The phase lead compensation is used to
a) Increase rise time and decrease overshoot
b) Decrease both rise time and overshoot
c) Increase both rise time and overshoot
d) Decrease rise time and increase overshoot

1 Answer

Answer :

Ans: Decrease rise time and increase overshoot

Related questions

Description : The purpose of a heat sink, as frequently used with transistors, is to ____________. A. prevent excessive temperature rise B. compensate for excessive doping C. increase the reverse current D. decrease the forward current

Last Answer : Answer: A

Description : What are the effects of phase lead compensation?

Last Answer : i. The velocity error constant Kv is usually increased for the given relative stability. ii. The peak resonance Mp will be reduced. iii. Phase margin is increased. iv. Bandwidth is increased. v. Overshoot reduces as peak resonance Mp is reduced.

Description : What are the limitations of phase lead compensation?

Last Answer : i. The velocity error constant Kv is usually increased for the given relative stability. ii. The peak resonance Mp will be reduced. iii. Phase margin is increased. iv. Bandwidth is increased. v.Overshoot reduces as peak resonance Mp is reduced.

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

Description : The initial condylar guidance of 25 degrees was wrong and is changed to 45 degrees. What changes will you make to achieve balanced occlusion: A. Decrease incisal guidance B. Reduce cusps height C. Increase compensation curve

Last Answer : C. Increase compensation curve

Description : Error-rate damping is effective because the circuitry has the capability of ______________the amount of overshoot before it happens.

Last Answer : Anticipating

Description : Define peak overshoot.

Last Answer : Peak overshoot is defined as the ratio of maximum peak value measured from the Maximum value to final value

Description : 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.

Last Answer : A second order system shows 100% overshoot in its unit step response. It can be categorized as undamped system.

Description : The equilibrium price of a commodity will definitely rise if there is a/an: (1) increase in supply combined with a decrease in demand. (2) increase in both demand and supply. (3) decrease in both demand and supply. (4) increase in demand accompanied by a decrease in supply.

Last Answer : (4) increase in demand accompanied by a decrease in supply. Explanation: Price of a commodity is always determined by the forces of demand and supply in the market. The price at which ... equilibrium price definitely increases when there is an increase in demand combined with the decrease in supply.

Description : The equilibrium price of a commodity will definitely rise if there is a/an : (1) increase in supply combined with a decrease in demand. (2) increase in both demand and supply. (3) decrease in both demand and supply. (4) increase in demand accompanied by a decrease in supply.

Last Answer : increase in demand accompanied by a decrease in supply.

Description : The primary event in respiratory alkalosis is (A) Rise in pH (B) Decrease in pCO2 (C) Increase in plasma bicarbonate (D) Decrease in plasma chloride

Last Answer : Answer : B

Description : Dew point of a gas-vapour mixture (A) Increases with temperature rise (B) Decreases with temperature rise (C) Decreases with decrease in pressure (D) Increases with increase in pressure

Last Answer : (C) Decreases with decrease in pressure

Description : Thermal conductivities of most of the liquids __________ with rise in temperature. (A) Increases (B) Decreases (C) Remains unchanged (D) May increase or decrease; depends on the liquid

Last Answer : (B) Decreases

Description : At constant temperature, the thermal conductivities of gases__________ with rise in pressure. (A) Decrease (B) Increase (C) Remain unchanged (D) May increase or decrease; depends on the pressure

Last Answer : (A) Decrease

Description : Tea kept in a thermos flask is vigorously shaken. If the tea is considered as a system, then its temperature will (A) Increase (B) Decrease (C) Remain unchanged (D) First fall and then rise

Last Answer : (A) Increase

Description : Rise of water table above the ground surface causes (A) Equal increase in pore water pressure and total stress (B) Equal decrease in pore water pressure and total stress (C) Increase in ... pressure but decrease in total stress (D) Decrease in pore water pressure but increase in total stress

Last Answer : Answer: Option A

Description : With an increase in size of tube, the rise or depression of liquid in the tube due to surface tension will (A) Decrease (B) Increase (C) Remain unchanged (D) Depend upon the characteristics of liquid

Last Answer : Answer: Option A

Description : The rise or depression of liquid in a tube due to surface tension will increase in size of tube will (A) Increase (B) Remain unaffected (C) May increase or decrease depending on the characteristics of liquid (D) Decrease

Last Answer : Answer: Option D

Description : Resistance of a wire on increasing its temperature will a. increase with rise in temperature b. decrease with rise in temperature c. will remain same d. depends upon altitude of experimentation

