The transfer function of a system is 10/(1+s) when operating as a unity feedback system, the steady state error to a step input will be a) 0 b) 1/11 c) 10 d) Infinity

The transfer function of a system is 10/(1+s) when operating as a
unity feedback system, the steady state error to a step input will be
a) 0
b) 1/11
c) 10
d) Infinity
by

1 Answer

Answer :

Ans: 1/11
by

Related questions

For a feedback control system of type 2, the steady error for a rap input is

Description : For a feedback control system of type 2, the steady error for a rap input is  A) Infinite B) Constant C) Zero D) Indeterminate

Last Answer : For a feedback control system of type 2, the steady error for a rap input is Zero 

In order to regulate steady state error to zero, in a negative feedback control system, one employs

Description : In order to regulate steady state error to zero, in a negative feedback control system, one employs

Last Answer : In order to regulate steady state error to zero, in a negative feedback control system, one employs Integral control

The final step in testing a circuit for a ground involves the use of a megohmmeter. A grounded switch or cable will be indicated by a megohmmeter reading of ____________. A. 'zero' B. infinity C. steady in the high range D. unsteady in the low range

Description : The final step in testing a circuit for a ground involves the use of a megohmmeter. A grounded switch or cable will be indicated by a megohmmeter reading of ____________. A. 'zero' B. infinity C. steady in the high range D. unsteady in the low range

Last Answer : Answer: A

What is the steady state error of type-0 system for ramp input?

Description : What is the steady state error of type-0 system for ramp input?  A) ∞ B) A/K C) A/(1+K) D) 0

Last Answer : What is the steady state error of type-0 system for ramp input?  A) ∞ B) A/K C) A/(1+K) D) 0

If PN junction is forward biased its resistance is (a) Zero (b) Infinity (c) A few ohm (d) A few kilo ohms

Description : If PN junction is forward biased its resistance is (a) Zero (b) Infinity (c) A few ohm (d) A few kilo ohms

Last Answer : c) A few ohm

Basic operating characteristics of the operational amplifier such as gain and stability are the function of its _____________. A. differential input stage B. power output stage C. feedback circuit D. supply voltages

Description : Basic operating characteristics of the operational amplifier such as gain and stability are the function of its _____________. A. differential input stage B. power output stage C. feedback circuit D. supply voltages

Last Answer : Answer: C

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

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

Last Answer : Given a unity feedback system with G(s)=k/s (s+4), the value of k for damping ratio of 0.5 is 16

Paramagnetic materials have relative permeability (a) slightly less than unity (b) equal to unity (c) slightly more than unity (d) equal to that ferromagnetic mate rials

Description : Paramagnetic materials have relative permeability (a) slightly less than unity (b) equal to unity (c) slightly more than unity (d) equal to that ferromagnetic mate rials

Last Answer : (c) slightly more than unity

The value of ∈r for various dielectrics is always: (a) Larger than unity (b) Less than unity (c) Equal to unity (d) None of above

Description : The value of ∈r for various dielectrics is always: (a) Larger than unity (b) Less than unity (c) Equal to unity (d) None of above

Last Answer : (a) Larger than unity

Which terminology deals with the excitation or stimulus applied to the system from an external source for the generation of an output? a. Input signal b. Output signal c. Error signal d. Feedback signal

Description : Which terminology deals with the excitation or stimulus applied to the system from an external source for the generation of an output? a. Input signal b. Output signal c. Error signal d. Feedback signal

Last Answer : Ans: A

the exit gradient in the absence of a downstream cut-off is (A) 0 (B) Unity (C) Infinity (D) Very large

Description : the exit gradient in the absence of a downstream cut-off is (A) 0 (B) Unity (C) Infinity (D) Very large

Last Answer : Answer: Option C

The termresponsivityasit appliesto a light detectorisbest described as a. the time required for the signal to go from 10 to 90 percent of maximum amplitude b.the ratio ofthediode output currentto opticalinputpower c. the ratio of output current to output power d. the ratio of output current to input current

Description : The termresponsivityasit appliesto a light detectorisbest described as a. the time required for the signal to go from 10 to 90 percent of maximum amplitude b.the ratio ofthediode output currentto ... of output current to output power d. the ratio of output current to input current

Last Answer : b.the ratio ofthediode output currentto opticalinputpower

increases the steady state accuracy. (a) Integrator (b) Differentiator (c) Phase lead compensator (d) Phase lag compensator Ans:A 10.As a result of introduction of negative feedback which of the following will not decrease ? (a) Band width (b) Overall gain (c) Distortion (d) Instability

