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What are the disadvantages of Open loop control system?
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Jul 4, 2019
by
anonymous
What are the disadvantages of Open loop control system?
open
loop
system
control
disadvantages
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Jul 4, 2019
by
anonymous
Open loop control system are less reliable.
In open loop control system Optimization is not possible.
Open loop control system are less accurate.
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Mar 10, 2018
by
anonymous
What are the advantages of open loop control system?
What are the advantages of open loop control system?
Last answer:
Open loop control system are simple to design. Open loop control system are generally stable.
advantages
open
loop
control
system
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1
answer
asked
Jun 18, 2018
by
anonymous
What will happen to the gain margin if the gain of the open loop system is doubled?
What will happen to the gain margin if the gain of the open loop system is doubled? A) Doubled B) Becomes half C) Is not affected D) Becomes one-fourth
Last answer:
What will happen to the gain margin if the gain of the open loop system is doubled? A) Doubled B) Becomes half C) Is not affected D) Becomes one-fourth
gain
margin
open
loop
system
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asked
Mar 10, 2018
by
anonymous
What is an example of an open loop system?
What is an example of an open loop system?
Last answer:
Open loop system. Ex. Electric heater, washing machine, fan, electric switch, etc
example
open
loop
system
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asked
Apr 30, 2018
by
anonymous
If the gain of the open loop system is doubled, the gain margin
If the gain of the open loop system is doubled, the gain margin (1) Is not affected (2) Gets doubled (3) Becomes half (4) Becomes one -forth
Last answer:
If the gain of the open loop system is doubled, the gain margin Becomes half
open
loop
system
doubled
gain
margin
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asked
Dec 4, 2017
by
anonymous
what is open loop and close loop control system?
what is open loop and close loop control system?
Last answer:
A) In open loop system the input is independent of output but output is depends on input. A-1. no feedback path in open loop s/m -2. less accuracy than close loop s/m. Ex. Washing ... -3. high accuracy. Ex. Air conditioner ( AC ), rocket launcher, radar system, etc
open
loop
close
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Aug 10, 2019
by
anonymous
What are advantages and disadvantages of Mechatronics system?
What are advantages and disadvantages of Mechatronics system?
Last answer:
Advantages of Mechatronics system: High level of integration. Increased functionality and better design. More use of electronics and software instead of mechanical function. Assumes ... Its replacement is difficult, that it is difficult to change old system to new system.
advantages
disadvantages
mechatronics
system
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Mar 10, 2018
by
anonymous
What are some examples of a closed loop system?
What are some examples of a closed loop system?
Last answer:
C.L s/m. EX. Air conditioner (AC), rocket launcher, radar system, voltage stabilizer etc.
examples
closed
loop
system
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asked
Apr 26, 2018
by
anonymous
Negative feedback in a closed-loop control system DOES NOT
Negative feedback in a closed-loop control system DOES NOT (A) reduce the overall gain (B) reduce bandwidth (C) improve disturbance rejection (D) reduce sensitivity to parameter variation
Last answer:
Negative feedback in a closed-loop control system DOES NOT reduce bandwidth
negative
feedback
closed-loop
control
system
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asked
May 22, 2020
by
anonymous
State advantages and disadvantages of radial distributor system.
State advantages and disadvantages of radial distributor system.
Last answer:
Advantages of radial distributor system: 1. Design of layout is simple. 2. Capital cost & Erecting cost is less as there is only one feeder. 3. Time required for completion of ... maintain supply to consumers when there is maintenance on feeder. 3. Voltage fluctuations are more.
advantages
disadvantages
radial
distributor
system
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28
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1
answer
asked
Mar 10, 2018
by
anonymous
What is the automatic control system?
What is the automatic control system?
automatic
control
system
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asked
Mar 10, 2018
by
anonymous
What is the difference between a line voltage and low voltage control system?
What is the difference between a line voltage and low voltage control system?
difference
between
line
voltage
low
control
system
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asked
Jun 28, 2020
by
anonymous
Draw the labeled block diagram of process control system and explain each block.
Draw the labeled block diagram of process control system and explain each block.
Last answer:
Explanation - Process control system consists of process or plant, sensor, error detector, automatic Controller, actuator or control element. 1) Process or plant- process means some manufacturing sequence ... process which changes the process variable. Output of this block is denoted by u .
block
diagram
process
control
system
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asked
Apr 28, 2018
by
anonymous
A unity negative feedback control system is found to have a gain margin of 20 dB. The Nyquist plot of the
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.
unity
negative
feedback
control
system
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asked
May 1, 2018
by
anonymous
A control system having unit damping factor will give
A control system having unit damping factor will give (1) Oscillatory response (2) Undamped response (3) Critically damped response (4) No response
Last answer:
1
control
system
unit
damping
factor
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2
answers
asked
Apr 30, 2018
by
anonymous
A differentiator is not usually used in control system, because it : -
A differentiator is not usually used in control system, because it : - (A) reduces damping (B) increases error (C) reduces gain margin (D) increases input noise
Last answer:
A differentiator is not usually used in control system, because it : - increases input noise
differentiator
used
control
system
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1
answer
asked
Mar 16, 2020
by
anonymous
Loop system
loop
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asked
Mar 10, 2018
by
anonymous
What are the advantages and disadvantages of automation?
