Related Questions

The current coil of a wattmeter is connected to the CT of R-phase. The potential coil is connected across Y and B phases. The wattmeter measures
A Active power in R phase
B Active power of Y phase
C Reactive power of R phase
D Power proportional to 3 phase power if the load is balanced
কোনটির ক্ষেত্রে Two wattmeter method প্রযোজ্য-
A শুধুমাত্র balanced 3- ϕ সিস্টেমে
B শুধুমাত্র unbalanced 3- ϕ সিস্টেমে
C Balanced ও Unbalanced 3- ϕ সিস্টেমে
D শুধুমাত্র Y- সিস্টেম
A dynamometer wattmeter can be used for
A Only Direct Current
B Only Active Current
C Both A & B
D None of the above
The pressure coil of a wattmeter should be connected on the supply side of the current coil when
A Load impedance is high
B Load impedance is low
C Supply voltage is low
D None of the above
The resistance in the circuit of the moving coil of a dynamometer wattmeter should be
A almost zero
B low
C high
D none of the above
An induction wattmeter can be used for
A both D.C. and A.C.
B D.C. only
C A.only
D any of the above
In a low power factor wattmeter the compensating coil is connected
A in series with current coil
B in parallel with current coil
C in series with pressure coil
D in parallel with pressure coil
In a low power factor wattmeter the pressure coil is connected
A to the supply side of the current coil
B to the load side of the current coil
C in any of the two meters at connection
D none of the above
Reactors designed for propulsion applications are designed for
A Natural uranium
B Enriched uranium
C Pure uranium
D Any type of uranium
City High School must put together a debating team consisting of four debaters.There are candidates of equal ability : X,Y and Z who are all seniors; and A,B,C and D who are all juniors..The school requires that there should be two seniors and two juniors in the team.It is also necessary that all of the debaters be able to work with one another. *Debaters Y and A cannot work together. *Debaters Z and C cannot work together. *Debaters A and B cannot work together. If debater B is selected and debater Y is rejected,the team will consist of which foursome?
A X,Z,A and B
B X,Z,D and ?B
C X,Z,C and B
D None of these

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