Electronics and Instrumentation General Knowledge Quiz | Electronics and Instrumentation General Knowledge MCQs & Answers

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Questions
81 _____________ is also known as halftone storage or mersh storage.
A Variable persistence storage
B Bistable storage
C Flat storage
D CRT

Answer: Variable persistence storage
82 The resolution limit of electron microscope is
A 2 A.V
B 1 A.V
C 1.5 A.V
D 1.2 A.V

Answer: 1 A.V
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83 The slewing speed of X-Y recorder is
A 1.5 m/s
B 1.6 m/s
C 1.3 m/s
D 1.4 m/s

Answer: 1.5 m/s
84 In strip chart recorders, the self balancing potentiometers plot emf as a function of
A Time
B Pressure
C Another emf
D Frequency

Answer: Time
85 In X-Y recorders, the self balancing potentiometers plot emf as a function of
A Another emf
B Frequency
C Time
D Pressure

Answer: Another emf
86 Which of the following recorder gives slow response
A Galvanometric
B Magnetic
C X-Y recorder
D Oscillographic

Answer: Galvanometric
87 The shorter wave length of the electron permits the detailed examination of tiny objects due to reduction of ___________ effects
A Reflection
B Diffraction
C Refraction
D Polarization

Answer: Diffraction
88 Duration of rotation of pen in the PMMC system depends upon ___________
A Direction
B Magnitude
C Phase angle
D Frequency

Answer: Direction
89 In electron microscope the projection of the motion on a plane normal to magnetic induction (B) will be a circle of radius (r) =
A mVsin?+eB
B mVsin?/eB
C mVsin?-eB
D mVsin?*eB

Answer: mVsin?/eB

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