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

Describe the following energy conservation techniques in lighting system: i) replacing lamp source ii) using light control gear.
Answer : Here's a simple breakdown of the two energy conservation techniques in a lighting system: ### 1. **Replacing Lamp Source** Replacing the lamp source refers to swapping out older, ... can be significantly reduced. This helps in cutting down electricity costs and promoting sustainable energy use....

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State significance of earthing. Draw and explain pipe earthing. State the values of earth resistances for: (i) Substation (ii) Residential wiring (iii) H.T. Line (iv) L.T. Line.

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Describe how the following measurements can be made with the use of CRO: (i) Voltage measurement (ii) Time period measurement

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State the use of following: (i) Screw driver (ii) Nose pliers (iii) Wire gauge (iv) Test lamp.

State the use of following: (i) Screw driver (ii) Nose pliers (iii) Wire gauge (iv) Test lamp.
Answer : Sure! Here's a simple explanation of each tool and its use: 1. **Screwdriver**: A screwdriver is a tool used for turning screws to fasten or loosen them. It typically has a handle ... or wire has current. Each of these tools plays a crucial role in everyday electrical and electronics work!...

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Define the following terms: (i) Average demand (ii) Load factor (iii) Plant capacity factor (iv) Plant use factor

Define the following terms: (i) Average demand (ii) Load factor (iii) Plant capacity factor (iv) Plant use factor
Answer : Here are the definitions of the terms: 1. **Average Demand**: It refers to the average amount of electricity or power consumed over a specific period, usually measured in ... ] These terms are important to evaluate the efficiency and performance of power plants and electrical systems....

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Explain the concept of the following terms: (i) Connected load (ii) Maximum demand

Explain the concept of the following terms: (i) Connected load (ii) Maximum demand
Answer : Sure! Here's a simple explanation of both terms: ### 1. **Connected Load:** - **Definition:** The *connected load* refers to the total electrical power (in kilowatts, kW or kilovolt- ... appliances run simultaneously at full capacity. Let me know if you'd like to dive deeper into these!...

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Explain with the help of a neat diagram the following methods of speed control for a DC series motor: (i) Field diverter method. (ii) Tapped field method.

Explain with the help of a neat diagram the following methods of speed control for a DC series motor: (i) Field diverter method. (ii) Tapped field method.
Answer : ### Speed Control of DC Series Motor DC series motors are commonly used in applications where the motor needs to run at varying speeds, such as in cranes, electric trains, and ... given armature current, but they come with different complexities and impacts on the overall motor performance....

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Explain the following energy conservation technique: i) Controlling I²R losses ii) Balancing phase current.

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Give the specification of a three-phase transformer as per IS : 1180 (Part I).

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Draw and explain the use of: (i) Combination plier (ii) Tester (iii) Wire Striper (iv) Hammer.

Draw and explain the use of: (i) Combination plier (ii) Tester (iii) Wire Striper (iv) Hammer.
Answer : Here's an explanation and description of the use of each tool: ### (i) **Combination Pliers** - **Image Description:** Combination pliers are typically a tool with a pair of jaws that can ... electrical devices or panel boxes. Let me know if you'd like a visual representation of these tools!...

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Explain the function of ELCB and ICDP switch. List two specifications of each.

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Give any two applications for i) Universal motor and ii) Hysteresis motor.

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Select insulating materials for following parts: (i) Insulation between heating element and base plate of electric iron. (ii) Insulation used over copper or aluminium conductor used for making coils. (iii) Transformer bushings. (iv) Insulation between transmission line and pole.
Answer : Here are the insulating materials typically used for each of the given applications: 1. **Insulation between heating element and base plate of electric iron**: ** ... on their insulating properties, heat resistance, dielectric strength, and ability to withstand environmental conditions....

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Name the material used and the sensitivity of the following thermocouple type: (i) J (ii) K (iii) R (iv) S.

Name the material used and the sensitivity of the following thermocouple type: (i) J (ii) K (iii) R (iv) S.
Answer : Here are the materials used and the sensitivity of the given thermocouple types: 1. **Type J**: - **Materials Used**: Iron (Fe) for the positive leg and Constantan (Copper-Nickel alloy ... with Type K covering a wide range and Types R and S being more suitable for high-temperature applications....