Description : increases the steady state accuracy. (a) Integrator (b) Differentiator (c) Phase lead compensator (d) Phase lag compensator Ans:A 10.As a result of introduction of negative feedback which of the following will not decrease ? (a) Band width (b) Overall gain (c) Distortion (d) Instability

Last Answer : Ans: A

The radius of hydrogen atom is about a) 5 x 10-11 m b) 5 x 10-11 cm c) 5 x 10-11 mm d) 5 x 10-11 dm

Description : The radius of hydrogen atom is about a) 5 x 10-11 m b) 5 x 10-11 cm c) 5 x 10-11 mm d) 5 x 10-11 dm

Last Answer : a) 5 x 10-11 m

When the voltage and the current developed in an AC circuit reach their peak values at the same time, the power factor is considered to be _____________. A. lagging B. leading C. unity D. infinity

Description : When the voltage and the current developed in an AC circuit reach their peak values at the same time, the power factor is considered to be _____________. A. lagging B. leading C. unity D. infinity

Last Answer : Answer: C

When the feed to a distillation column is a saturated liquid, slope of thefeed line is(A) Zero(B) Unity(C) Infinity(D) None of these

Description : When the feed to a distillation column is a saturated liquid, slope of thefeed line is (A) Zero (B) Unity (C) Infinity (D) None of these

Last Answer : (C) Infinity

What is the reflux ratio at total reflux? (A) Zero (B) Infinity (C) Unity

Description : What is the reflux ratio at total reflux? (A) Zero (B) Infinity (C) Unity

Last Answer : (B) Infinity

The conductivity in free space medium is a) Infinity b) Unity c) Zero d) Negative

Description : The conductivity in free space medium is a) Infinity b) Unity c) Zero d) Negative

Last Answer : c) Zero

The potential difference in an open circuit is a) Zero b) Unity c) Infinity d) Circuit does not exist open

Description : The potential difference in an open circuit is a) Zero b) Unity c) Infinity d) Circuit does not exist open

Last Answer : c) Infinity

For a test charge placed at infinity, the electric field will be a) Unity b) +∞ c) Zero d) -∞

Description : For a test charge placed at infinity, the electric field will be a) Unity b) +∞ c) Zero d) -∞

Last Answer : c) Zero

What is the value of ln y (where y = activity co-efficient) for ideal gases? (A) Zero (B) Unity (C) Infinity (D) Negative

Description : What is the value of ln y (where y = activity co-efficient) for ideal gases? (A) Zero (B) Unity (C) Infinity (D) Negative

Last Answer : (A) Zero

As the temperature is lowered towards the absolute zero, the value of ∂(∆F)/∂T, then approaches (A) Unity (B) Zero (C) That of the heat of reaction (D) Infinity

Description : As the temperature is lowered towards the absolute zero, the value of ∂(∆F)/∂T, then approaches (A) Unity (B) Zero (C) That of the heat of reaction (D) Infinity

Last Answer : B) Zero

As the temperature is lowered towards the absolute zero, the value of the quantity (∂∆F/∂T) approaches (A) Zero (B) Unity (C) Infinity (D) None of these

Description : As the temperature is lowered towards the absolute zero, the value of the quantity (∂∆F/∂T) approaches (A) Zero (B) Unity (C) Infinity (D) None of these

Last Answer : (A) Zero

While dissolving a gas into a liquid at a constant temperature, the ratio of the concentration of the gas in the solution phase and in the gaseous phase is (A) Infinity (B) Unity (C) Constant (D) Negative

Description : While dissolving a gas into a liquid at a constant temperature, the ratio of the concentration of the gas in the solution phase and in the gaseous phase is (A) Infinity (B) Unity (C) Constant (D) Negative

Last Answer : (C) Constant

What is the entropy of a pure substance at a temperature of absolute zero?  a. unity  b. zero  c. infinity  d. undefined

Description : What is the entropy of a pure substance at a temperature of absolute zero?  a. unity  b. zero  c. infinity  d. undefined

Last Answer : zero

What will be the reflection coefficient of the wave of load connected to transmission line if surge impedance of the line is equal to load ? (a) Zero (b) Unity (c) Infinity (d) None of the above

Description : What will be the reflection coefficient of the wave of load connected to transmission line if surge impedance of the line is equal to load ? (a) Zero (b) Unity (c) Infinity (d) None of the above

Last Answer : (a) Zero

The reflection co-efficient at the open circuited end of a transmission line. (a) zero (b) infinity (c) unity (d) none of the above

Description : The reflection co-efficient at the open circuited end of a transmission line. (a) zero (b) infinity (c) unity (d) none of the above

