Define the following terms with respect to protective relays: i) Relay time ii) Reset current iii) Plug setting multiplier iv) Time setting multiplier.
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 circuit breaker: i) Breaking Capacity ii) Making Capacity iii) Short time rating iv) Normal current rating.
Define the following terms related to CB: i) Rated normal current ii) Rated breaking current iii) Short time rating iv) Symmetrical breaking current.
Define the terms: (i) Load factor (ii) Diversity factor (iii) Demand factor (iv) Plant capacity factor.
Define the following terms: (i) Average demand (ii) Load factor (iii) Plant capacity factor (iv) Plant use factor
Define the following terms. (i) Precision (ii) Drift (iii) Resolution (iv) Back lash
Define the following terms: i) Luminous intensity ii) Luminous flux.
Define the following terms (i) lux and (ii) lumens.
Related to ultrasonic flow meter: (i) Give any two types of it (ii) Write any two specifications (iii) Write two advantages over Rotameter.
State the meaning of the following: (i) Sensitivity (ii) Deflecting torque
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.
What is the difference between sensitivity and selectivity in receivers?
Explain the concept of the following terms: (i) Connected load (ii) Maximum demand
Explain PSM and TSM related to protective relays.
Define the following ratings of a motor: (i) Horsepower rating (ii) Short-time rating
Define: (i) Assembler (ii) Compiler.
Define: (i) Address bus (ii) Data bus.
Define i) making capacity ii) short time rating of circuit breaker.
Define fission and fusion related to nuclear fuel.
How does a digital protective relay differ from an electromechanical relay?
Define Reliability and Sensitivity.
Compare orifice plate with Venturi tube with reference to: (i) Working principle (ii) Construction (iii) Cost (iv) Pressure loss.
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.
Explain the lighting scheme to be designed for each of the following (i) Special ward in hospitals (ii) Dentist’s Cabin.
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....
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.
Define the terms incandescent and incandescent lamp.
Define IDMT relay?
How does increase in temperature affect the resistance of (i) conductors and (ii) insulators ?
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.
Explain with neat sketch: (i) Earth resistance measurement using earth tester (ii) High resistance measurement using megger.
Describe how the following measurements can be made with the use of CRO: (i) Voltage measurement (ii) Time period measurement
Distinguish between: (i) Absolute and secondary instruments (ii) Analog and digital instruments.
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.
State two insulators of following types along with their areas of application: (i) Class A (ii) Class E (iii) Class H.
Explain with justification two uses of each of two following as an electrical conductor: (i) Brass (ii) Silver.
Explain the use of the following components in electrical wiring system and give specification of each: (i) MCB (ii) ELCB.
Explain following wiring systems: (i) Concealed wiring (ii) Metal conduit wiring.
Explain the function of: (i) DB (ii) Socket (iii) Cable (iv) Switch.
Give one application of (i) Mineral oil (ii) Varnish (iii) Synthetic oil (iv) Vegetable oil.
Compare copper and aluminium on the basis of: (i) Tensile strength (ii) Conductivity (iii) Specific gravity (iv) Application.
State the use of following: (i) Screw driver (ii) Nose pliers (iii) Wire gauge (iv) Test lamp.
Name any two applications of following gases. (i) Nitrogen (ii) Hydrogen (iii) Sf6 (iv) Air.
State any two applications of (i) Ferromagnetic (ii) Paramagnetic material.
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 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 Magneto-striction. Draw Hysteresis loop for: (i) High silicon steel (ii) Copper (iii) Soft iron (iv) Wood.
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