Last Answer : a. increase with rise in temperature

Description : Volume variance arises when A. There is rise in overhead rate per hour B. There is decline in overhead rate per hour C. There is decrease or increase in actual output compared to the budgeted output D. None of the above

Last Answer : C. There is decrease or increase in actual output compared to the budgeted output

Description : Identify the correct statement for air compressors. a. For every 5.5oC drop in the inlet air temperature, the increase in energy consumption is by 2%. b. For every 4 oC rise in ... increase in energy consumption is by 1% d. The energy consumption remains same irrespective of inlet air temperature 

Last Answer : c. For every 4 oC rise in the inter air temperature, the increase in energy consumption is by 1% 

Description : With absorption and decomposition of CO2 in ocean water beyond desired level, there will be : (A) decrease in temperature (B) increase in salinity (C) growth of phytoplankton (D) rise in sea level

Last Answer : Answer: C  Phytoplankton are photosynthesizing microscopic organisms that inhabit the upper sunlit layer of almost all oceans and bodies of fresh water. They are agents for "primary production," ... powerful biotoxins. These toxic blooms can kill marine life and people who eat contaminated seafood.

Description : Due to which of the following reasons the cables should not be operated too hot ? (a) The oil may loose its viscosity and it may start drawing off from higher levels (b) Expansion of the ... instability may rise due to the rapid increase of dielectric losses with temperature (e) All of the above

Last Answer : (e) All of the above

Description : Describe the following errors and their compensation: (i) Phase error (ii) Speed error

Last Answer : (I) Phase error   1. In the phase error the phase difference angle between ∅ & ∅ is kept by using the shading band/ring  2. If the design and location of Shading band/ring is ... of brake magnet. By changing the position of the brake magnet speed of the rotating disc can be controlled. 

Description : An AC generator operating in parallel loses its excitation without tripping the circuit breaker. This will __________. A. not affect the faulty generator due to the compensation of the other generators B. ... between the armature and the bus D. cause high currents to be induced in the field windings

Last Answer : Answer: D

Description : Budgeting money to Quality initiative will lead to these outcomes except: a. decrease R&D time. b. increase Demand. c. increase Labor Costs. d. increase efficiency. e. produce administrative savings.

Last Answer : c. increase Labor Costs.

Description : Attempting to parallel an AC generator which is out of phase with the bus will result in which of the following problems? A. The breaker should trip. B. The KVA will decrease. C. The synchronizing lamps will burn out. D. The power factor will be unitized.

Last Answer : Answer: A

Description : Pick out the wrong statement. (A) Lead can creep under its own weight at room temperature (B) The electrical conductivity of gold is considerably reduced by alloying additions due to ... metal (D) With increase in temperature, the electrical conductivity of intrinsic semi-conductor will increase

Last Answer : (C) Recrystallisation temperature decreases with decrease in strain in a cold worked metal

Description : An increase in consumption at any given level of income will lead to (a) Higher aggregate demand. (b) An increase in exports. © A fall in taxation revenue. (d) A decrease in import spending.

Last Answer : (a) Higher aggregate demand.

Description : Two Commodities X and UY can be inferred as complementary to each other if (a) Increase in price of one leads to increase in demand of other and vice versa (b) Increase in price of one leads to decrease ... in demand of other one (d) Increase in price of one leads to increase in demand of other one

Last Answer : (b) Increase in price of one leads to decrease in demand of other and vice versa 

Description : Two commodities X and Y goods can be inferred as close substitute of each other if - (a) Increase in price of one leads to increase in demand of other and vice versa (b) Increase in price of one ... fall in demand of other one (d) Increase in price of one leads to increase in demand of other one

Last Answer : (a) Increase in price of one leads to increase in demand of other and vice versa 

Description : If the price elasticity of demand of Chicken is +.95. then a 20% increase in price of chicken will lead to in quantity demanded of chicken at that price (a) 19 increase ; (b) 19% decrease ; (c) 20.95% increase ; (d) 20.6% decrease

Last Answer : (a) 19 increase ; 

Description : Essential amino acids have been advocated as standard therapy for renal failure. Which of the following statements are true? A. Increased survival from acute renal failure has been reported ... BUN and creatinine to the same degree as solutions containing excessive nonessential amino acids.