What are the advantages and disadvantages of automation?
advantages
disadvantages
automation
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asked
Feb 11, 2018
by
anonymous
What are the disadvantages of linear regulator ?
What are the disadvantages of the linear regulator? how are they overcome in the switching regulator? What is continuous and discontinuous mode switching regulator?
Last answer:
Disadvantages of the linear regulator: Linear regulator waste power in the form of heat. Linear regulator has very low efficiency. Linear regulator cannot be used for the step ... between continuous mode and discontinuous mode switching regulator.
disadvantages
linear
regulator
switching
mode
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1
answer
asked
Dec 19, 2017
by
anonymous
What are the advantages and disadvantages of tidal power?
What are the advantages and disadvantages of tidal power?
Last answer:
Free of costPollution freeLong life Less maintenance
advantages
disadvantages
tidal
power
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1
answer
asked
Dec 19, 2017
by
anonymous
What are the advantages and disadvantages of wave energy?
What are the advantages and disadvantages of wave energy?
Last answer:
AdvantagesFree from pollutionAvailable for every timeThe water can reuse as drinking purposeDisadvantageMore costLarge maintenanceDifficult to constructAquatic life get affected
advantages
disadvantages
wave
energy
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2
answers
asked
Dec 19, 2017
by
anonymous
What are the advantages and disadvantages of solar energy?
What are the advantages and disadvantages of solar energy?
Last answer:
Free of costRenewable energyInextable solar energyLow energy densityHigh capital costMaintenance cost highDepends on weatherNeed to direction tracking
advantages
disadvantages
solar
energy
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1
answer
asked
Dec 19, 2017
by
anonymous
What are the disadvantages of using solar energy?
What are the disadvantages of using solar energy?
Last answer:
High installation costEnergy density is depend on weatherSo it is low Not suitable in all areasMaintenance cost high
disadvantages
solar
energy
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1
answer
asked
Dec 6, 2017
by
anonymous
what are the disadvantages of thyristor?
what are the disadvantages of thyristor?
Last answer:
Disadvantages of thyristor The silicon controlled rectifier (SCR) is unidirectional devices, so it can control power only in DC power during positive half cycle of AC supply. Thus only DC power is ... cycle. It cannot be used at higher frequencies. The gate current cannot be negative
disadvantages
thyristor
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2
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asked
Dec 19, 2017
by
anonymous
What are some disadvantages of hydroelectric power plant?
What are some disadvantages of hydroelectric power plant?
Last answer:
The disadvantages of the hydroelectric power plant are as follows :The hydroelectric power plant can be developed only where the large quantity of water is available. The hydroelectric ... civil engineering costs may be high.These are some disadvantages of the hydroelectric power plant.
disadvantages
hydroelectric
energy
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1
answer
asked
Jun 18, 2018
by
anonymous
Which waves are demodulated by Costas loop?
Which waves are demodulated by Costas loop? A) VSB B) SSB C) MSK D) DSBSC
Last answer:
Which waves are demodulated by Costas loop? A) VSB B) SSB C) MSK D) DSBSC
waves
demodulated
costas
loop
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1
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asked
Sep 26, 2017
by
anonymous
6.30 Consider the state variable model.
Problem number 6.30 from digital control and state variable methods by M Gopal (second edition)
Last answer:
Solution for 6.30
6
30
solution
control
system
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1
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asked
Mar 10, 2018
by
anonymous
What is the difference between a mesh and a loop?
What is the difference between a mesh and a loop?
difference
between
mesh
loop
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353
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answers
asked
May 8, 2018
by
anonymous
The main disadvantages of having poor power factors are:
The main disadvantages of having poor power factors are: (A) High cost of station and distribution equipment (B) Poor voltage regulation (C) High energy loss in conductor (D) All of the above
Last answer:
The main disadvantages of having poor power factors are: (A) High cost of station and distribution equipment (B) Poor voltage regulation (C) High energy loss in conductor (D) All of the above
disadvantages
poor
power
factors
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53
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1
answer
asked
Aug 4, 2019
by
anonymous
Write the application of the following antennas: 1) Rectangular antenna 2) Dish antenna 3) Horn antenna 4) Loop antenna 5) Yagi-Uda antenna.
