InterviewSolution

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1.	A galvanometer based recorder works on the principle of ________(a) Van der Wall’s effect(b) D’Arsonval movement(c) Paschen effect(d) Azhimuthal quatum numberI got this question in a national level competition.Origin of the question is Objectives and Requirements of Recording Data topic in portion Display Devices of Electrical Measurements
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2.	How many types of tracing systems are used in graphical representation?(a) two(b) five(c) ten(d) oneI got this question during an interview for a job.My question comes from Objectives and Requirements of Recording Data topic in section Display Devices of Electrical Measurements
Answer» Correct ANSWER is (a) two To explain I would say: There are two types of tracing SYSTEMS used in graphical REPRESENTATION. They are as follows: • CURVILINEAR SYSTEM • Rectilinear System.

3.	In a strip chart recorder ________(a) biological quantity is measured(b) chemical quantity is measured(c) physical quantity is measured(d) no quantity is measuredThe question was asked during an interview.The above asked question is from Objectives and Requirements of Recording Data topic in division Display Devices of Electrical Measurements
Answer» Right answer is (c) PHYSICAL QUANTITY is measured The explanation is: A strip chart recorder measures a physical quantity by making use of a continuous ROLL of chart PAPER at a constant SPEED.

4.	Basic elements of a strip chart recorder are ________(a) chalk and board(b) pen and pencil(c) pencil and paper(d) pen and chart paperThis question was addressed to me in an interview.This is a very interesting question from Objectives and Requirements of Recording Data in portion Display Devices of Electrical Measurements
Answer» Correct option is (d) PEN and chart PAPER The explanation is: 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.

5.	How many types of graphic recorders are there?(a) five(b) ten(c) three(d) oneThis question was posed to me in my homework.This interesting question is from Objectives and Requirements of Recording Data in division Display Devices of Electrical Measurements
Answer» CORRECT choice is (C) three Best explanation: There are three TYPES of graphic recorders. They are as follows: • Strip CHART recorder • Circular chart recorder • X-Y recorder.

6.	Efficiency of a recorder is determined using ________(a) paper(b) chart(c) voltmeter(d) oscilloscopeThe question was asked by my college professor while I was bunking the class.I'm obligated to ask this question of Objectives and Requirements of Recording Data topic in section Display Devices of Electrical Measurements
Answer» RIGHT option is (b) CHART Best 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.	Recorder is a ________(a) measuring instrument(b) voltage source(c) current divider(d) musical toolThe question was asked during an interview.The above asked question is from Objectives and Requirements of Recording Data topic in portion Display Devices of Electrical Measurements
Answer» Right choice is (a) MEASURING instrument Easiest explanation: Recorder is a measuring EQUIPMENT. A recorder is used to measure time varying QUANTITIES EVEN if the quantity has stopped.

8.	A physical quantity is recorded to preserve the details.(a) True(b) FalseThis question was posed to me during an interview for a job.I want to ask this question from Objectives and Requirements of Recording Data topic in chapter Display Devices of Electrical Measurements
Answer» The CORRECT option is (a) True Easy EXPLANATION: Physical quantity is recorded so as to PRESERVE some of the DETAILS of the quantity with time.

9.	Electronic recorders are of __________(a) 2 types(b) 4 types(c) 10 types(d) 15 typesThis question was addressed to me by my school teacher while I was bunking the class.Enquiry is from Objectives and Requirements of Recording Data topic in section Display Devices of Electrical Measurements
Answer» Right CHOICE is (a) 2 types To EXPLAIN I would say: Electronic RECORDERS are of two types. They are as follows: • Analog recorders • DIGITAL recorders.

10.	Non-electrical quantities are measured directly.(a) True(b) FalseThis question was posed to me in an online interview.Origin of the question is Objectives and Requirements of Recording Data topic in division Display Devices of Electrical Measurements
Answer» The correct OPTION is (b) False To explain: All non-electrical quantities are measured indirectly.The non-electrical quantities are converted into their equivalent VOLTAGES or currents using DIFFERENT TRANSDUCERS.