Last Answer : Answer: BC DISCUSSION: Essential amino acids and hypertonic dextrose, as opposed to hypertonic dextrose alone, was reported by Abel and co-workers to be associated with a decreased mortality rate ... renal failure have not been carried out in sufficient numbers to yield answers to this question

Description : The usual cardiovascular effect of levodopa is: A. Bradycardia due to increased vagal tone B. Rise in blood pressure due to increased noradrenaline content of adrenergic nerve endings C. Fall in blood pressure due to decrease in sympathetic tone D. Both ‘A’ and ‘B’ are correct

Last Answer : C. Fall in blood pressure due to decrease in sympathetic tone

Description : If the illustrated motor fails to start and gives a loud hum when the start button is pushed, the problem is ________. EL-0007 A. one of the phases to the motor is not energized because of ... electrical distribution system D. 'OL1' is open because of 'T1' overload causing the motor to single phase

Last Answer : Answer: A

Description : Possible phase relationships between voltage and current in an alternating current circuit include which of the following conditions? A. Current and voltage may be in phase. B. Current may lead the voltage. C. Current may lag the voltage. D. All of the above.

Last Answer : Answer: D

Description : Which of the following statement(s) is/are true concerning oxygen kinetics in a critically ill, febrile patient? a. Oxygen consumption will likely exceed three times normal b. The high cardiac ... adequate compensation as long as the oxygen delivery/oxygen consumption rate is greater than 2:1

Last Answer : Answer: b, d In critically ill patients oxygen consumption may be elevated or depressed, but slight to moderate elevations in oxygen consumption is the most common abnormality in critically ill patients. ... however, and the patient will remain stable as long as the ratio is greater than 2:1

Description : Consider an instance of TCP's Additive Increase Multiplicative Decrease (AIMD) algorithm where the window size at the start of the slow start phase is 2 MSS and the threshold at the start of the first transmission is ... the end of the tenth transmission. a. 8 MSS b. 14 MSS c. 7 MSS d. 12 MSS

Last Answer : c. 7 MSS

Description : Recycling back of outlet stream to the reactor from an ideal CSTR carrying out a first order liquid phase reaction will result in __________ in conversion. (A) Decrease (B) Increase (C) No change (D) Either (A) or (B), depends on the type of reaction

Last Answer : (C) No change

Description : Pick out the wrong statement. (A) The conversion for a gas phase reaction increases with decrease in pressure, if there is an increase in volume accompanying the reaction (B) With ... phase reaction increases with increase in pressure, if there is a decrease in volume accompanying the reaction

Last Answer : (B) With increase in temperature, the equilibrium constant increases for an exothermic reaction

Description : The electrophysiological effects of digitalis on Purkinje fibres include the following except: A. Enhancement of resting membrane potential B. Decrease in the slope of phase-0 depolarization C. Increase in the rate of phase-4 depolarization D. Abbreviation of action potential duration

Last Answer : A. Enhancement of resting membrane potential

Description : Transmission efficiency of transmission line increases with the: a) Decrease in power factor and voltage b) Increases in power factor and voltage c) Increase in power factor and decrease in voltage d) Increase in the voltage but decrease in the power factor

Last Answer : Ans: B

Description : Which of the following actions must be carried out prior to closing the alternator circuit breaker according to the graph shown in the illustration? EL-0002 A. Increase the alternator voltage. B. Decrease the line voltage. C. Increase the line voltage. D. Decrease the line frequency.

Last Answer : Answer: A

Description : Which of the following statements describes what will occur if the motor shown in the illustration is required to carry 150% of full load? EL-0056 A. The primary counter emf will be increased. B. ... slip will decrease. D. The slip value, stator current curve, and torque curve will all coincide.

Last Answer : Answer: B

Description : An increase in the amount of current flow through the armature of a shunt motor is the final result of a/an _____________. A. increase in the load on the motor B. decrease in the load on the motor C. increase in counter EMF D. decrease in armature torque

Last Answer : Answer: A

Description : An AC generator produces 60 Hz at 1800 RPM. If the generator speed is increased to 1830 RPM, the cycles will _____________. A. remain at 60 Hz B. increase to 61 Hz C. decrease to 59 Hz D. increase to 63 Hz

Last Answer : Answer: B

Description : An alternator is being paralleled with one on the line. At the INSTANT the circuit breaker is closed, the frequency of the incoming alternator will normally _____________. A. increase B. not change C. decrease D. be exactly 60 hertz

Last Answer : Answer: C

Description : If the voltage applied to a moving disk frequency meter decreases, while the applied frequency remains the same, the frequency indication will _____________. A. increase B. decrease C. remain the same D. oscillate

Last Answer : Answer: C