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Convert the following Boolean equation to standard SOP form and implement using NAND-NAND logic: (i) y = A'B'C' + ABC'D' + A'C'D' (ii) y = PQ + P'QR + PQR.

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Define the following terms (i) lux and (ii) lumens.

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State suitable single phase motor for following applications: (i) Table fan (ii) Mixers and Grinders

State suitable single phase motor for following applications: (i) Table fan (ii) Mixers and Grinders
Answer : For the given applications, here are the suitable single-phase motors: 1. **Table Fan**: **Suitable Motor**: **Shaded Pole Motor** - **Reason**: Shaded pole motors are ... running at high speeds, which is ideal for the heavy load and high-speed operation required in mixers and grinders....

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What are the main components of an electrical wiring system?

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State the function of following parts in Induction motor: (i) Stator (ii) Sliprings

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State the function of following parts in Induction motor. (i) Stator (ii) Sliprings

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Select the illumination level required as per ISI for the following working planes in residential buildings (i) Kitchen sink (ii) Staircase (iii) Dining room (iv) Study room.

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Select illumination level required as per ISI for the following working planes in residential building (i) kitchen (ii) living room (iii) dining room (iv) study room.

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Enlist types of electrical wiring systems. Explain casing and capping type wiring system.

Enlist types of electrical wiring systems. Explain casing and capping type wiring system.
Answer : ### Types of Electrical Wiring Systems Electrical wiring systems are used to safely transmit electrical energy throughout a building or structure. There are several types of wiring systems, each suited to ... it is less suitable for areas with high humidity or where wires need to be concealed....

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Give one application of (i) Mineral oil (ii) Varnish (iii) Synthetic oil (iv) Vegetable oil.

Give one application of (i) Mineral oil (ii) Varnish (iii) Synthetic oil (iv) Vegetable oil.
Answer : Here's an application for each: 1. **Mineral Oil** **Application:** **Insulating Oil in Transformers** Mineral oil is widely used as an insulating and cooling medium ... diesel. It can be processed into biodiesel by a chemical process called transesterification and used in diesel engines....

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Give any four selection criteria for: (i) Distribution transformer (ii) Power transformer.

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Define the following ratings of a motor: (i) Horsepower rating (ii) Short-time rating

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State the meaning of the following: (i) Sensitivity (ii) Deflecting torque

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State two insulators of following types along with their areas of application: (i) Class A (ii) Class E (iii) Class H.

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Name any two applications of following gases. (i) Nitrogen (ii) Hydrogen (iii) Sf6 (iv) Air.

Name any two applications of following gases. (i) Nitrogen (ii) Hydrogen (iii) Sf6 (iv) Air.
Answer : Here are two applications for each of the gases: 1. **Nitrogen (N₂)**: - **Inert atmosphere for chemical reactions**: Nitrogen is used to provide an inert atmosphere for ... used in various industrial applications, including in pneumatic tools, air brakes in vehicles, and air compressors....

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State functions of the following parts of d.c motor: (i) Pole shoe (ii) Commutator (iii) Brushes (iv) Yoke.

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Describe the function of the following pins of 8051: (i) PSEN (ii) RESET (iii) ALE (iv) EA.

Describe the function of the following pins of 8051: (i) PSEN (ii) RESET (iii) ALE (iv) EA.
Answer : Here's a simple explanation of the function of the following pins in the 8051 microcontroller: ### 1. **PSEN (Program Store Enable)**: - **Function**: The PSEN pin is used to enable the ... **ALE**: Latches the low-order address. - **EA**: Selects between internal and external program memory....

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Draw symbol of following: i) Earth Switch ii) Lightning arrester iii) Circuit breaker v) Isolator

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Define the following terms. (i) Precision (ii) Drift (iii) Resolution (iv) Back lash

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Define the following terms related to logic families: (i) Noise Margin (ii) FAN-OUT (iii) Propagation delay (iv) Power dissipation.

Define the following terms related to logic families: (i) Noise Margin (ii) FAN-OUT (iii) Propagation delay (iv) Power dissipation.
Answer : Here are the definitions of the terms related to logic families: ### (i) **Noise Margin** Noise margin is the measure of how much noise a logic gate or circuit can tolerate ... concepts are critical for understanding how logic circuits perform and how to optimize them for different applications....

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