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

Questions

81 _____________ is also known as halftone storage or mersh storage.

A Variable persistence storage

B Bistable storage

C Flat storage

D CRT

View Answer

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

View Answer

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

View Answer

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

View Answer

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

View Answer

Answer: Another emf

86 Which of the following recorder gives slow response

A Galvanometric

B Magnetic

C X-Y recorder

D Oscillographic

View Answer

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

View Answer

Answer: Diffraction

88 Duration of rotation of pen in the PMMC system depends upon ___________

A Direction

B Magnitude

C Phase angle

D Frequency

View Answer

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

View Answer

Answer: mVsin?/eB

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