Write the application of the following antennas: 1) Rectangular antenna 2) Dish antenna 3) Horn antenna 4) Loop antenna 5) Yagi-Uda antenna.
Last answer:
Applications: 1.Rectangular antenna i)Used in Mobile and satellite communication ii)Used in Global Positioning System iii) Used for Radio Frequency Identification (RFID) iv) Radar Dish ... antenna. 2. Yagi-Uda antenna is used in conditional Access System (CAS) at the decryptor.
antennas
rectangular
dish
antenna
horn
loop
yagi-uda
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1
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asked
Aug 8, 2018
by
anonymous
Explain the hysteresis loop of a magnetic material with neat diagram.
Explain the hysteresis loop of a magnetic material with neat diagram.
Last answer:
Hysteresis loop of magnetic material: The circuit arrangement for plotting the hysteresis loop is shown in figure given below. The electromagnetic part consists of a coil wound on the iron ring ... one magnetic reversal is called hysteresis loop. Meaning of hysteresis is to lag behind.
hysteresis
loop
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1
answer
asked
Jun 18, 2018
by
anonymous
The number of loop equations required to completely analysing a network comprising of 8 independent
The number of loop equations required to completely analysing a network comprising of 8 independent branches and 6 nodes including the reference node shall be A) 3 B) 2 C) 4 D) 5
Last answer:
The number of loop equations required to completely analysing a network comprising of 8 independent branches and 6 nodes including the reference node shall be 3
number
loop
equations
required
completely
analysing
network
comprising
independent
branches
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127
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1
answer
asked
Mar 25, 2018
by
anonymous
If the area of hysteresis loop of a material is large, the hysteresis loss in this material will be?
If the area of hysteresis loop of a material is large, the hysteresis loss in this material will be?
Last answer:
If the area of hysteresis loop of a material is large, the hysteresis loss in this material will be large.
area
hysteresis
loop
material
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216
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1
answer
asked
Apr 25, 2018
by
anonymous
A d.c. source has an open circuit voltage of 30 V and an internal resistance of 1.5 Ohm. A resistive load is ...
A d.c. source has an open circuit voltage of 30 V and an internal resistance of 1.5 Ohm. A resistive load is connected to the source. Maximum power dissipated in the load is (A) 300 W (B) 150 W (C) 45 W (D) 20 W
Last answer:
A d.c. source has an open circuit voltage of 30 V and an internal resistance of 1.5 Ohm. A resistive load is connected to the source. Maximum power dissipated in the load is 150 W
dc
open
circuit
voltage
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1
answer
asked
Sep 27, 2017
by
anonymous
in open circuit or no load test of transformer which side is open circuited?
Last answer:
High Voltage side is open circuited.
transformer
open
circuit
test
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91
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1
answer
asked
Sep 27, 2017
by
anonymous
in open circuit or no load test of transformer which side is low voltage side and which side is high voltage side?
Last answer:
Primary side is low voltage side and secondary side is high voltage side.
open
circuit
test
transformer
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94
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1
answer
asked
May 7, 2020
by
anonymous
State Magneto-striction. Draw Hysteresis loop for : (i) High silicon steel (ii) Copper (iii) Soft iron (iv) Wood
State Magneto-striction. Draw Hysteresis loop for : (i) High silicon steel (ii) Copper (iii) Soft iron (iv) Wood
Last answer:
Magneto-striction: It is the change in dimensions of ferro magnetic material when it is magnetized for eg. Silicon steel, iron or any ferromagnetic material. i) Hysteresis loop for High silicon steel : ... loop for Soft iron : iv) Hysteresis loop for Copper and Wood :
state
magneto-striction
draw
hysteresis
loop
for
i
high
silicon
steel
ii
copper
iii
soft
iron
iv
wood
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112
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1
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asked
Aug 17, 2019
by
anonymous
(i) Bilateral Network (ii) Node (iii) Loop (iv) Branch
(i) Bilateral Network (ii) Node (iii) Loop (iv) Branch
Last answer:
(i) Bilateral Network: If the characteristic of network (response or behavior) is independent of the direction of current through its elements in it, then the network is called as a bilateral network e. ... A part of an electric network which lies between two junctions or nodes is known as branch.
bilateral
network
node
loop
branch
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35
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1
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asked
Sep 7, 2018
by
anonymous
Explain how sinusoidal AC voltage is generated by using simple one loop generator.
Explain how sinusoidal AC voltage is generated by using simple one loop generator.
