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

Write any four safety measures and precautions to be followed for a special purpose lamp.
Answer : Here are four safety measures and precautions to follow when using a special-purpose lamp: 1. **Proper Ventilation**: Ensure the lamp is used in a well-ventilated area, especially if it's a ... the specifications for the lamp. Using incorrect power can lead to lamp failure or cause a safety hazard....

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Classify wiring. State the type of wiring installation used for following applications with justification: (i) Hospital (ii) Spinning mill (iii) Milk Dairy (iv) Hotel.

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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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State Magneto-striction. Draw Hysteresis loop for: (i) High silicon steel (ii) Copper (iii) Soft iron (iv) Wood.

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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.

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Find the number of address lines required for (i) 4K RAM (ii) 8K ROM.

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An industrial consumer charged with the scheduled tariff of Rs.250 /kVA per month for maximum demand and 150 paisa per unit consumed for load factor of 60% and 80%. Find overall cost per unit at i) unity P.F. ii) 0.9 P.F. consider maximum demand of 50 kVA.

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

Explain lighting scheme to be designed for each of the following (i) operation theatre in hospital (ii) general ward in hospitals.
Answer : Designing lighting schemes for different areas of a hospital requires considering the specific needs and functions of each space. Here's how lighting can be designed for an **operation theatre** ... factors, the lighting in both spaces will help ensure both functionality and patient well-being....

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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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State the recommended illumination level for (i) library and (ii) operation theatre.

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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 applications you mentioned, suitable single-phase motors would be: 1. **Table Fan:** - **Type of Motor:** Capacitor-Start Induction Motor (CSIM) or Permanent Split Capacitor (PSC) ... PSC or CSIM motor. - **Mixers and grinders:** Universal motor or Capacitor-Start Capacitor-Run motor....

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Compare simple KitKat fuse with MCB for i) Reliability ii) Braking capacity iii) Cost iv) Applications.

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How does a power transformer differ from a distribution transformer?

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What is the function of a constant-voltage transformer in power distribution?

What is the function of a constant-voltage transformer in power distribution?
Answer : A **constant-voltage transformer** (CVT) is used in power distribution systems to provide a stable and consistent voltage to the load, even when there are fluctuations in ... and protects equipment from voltage irregularities, ensuring smooth operation and preventing damage to sensitive components....

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