For a transient stability analysis, as long as equal area criterion is satisfied, the maximum angle to which rotor angle can oscillate is:
Description : The 'Equal area criterion' for the determination of transient stability of a synchronous machine connected to an infinite bus (1) ignores line as well as synchronous machine resistance ... consideration the possibility of machine losing synchronism after it has survived during the first swing.
Last Answer : 1
Description : The transient state stability limit is always (A) Greater than the steady state stability limit. (B) Smaller than the steady state Stability limit. (C) Equal to the steady state stability limit. (D) The two are not related.
Last Answer : The transient state stability limit is always Smaller than the steady state Stability limit.
Description : Transient stability studies of a power system are usually carried out over a time period of (A) two or more seconds (B) several time swings (C) time interval of first swing (D) sustained oscillations
Last Answer : Transient stability studies of a power system are usually carried out over a time period of several time swings
Description : what is transient stability limit ?
Last Answer : The transient stability limit is the max power that can be transmitted by a machine to a fault or a receiving system during a transient state without loss of synchronism.The transient stability limit is always less than the steady state stability limit.
Description : What is transient state stability limit?
Last Answer : The transient state stability limit is the max. power that can be transmitted by a machine to a receiving system without loss of synchronism.In steady state the power transferred by synchronous machine is always less than the steady state stability limit.
Description : Define transient stability?
Last Answer : The transient stabilitymis defined as the abilitymof a system to remain stable for large disturbance.
Description : Transient stability can be improved by a) By putting series capacitor b) By using dynamic resister c) Auto re-closers d) All of the above
Last Answer : Ans: All of the above
Description : The steady state stability limit as compared to the transient state stability limit is always
Last Answer : The steady state stability limit as compared to the transient state stability limit is always Greater
Description : Which of the following statements is true? (1) steady-state stability limit is greater than transient stability limit (2) steady-state stability limit is equal to transient stability ... made regarding the equality or otherwise of the steady-state stability limit and transient stability limit
Last Answer : Which of the following statements is true? (1) steady-state stability limit is greater than transient stability limit (2) steady-state stability limit is equal to transient ... made regarding the equality or otherwise of the steady-state stability limit and transient stability limit
Description : With fault clearing time, the transient stability of a power system
Last Answer : With fault clearing time, the transient stability of a power system decreases
Description : _____technique gives quick transient and stability response?
Last Answer : Root locus technique gives quick transient and stability response.
Description : Improvement of transient stability using SVC
Last Answer : Improvement of transient stability using SVC The static VAR compensator (SVC) is a shunt connected FACTS device. SVC have two modes one is inductive ... ;transmittable power. Transient stability improvement can be estimated using equal area criterion.
Description : According to maximum shear stress failure criterion, yielding in material occurs, when the maximum shear stress is equal to __________ times the yield stress. (A) 0.5 (B) 2 (C) √2 (D) √3/2
Last Answer : (A) 0.5
Description : The Fourier number (defined as a.t/L 2 ) is used in the analysis of problem involving heat transfer by (A) Forced convection (B) Natural convection (C) Transient conduction (D) Steady state conduction
Last Answer : (C) Transient conduction
Description : Define equal area criterion?
Last Answer : The equal area criterion for stability states that the system is stable if the area under pvs angle curve reduces to zero at some value of angle.
Description : Equal area criterion gives the information regarding (1) stability region (2) absolute stability (3) relative stability (4) swing curves
Last Answer : Equal area criterion gives the information regarding absolute stability
Description : State – Angle criterion.
