Write any four safety measures and precautions to be followed for a special purpose lamp.

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State any four IE Rules to be followed in respect of safety while working on electrical installation system.

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A workshop measures 10m × 25m. The shop is illuminated by 24 lamps of 200 watts each. The lumen efficiency of each lamp is 15 lumens per watt. Depreciation factor is assumed to be 0.8 and a coefficient of utilization 0.5. Determine the illumination on the working plane.

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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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Write any four design considerations for illumination scheme of industrial premises.

Write any four design considerations for illumination scheme of industrial premises.
Answer : When designing an illumination scheme for industrial premises, there are several factors to consider to ensure safety, efficiency, and comfort for workers. Here are four key design considerations ... help to create an effective, safe, and efficient lighting design for industrial spaces....

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What are the safety precautions for UPS installation?

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What are the safety precautions to take while installing an MCB?

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State any four IE Rules regarding electric safety.

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Write any four merits of cogeneration.

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What are the safety measures for working with inverters?

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Explain the lighting scheme to be designed for each of the following (i) Special ward in hospitals (ii) Dentist’s Cabin.

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State the factors to be considered while selecting a lamp for a particular application.

State the factors to be considered while selecting a lamp for a particular application.
Answer : When selecting a lamp for a particular application, several factors should be considered to ensure optimal performance, energy efficiency, and suitability for the task. Here are the key ... ensuring it meets both functional and aesthetic requirements while being cost-effective and energy-efficient....

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What are the safety precautions when handling LEDs?

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What is the necessary condition for superposition theorem to be applicable in any linear active and bilateral network?

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State any four effects that can be obtained by lighting on stages.

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What are electrical fire safety measures?

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List any four commercial losses and suggest a remedy to overcome it.

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Related to ultrasonic flow meter: (i) Give any two types of it (ii) Write any two specifications (iii) Write two advantages over Rotameter.
Answer : ### (i) Two Types of Ultrasonic Flow Meters: 1. **Transit-Time Ultrasonic Flow Meter**: This type uses the difference in time taken for an ultrasonic signal to travel downstream and upstream. The ... and no disruption to the flow, unlike Rotameters, which need to be integrated into the flow path....

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State any four design considerations for the illumination scheme of a commercial complex.

State any four design considerations for the illumination scheme of a commercial complex.
Answer : When designing the illumination scheme for a commercial complex, there are several factors to consider to ensure the space is well-lit, energy-efficient, and visually comfortable. Here ... space. These considerations ensure a well-lit, efficient, and aesthetically pleasing commercial environment....

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Write any two differences between single-phase and three-phase transformers.

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

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List different transmission line components used for power transmission. (any four)

List different transmission line components used for power transmission. (any four)
Answer : Here are four key components used in power transmission lines: 1. **Conductors**: These are the wires or cables that carry the electrical current from one point to another. They ... components work together to ensure the safe and efficient transmission of electrical power over long distances....

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State any four properties of conductor material used for overhead conductor.

State any four properties of conductor material used for overhead conductor.
Answer : Here are four important properties of conductor materials used for overhead conductors: 1. **High Electrical Conductivity**: The material should allow electric current to pass through it ... conductor. These properties ensure efficient and durable operation of overhead power transmission lines....

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Choose any four tariff schedule to reduce electricity bill of commercial consumer.

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Explain control of a single lamp from four places. Draw the relevant circuit diagram.

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Give a comparison between LED and CFL lamps (Any four points).

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Write a note on electrical safety.

Write a note on electrical safety.
Answer : ### Electrical Safety: A Brief Overview Electrical safety is crucial to prevent accidents such as electric shocks, fires, and equipment damage. It involves practices and precautions taken to avoid ... lives. Always treat electricity with respect, as it can be dangerous if not handled properly....

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Write two factors to be taken into account while designing the flood lighting.

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List out comparisons between CT’s and PT’s (Any four).

