Voltage is increase and equipment may be damage.

Classify the soil according to IS Classification and explain the meaning of following terms i) GW ii) SP iii) ML iv) SM-ML

Description : Classify the soil according to IS Classification and explain the meaning of following terms i) GW ii) SP iii) ML iv) SM-ML

Last Answer : As per IS classification soil is broadly divided into three divisions: 1. Coarse grained soil: In these soils, more than half the total material by mass is larger than 75 micron IS ... medium compressibility. iv) SM-ML - boundary classification between coarse grained and fine grained soils. 

State the function of (i) Neutral section, (ii) Section insulator, (iii) Un-insulated overlap, (iv) Insulated overlap.

Description : State the function of (i) Neutral section, (ii) Section insulator, (iii) Un-insulated overlap, (iv) Insulated overlap.

Last Answer : i) Neutral section: Passing of pantograph under insulated overlap will cause short circuit between two phases of the supply system, damaging OHE & pantograph. To avoid this bridging of two ... belong to two elementary sections. Located at feeding posts, sub sectioning posts and booster sections.

Give purpose and location of i) Uninsulated overlap. ii) Insulated overlap. iii) Neutral section. iv) Section insulator.

Description : Give purpose and location of i) Uninsulated overlap. ii) Insulated overlap. iii) Neutral section. iv) Section insulator.

Last Answer : Ans: i) Insulated overlap: To isolate for operation and maintenance of OHE if two lengths of OHE belong to two elementary sections. Located at feeding posts, sub sectioning posts and booster sections.  ... elementary section. Located at cross over from one track to other, from main line to siding.

Explain the use of the following components in electrical wiring system and give specification of each: (i) MCB (ii) ELCB

Description : Explain the use of the following components in electrical wiring system and give specification of each: (i) MCB (ii) ELCB

Last Answer : i) MCB (Miniature Circuit Breaker)  * MCB provides short circuit protection. * MCB provides overload protection * ELCB provides earth fault protection. * MCB is in series with load and ELCB is ... The low sensitivity ELCB are used for electrical machine the rating is in between the 3A to 10 A

Explain the terms: i. Average velocity  ii. Instantaneous velocity  iii. Average speed  iv. Instantaneous speed

Description : Explain the terms: i. Average velocity  ii. Instantaneous velocity  iii. Average speed  iv. Instantaneous speed

Last Answer : Explain the terms: i. Average velocity ii. Instantaneous velocity iii. Average speed iv. Instantaneous speed

Define and explain the following terms:  i. Zero vector (Null vector)  ii. Resultant vector  iii. Negative vectors iv. Equal vectors 

Description : Define and explain the following terms:  i. Zero vector (Null vector)  ii. Resultant vector  iii. Negative vectors iv. Equal vectors 

Last Answer : Define and explain the following terms: i. Zero vector (Null vector) ii. Resultant vector ... vectors iv. Equal vectors v. Position vector

Explain any five of the following terms (in not more than four lines each): (i) Osmosis Glycolysis (ii) Phototaxis (iii) Transpiration (iv) Saponification (v) Emulsion

Description : Explain any five of the following terms (in not more than four lines each): (i) Osmosis Glycolysis (ii) Phototaxis (iii) Transpiration (iv) Saponification (v) Emulsion

Last Answer : (i) Osmosis: osmosis, in botany and chemistry, the flow of one constituent of a solution through a membrane while the other constituents are blocked and unable to pass through the (selecyively permeable membrane ... in a second liquid with which the first will not mix: an emulsion of oil in vinegar

Explain the following terms : (i) Electrophoresis, (ii) Coagulation, (iii) Dialysis (iV) Tyndal Effect

Description : Explain the following terms : (i) Electrophoresis, (ii) Coagulation, (iii) Dialysis (iV) Tyndal Effect

Last Answer : (i) Electrophoresis :- The immigration of colloidal solute towards oppositely charged electrode under an electric potential is called Electrophoresis.  (ii) Coagulation :- The process of settling down ... The scattering of light in colloidal solution by colloidal solute is known as Tyndal effect.

What can I do about a wall switch for an overhead light if the socket doesn't have a neutral wire and the switch does?

Description : What can I do about a wall switch for an overhead light if the socket doesn't have a neutral wire and the switch does?

