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. ICs are generally made of Silicon Copper Germanium None 2. An SCR is made of silicon carbon germanium None 3. A pentavalent impurity has ........ valence electrons 6 4 5 3 None 4. Which one of the following is correct Transmitter located at the source of measurement Reciever is used to position the indicating element Both None 5. What is gain formula for inverting amplifier? 1+RF/R1 1–RF/R1 RF/R1 –RF/R1 None 6. The stabilization of operating point in potential divider method is provided by RC Consideration RE Consideration VCC Consideration None 7. The most commonly used semiconductor material is Silicon Mixture of silicon & germanium Germanium None 8. The number of diode in half wave rectifier is 2 4 3 1 None 9. The varactor is usually reverse-biased unbiased forward-biased in the breakdown region None 10. In servomechanism feedback can be classified as Negative feedback Either Positive feedback or Negative feedback Positive feedback None 11. What is pin number of three in IC 741 Non inverting pin negative Inverting pin positive None 12. The disadvantage of Base resistor method of transistor biasing is that it is complicated is sensitive to changes in β Provides high stability None 13. The capacitance of a varactor diode increases when reverse voltage across it breaks down increases decreases stores charge None 14. An advantage of a common emitter is It has high voltage gain It has high power gain It is a voltage follower None 15. When an input voltage of 1V is applied to an op-amp having Av=10^6 and bias supply of +15V,the output voltage is 15 V 15*10^6 V 10^6 V 15 uV None 16. The normal way to turn on an SCR is by appropriate gate current appropriate anode current breakover voltage None 17. The leakage current in CE arrangement is....... that in CB arrangement the same as more than less than None 18. Red LED is made of gallium arsenide gallium phosphide gallium arsenide phosphide None 19. Transistor Biasing is generally provided by a diode Bias battery Biasing circuit None 20. An SCR is made of silicon and not germanium because silicon is inexpensive is mechanically strong has small leakage current is tetravalent None 21. The maximum efficiency of full wave rectification is 100% 40.6% 81.2% 85.6% None 22. In an npn transistor, ....... are the minority carriers free electrons holes acceptor ions donor ions None 23. Servomechanism are classified on the basis of Operation of the open and close loop system Information sampled at the output of the system for comparison with the input instructions Construction of the open and close loop system None 24. A non-inverting op-amp a non-inverting input connection only has a non-inverting input and an inverting output has an inverting input and a non-inverting output None 25. Velocity feedback Opposes the demand input Prevents dead space errors Assists the demand input None 26. The reverse current in a diode is of the order of kA A mA μA None 27. E and I is a transformer which is used in servomechanism system for the purpose of Error rectifier Error detector Error amplifier None 28. A semiconductor has ........ temperature coefficient of resistance zero negative positive None 29. The output impedance of a transistor connected in ......... arrangement is the highest common emitter common base common collector None 30. Which mode of operation provides the best high frequency response? Base Collector Emitter None 31. A zener diode utilises ........ characteristic for its operation forward reverse both forward and reverse None 32. In a toroidal resistance transmitter indicator system, the power supply is connected to The rotor The resistor slab The brushes None 33. The input impedance of a transistor is high very high almost zero low None 34. The input offset current is usually Less than the input offset voltage Equal to zero Less than the input bias current Unimportant when a base resistor is used None 35. In servomechanism with positive feedback the returning signal Decreases the original signal Increases the original signal Depends on situation None 36. A hysteresis servo motor is used in a servomechanism because It has good starting characteristics Low inertia Good speed/voltage relationship None 37. The common-mode rejection ratio is Equal to the common-mode voltage gain As high as possible Equal to the voltage gain Very low None 38. An SCR behaves as a ............... switch Bidirectional Unidirectional Mechanical None 39. Device which converts one form of energy into another form is called ? Transducer Rectifier Amplifier None 40. The rotor of a desynn indicator is A permanent magnet An ac magnet An electromagnet 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