List out comparisons between CT’s and PT’s (Any four).
Answer : Here's a comparison between **Current Transformers (CTs)** and **Potential Transformers (PTs)**: ### 1. **Function** - **CT (Current Transformer)**: Measures the electric ... are used to monitor voltage levels, stepping down high voltage to a level suitable for measurement and monitoring....

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Compare core type and shell type transformer on any four parameters.

Compare core type and shell type transformer on any four parameters.
Answer : Core type and shell type transformers differ in their construction and design. Here's a comparison based on four key parameters: ### 1. **Core Construction:** - **Core Type Transformer** ... advantages, and the choice depends on factors like size, strength, and cost for a given application....

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Compare U-tube manometer and well type manometer on any four points.

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List out any four assembler directives and state their functions.

List out any four assembler directives and state their functions.
Answer : Here are four assembler directives along with their functions: 1. **ORG (Origin Directive)** - Function: Specifies the starting address for the next instruction or data in memory. ... the assembly program. - Example: `END` tells the assembler to stop processing further instructions....

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Compare HRC fuse and Circuit breakers as interrupting devices on any four points.

Compare HRC fuse and Circuit breakers as interrupting devices on any four points.
Answer : Sure! Here's a comparison between **HRC fuses** and **circuit breakers** based on four key points: ### 1. **Operation Mechanism:** - **HRC Fuse**: A fuse is a one-time ... single-use. - **Circuit breakers** offer reusability and versatility but may be slower to operate in certain situations....

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State any four types of faults and their causes in electrical power system

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What will be the new resistance of A wire of resistance r is stretched to four times its initial length?

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What will be the new resistance when a wire of resistance R is stretched to four times its initial length?

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What will be the new resistance of a wire of resistance r is stretched to four times its initial length?

What will be the new resistance of a wire of resistance r is stretched to four times its initial length?
Answer : When a wire is stretched, its resistance changes because the length and the cross-sectional area of the wire change. The resistance of a wire is given by the formula: \[ R = \rho \frac{L}{A} \] Where: - \ ... initial resistance of the wire is \( r \), the new resistance will be: \[ R' = 16r \]...

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Can Fourier transform be used for any function?

Can Fourier transform be used for any function?
Answer : Fourier transform can be applied to many functions, but there are some conditions under which it works properly. The basic idea of a Fourier transform is to represent a function as a sum of sine ... too quickly or behave too wildly for the transform to be meaningful. Does that help clarify things?...

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Can the superposition principle be applied to any linear system?

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Explain with the help of a neat diagram the working of a 3-phase autotransformer. Write any two applications.

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What is the special purpose of tunnel diode?

What is the special purpose of tunnel diode?
Answer : A tunnel diode is a type of diode with special properties that make it useful for certain applications in electronics. The main purpose of a tunnel diode is its ability to operate ... , making it suitable for applications in oscillators, amplifiers, and other high-frequency electronic circuits....

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List the special purpose lamps used in photography.

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What is the special purpose of PN junction?

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What is the special purpose of transformer?

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Write any two laws of Boolean algebra. Justify with the help of truth table.

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What are the precautions for Newton's ring?

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Give the specification of a three-phase transformer as per IS 1180 (Part 1) 1989 (any four).

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State any four salient features of a microprocessor-based protection relay. Draw a block diagram of a microprocessor-based overcurrent relay.

State any four salient features of a microprocessor-based protection relay. Draw a block diagram of a microprocessor-based overcurrent relay.
Answer : ### Four Salient Features of a Microprocessor-Based Protection Relay: 1. **High Accuracy and Reliability**: Microprocessor-based relays are designed to offer high precision in detecting faults. Their algorithms can process data more ... -----------------+ | Signal Conditioning| ...

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List different types of faults occured on a power system. Draw necessary sketches (any four)

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Compare base load plant with peak load plant. (any four)

Compare base load plant with peak load plant. (any four)
Answer : Base load plants and peak load plants are both types of power generation plants, but they serve different purposes in meeting the electricity demand. Here's a comparison between them on four key ... , while peak load plants handle short-term demand spikes and are generally more expensive to operate....

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