Last Answer : answer:This doesn't make sense. The ground wire is the bare-naked copper wire that's a little thinner than the others. In addition to a ground wire, if any, there must be two regular insulated wires ... though they can be wired to switch neutral. For lights it shouldn't matter. Does any of this fit?

For carrying out C2C e-Commerce the following infrastructure is essential (i) World Wide Web (ii) Corporate network (iii) Electronic Data Interchange standards (iv) Secure Payment Services (v)Secure electronic communication link connecting businesses a. i and ii b. ii and iv c. i and iii d. i and iv

Description : For carrying out C2C e-Commerce the following infrastructure is essential  (i) World Wide Web  (ii) Corporate network  (iii) Electronic Data Interchange standards  (iv) Secure Payment Services  (v)Secure electronic communication link ... a. i and ii b. ii and iv c. i and iii d. i and iv

Last Answer : c. i and iii  

For carrying out B2C e-Commerce the following infrastructure is essential (i) World Wide Web (ii) Corporate network (iii) Electronic Data Interchange standards (iv) Secure Payment Services (v) Secure electronic communication link connecting businesses a. i, iv b. i, iii, iv c. ii, iii d. i, ii, iii, iv

Description : For carrying out B2C e-Commerce the following infrastructure is essential  (i) World Wide Web  (ii) Corporate network  (iii) Electronic Data Interchange standards  (iv) Secure Payment Services  (v) Secure electronic communication link ... . i, iv b. i, iii, iv c. ii, iii d. i, ii, iii, iv

Last Answer : a. i, iv

For carrying out B2B e-Commerce the following infrastructure is essential: (i) World Wide Web (ii) Corporate network (iii) Electronic Data Interchange standards (iv) Secure Payment Services (v)Secure electronic communication link connecting businesses a. i, ii, iii b. ii, iii, iv c. ii, iii, iv, v d. i, ii, iii, iv, v

Description : For carrying out B2B e-Commerce the following infrastructure is essential:  (i) World Wide Web  (ii) Corporate network  (iii) Electronic Data Interchange standards  (iv) Secure Payment Services  (v)Secure electronic communication link ... . ii, iii, iv c. ii, iii, iv, v d. i, ii, iii, iv, v

Last Answer : c. ii, iii, iv, v 

With reference to execution of work explain the following: i) Administrative approval ii) Technical sanctions

Description : With reference to execution of work explain the following: i) Administrative approval ii) Technical sanctions 

Last Answer : Administrative approval:  When any government department requires executing a project like network addition or extension work or installation of new project. It requires necessary administrative approval ... designated by government. The sanction given by authority is called technical sanction

.Match the terms in column I with their description in column II and choose the correct option. Column I Column II A. Dominance (i) Many genes govern a single character B. Co-dominance (ii) In a heterozygous organism only one allele expresses itself C. Pleiotropy (iii) In a heterozygous organism both alleles express themselves fully D. Polygenic (iv) A single gene inheritance influences many characters A B C D (a) (iv) (i) (ii) (iii) (b) (iv) (iii) (i) (ii) (c) (ii) (i) (iv) (iii) (d) (ii) (iii) (iv) (i)

Description : .Match the terms in column I with their description in column II and choose the correct option. Column I Column II A. Dominance (i) Many genes govern a single character B. Co-dominance (ii) In a heterozygous organism only one allele ... (i) (ii) (c) (ii) (i) (iv) (iii) (d) (ii) (iii) (iv) (i)

Last Answer : (d) (ii) (iii) (iv) (i)

Describe the following terms: (i) Keyword (ii) Identifier (iii) Variable (iv) Constant

Description : Describe the following terms: (i) Keyword (ii) Identifier (iii) Variable (iv) Constant

Last Answer : (i) Keyword: Keywords are special words in C programming which have their own predefined meaning. The functions and meanings of these words cannot be altered. Some keywords in C Programming are if, while, ... or a string literal. There are enumeration constants as well. Example: 121 234 3.14 

Define the following terms: i) Level line ii) Bench Mark iii) Change point iv) Profile levelling

Description : Define the following terms: i) Level line ii) Bench Mark iii) Change point iv) Profile levelling

Last Answer : i) Level line - It is line lying in a level surface; it is therefore, normal to the plumb line at all points. ii) Bench Mark - These are fixed points or marks of known RL determined with ... the centerline of a proposed ditch or road or the centerline of a natural feature such as a stream bed.

