Related InterviewSolutions

• An oscilloscope indicates ___________(a) The peak to peak value of the voltage(b) DC value of the voltage(c) Rms value(d) Average valueI had been asked this question in an interview.Origin of the question is Advanced Problems on CRT and CRO in portion Oscilloscopes of Electrical Measurements
• The two inputs of a CRO are fed with two stationary periodic signals. The figure changes from ellipse to circle and back to ellipse with its major axis changing orientation slowly and repeatedly. The following inference can be made from this.(a) The signals are not sinusoidal in nature(b) The amplitudes of the signals are very close but not equal(c) The signals are sinusoidal with their frequencies very close but not equal(d) There is a constant but small phase difference between the signalsThe question was posed to me in an interview for job.This interesting question is from Advanced Problems on CRT and CRO in division Oscilloscopes of Electrical Measurements
• A CRO probe has an impedance of 500 kΩ in parallel with a capacitance of 10 pF. The probe is used to measure the voltage between P and Q as shown in the figure. The measured voltage will be?(a) 3.53 V(b) 3.47 V(c) 5.54 V(d) 7.00 VThis question was addressed to me during an interview.I need to ask this question from Advanced Problems on CRT and CRO topic in section Oscilloscopes of Electrical Measurements
• A CRO uses _________(a) Electromagnetic focusing(b) Electrostatic focusing(c) Both Electrostatic and Electromagnetic focusing(d) No focusing techniqueI have been asked this question during an interview.Question is from Advanced Problems on CRT and CRO topic in chapter Oscilloscopes of Electrical Measurements
• To the Y input of a CRO, we feed a signal defined by 10sin100t, to the X-input, we feed signal 10cos100t. The gain for both X channel and Y channel is the same, the screen will show?(a) Sinusoidal signal(b) A straight line(c) An ellipse(d) A circleThe question was posed to me in an international level competition.My query is from Advanced Problems on CRT and CRO in portion Oscilloscopes of Electrical Measurements
• X and Y plates of a CRO are connected to unequal voltages of equal frequency with phase shift of 90°. The Lissajous figure on the screen will be?(a) Circle(b) Straight line(c) Ellipse(d) Figure of eightI had been asked this question in quiz.Enquiry is from Advanced Problems on CRT and CRO topic in chapter Oscilloscopes of Electrical Measurements
• A CRO can display _________(a) AC signals(b) DC signals(c) Both AC and DC signals(d) Time-invariant signalsThe question was posed to me in a job interview.This is a very interesting question from Advanced Problems on CRT and CRO in section Oscilloscopes of Electrical Measurements
• The source of emission of electrons in a circuit is ______________(a) p-n junction diode(b) a barium and strontium oxide coated cathode(c) accelerating anode(d) post-accelerating anodeThis question was addressed to me during an interview.My query is from Advanced Problems on CRT and CRO topic in division Oscilloscopes of Electrical Measurements
• A CRO is used in check __________(a) op amps(b) resistors(c) voltage(d) capacitance, inductance and diodesThe question was posed to me in an interview for job.I want to ask this question from Applications of CRO topic in portion Oscilloscopes of Electrical Measurements
• In a dual slop integrating type digital voltmeter, the firs integrating is carried out for 10 periods of the supply frequency of 50 Hz. If the reference voltage used is 2 V, the total conversion time for an input of 1 V is?(a) 0.01 s(b) 0.05 s(c) 0.1 s(d) 1 sThe question was asked in semester exam.The origin of the question is Advanced Problems on CRT and CRO in portion Oscilloscopes of Electrical Measurements