- (A) 5 KHz
- (B) 10 KHz
- (C) 60 KHz
- (D) 100 KHz
Exam preparation MCQs with answers
Practice Pakistan's most useful MCQs for competitive exams
Prepare for NTS, PPSC, FPSC and subject-wise tests with fresh multiple choice questions, clear options and quick answer reveal.
Latest MCQs
- (A) One resistor across the string
- (B) Resistors of the same value across each SCR
- (C) Resistors of different values across each SCR
- (D) One resistor in series with each SCR
- (A) voltage clamping device.
- (B) fuse.
- (C) heat sink.
- (D) snubber circuit.
- (A) High power phase control
- (B) High power current control
- (C) Low power current control
- (D) Low power phase control
- (A) Vc1 > Vc2 > Vc3 when Ig1 > Ig2 > Ig3.
- (B) Vc1 > Vc2 > Vc3 when Ig1 < Ig2 < Ig3.
- (C) Vc1 = Vc2 = Vc3 any value of Ig.
- (D) Vc1 > Vc2 > Vc3 when Ig1 ≥ Ig2 &Atil
- (A) SIT
- (B) SITH
- (C) GTO
- (D) SCR
- (A) Forward voltage triggering
- (B) Gate triggering
- (C) dV / dt triggering
- (D) Thermal triggering
- (A) forward blocking mode
- (B) reverse blocking mode
- (C) both forward and reverse blocking mode
- (D) forward conduction mode
- (A) Recovery is only 5 µs
- (B) Recovery is only 50 µs
- (C) Doping is carried out
- (D) None of these
- (A) CB
- (B) Snubber circuit
- (C) Voltage clamping device
- (D) Fast acting current limiting device (FACL fuse)
