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.Management Sciences
Category: SCR (Silicon Controlled Rectifiers)
An SCR combines the features of ____________?
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A. A rectifier and resistance
B. A rectifier and transistor
C. A rectifier and capacitor
D. None of the above
An SCR has three terminals viz ________________?
A. Cathode, anode, gate
B. Anode, cathode, grid
C. Anode, cathode, drain
D. None of the above
When SCR starts conducting, then _____________ loses all control?
A. Gate
B. Cathode
C. Anode
D. None of the above
If firing angle in an SCR circuit is increased, the output _____________?
A. Remains the same
B. Is increased
C. Is decreased
D. None of the above
An SCR is turned off by _________________?
A. Reducing anode voltage to zero
B. Reducing gate voltage to zero
C. Reverse biasing the gate
D. None of the above
An SCR behaves as a____________switch?
A. Unidirectional
B. Bidirectional
C. Mechanical
D. None of the above
When an SCR is turned on, the voltage across it is about _____________?
A. Zero
B. 10 V
C. 1 V
D. 1 V
We can control a.c. power in a load by connecting ______________?
A. Two SCRs in series
B. Two SCRs in parallel
C. Two SCRs in parallel opposition
D. None of the above
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