Last Answer : The Angle criterion states that s=sa will be a point on root locus for that value of s, _D(s) = _G(s) H(s) =odd multiple of 180°
Description : The shafts will have same strength on the basis of torsional rigidity, if (A) Diameter and length of both shafts is same (B) Material of both shafts is same (C) Angle of twist for both shafts is same (D) All of above conditions are satisfied
Last Answer : (D) All of above conditions are satisfied
Description : The shafts will have same strength on the basis of torsional rigidity, if (a) diameter and length of both shafts is same (b) material of both shafts is same (c) angle of twist for both shafts is same (d) all of above conditions are satisfied
Last Answer : (d) all of above conditions are satisfied
Description : Bishop's method of stability analysis (A) Is more conservative (B) Neglects the effect of forces acting on the sides of the slices (C) Assumes the slip surface as an arc of a circle (D) All of the above
Last Answer : Answer: Option C
Description : For a thermodynamic process to be reversible, the temperature difference between hot body and working substance should be (a) zero (b) minimum (d) maximum (d) infinity (e) there is no such criterion.
Last Answer : Answer : a
Description : Which of the following condition should be satisfied in the design of a vibration absorber ? A) Natural frequency of the auxiliary system should be equal to the natural frequency of the main ... D) Natural frequency of the auxiliary system should be twice natural frequency of the main system
Last Answer : A) Natural frequency of the auxiliary system should be equal to the natural frequency of the main system
Description : Which of the following is not a criterion for successful market segmentation? a. there must be difference among consumers b. each segment must be located within a geographical area c. there must be consumer similarities within each segment identified d. a segment must be large enough to cover costs
Last Answer : a. there must be difference among consumers
Description : Describe any four selection criterion of transducers.
Last Answer : 1. Operating range :Range is specified user or manufacturer 2. Operating principle : Depend on principle measurement 3. Sensitivity: it must sensitive to small variation in input. 4. ... 10. Stability and Reliability 11. Loading effect 12. Static characteristics 13. General selection criteria
Description : What is Barkhausens Criterion?
Last Answer : Barkhausen‘s Criterion for Oscillations The necessary condition for sustained oscillations is 1. Product of voltage gain and feedback factor should be equal to and greater than Loop gain (β.Av) ≥ 1 2. Phase shift between the input and output signal or around the loop must be equal to 360⁰or 0⁰.
Description : The transient currents are due to _____.
Last Answer : The transient currents are due to changes in stored energy in inductors and capacitance
Description : The transient currents are associated with the?
Last Answer : The transient currents are associated with the changes in the stored energy in the inductors and capacitors.
Description : The double energy transient occur in the?
Last Answer : The double energy transient occur in the R-L-C circuit.
Description : In a loss-free R-L-C circuit the transient current is?
Last Answer : In a loss-free R-L-C circuit the transient current is sinusoidal.
Description : Stability of hill slopes depends upon (A) Nature of the slope (B) Angle of the slope (C) Geological conditions (D) All the above
Last Answer : Answer: Option D
Description : These are main components of Electronic Stability control system a) Speed Sensor b) Steering angle measurement angle c) Yaw-rate sensor d) All of the above
Last Answer : d) All of the above
Description : What flight condition should be expected when an aircraft leaves ground effect? a. A decrease in parasite drag permitting a lower angle of attack b. An increase induced drag and a requirement ... increase in dynamic stability d. A decrease in induced drag requiring a smaller angle of attack
Last Answer : b. An increase induced drag and a requirement for a higher angle of attack
Description : Which of the following are satisfied in a non-linear network ? 1. Associative 2. Superposition 3. Homogeneity 4. Bilaterality Select the correct answer using the codes given below : (a) 1 and 3 only (b) 1 and 4 only (c) 2 and 3 only (d) 2 and 4 only
Last Answer : Which of the following are satisfied in a non-linear network ? 1. Associative 2. Superposition 3. Homogeneity 4. Bilaterality Select the correct answer using the codes given below : (a) 1 and 3 only (b) 1 and 4 only (c) 2 and 3 only (d) 2 and 4 only
Description : Maximum stability of white phosphorous is at (A) Very high pressure (B) Atmospheric pressure (C) Room temperature (D) > 600°C
Last Answer : (D) > 600°C
Description : . For achieving maximum buckling stability use………….parameters. a) location c) quantity b) dimensions d) All of above
Last Answer : All of above
Description : ------------- is a feature that alerts a driver to an imminent crash and helps them use the maximum braking capacity of the car. a) AEB b) Air Bag c) Vehicles d) Electronic Stability control
Last Answer : a) AEB
Description : The frequency stability of the oscillator output is maximum in _____. (a) Crystal oscillator (b) Phase shift oscillator (c) LC oscillator (d) Wien bridge oscillator
Last Answer : The frequency stability of the oscillator output is maximum in Crystal oscillator.