Last answer:
An electric current produced by means of electrical machine is known as generator which converts mechanical energy into electrical energy. When conductor cuts the magnetic flux, emf induced in it. (Faraday' ... upon position of armature. The nature of emf is alternating as shown by the waveform.
sinusoidal
ac
voltage
generated
simple
loop
generator
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1
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asked
Sep 2, 2018
by
anonymous
Define- (i) Node (ii) Loop for a DC circuit
Define- (i) Node (ii) Loop for a DC circuit
Last answer:
Ans: i) Node: A point or junction at which two or more elements of network are connected is called as node. ii) Loop: A closed path for flow of current in an electrical circuit is called loop.
node
loop
dc
circuit
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53
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1
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asked
Jun 29, 2019
by
anonymous
Describe the difference between an open circuit and a short circuit.
Describe the difference between an open circuit and a short circuit.
Last answer:
Open circuit means the wire is cut meaning power will not flow and close circuit means wire is not cut and hence power will flow.Short circuit is the same as close circuit
describe
the
difference
between
an
open
circuit
and
a
short
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views
3
answers
asked
Sep 6, 2018
by
anonymous
Why CT is never operated with an open secondary ?
Why CT is never operated with an open secondary ?
Last answer:
CT secondary should never be kept open because it will cause saturation of the core to a high level and very high voltage will appear across the secondary which can breakdown the insulation. One terminal of PT secondary is always grounded to avoid capacitive induction and for human safety
ct
operated
open
secondary
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66
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2
answers
asked
Mar 10, 2018
by
anonymous
What are the different types of control systems?
What are the different types of control systems?
different
types
control
systems
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55
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0
answers
asked
Dec 16, 2017
by
anonymous
What are the speed control methods of dc motor?
What are the speed control methods of dc motor?
Last answer:
Field control of DC motor Armature control of DC motor
speed
control
methods
dc
motor
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150
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2
answers
asked
Mar 10, 2018
by
anonymous
What are the electromagnetic waves used in remote control?
What are the electromagnetic waves used in remote control?
electromagnetic
waves
used
remote
control
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55
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0
answers
asked
Sep 8, 2018
by
anonymous
State the advantages and disadvantages of hydroelectric power plant.
State the advantages and disadvantages of hydroelectric power plant.
Last answer:
Advantages of Hydroelectric power plant:- 1. There is no air pollution and other environmental problems. 2. The fuel (water) is available freely. 3. No fuel transportation cost so; there is ... , this can force the relocation of large numbers of riverside cities, towns, villages & people.
advantages
disadvantages
hydroelectric
power
plant
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55
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1
answer
asked
Aug 19, 2019
by
anonymous
advantages and disadvantages of ICs.
advantages and disadvantages of ICs.
Last answer:
Advantages of ICs: 1.The physical size of an IC is extremely small (generally thousand times smaller) than that of discrete circuits. 2. The weight of an IC is very less as compared to that of ... is high 3. Power dissipation is limited. 4. ICs are very delicate and need extra care while handling
ics
advantages
disadvantages
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34
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1
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asked
Aug 8, 2019
by
anonymous
State advantages and disadvantages of fiber optic communication
State advantages and disadvantages of fiber optic communication
Last answer:
Advantage of fiber optic communication: 1.Greater information capacity/ higher bandwidth OFC's are capable of transmitting several gigabits per second over hundreds of miles allowing millions of ... are not flexible 7.Requiring more protection around the fiber cable compared with copper cable
advantages
disadvantages
fiber
optic
communication
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1
answer
asked
Aug 8, 2019
by
anonymous
State advantages and disadvantages of continuous wave Radar
State advantages and disadvantages of continuous wave Radar
Last answer:
Advantages continuous wave RADAR : 1.Single frequency transmission and hence narrow receiver bandwidth 2.Duty cycle is unity, so mean power can be as high as transmitters will permits. 3.Ability ... required for receiver and transmitter. 3.Cannot detect targets crossing its beam at right angles.
advantages
disadvantages
continuous
wave
radar
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asked
Aug 5, 2019
by
anonymous
State advantages & disadvantages of electromagnetic flow meter.
State advantages & disadvantages of electromagnetic flow meter.
Last answer:
Advantage: Provides wide linear range. 2) Ability to measure reverses flow. 3) Gives rapid response to flow changes. 4) No obstruction is created to flow. 5) It can handle corrosive as ... and pipe networks with relatively short inside diameters. 3) It is useful for electrically conducting fluid.
advantages
disadvantages
electromagnetic
flow
meter
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asked
Sep 8, 2018
by
anonymous
State any two advantages and two disadvantages of nuclear power plant.
State any two advantages and two disadvantages of nuclear power plant.
Last answer:
Disadvantages of Nuclear Power Plant: - 1. The capital cost of Nuclear power plant is very high as compare to other power plant of same capacity. 2. The erection & ... material could be released into the environment. Causing extensive damage to the mankind,animals and environment.
advantages
disadvantages
nuclear
power
plant
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104
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4
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...