Ques:- In a closed room, if the door of refrigerator is left openwhat will be the effect on temperature in the room. explain.2. what is rift valley. Define.
Asked In :-
Right Answer:
1. If the door of the refrigerator is left open in a closed room, the temperature in the room will eventually increase. The refrigerator will work harder to cool itself, releasing heat into the room, which raises the overall temperature.
2. A rift valley is a lowland region that forms where tectonic plates move apart, creating a valley. It is characterized by steep sides and is often associated with volcanic activity.
1. If the door of the refrigerator is left open in a closed room, the temperature in the room will eventually increase. The refrigerator will work harder to cool itself, releasing heat into the room, which raises the overall temperature.
2. A rift valley is a lowland region that forms where tectonic plates move apart, creating a valley. It is characterized by steep sides and is often associated with volcanic activity.
Ques:- What is the diffrence betwen primary pumps and secondary pumps in aircoditioning field
Asked In :-
b&r industrial automation,
Ques:- How will you determine the short circuit capacity of a network
Asked In :-
robins air base,
Right Answer:
To determine the short circuit capacity of a network, you can use the following steps:
1. Identify the system voltage and configuration (e.g., single-phase or three-phase).
2. Gather data on the impedance of the network components (transformers, cables, and generators).
3. Calculate the total impedance from the source to the fault location.
4. Use the formula: Short Circuit Current (Isc) = Voltage (V) / Total Impedance (Z).
5. For three-phase systems, multiply the result by √3 for the line-to-line voltage.
This will give you the short circuit capacity in amperes.
To determine the short circuit capacity of a network, you can use the following steps:
1. Identify the system voltage and configuration (e.g., single-phase or three-phase).
2. Gather data on the impedance of the network components (transformers, cables, and generators).
3. Calculate the total impedance from the source to the fault location.
4. Use the formula: Short Circuit Current (Isc) = Voltage (V) / Total Impedance (Z).
5. For three-phase systems, multiply the result by √3 for the line-to-line voltage.
This will give you the short circuit capacity in amperes.
Ques:- WHY MOSTLY BATTERY VOLTAGE IS IN MULIPLE OF 2 LIKE2V,4V,8V,16V,18V….
Asked In :-
city of windsor, enphase energy,
Right Answer:
Battery voltages are often in multiples of 2 because they are based on the electrochemical cells used, which typically produce around 2 volts per cell. This allows for easy scaling and combination of cells to achieve higher voltages, such as 4V (2 cells), 6V (3 cells), 12V (6 cells), etc.
Battery voltages are often in multiples of 2 because they are based on the electrochemical cells used, which typically produce around 2 volts per cell. This allows for easy scaling and combination of cells to achieve higher voltages, such as 4V (2 cells), 6V (3 cells), 12V (6 cells), etc.
Ques:- ALSO ACs HAVE TWO POWERS (IN WATTS) WRITTEN ON THEIR NAME PLATES WHAT DOES EACH MEAN?
Asked In :-
jw consultants llp,
Ques:- Why a ballast and ignitor is required in MH and other lighting fixtures
Asked In :-
Ques:- What is infinite Busbar?
Asked In :-
Right Answer:
An infinite busbar is an idealized electrical bus that can absorb or supply unlimited power without any change in its voltage or frequency, effectively acting as a constant voltage source in power systems.
An infinite busbar is an idealized electrical bus that can absorb or supply unlimited power without any change in its voltage or frequency, effectively acting as a constant voltage source in power systems.
Ques:- What do you expect from our company?
Asked In :-
Force Motors,
Right Answer:
I expect a supportive work environment that fosters professional growth, opportunities to learn new skills, and the chance to contribute to meaningful projects that align with my expertise in quality engineering.
I expect a supportive work environment that fosters professional growth, opportunities to learn new skills, and the chance to contribute to meaningful projects that align with my expertise in quality engineering.
Ques:- What is the use of the shield wire and how is the connection at both the ends of a shield wire?
Ques:- IN AN OSCILLOSCOPE TWO COUPLING IS THERE, THAT IS AC & DC COUPLING, WHERE DO WE USE THESE COUPLINGS ?
Right Answer:
AC coupling is used to block DC components of a signal, allowing only the AC variations to be displayed, which is useful for analyzing small AC signals superimposed on a DC level. DC coupling is used to display both AC and DC components of a signal, allowing for the measurement of the entire waveform, including its DC offset.
AC coupling is used to block DC components of a signal, allowing only the AC variations to be displayed, which is useful for analyzing small AC signals superimposed on a DC level. DC coupling is used to display both AC and DC components of a signal, allowing for the measurement of the entire waveform, including its DC offset.
Ques:- How can i check vortex shedder bar it is ok? if there is ohms condition are shown correct?
Right Answer:
To check if the vortex shedder bar is okay, use a multimeter to measure the resistance across the bar. If the ohm readings are within the manufacturer's specified range, the bar is functioning correctly. If the readings are outside this range, the bar may be faulty.
To check if the vortex shedder bar is okay, use a multimeter to measure the resistance across the bar. If the ohm readings are within the manufacturer's specified range, the bar is functioning correctly. If the readings are outside this range, the bar may be faulty.
Ques:- What is a DLC?[just dont reply its a Dual loop controller!] Plz do Explain the advantage of DLC over PLC?
Asked In :-
Ques:- How bucchos relay works in a transformer
Asked In :-
Nordex,
Right Answer:
A Buchholz relay works by detecting gas and oil movement in a transformer. It is installed in the pipeline between the transformer and the conservator tank. When a fault occurs, such as a short circuit, it generates gas bubbles that rise to the relay. The relay has a float mechanism that triggers an alarm or disconnects the transformer if a certain level of gas is detected, indicating a fault condition.
A Buchholz relay works by detecting gas and oil movement in a transformer. It is installed in the pipeline between the transformer and the conservator tank. When a fault occurs, such as a short circuit, it generates gas bubbles that rise to the relay. The relay has a float mechanism that triggers an alarm or disconnects the transformer if a certain level of gas is detected, indicating a fault condition.
Ques:- Why root three is used and how its comes in three phase power system?
Ques:- Can any body explain the operation system of MVWS(May be related to water and fire hydraunt system)?
Asked In :-
Ques:- What should be the earth pit resistance value?
Asked In :-
Right Answer:
The earth pit resistance value should typically be less than 5 ohms.
The earth pit resistance value should typically be less than 5 ohms.
Ques:- Explain working of differential protection for a transformer?
Asked In :-
komatsu mining,
Right Answer:
Differential protection for a transformer works by comparing the current entering the transformer with the current leaving it. It uses current transformers (CTs) on both the primary and secondary sides. If the difference between these currents exceeds a predetermined threshold, indicating a fault (like a short circuit or internal fault), the protection relay activates and trips the circuit breaker to isolate the transformer from the system, preventing damage.
Differential protection for a transformer works by comparing the current entering the transformer with the current leaving it. It uses current transformers (CTs) on both the primary and secondary sides. If the difference between these currents exceeds a predetermined threshold, indicating a fault (like a short circuit or internal fault), the protection relay activates and trips the circuit breaker to isolate the transformer from the system, preventing damage.
