# In a system, the damping coefficient is - 2. The system response will be

13 views
In a system, the damping coefficient is - 2. The system response will be (a) Undamped (b) Oscillations with decreasing magnitude (c) Oscillations with increasing magnitude (d) Critically damped

In a system, the damping coefficient is - 2. The system response will be Oscillations with increasing magnitude

## Related questions

1 answer 17 views

The damping factor of a particular system is unity, the system response will be

1 answer 16 views

If Voltage Standing Wave Ratio, (VSWR) of a wave is 2, its reflection coefficient will be _____.

0 answers 13 views

For a desirable transient response of a second order system, the damping ratio must be between (a) 0.4 and 0.8 (b) 0.8 and 1.0 (c) 0.3 and 0.5 (d) 0.2 and 0.4

0 answers 8 views

In a second order system the value of resonant peak will be unity when the damping ratio has a value of  A) Zero B) Unity C) 0.707 D) 0.414

1 answer 122 views

A 50Ω transmission line is terminated in an impedance of 20-j50. What will be the reflection coefficient? A) 0.69 B) 1.69 C) 6.9 D) 16.9

1 answer 16 views

In the time response analysis of control system, Damping Ratio is given by - a) Actual damping / Critical damping b) Critical damping /Actual damping c) ( Sum of the Actual damping and critical damping) /Actual damping d)( Difference of the Actual damping and critical damping) / critical damping

0 answers 70 views

. If the peak transmitted power in a radar system is increased by a factor of 16, the maximum range will be increased by a factor of : (A) 2 (B) 4 (C) 8 (D) 16

1 answer 62 views

If the inertia constant H of a machine of 200 MVA is 2 p.u., its value corresponding to 400 MVA will be   (a) 4 p.u. (b) 2 p.u. (c) 1.0 p.u. (d) 0.5 p.u.

1 answer 21 views

A second order system shows 100% overshoot in its unit step response. It can be categorized as (A) underdamped system. (B) overdamped system. (C) Critically damped system. (D) undamped system.

0 answers 21 views

If the antenna diameter in a radar system is increased by a factor of 4, the maximum range will be increased by a factor of  (a) 2 (b) 4 (c) 8 (d) 16

1 answer 24 views

A control system having unit damping factor will give  (1) Oscillatory response (2) Undamped response (3) Critically damped response (4) No response

1 answer 135 views

In a pure capacitive circuit if the supply frequency is reduced to 1/2, the current will?

1 answer 47 views

In a pure inductive circuit if the supply frequency is reduced to 1/2, the current will?

1 answer 373 views
0 answers 33 views

The characteristic equation of a simple servo system is s2+6s+25=0. Damping factor of the system is: A) 3.2 B) 2.4 C) 1.8 D) 2.9

1 answer 185 views

For a 66 kV line having span of 200 meters between towers the approximate sag will be 2 m. If the span is double the sag will be:  (A) 1 m (B) 2 m (C) 4m (D) 8m

1 answer 17 views

In PCM system, if we increase the quantization levels from 2 to 8, the relative bandwidth requirements will:  (1) Be doubled (2) Remain same (3) Be tripled (4) Becomes eight times

1 answer 23 views

In a d.c. series motor, the torque developed is 20 Nm at 10A. If the load current is doubled, the new torque will be : -  a) 60 Nm b) 45 Nm c) 80 Nm d) 100 Nm

0 answers 15 views

A series RLC circuit resonate at 200 Hz. If the capacitance is increased to four times, the circuit will be in resonance at   (a) 100 Hz (b) 200 Hz (c) 400 Hz (d) 800 Hz

1 answer 22 views

If the area of hysteresis loop of a material is large, the hysteresis loss in this material will be?

1 answer 75 views

The power consumed in a circuit element will be least when the phase difference between the current and voltage is?

0 answers 16 views

Which of these descriptions is true of the step response of an overdamped system ? (a) it rises to a steady state value with no overshoot (b) it rises to a steady state value with little overshoot (c) it has an undershoot (d) it does not settle to a steady state value

1 answer 26 views

The output of a 2-input NAND gate with high at both the inputs will be • High • Low • High & low • None of the above.

0 answers 27 views

A star circuit has element of resistance R/2. The equivalent delta elements will be?

