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ESE EC Exam 2018: Practice Quiz 2
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Question 1
The ripple factor in case of a full-wave rectifier is.
Question 2
Consider the following statements related to a CMOS (Complementary metal oxide semiconductor) inverter.
1) It combines an n-channel and a p-channel MOS transistor.
2) For binary 1 input, both transistors are OFF.
3) For binary 0 input, both transistors are ON.
4) Whatever is the state of input, one transistor is ON while the other is OFF.
Which of the statements given above are correct?
1) It combines an n-channel and a p-channel MOS transistor.
2) For binary 1 input, both transistors are OFF.
3) For binary 0 input, both transistors are ON.
4) Whatever is the state of input, one transistor is ON while the other is OFF.
Which of the statements given above are correct?
Question 3
While executing a program 8085 microprocessor completes fetching of instruction JMP 2050 stored at address 2057 H. The contents of the program counter after fetching the instruction would be.
Question 4
Identification of highest priority interrupt can be achieved in a minimum time by which of the following schemes?
Question 5
In a satellite communication, the uplink power level is generally high and power level of the received down link signal is low because:
1). High signal attenuation due to free space loss.
2). Limited available down link power.
3). Finite satellite down link antenna gain, which is dictated by the required coverage area.
1). High signal attenuation due to free space loss.
2). Limited available down link power.
3). Finite satellite down link antenna gain, which is dictated by the required coverage area.
Question 6
Consider the following statements for TEM (Transverse Electro Magnetic) waves:
1) Only for TEM wave, could the conductor separation be small compared with a wavelength.
2) TEM mode needs to be considered at low frequencies.
3) TEM waves are usually not obeying Maxwell's equations
4) TEM waves are usually treated like 'ordinary transmission line signals'.
Which of the above statements are correct?
1) Only for TEM wave, could the conductor separation be small compared with a wavelength.
2) TEM mode needs to be considered at low frequencies.
3) TEM waves are usually not obeying Maxwell's equations
4) TEM waves are usually treated like 'ordinary transmission line signals'.
Which of the above statements are correct?
Question 7
It is required to match a 200 Ω load to a 450 Ω transmission line. To reduce the SWR along the line to 1, what must be the characteristic impedance of the quarter-wave transformer used for this purpose, if it is connected directly to the load?
Question 8
Which one of the following materials is not a piezoelectric material?
Question 9
Which one of the following materials has temperature coefficient of resistance very close to zero.
Question 10
Which among the following represents variable resistor?
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