Define the terms i) Fore Bearing, ii) Open traverse, iii) Closing error, iv) Reduced bearing

Description : Define the terms i) Fore Bearing, ii) Open traverse, iii) Closing error, iv) Reduced bearing

Last Answer : i) Fore bearing : The bearing observed in the direction of progress of survey in clockwise manner is called fore bearing  ii) Open traverse : When the first and last survey lines does ... north or south direction in clockwise or anticlockwise manner is known as reduced or quadrantal bearing. 

Defines the terms : i) Survey Station ii) Survey Line iii)Offset iv)Triangulation

Description : Defines the terms : i) Survey Station ii) Survey Line iii)Offset iv)Triangulation 

Last Answer : i) Survey Station : It is the point on ground from which various observations are taken around it. ii) Survey Line : It is the straight line joining two successive survey stations ... iv)Triangulation : The frame work consist of number of connected well conditional triangle is called Triangulation.

Define the following terms: (i) Level surface {ii) Datum line (iii) Reduced level (iv) Axis of telescope

Description : Define the following terms: (i) Level surface {ii) Datum line (iii) Reduced level (iv) Axis of telescope

Last Answer : i)Level Surface : Any surface is parallel to mean spheroidal surface of earth is said to be a level surface. The water surface of still lake is also considered to be level surface. ii) ... an imaginary line passing through the optical Centre of object glass and optical Centre of the eye piece.

Define the following terms: (i) Data abstraction (ii) Class (iii) Dynamic binding (iv) Polymorphism

Description : Define the following terms: (i) Data abstraction (ii) Class (iii) Dynamic binding (iv) Polymorphism

Last Answer : (i) Data abstraction: Abstraction refers to the act of representing essential features without including the background details or explanation. Data abstraction is the process of defining a data type, often ... more than one form at different instances depending on the type or number of arguments. 

Define the following terms related to antennas; (i) Antenna resistance (ii) Directivity (iii) Antenna gain (iv) Power density

Description : Define the following terms related to antennas; (i) Antenna resistance (ii) Directivity (iii) Antenna gain (iv) Power density

Last Answer : Antenna Resistance - The resistance of an antenna has two components: 1. Its radiation resistance due to conversion of power into electromagnetic waves 2. The resistance due to actual losses in the ... the transmitter power divided by the surface area of a sphere (4πR2) at that distance.

Define the following terms: (i) Polarization (ii) Antenna gain (iii)Antenna resistance (iv)Directivity

Description : Define the following terms: (i) Polarization (ii) Antenna gain (iii)Antenna resistance (iv)Directivity

Last Answer : i) Polarization:- It is defined as the direction of electric field vector in the EM wave radiated by the transmitting antenna. ii) Antenna Gain:- Antenna gain is defined as the ratio of ... in only one direction in which the radiation is maximum. That is directivity = Max. directive gain

Define the following terms : (i) absorptivity (ii) reflectivity (iii) transmissivity (iv) emissivity

Description : Define the following terms : (i) absorptivity (ii) reflectivity (iii) transmissivity (iv) emissivity

Last Answer : Absorptivity: It is the fraction of total incident radiation which is absorbed by a body. Reflectivity: It is the fraction of total incident radiation which is reflected by a body.  Transmissivity: It ... total emissive power of a body to emissive power of a black body at the same temperature. 

Suggest the degree of workability in terms of slump for the following: i) Pavements using pavers ii) Canal lining iii) Heavily reinforced sections iv) In-situ piling

Description : Suggest the degree of workability in terms of slump for the following: i) Pavements using pavers ii) Canal lining iii) Heavily reinforced sections iv) In-situ piling

Last Answer : Degree of workability in terms of slump for the following: i) Pavements using pavers: 25-75 mm ii) Canal lining: 70-80 mm iii) Heavily reinforced sections: 50-100 mm iv) In-situ piling: 100-150 mm

Define following terms: i) Economic span ii) Afflux iii) Waterway iv) Free board

Description : Define following terms: i) Economic span ii) Afflux iii) Waterway iv) Free board

Last Answer : i) Economic span: The span for which the total cost of the bridge is minimum is known as economical span of a bridge. ii) Afflux: It is the rise in water surface caused due to the obstruction ... , if any, and the lowest point on the underside of the bridge super structure is called free board.