Electrical Engineering (EE)

Match List- I (Theorem/Law) with List- II (Property) and select the correct answer using the codes given below the lists:
List - I
A. Norton’s theorem
B. Superposition theorem
C. Thevenin’s theorem
D. Kirchhoff’s current law
List - II
1. Effects of independent sources in a linear circuit are additive.
2. Law of non-accumulation of charge holds good at nodes.
3. Current source with shunt resistor.
4. Voltage source with series resistor.
Codes:

In a JFET, drain current is primarily controlled by

A synchronous motor is switched on to supply with its field winding shorted on themselves it will

One of the following consists of no resonant antennas:

Temperature measuring instruments are standardised mostly with __________ points of pure substances.

In an armature, if m is the number of slots per pole per phase and γ is the slot pitch angle, then the breadth or the distribution factor for the armature winding is

When the stator windings are connected in such a fashion that the number of poles are made half, the speed of the rotor of a synchronous motor

The phasor diagram of a synchronous machine connected to an infinite bus is shown in the figure. The machine is acting as a

Horse power is the unit of

Wooden cross arms are used for supporting

A pure capacitance connected across 50Hz, 230V supply consumes 0.04W. This consumption is attributed to

Consider the following statements:

When compared with a bridge rectifier, a centre tapped full wave rectifier:

1. Has larger transformer utilization factor.

2. Can be used for floating output terminalsi.e. no input terminal is grounded.

3. Needs two diodes instead of four.

4. Needs diodes of a lower PIV rating.

Which of these statements is/are correct?

In a photodiode the current is due to

The welding transformer used in resistance welding will

A 3φ, 50 Hz, 400 V, induction motor with 10 poles, running at speed of 540 rpm. If the number of poles reduced to 8, the newoperating slip is____________

Assuming accumulator contain A 64 and the carry is set (1).What will register A and (CY) contain after RAR?

The capacitance and loss angle of a given capacitor specimen are best measured by

Maxwell's inductance capacitance bridge is used for measurement of inductance of

If the number of conductors and speed of a lap wound generator is doubled then the generated emf will be

As a result of reflections from a plane conducting wall, electromagnetic waves acquire an apparent velocity greater greater than the velocity of light in space. This is called the

IF V_CC = 15 V, V_CEQ = 5 V and I_CQ = 50 mA, the efficiency in class A operation is

When a line-to-ground fault occurs, the current in the faulted phase is 100 A. The zero-sequence current in this case will be :

A small capacitance is added to a highly inductive circuit

If the gain of the open loop system is doubled, the gain margin of the system is

106.The accuracy of M.C. instrument as compared to M.I. instruments is –

Power factor of an alternator driven by constant prime mover input can be changed by changing its

If the fault current is 3000 A for a relay with a plug setting of 50% and CT ratio of 1000 : 1,the plug setting multiplier would be

Statement: There were different streams of freedom movements in colonial India carried out by the moderates, liberals, radicals, socialists, and so on. Which one of the following is the best inference from the above statement?

The PC contains 0450 H and SP contains 08D 6 H. What will be content of P and SP following a CALL to subroutine at location 02 AFH?

For the same voltage boost, the reactive power capacity is

Two -insulator discs of identical capacitance value C makes up a string for a 22 kV, 50 Hz,single-phase overhead line insulation system. If the pin to earth capacitance is also C, then the string efficiency is

Galloping in transmission line conductors arises generally due to

A CE-amplifier has R_L = 10 kΩ. Given hie = 1 kΩ, h_fe = 50, h_re = 0 and 1/h_oe = 40 kΩ. What is the voltage gain?

The given characteristic polynomial s⁴ + s³ + 2s² + 2s + 3 =0 has

Which of the following bus is used to transfer data from main memory to peripheral device?

In arc welding, the voltage on ac supply system is in the range

The number of discs in a string of insulators for 400 kV ac overhead transmission line lies in the range of

Equalising pulses in TV are sent during

In electromagnetic waves, polarization

Which of the following results in a symmetrical fault ?

As electromagnetic waves travel in free space, only one of the following can happen to them :

The working of a synchronous motor is similar to

Buses for load flow studies are classified as (i)the load bus, (ii) the generator bus and (iii) the
slack bus The correct combination of the pair of quantities specified having their usual meaning for different buses is

In a CRT the highest positive potential is given to

Assertion (A): R-2R ladder type DAC has higher speed of operation than weighted resistor DAC

Reason (R): R-2R ladder type DAC uses only two different values of resistor network uses many different values of resistors

At half power frequencies. the current in the RLC series circuit is:

As access time is decreased, the cost of memory

Find voltmeter reading of the circuit shown below 

A series R-L-C circuit will have unity power factor if operated at a frequency of

Match List- I (Connection) with List-ll (Equivalent inductance) and select the correct answer using the codes given below the lists:

Codes:

Which one of the following statement is correct ? The effects of phase lead compensator on gain crossover frequency (w_cg) and the bandwidth (BW) are

Assertion (A): Hall effect is used to find the type of semiconductor.

Reason (R): When a specimen of semiconductor carrying current I lies in a magnetic field the force on electrons and holes is in opposite directions.

Assertion (A): A capacitor can store charge.
Reason (R): The plates of the condenser are conductive.

A particular current is made up of two components a 10A dc and a sinusoidal current of peak value of 14.14A. The average value of resultant current is

Which instrument has the same calibration for ac & dc values ?

The maximum short circuit current occurs in case of

A person with a receiver is 5 km away from the transmitter. What is the distance that this person must move further to detect at 3 dB decrease in signal strength?

For the amplifier in figure, β = 800. The mid-band voltage gain V₀/V_i is

The transition region in an open circuited p-n junction contains

Holes are filled on the opposite side of the disc of an induction type energy meter to

A 50 Hz, 11 kV, 3 phase alternator with earthed neutral having a reactance of 3 ohms per phase and is connected to a bus bar through a circuit breaker, if the distributed capacitance upto CB between the phase and neutral is 0.01 μ F.

What is the peak re striking voltage?

Match List - I (Types of friction) with List - II (Corresponding frictional force vs Velocity curve) and select the correct answer using the codes given below the lists:

Error due to hysteresis is predominant in

With regard to the filtering property, the lead compensator and the lag compensator are, respectively.

Which one of the following is not a property of root loci ?

In the circuit shown below the op-amps are ideal. Then V_out  in Volts is

Under no load conditions, which of the following loss is negligible ?

In germanium at room temperature, the forbidden energy gap E_G is about

The purpose of providing an iron core in a transformer is to

Which of the following statements is not true of a phasor?

The impedance value of generator is 0.2 pu on a base value of 11 kV, 50 MVA. The impedance value for a base value of 22 KV, 150 MVA is

The value of flux involved m the e.m.f. equation of a transformer is

A supply voltage of 230V, 50 Hz is fed to a residential welding. Write down its equation for instantaneous value

Compared to Gauss-seidel method, Newton- Raphson method takes

Least expensive instrument for dc measurement is