In an oscillating LC circuit, the total stored energy is U and the maximum charge on the capacitor is Q. When the charge on the capacitor is Q/2, the energy stored in the inductor is: (EE - Sept. 2023)

The simplest form of electronic communication is one-way communication, where information is transmitted in one direction and not back, also referred to as __________.

One - way communications is called (EE - Sept. 2023)

This form of electronic communication allows for simultaneous two- way communication, or both parties can talk at the same time.

Simultaneoues two-way communications is called

The process of transmitting two or more information signals simultaneously over the same channel is called (EE - Sept. 2023)

The process of modifying a high frequency carrier with the information to be transmitted is called

The original electrical information signal to be transmitted is called

Transmission of graphical information over the telephone network is accomplished by

Measuring physical conditions at some remote location and transmitting this da ta for analysis is the process of

Recovering information from a carrier is known as

Continuous voice or video signals are referred to as being

Receiving electromagnetic emissions from stars is called

A personal communications hobby for individual is

Radar is based upon

Radio signals are made up of

Another name for signals in the HF range is

Television broadcasting occurs in which ranges?

For a given bandwidth signal, more channel space is available for signals in the range of

Electromagnetic waves produced primarily by heat are called

A micron is

Which of the following is not used for communications?

Which of the following statements about induction motors is FALSE? (EE - Sept. 2023)

A DC system can be protected from lightning by including a thyrite tube in the circuit that connects the high-voltage line with the ground. Which of the following is FALSE regarding a thyrite tube? (EE - Sept. 2023)

Which of the following is not a source of noise?

A capacitor in an LC oscillator has a maximum potential difference of 15V and a maximum energy of 360 μJ. At a certain instant the energy in the capacitor is 40 μJ. At that instant what is the emf induced in the inductor?

A 6000 volts line supplying three loads A, B and C. If the loads are located 4, 6 and 10 km respectively away from the supply having a resistance of 0.05 ohm per km and currents IA = 50 A, IB = 75 A and IC = 100 A. What is the voltage delivered in load A?

A relay that can detect an overload in the line.A relay that can detect an overload in the line.

A three-phase, 345-kV transmission line has a series impedance of (4.0 + j60.0) Ω and a shunt admittance of j 2.0 x 10-3 S. Using 100 MVA and the line voltage as base values, calculate the per-unit shunt admittance of the line.

What is the unit for relative permeability?

If the torque angle continuously increases, system will become .

The resistance of a rod does NOT depend on:

Resistance of a conductor increases when

What is the allowable rating for branch circuit overload protection if fuse is used for a hermetic motor compressor with a rated load current of 25 A?

Which of the following relays are used for phase fault on long line?

A car battery has an open-circuit terminal voltage of 12.6 V. The terminal voltage drops to 10.8 V when the battery supplies 240 A to a starter motor. What is the Thevenin equivalent resistance for this battery?

Three resistors A, B and C are connected in series to a 120-V supply. If the resistor A is 50 ohms and the voltage across resistor B is 40 V when the current is 1⁄2 A, what is the resistance of resistor C in ohms?

A series circuit consists of three resistors R1, R2 and R3 which are connected to a 240-V source. If the voltage drop across R1 is 60-V when the current is 4A and R2 = 1.5R3, what is the ohmic resistance R3?

Which of the following is not a purpose for grounding?

Which of the following is not a consideration in surge arrester?

Tall growing plants refer to plants, vines and other plant species which grow or have potential to grow more than ____ meters in height from the ground.

Calculate the total resistance of 11-33kΩ resistors connected in parallel.

Is a critical piece of safety equipment designed and regulated to enhance the visibility of workers at night or low light

Regarding Thevenin's equivalent, which of the following is not correct?

Regarding Norton's equivalent which of the following is not correct?

If an electrical network having one or more than one voltage source, is transformed into equivalent electrical network with a single voltage source (which is short circuit current of previous circuit) with parallel internal resistance of the network with all current source replaced by their internal resistance. The above illustration is called

The superposition theorem requires as many circuits to be solved as there are

Which of the following colors identifies the grounded conductor of a branch circuit?

