Related InterviewSolutions

• Mass spectrometers are used to determine which of the following?(a) Composition in sample(b) Concentration of elements in sample(c) Relative mass of atoms(d) Properties of sampleI have been asked this question during an interview.The question is from Principle of operation of Mass Spectrometer in section Mass Spectrometer of Analytical Instrumentation
• In a mass spectrometer, the ion currents are measured using which of the following?(a) Scintillation counter(b) Ion counter(c) Electrometer tube(d) Electric fieldsI had been asked this question by my school teacher while I was bunking the class.The query is from Principle of operation of Mass Spectrometer in section Mass Spectrometer of Analytical Instrumentation
• The alternating voltage rf voltage is applied to which of the following?(a) All grids(b) Central grid(c) Alternate grids(d) None of the gridsThis question was posed to me in exam.This interesting question is from Radiofrequency Mass Spectrometer in chapter Mass Spectrometer of Analytical Instrumentation
• The resolution of the Bennet tube can be improved by using which of the following?(a) Sine wave rf signal(b) Square wave rf signal(c) Triangular wave rf signal(d) Random signalThe question was posed to me in examination.The doubt is from Radiofrequency Mass Spectrometer topic in division Mass Spectrometer of Analytical Instrumentation
• Which of the following detectors can be used for ions with short life time?(a) Faraday cup collector(b) Photographic plates(c) Micro-channel plate(d) Electron multiplier transducerThis question was addressed to me in examination.This intriguing question comes from Ion Transducers topic in portion Mass Spectrometer of Analytical Instrumentation
• All ions with the same number of charges will have __________(a) Same kinetic energy(b) Different kinetic energies(c) Same mass(d) Different massI have been asked this question in an online interview.The origin of the question is Tandem Mass Spectroscopy topic in section Mass Spectrometer of Analytical Instrumentation
• The electric sector field is not subject to hysteresis.(a) True(b) FalseI have been asked this question in an international level competition.My doubt stems from Magnetic Deflection Mass Spectrometer in chapter Mass Spectrometer of Analytical Instrumentation
• Who invented mass spectrometers?(a) J.J Thompson(b) Goldstein(c) Nikola Tesla(d) AstonI got this question in quiz.The query is from Principle of operation of Mass Spectrometer topic in section Mass Spectrometer of Analytical Instrumentation
• The evacuated tube is also known as which of the following?(a) Pulse tube(b) Detector tube(c) Drift tube(d) Acceleration tubeI got this question during a job interview.I want to ask this question from Time of Flight Mass Spectrometer topic in section Mass Spectrometer of Analytical Instrumentation
• Nier-Johnson geometry involves a deflection of which of the following radians in a radial electrostatic field analyser?(a) Π(b) Π/2(c) Π/3(d) Π/4The question was asked during an interview.This is a very interesting question from Magnetic Deflection Mass Spectrometer in division Mass Spectrometer of Analytical Instrumentation