Explain lighting scheme to be designed for each of the following (i) operation theatre in hospital (ii) general ward in hospitals.

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

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Explain the following troubles and related remedies in an ultrasonic flow meter: (i) Meter does not show reading (ii) Meter shows less value of flow measured (iii) Meter shows a high value of flow measured.

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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 following wiring systems: (i) Concealed wiring (ii) Metal conduit wiring.

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

Explain the following energy conservation technique: i) Controlling I²R losses ii) Balancing phase current.
Answer : ### i) **Controlling I²R Losses** **I²R losses** refer to the power loss that occurs in electrical conductors (like wires) due to their resistance. This loss happens because when ... we ensure that the electrical system runs efficiently, with minimal losses and risks of overheating or damage....

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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.

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.
Answer : As per **ISI (Indian Standards, IS: 3646 Part 2)** recommendations for lighting in residential buildings, the **illumination level** (also called **lux level**) required for different working areas is given ... while reading or writing.)_ Let me know if you want a simple table or diagram for this....

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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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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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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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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 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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Define the following terms with respect to protective relays: i) Relay time ii) Reset current iii) Plug setting multiplier iv) Time setting multiplier.

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Define the following terms related to circuit breaker: i) Breaking Capacity ii) Making Capacity iii) Short time rating iv) Normal current rating.

Define the following terms related to circuit breaker: i) Breaking Capacity ii) Making Capacity iii) Short time rating iv) Normal current rating.
Answer : Here's a simple explanation of each of the terms related to circuit breakers: 1. **Breaking Capacity**: This is the maximum fault current that a circuit breaker can ... help ensure that circuit breakers can protect electrical circuits from damage caused by overcurrent or fault conditions....

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Define the following terms related to CB: i) Rated normal current ii) Rated breaking current iii) Short time rating iv) Symmetrical breaking current.

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Write one example of each type: (i) Active transducer (ii) Primary transducer (iii) Electrical transducer (iv) Digital transducer.

Write one example of each type: (i) Active transducer (ii) Primary transducer (iii) Electrical transducer (iv) Digital transducer.
Answer : Here are examples for each type of transducer: 1. **Active Transducer**: - **Example**: **Thermocouple** - **Explanation**: An active transducer generates an electrical ... in converting real-world physical signals into measurable outputs, whether they are electrical, digital, or otherwise!...

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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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Explain the general principles employed in the design of street lighting.

Explain the general principles employed in the design of street lighting.
Answer : Designing street lighting is an important task that ensures public safety, energy efficiency, and aesthetic appeal. Here are the general principles involved in the design of street lighting: ... provide enough light to ensure visibility and security while minimizing costs and environmental impact....

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Prepare the general audit report format of electrical installation of concert hall/theatre.

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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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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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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.

State functions of the following parts of d.c motor: (i) Pole shoe (ii) Commutator (iii) Brushes (iv) Yoke.
Answer : Here are the functions of the given parts of a DC motor: ### 1. **Pole Shoe** - **Function**: The pole shoe is part of the stator and helps distribute the magnetic field ... a vital role in the operation of a DC motor, working together to produce continuous and controlled rotational movement....

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

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Define the following terms: i) Luminous intensity ii) Luminous flux.

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

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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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A uniform illumination of 150 lux is to be obtained on the floor of a room measuring 15m x 15m by arranging electric lights suitably. Calculate the number of lamps and wattage of each lamp if lamp efficiency is 20 lumens/watt. Assume and write suitable values of constants required for this calculation.

A uniform illumination of 150 lux is to be obtained on the floor of a room measuring 15m x 15m by arranging electric lights suitably. Calculate the number of lamps and wattage of each ... lamp efficiency is 20 lumens/watt. Assume and write suitable values of constants required for this calculation.

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Describe the operation of servo stabilizer and lighting transformer with regards to energy conservation in lighting.

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

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

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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 with diagram: i) Topping cycle type of cogeneration ii) Bottoming type of cogeneration.

Explain with diagram: i) Topping cycle type of cogeneration ii) Bottoming type of cogeneration.
Answer : ### Cogeneration Systems Cogeneration is the process of simultaneously producing electricity and useful heat from the same energy source. This process can be done in two main ways: **Topping ... Both systems enhance efficiency by utilizing both electricity and heat from the same energy input....

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