Description : The Metacentric heights of two floating bodies A and B are 1 m and 1.5 m respectively. Select the correct statement. (A) The bodies A and B have equal stability (B) The body A is more stable than body B (C) The body B is more stable than body A (D) The bodies A and B are unstable
Description : Please explain "Exercise-Related Transient Abdominal Pain (ETAP)? See detail.
Last Answer : Well. I used to get them in the 60s when I did The Twist. I sometimes got them doing sit ups. They are muscle spasms along your rib cage from excercise.
Description : Do you have a psychological criterion as to when to wear or stop wearing a particular style or type of clothes based off the time of year temperature notwithstanding?
Last Answer : answer:Regardless of the weather when I was a child people had certain criterion that after certain months of the year you started to wear or not wear certain clothes even if the temperature swung up or ... never did figure out that Labor Day thingy either. So wear white whenever it suits you. :-}
Description : What musicals are 'allowed' according to my son's rather limited criterion?
Last Answer : I would totally count “The Phantom of the Opera”.
Description : Will Criterion be releasing more updates ?
Last Answer : Looking at the main map to paradise city , i can see 4 places where they could expand the maps . These are areas where the road is hidden behind a drive or dead end places where you can't get to ... good if they came up with something new as big surf island is boring and only good for stunt runs .
Description : Crack propagation problems come under category. a.steady-state problems b.eigenvalue problems c.transient problems d.any of the above
Last Answer : c.transient problems
Description : Which is the criterion used to measure the strength of a country? -Geography
Last Answer : The development of the manufacturing industries is used as the criterion to measure the economic strength of the country. For the general and economic development of the country, the ... finished goods are the prosperous one, thus India should expands manufacturing industries of the country.
Description : What is the main criterion used by the World Bank in classifying different countries ? -SST 10th
Last Answer : The World Development Report, 2012, brought out by the World Bank has given the following criteria in classifying countries :- (i) Rich or High income countries : Countries with the per capita income ... , education, longevity, etc. (ii) The method does not provide us the distribution of income.
Description : “Average income is an important criterion for development.” Explain. -SST 10th
Last Answer : (i) Average income gives us an idea what an average person is likely to get out of the total national income. (ii) Average income is used to classify the countries into rich, poor or developing nations. (iii) Average income is used to make economic policies.
Description : What is the criterion to determine if adults are undernourished ? -SST 10th
Last Answer : (i) The criterion to determine if adults are undernourished is Body Mass Index, popularly known as BMI. (ii) In order to calculate it, first the weight of the person in kg is taken. Then, ... would be considered undernourished. However, if this BMI is more than 25, then a person is overweight.
Description : What is the criterion used by the UNDP for classifying countries? -SST 10th
Last Answer : ' United Nations Development Programme (UNDP) has used the criterion of Human Development Index to measure the development of countries. HDI is calculated on the basis of: . Per capita income : When the ... that of India. We are required to make progress in the education and health sectors as yet.
Last Answer : This answer was deleted by our moderators...
Description : In what respect in the criterion used by the UNDP for measuring development different from the one used by the World Bank -SST 10th
Last Answer : UNDP is United Nation Development Programme. It advocates for change and connects countries to knowledge, experience and resources to help people build a better life. The main difference between the UNDP ... of factors like health, education and income to know about the development of a country.