Countercurrent Braking of DC Shunt Motors Online Exam Quiz

Countercurrent Braking of DC Shunt Motors GK Quiz. Question and Answers related to Countercurrent Braking of DC Shunt Motors. MCQ (Multiple Choice Questions with answers about Countercurrent Braking of DC Shunt Motors

Braking resistance should be selected in order to limit the braking current.




C : -

D : -

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Calculate the bandwidth in series RLC circuit if the frequency is 20 Hz and the quality factor is 5.


A : 2 Hz

B : 4 Hz

C : 6 Hz

D : 8 Hz

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Calculate the current in DC shunt field winding using the following data: Ia=15 A, IL=21, R=22, N=484.


A : 4:00 AM

B : 2:00 AM

C : 7:00 AM

D : 6:00 AM

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Calculate the flux produced by the DC shunt field winding using the following data: Ia=5 A, IL=11, R=2, N=4.


A : 14 Wb

B : 12 Wb

C : 17 Wb

D : 18 Wb

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Calculate the overall voltage gain Gv of a common source amplifier for which gm = 2mA/V, RD = 10 k?, R0 = 10 k? and RG = 10 M?. The amplifier is fed from a signal source of Thevenin resistance of 0.5M? and the amplifier is coupled with a load of 10 k?.


A : -11.2 V/V

B : -22.4 V/V

C : -33.6 V/V

D : -44.8 V/V

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DC shunt motors are used where the high ___ is required.


A : Starting torque

B : Maximum torque

C : Minimum torque

D : Breakdown torque

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Find the value of gm at the bias point


A : 0.1 mA/V

B : 0.2 mA/V

C : .0.3 mA/V

D : 0.4 mA/V

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Find the value of RG so that iD = 0.1 mA, the largest possible value of RD is used while the maximum signal swing at the drain is of 1V and the input resistance at the gate is 10 M?.


A : 1 M?

B : 10 M?

C : 0.1 M?

D : 0.01 M?

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Full form of TVR is ___


A : Terminal voltage reversal

B : Total voltage reversal

C : Terminal voltage redirect

D : Total voltage reversal

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If terminal Z is grounded, X is connected to a signal source having a resistance of 1 M? and terminal Y is connected to a load resistance of 40 k?, find the voltage gain from the signal source to the load.


A : 3.25 v/V

B : 6.5 V/V

C : 9.75 V/V

D : 13 V/V

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