Module 4 B2 Module 4 B2 quiz contains 40 question based on the syllabus for module 4 examination for B2 category. The time limit for the quiz is 50 min. The number of attempts allowed are unlimited. All the best. Name 1. The disadvantage of Base resistor method of transistor biasing is that it is sensitive to changes in β is complicated Provides high stability None 2. In close loop system what are the advantages of replacing the human operator with automatic system as Automatic system is subject to fatigue Get quicker and less accurate reading Manpower saving None 3. If the input is a rectangular pulse, the output of an integrator is a Rectangular pulse Sine wave Ramp Square wave None 4. The universal bias stabilization circuit is most popular because Ic does not depend on the transistor characteristics Its Beeta instability is high Voltage divider is heavily loaded by transistor base None 5. When compared to a system that is constructed on one board, a modular system using Printed Circuit Boards (PCBs) is Easier to fault find Harder to fault find More expensive for spares None 6. In the design of a biasing circuit, the value of collector load RC is determined by VBE consideration IB consideration VCE consideration None 7. To display the digit 0 in a seven segment display all segments except G should be lighted G must be on F must be off A must be lighted None 8. If the value of the IC increases the value of the VCE Decreases remains same Increases None 9. The trip point of a comparator is the input voltage that causes The output to switch states Peak detection of the input signal The circuit to oscillate Clamping to occur None 10. A transistor at saturation has zero resistance low resistance high resistance None 11. What is value of V1 in virtual ground concept 5 1 0 None 12. What is pin number of three in IC 741 negative Non inverting pin Inverting pin positive None 13. In the depletion region of a pn junction, there is a shortage of acceptor ions holes and electrons donor ions None 14. The input offset current is usually Unimportant when a base resistor is used Less than the input bias current Equal to zero Less than the input offset voltage None 15. The most commonly used semiconductor material is Silicon Germanium Mixture of silicon & germanium None 16. In servomechanism with positive feedback the returning signal Depends on situation Decreases the original signal Increases the original signal None 17. The EMF induced in stator windings is out of phase with voltage applied to rotor R1-R2 at the angle of? 180 to 360 degree 270 to 360 degree 90 to 270 degree None 18. A decoupling capacitor in a PCB is used to minimize transient currents Pass AC & DC Pass AC only Pass DC only None 19. The collector of a transistor is ........ doped heavily lightly moderately None 20. Mechanical friction in a servo results in Increased inertia Increased damping Reduced gain None 21. The SiO2 layer in an IC acts as An insulating layer A resistor Mechanical output None 22. Solder with ____mm to ____ mm diameter can be used for PCB work 0.075mm-0.1mm 0.075mm-1mm 1mm-10mm 0.75mm-1mm None 23. In an SCR circuit, the supply voltage is generally............... that of breakover voltage greater than less than equal to None 24. Synchronous is the name given to Position sensing devices ALL Electromechanical devices Rotary devices None 25. An E&I bar output at datum has An imbalance of voltages in the secondary windings Equal and opposite voltages induced in the secondary No induced voltage in the secondary windings None 26. A differential synchro rotor has Three windings Two windings One winding None 27. The active components in an IC are Capacitors Resistors Transistors and diodes None 28. Which control system has less accuracy Positive feedback control system Open loop control system Closed loop control system Negative feedback control system None 29. A synchro transformer is used to Obtain a 26 volt ac reference Derive an error voltage from a synchro transmitter signal and a shaft position Add the output of two synchro transmitters None 30. What are the common defects can occur in servo system Short circuit All Incorrect wiring Power failure None 31. The common-mode rejection ratio is Equal to the voltage gain Very low As high as possible Equal to the common-mode voltage gain None 32. The input offset current equals the Difference between the two base-emitter voltages Difference between the two base currents Collector current divided by current gain Average of the two base currents None 33. The knee voltage of a crystal diode is approximately equal to applied voltage forward voltage breakdown voltage barrier potential None 34. In insulator , the energy gap between valence and conduction bands is 18 eV 0eV 15 eV 1eV None 35. The element that has the biggest size in a transistor is collector emitter base None 36. A differential synchro Can be used as either a transmitter or a receiver Can only be used as a transmitter Can only be used as a receiver None 37. What is pin number of two in IC 741 positive Inverting pin negative Non inverting pin None 38. The maximum efficiency of bridge wave rectification is 81.2% 40.6% 85.6% 100% None 39. When the temperature changes , the operating point is shifted due to Changes in Vcc Change in the value of circuit resistances Changes in ICBO None 40. In servomechanism feedback can be classified as Either Positive feedback or Negative feedback Positive feedback Negative feedback None 1 out of 1
sunil.v.rawat 29/12/2022 at 9:56 PM Hi We like to keep it like a quiz so we don’t disclose the answers if you have doubts you can send a message I will reply back with your doubts Since I teach at an AME clc as well I hope you would have passed mod 4 this time
answer key please
Hi
We like to keep it like a quiz so we don’t disclose the answers
if you have doubts you can send a message I will reply back with your doubts Since I teach at an AME clc as well
I hope you would have passed mod 4 this time
Nice question