Updated Display Devices ( Electrical Measurements ) MCQs – Electrical Measurements MCQs
Latest Electrical Measurements MCQs
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Electrical Measurements MCQs – Display Devices ( Electrical Measurements ) MCQs
The most occurred mcqs of Display Devices ( ) in past papers. Past papers of Display Devices ( Electrical Measurements ) Mcqs. Past papers of Display Devices ( Electrical Measurements ) Mcqs . Mcqs are the necessary part of any competitive / job related exams. The Mcqs having specific numbers in any written test. It is therefore everyone have to learn / remember the related Display Devices ( Electrical Measurements ) Mcqs. The Important series of Display Devices ( Electrical Measurements ) Mcqs are given below:
Objectives and Requirements of Recording Data
1. Electronic recorders are of __________
a) 2 types
b) 4 types
c) 10 types
d) 15 types
Explanation: Electronic recorders are of two types. They are as follows:
• Analog recorders
• Digital recorders.
2. Non-electrical quantities are measured directly.
Explanation: All non-electrical quantities are measured indirectly. The non-electrical quantities are converted into their equivalent voltages or currents using different transducers.
3. A physical quantity is recorded to preserve the details.
Explanation: Physical quantity is recorded so as to preserve some of the details of the quantity with time.
4. How many types of graphic recorders are there?
Explanation: There are three types of graphic recorders. They are as follows:
• Strip chart recorder
• Circular chart recorder
• X-Y recorder.
5. Recorder is a ________
a) measuring instrument
b) voltage source
c) current divider
d) musical tool
Explanation: Recorder is a measuring equipment. A recorder is used to measure time varying quantities even if the quantity has stopped.
6. Efficiency of a recorder is determined using ________
Explanation: The recorder efficiency is determined by means of a chart. Generally chart recorders are of three types. They are X-Y recorder, strip chart recorder and a circular chart recorder.
7. In a strip chart recorder ________
a) biological quantity is measured
b) chemical quantity is measured
c) physical quantity is measured
d) no quantity is measured
Explanation: A strip chart recorder measures a physical quantity by making use of a continuous roll of chart paper at a constant speed.
8. Basic elements of a strip chart recorder are ________
a) chalk and board
b) pen and pencil
c) pencil and paper
d) pen and chart paper
Explanation: The basic elements of a strip chart recorder are pen and chart paper for recording data. Input data is recorded on a chart paper through the following methods:
• Pen and ink stylus
• Impact printing
• Chopper bar printing
• Thermal writing
• Electric writing
• Optical writing.
9. How many types of tracing systems are used in graphical representation?
Explanation: There are two types of tracing systems used in graphical representation. They are as follows:
• Curvilinear System
• Rectilinear System.
10. A galvanometer based recorder works on the principle of ________
a) Van der Wall’s effect
b) D’Arsonval movement
c) Paschen effect
d) Azimuthal quantum number
Explanation: D’Arsonval movement forms the basis for the working of a galvanometer type recorder. When current passes through the coil, deflection is produced by the galvanometer.