Last Answer : (c) unity

To construct a step down transformer, the condition is: a. Ns > Np b. Np > Ns c. Np = Ns d. Np . Ns = 1

Description : To construct a step down transformer, the condition is: a. Ns > Np b. Np > Ns c. Np = Ns d. Np . Ns = 1

Last Answer : c. Np = Ns

Introduction of integral action in the forward path of a unity feedback system results in a

Description : Introduction of integral action in the forward path of a unity feedback system results in a  A) Marginally stable system B) System with no steady state error C) System with increased stability margin D) System With better speed of response

Last Answer : Introduction of integral action in the forward path of a unity feedback system results in a System with no steady state error 

A unity negative feedback control system is found to have a gain margin of 20 dB. The Nyquist plot of the

Description : A unity negative feedback control system is found to have a gain margin of 20 dB. The Nyquist plot of the system (A) crosses the real axis at +0.1 (B) crosses the real axis at -0.1. (C) crosses the imaginary axis at -0.1 (D) crosses the imaginary axis at +0.1

Last Answer : A unity negative feedback control system is found to have a gain margin of 20 dB. The Nyquist plot of the system crosses the real axis at -0.1.

In the Bode plot of a unity feedback control system, the value of phase of G(jw) at the gain cross -over...

Description : In the Bode plot of a unity feedback control system, the value of phase of G(jw) at the gain cross -over frequency is - 125°.. The phase margin of the system is (a) - 125° (b) - 55° (c) 55° (d) 125°

Last Answer : In the Bode plot of a unity feedback control system, the value of phase of G(jw) at the gain cross -over frequency is - 125°.. The phase margin of the system is 55°

As shown in the illustration, the circuit which 'shapes' the linear output of the thrust lever so that the steady-state ship speed is linear with respect to that lever's setting is the _____________. EL-0095 A. 'pitch controller' B. 'error amplifier' C. 'function generator' D. 'servo amplifier'

Description : As shown in the illustration, the circuit which 'shapes' the linear output of the thrust lever so that the steady-state ship speed is linear with respect to that lever's setting is the _____________. EL-0095 A. 'pitch controller' B. 'error amplifier' C. 'function generator' D. 'servo amplifier'

Last Answer : Answer: C

Why ELCB cannot work if Neutral input of ELCB does not connect to ground?

Description : Why ELCB cannot work if Neutral input of ELCB does not connect to ground?

Last Answer : ▪ ELCB is used to detect earth leakage fault. Once the phase and neutral are connected in an ELCB, the current will flow through phase and that same current will have to return neutral so ... that full fault current will come back through ELCB, and there will be no difference in current.

EMDis best describe bywhich statement? a. 70percentofthe corediameter and70%ofthefiberNAshouldbe filled with light b.70 percent of the fiber diameter and 70% of the cone of acceptance should be filled with light c.70 percent of input light should be measured at the output d.70 percent of the unwanted wavelengths should be attenuated by the fiber

Description : EMDis best describe bywhich statement? a. 70percentofthe corediameter and70%ofthefiberNAshouldbe filled with light b.70 percent of the fiber diameter and 70% of the cone of acceptance should be filled with ... the output d.70 percent of the unwanted wavelengths should be attenuated by the fiber

Last Answer : a. 70percentofthe corediameter and70%ofthefiberNAshouldbe filled with light

Top loadingissometimesusedwithan antenna in ordertoincrease its a. effective height b. bandwidth c. beamwidth d. input capacitance

Description : Top loadingissometimesusedwithan antenna in ordertoincrease its a. effective height b. bandwidth c. beamwidth d. input capacitance

Last Answer : a. effective height

The circuit which changes input signal at output with phase shift of 1800 is called (a) Amplifier (b) operational amplifier (c) switch (d) inverter

Description : The circuit which changes input signal at output with phase shift of 1800 is called (a) Amplifier (b) operational amplifier (c) switch (d) inverter

Last Answer : (d) inverter

Non-inverting amplifier circuits have _______ (a) Very high input impedance (b) very low input impedance (c) low output impedance (d) none of above

Description : Non-inverting amplifier circuits have _______ (a) Very high input impedance (b) very low input impedance (c) low output impedance (d) none of above

Last Answer : (a) Very high input impedance

Silicon transistors are preferred because: (a) High operating temperature (b) Low leakage current (c) Suited to high frequency circuits (d) All

Description : Silicon transistors are preferred because: (a) High operating temperature (b) Low leakage current (c) Suited to high frequency circuits (d) All

Last Answer : (d) All

To limit the operating temperature an electrical machine should have proper?

