Computer Programming MCQs

5739 MCQs  (Page 244 of 574)

In the normal operation of an SCR, anode is __________ w.r.t. cathode?
A. At zero potential
B. Negative
C. Positive
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 combines the features of ____________?
A. A rectifier and resistance
B. A rectifier and transistor
C. A rectifier and capacitor
D. None of the above
The normal way to turn on a SCR is by______________?
A. Breakover voltage
B. Appropriate anode current
C. Appropriate gate current
D. None of the above
An SCR is made of silicon and not germanium because silicon _________________?
A. Is inexpensive
B. Is mechanically strong
C. Has small leakage current
D. Is tetravalent
An SCR is a ____________ triggered device?
A. Voltage
B. Current
C. Voltage as well as current
D. None of the above
The covalent bond is formed by_______________?
A. Transfer of electrons between atoms
B. Sharing of electrons between atoms
E. Sharing of variable number of electrons by a variable number of atoms
D. None of the above