Welcome to your UPDA Electrical Engineering Exam Mock Test - 1
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Transformer saturation not only means the flux density cannot increase; it also has the unfortunate consequence of a sudden decrease in inductance. ... That is, when the transformer reaches saturation, a large current flows. This is the reason when transformer saturation is a problem in power supply design. So it reduces efficiency by resulting high no load losses.
An ideal flow of any fluid must fulfill the following
. An object having 10 kg mass weighs 9.81kg on a spring balance. The value of 'g' at this place is
Transformer saturation not only means the flux density cannot increase; it also has the unfortunate consequence of a sudden decrease in inductance. ... That is, when the transformer reaches saturation, a large current flows. This is the reason when transformer saturation is a problem in power supply design. So it reduces efficiency by resulting high no load losses.
In the receiver of a wireless system, we must amplify the received signal using:
The specific weight of water is 1000 kg/m"
Who is responsible for determining how tasks will be done in a matrix project management structure
An ideal transformer is an imaginary transformer which has. - no copper losses (no winding resistance) - no iron loss in core. - no leakage flux. In other words, an ideal transformer gives output power exactly equal to the input power.
When the flow parameters at any given instant remains same at every point, then flow is said to be
The tendency of a liquid surface to contract is due to the following property
The volumetric change of the fluid caused by a resistance is known as
Specific weight of water in S.I. units is equal to
The pressure at a point in a fluid will not be same in all the directions when the fluid is
Open circuit test on transformers is conducted to determine.
The value of mass density in kgsecVm4 for water at 0°C is
An ideal transformer is an imaginary transformer which has. - no copper losses (no winding resistance) - no iron loss in core. - no leakage flux. In other words, an ideal transformer gives output power exactly equal to the input power.
An ideal flow of any fluid must fulfill the following
Which of the following methods may be used to convert A.C. system to D.C:
Which of the following methods may be used to convert A.C. system to D.C:
Main cause of Humming in electrical transformer is the Magnetostriction Effect. Magnetostriction is a second source of vibration, in which the core iron changes shape minutely when exposed to magnetic fields.
- I = 5 Cos wt + 2 Cos wt, R=3 Ohms, Find the wattage:
An ideal flow of any fluid must fulfill the following
Specific weight of water in S.I. units is equal to
When the flow parameters at any given instant remains same at every point, then flow is said to be
The volumetric change of the fluid caused by a resistance is known as
The total electric flux through any closed surface surrounding charges is equal to the amount of charge enclosed:
An underground sytem is built for a military marine sytem with a normal voltage level. A following fault analysis design the insulation is most nearly the voltage level for which the insulation on the distribution sytem is designed
Which of the following is not one of the steps in the risk management process??
Which circuit breaker in commonly used in the distribution level?
Mercury does not wet glass. This is due to property of liquid known as
The normal stress in a fluid will be constant in all directions at a point only if
Open circuit test on transformers is conducted to determine.
Which circuit breaker in commonly used in the distribution level?
The value of mass density in kgsecVm4 for water at 0°C is
Transformer saturation not only means the flux density cannot increase; it also has the unfortunate consequence of a sudden decrease in inductance. ... That is, when the transformer reaches saturation, a large current flows. This is the reason when transformer saturation is a problem in power supply design. So it reduces efficiency by resulting high no load losses.
Specific weight of water in S.I. units is equal to
The volumetric change of the fluid caused by a resistance is known as
In the receiver of a wireless system, we must amplify the received signal using:
Open circuit test on transformers is conducted to determine.
When the flow parameters at any given instant remains same at every point, then flow is said to be
The value of mass density in kgsecVm4 for water at 0°C is
The volumetric change of the fluid caused by a resistance is known as
Which of the following methods may be used to convert A.C. system to D.C:
Density of water is maximum at
Who is responsible for determining how tasks will be done in a matrix project management structure
An ideal transformer is an imaginary transformer which has. - no copper losses (no winding resistance) - no iron loss in core. - no leakage flux. In other words, an ideal transformer gives output power exactly equal to the input power.
Which circuit breaker in commonly used in the distribution level?
The heat loss inside a straight conductor is 60J upon applying current I for 5s. If the resistance of the conductor is decrease to half, and the same current is applied for 5s, what will be the heat dissipation?
The volumetric change of the fluid caused by a resistance is known as
An ideal transformer is an imaginary transformer which has. - no copper losses (no winding resistance) - no iron loss in core. - no leakage flux. In other words, an ideal transformer gives output power exactly equal to the input power.
The pressure at a point in a fluid will not be same in all the directions when the fluid is
An ideal flow of any fluid must fulfill the following
An ideal flow of any fluid must fulfill the following
Who is responsible for determining how tasks will be done in a matrix project management structure
Main cause of Humming in electrical transformer is the Magnetostriction Effect. Magnetostriction is a second source of vibration, in which the core iron changes shape minutely when exposed to magnetic fields.
Open circuit test on transformers is conducted to determine.
In the receiver of a wireless system, we must amplify the received signal using:
The heat loss inside a straight conductor is 60J upon applying current I for 5s. If the resistance of the conductor is decrease to half, and the same current is applied for 5s, what will be the heat dissipation?
Mercury does not wet glass. This is due to property of liquid known as
Which of the following methods may be used to convert A.C. system to D.C:
Which circuit breaker in commonly used in the distribution level?
The heat loss inside a straight conductor is 60J upon applying current I for 5s. If the resistance of the conductor is decrease to half, and the same current is applied for 5s, what will be the heat dissipation?
Who is responsible for determining how tasks will be done in a matrix project management structure
In the receiver of a wireless system, we must amplify the received signal using:
Transformer saturation not only means the flux density cannot increase; it also has the unfortunate consequence of a sudden decrease in inductance. ... That is, when the transformer reaches saturation, a large current flows. This is the reason when transformer saturation is a problem in power supply design. So it reduces efficiency by resulting high no load losses.