Last Answer : To limit the operating temperature an electrical machine should have proper current rating.

If stability error for step input and speed of response be the criteria for design, what controller would you

Description : If stability error for step input and speed of response be the criteria for design, what controller would you recommend (1) P controller (2) PD controller (3) PI controller (4) PID controller

Last Answer : If stability error for step input and speed of response be the criteria for design, what controller would you recommend (1) P controller (2) PD controller (3) PI controller (4) PID controller

For a feedback amplifier, if the loop gain is much greater than unity, the closed loop gain will be equal to

Description : For a feedback amplifier, if the loop gain is much greater than unity, the closed loop gain will be equal to

Last Answer : For a feedback amplifier, if the loop gain is much greater than unity, the closed loop gain will be equal to inverse of feedback factor

Pick out the wrong statement. (A) In the McCabe-Thiele diagram for binary distillation, vertical feed line represents saturated liquid feed and horizontal feed line represents saturated vapour feed (B) In small columns, local efficiency is larger than Murphree efficiency; in large columns local efficiency is smaller than Murphree efficiency (C) For Laminar flow over a plate of length L, the local mass transfer co￾efficient at a distance L from the leading edge is 1.5 × 10 -2m/s. Then the average mass transfer co-efficient for the plate is 2 × 10 -2m/s (D) The concentration and hydrodynamic boundary layers over a flat plate are of equal thickness, if Schmidt number is equal to unity

Description : Pick out the wrong statement. (A) In the McCabe-Thiele diagram for binary distillation, vertical feed line represents saturated liquid feed and horizontal feed line represents saturated vapour feed (B) In ... layers over a flat plate are of equal thickness, if Schmidt number is equal to unity

Last Answer : (C) For Laminar flow over a plate of length L, the local mass transfer co￾efficient at a distance L from the leading edge is 1.5 × 10 -2m/s. Then the average mass transfer co-efficient for the plate is 2 × 10 -2m/s

The left face of a one dimensional slab of thickness 0.2 m is maintained at 80°C and the right face is exposed to air at 30°C. The thermal conductivity of the slab is 1.2 W/m.K and the heat transfer co-efficient from the right face is 10 W/m2 .K. At steady state, the temperature of the right face in °C is (A) 77.2 (B) 71.2 (C) 63.8 (D) 48.7

Description : The left face of a one dimensional slab of thickness 0.2 m is maintained at 80°C and the right face is exposed to air at 30°C. The thermal conductivity of the slab is 1.2 W/m.K and the heat transfer co-efficient from the ... temperature of the right face in °C is (A) 77.2 (B) 71.2 (C) 63.8 (D) 48.7

Last Answer : (D) 48.7

Why do we close the switch at 11 o'clock and not at 12 o' clock?

Description : Why do we close the switch at 11 o'clock and not at 12 o' clock?

Last Answer : When the synchroscope is approaching 12 o'clock the "slip" (differential) between the sine waves is approaching minimum (slip is zero when the synch'scope is at 12 o'clock) and the voltage differential between ... delay to close, by doing at 11 o'clock, we are achieving closing close to 12 o'clock.

When 2,4 and 6 ohms resistor are connected in parallel their resultant equivalent resistance will be A. 12ohm b. 11/12ohm C. 12/11ohm d. None

Description : When 2,4 and 6 ohms resistor are connected in parallel their resultant equivalent resistance will be A. 12ohm b. 11/12ohm C. 12/11ohm d. None

Last Answer : C. 12/11ohm

_______ electric power is the most common method used by electrical grids to transfer power.

Description : _______ electric power is the most common method used by electrical grids to transfer power.  (A) One-phase (B) Two-phase (C) Three-phase (D) None of the above

Last Answer : Three-phase electric power is the most common method used by electrical grids to transfer power. 

In the phenomenon of Laser production, atom can reside in the meta stable state for a) ~ 10-3 s b) ~ 10-8 s c) ~ 10-4 s d) ~ 10-10 s

Description : In the phenomenon of Laser production, atom can reside in the meta stable state for a) ~ 10-3 s b) ~ 10-8 s c) ~ 10-4 s d) ~ 10-10 s

Last Answer : a) ~ 10-3 s

In the phenomenon of Laser production, atom can reside in the excited state only for a) 10-6 s b) 10-7 s c) 10-8 s d) 10-9 s

Description : In the phenomenon of Laser production, atom can reside in the excited state only for a) 10-6 s b) 10-7 s c) 10-8 s d) 10-9 s

Last Answer : c) 10-8 s