Electrical Engineering Mcqs

When SCR starts conducting, then _____________ loses all control?

• (A)  Gate
• (B)  Cathode
• (C)  Anode
• (D)  None of the above

Answer

Submitted By :Ali Uppal

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

Answer

Submitted By :Ali Uppal

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

Answer

Submitted By :Ali Uppal

The control element of an SCR is ______________?

• (A)  Cathode
• (B)  Anode
• (C)  Anode supply
• (D)  Gate

Answer

Submitted By :Ali Uppal

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

Answer

Submitted By :Ali Uppal

An SCR behaves as a____________switch?

• (A)  Unidirectional
• (B)  Bidirectional
• (C)  Mechanical
• (D)  None of the above

Answer

Submitted By :Ali Uppal

In normal operation of an SCR, gate is _____________w.r.t. cathode?

• (A)  Positive
• (B)  Negative
• (C)  At zero potential
• (D)  None of the above

Answer

Submitted By :Ali Uppal

An SCR is sometimes called ____________?

• (A)  Triac
• (B)  Diac
• (C)  Unijunction transistor
• (D)  Thyristor

Answer

Submitted By :Ali Uppal

An SCR is a solid state equivalent of ______________?

• (A)  Triode
• (B)  Pentode
• (C)  Gas-filled triode
• (D)  Tetrode

Answer

Submitted By :Ali Uppal

An SCR has three terminals viz ________________?

• (A)  Cathode, anode, gate
• (B)  Anode, cathode, grid
• (C)  Anode, cathode, drain
• (D)  None of the above

Answer

Submitted By :Ali Uppal