1 answer 32 views
1 answer 21 views

A system has 14 poles and 2 zeros in its open -loop transfer function. The slope of its highest frequency asymptote in its magnitude plot is (a) - 40 dB/dec (b) - 240 dB/dec (c) + 40 dB/dec (d) + 240 dB/dec

1 answer 67 views

An amplifier has input power of 2 microwatts. The power gain of the amplifier is 60 dB. The output power will be

1 answer 21 views

lf the poles of system are lying on the imaginary axis in s-plane, then the system will be

1 answer 27 views

What is the time response of a system whose poles lie on the right hand side of s-plane? A) Exponentially increasing B) Exponentially decreasing C) Sinusoidal oscillations D) Step response

0 answers 27 views

The best method for determining the stability and transient response of a control system is (a) Bode Plot (b) Nyquist plot (c) Root locus (d) Routh-Hurwitz

1 answer 34 views

The transient response of a system is mainly due to?

1 answer 13 views

For a 2nd order servo system, the damping ratio δ = 0.5456 and undamped natural frequency is ωn = 31.6 rad/sec. The percent overshoot is  (a) 7.07 (b) 10.2 (c) 14.10 (d) 21.21

1 answer 19 views

Given a unity feedback system with G(s)=k/s (s+4), the value of k for damping ratio of 0.5 is

1 answer 37 views

If the characteristics equation of a closed loop system is s2+2s+2=0, then the system is  (A) Over damped (B) Critically damped (C) Under damped (D) Undamped

1 answer 25 views

If resistance is 20 Q. and inductance is 27 in a R-L series circuit, then time constant of this circuit will be?

1 answer 15 views

In moving iron instruments, eddy current damping cannot be used as  (a) They have a strong operating magnetic, field (b) They are not normally used in vertical position (c) They need a large damping force, which can only be provided by air friction (d) The introduction of a permanent magnet required for eddy current damping would distort the existing weak operating magnetic field

1 answer 12 views

In any network the current will be seen to be consisting of a forced current and a natural current. A forced current is  (a) A steady-state current with external source but a natural current is a transient current in a closed circuit with no external source. (b) A transient current with external source but a ... an external source. (d) A transient current in a closed circuit without external source, while a natural current is a steady-state current with an external source.

0 answers 13 views

With the feedback system, the transient response : (A) Decays slowly (B) Decays rapidly (C) Rises slowly (D) Rises quickly

1 answer 18 views
0 answers 49 views

A high-pass filter has a resistance R = 2 kΩ The lowest input frequency to be passed is 7.5 kHz. The value of suitable coupling capacitor must be: A) 0.001 pico Farad B) 0.01 pico Farad C) 0.1 pico Farad D) 1 pico Farad

0 answers 25 views

In case of four pole, lap wound machine if the air gap under each pole is the same, then what will be the result?  (A) There will be reduced eddy currents (B) There will be reduced hysteresis loss (C) Current in each path will not be the same (D) It will result in higher terminal voltage

0 answers 18 views

When the SCR conducts, the forward voltage drop will   (a) 0.7 V at all load current (b) 2 to 2.5 V at all load current (c) increases slightly with load current (d) remains constant with load current

1 answer 31 views

The r.m.s. value of a half-wave rectified alternating current is 10 A. Its value for full-wave rectification will be

0 answers 10 views

If a 220 V heater is used on 110 V supply, the heat produced by it will be nearly (a) one half (b) twice (c) one-fourth (d) four times

1 answer 24 views

A lamp of 100W at 200V is supplied current at 100 volts. It will be equivalent to the lamp of:   a. 50W b. 40W c. 25W d. 10W

1 answer 43 views

For a short transmission line with r/x ratio of is 1.0, the regulation will be zero when the load power factor is

2 answers 106 views

If a positively charged body is placed inside a spherical hollow conductor, what will be the polarity of charge inside and outside the hollow conductor ? (a) Inside positive, outside negative (b) Inside negative, outside positive (c) Both negative (d) Both positive

0 answers 20 views

If the supply frequency of a 3-phase induction motor is ‘f’, then frequency of rotor emf at motor slip ‘s’ will be   (a) sf (b) (1 – s)f (c) f/s (d) None of these

0 answers 21 views

A point charge of 120 mC is placed at the centre of a cube. What will be the total flux passing through one face of the cube?  A) 120 mC B) 60 mC C) 20 mC D) 30 mC

1 answer 21 views