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 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.
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....
Explain the luminaries in operation theatre of a hospital and the lux level required.
State the Lux Level recommended for (1) Class Room (2) College Auditorium.
Compare between: (i) Ultrasonic and Radar type level measurement (any three points) (ii) U-tube and well type manometer (any three points).
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.
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....
Classify wiring. State the type of wiring installation used for following applications with justification: (i) Hospital (ii) Spinning mill (iii) Milk Dairy (iv) Hotel.
State Magneto-striction. Draw Hysteresis loop for: (i) High silicon steel (ii) Copper (iii) Soft iron (iv) Wood.
State the meaning of the following: (i) Sensitivity (ii) Deflecting torque
State two insulators of following types along with their areas of application: (i) Class A (ii) Class E (iii) Class H.
State the use of following: (i) Screw driver (ii) Nose pliers (iii) Wire gauge (iv) Test lamp.
State any two applications of (i) Ferromagnetic (ii) Paramagnetic material.
State two applications of: (i) PVC paper (ii) Porcelain with type of class based on withstand temperature is insulating material.
State functions of the following parts of d.c motor: (i) Pole shoe (ii) Commutator (iii) Brushes (iv) Yoke.
State the function of following parts in Induction motor: (i) Stator (ii) Sliprings
State the function of following parts in Induction motor. (i) Stator (ii) Sliprings
State any four design considerations for the illumination scheme of a commercial complex.
State different types of electronic dimmers available for illumination control. Answer : Electronic dimmers are devices used to control the brightness of lighting by adjusting the voltage or current delivered to the light source. There are several types of electronic dimmers ... dimmers used for controlling illumination, with each suited to different lighting technologies and needs....
Compare Horizontal axis and vertical axis wind machines on the basis of: (i) Power captured for the same tower height. (ii) Noise problem. (iii) Complexity of design and yaw mechanism (iv) Effect of fatigue arising from numerous resonances in structure.
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.
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.
Give any two applications for i) Universal motor and ii) Hysteresis motor.
State the importance of a lighthouse in shipyards and describe the working of the lighthouse illumination system.
A moving coil instrument gives full scale deflection of 24 mA. When a P.D. across if is 108 mV. Find the value of – (i) Series resistance for full scale deflection of 400 V. (ii) Find the power consumption.
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.
Give any four selection criteria for: (i) Distribution transformer (ii) Power transformer.
Select or suggest any two applications for: (i) D.C shunt motor (ii) D.C series motor.
Find the number of address lines required for (i) 4K RAM (ii) 8K ROM.
Explain the lighting scheme to be designed for each of the following (i) Special ward in hospitals (ii) Dentist’s Cabin.
Compare simple KitKat fuse with MCB for i) Reliability ii) Braking capacity iii) Cost iv) Applications.
State the requirements of the illumination scheme of a shipyard.
State the first law of illumination.
How does increase in temperature affect the resistance of (i) conductors and (ii) insulators ?
Distinguish between: (i) Absolute and secondary instruments (ii) Analog and digital instruments.
Explain the use of the following components in electrical wiring system and give specification of each: (i) MCB (ii) ELCB.
Compare copper and aluminium on the basis of: (i) Tensile strength (ii) Conductivity (iii) Specific gravity (iv) Application.
Draw and explain the use of: (i) Combination plier (ii) Tester (iii) Wire Striper (iv) Hammer.
Name the material used and the sensitivity of the following thermocouple type: (i) J (ii) K (iii) R (iv) S.
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.
Compare RTD and thermistor on the basis of: (i) temperature coefficient (ii) linearity (iii) temperature range (iv) cost.
Draw the following and write one application of each: (i) Well type manometer (ii) Bellows.
Compare nominal - I and nominal - II method of transmission line (Any six points).
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.
Compare the salient features of LED and CFL based on (i) Lamp efficiency (ii) Life span. Answer : Here's a comparison of **LED** and **CFL** based on **lamp efficiency** and **life span**: ### 1. Lamp Efficiency: - **LED (Light Emitting Diode):** - **Higher Efficiency:** LEDs ... longer than **CFLs**. - **CFLs** are moderately energy-efficient and have a shorter lifespan compared to LEDs....
Define the following terms (i) lux and (ii) lumens.
Compare the salient features of mercury vapour lamp and sodium vapour lamp based on (i) lamp efficiency (ii) lumen output.
The power input to a 500V 50Hz 6Pole 3 phase induction motor running at 975 rpm is 40 kW. The stator losses are 1kW and friction and windage losses are 2kW. Calculate: (i) Slip (ii) Rotor copper loss (iii) Shaft power (iv) Efficiency
A 3 φ I.M. has synchronous speed of 250rpm and 4% slip at full load. The rotor has a resistance of 0.02Ω/ph and stand still reactance of 0.15Ω/ph. Calculate i) The speed at which max torque is developed. ii) The ratio of maximum to F. L. torque. iii) The ratio of maximum to starting torque.
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