A circuit conductor that is intentionally grounded is known as

A conductor used to connect the grounded circuit of a system to a grounding electrode or electrodes is known as

Conductor used to connect the non-current carrying metal parts of equipment, raceways, and other enclosures to the system grounded conductor, the grounding electrode conductor, or both at the service equipment or at the source of a separately derived system is called as

Conductor used to connect the grounding electrode to the equipment grounding conductor, the grounded conductor, or both is referred as

_____________ is an unspliced connection used to connect the equipment grounding conductor and the service disconnect

____________ a conductor or body of conductors in intimate contact with the earth for the purpose of providing a connection with the ground.

Earth resistance depends on

Earth resistance of __________Ω is adequate for residential and small commercial buildings

For large buildings and facilities that house sensitive loads, a resistance value should be of _____________ Ω.

A ____ is a protective device for limiting surge voltages by discharging or bypassing continued flow of follow current while functions.

A _____ conductor is one having one or more layers of non-conducting materials that are not recognized as insulation.

A current limiting overcurrent protective device is a device which will ___ the current flowing in the faulted circuit.

A current limiting device is a ____

During which season the load on a power system is maximum?

Which of the following statements regarding load curve is true?

In a load duration curve for an integrated power system, the uppermost crest represents the energy contributed by which one of the following?

The voltage of a bus can be controlled by controlling the

During load shedding

For a nuclear power plant, the useful life is expected to be about

The maximum demand of a power station is

Demand factor is defined as the ratio of

The load factor is equal to?

Diversity factor is the ratio of

Plant capacity factor is

Utilization factor is defined as the ratio of

Spinning reverse is

The power which must be available ever under emergency conditions is known as

Low power factor has the drawback(s) of

The current in an electrical circuit will take which of the following paths to return to its source?

An unintentional, electrically conducting connection between an ungrounded conductor of an electrical circuit and the normally non- current-carrying conductor, metallic enclosures, metallic raceways, metallic equipment of Earth best defines the following

If a circuit is capable of delivering 22,000 amps of fault current, what is the minimum short circuit current rating required for the equipment, including any overcurrent devices installed in the equipment?

The load (current) on a circuit breaker is generally not permitted to exceed what percentage of the rating of the circuit breaker?

The sun generates 1 KW/m^2 when used as a source for solar collectors. A collector with an area of 1 mm^2 heats water. The flow rate is 30 liters/min. What is the temperature rise in the water? The specific heat of water is 4200 J / kg - °C

A generator delivers a load through a pair of wires, each of which has a resistance of 0.06 Ω. If the load voltage and power are, respectively, 120 volts and 4.8 kW, calculate the generator voltage

A load consists of a resistance R in parallel with a capacitor of reactance X. The load is fed from a single phase supply through a line of impedance 8.4 + j11.2 ohms. The rms voltage at the load terminal is 1200 at 0 degrees V rms, and the load is taking 30 kVA at 0.8 power factor leading. Find the supply voltage.

A load consists of a resistance R in parallel with a capacitor of reactance X. The load is fed from a single phase supply through a line of impedance 8.4 + j11.2 ohms. The rms voltage at the load terminal is 1200 at 0 degrees V rms, and the load is taking 30 kVA at 0.8 power factor leading. Find the values of R and X.

The speed of a 4-pole 60 Hz synchronize machine will be.

The growth rate of the energy consumption in our country is 6.9%. In how many years will the energy be quadrupled?

A straight conductor 100 cm long and carrying a current of 40 A lies perpendicular to a magnetic field of 1.5 Wb/m2. What is the mechanical power in watts required to move the conductor at a uniform speed of 5m/s?

A single-phase motor runs a duty cycle; 20 kW for 10 s, 40 kW for 10 s, 60 kW for 5s, 80 kW for 10s, and idle for 10s. What is the rating of the motor?

Which of the following will take least time in starting from cold condition to full load operation.

Given the following phase currents: Ia = 3.5 + j3.5; Ib = -j3; and Ic = -2.6 + j1.5. Determine the negative sequence current for phase A.

Given the following phase currents: Ia = 3.5 + j3.5; Ib = -j3; and Ic = -2.6 + j1.5. Determine the negative sequence current for phase A.

Which of the following cannot have a single unit of 100 MW?

A3-ph,4-wire system s commonly used for

The rated voltage of a 3-ph power system is given as

Which of the following distribution systems is preferred for good efficiency and high economy

ACSR conductors have

The function of steel wire in an ACSR conductor is to

The material used for the manufacture of ground wire is

Guy wire is employed for?

Effect of temperature rise in overhead lines is to