bsnl tta 2008 question papers BHARAT SANCHAR NIGAM Limited Telecom Technical Assistant

Bsnl tta 2008 question papers

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bsnl jto exam 2008 solved question paper Free Download

Bsnl jto exam 2008 solved question paper

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BSNL JTO Previous 2009 Year Question Paper with Answer

BSNL JTO Previous 2009 Year Question Paper with Answer

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BSNL TTA Exam Previous Years Question Papers Download

BSNL TTA Exam Previous Years Question Papers Download

(1) Instrument is a device for determining
(a) the magnitude of a quantity
(b) the physics of a variable
(c) either of the above
(d) both (a) and (b)
(2) Electronic instruments are preferred because they have
(a) no indicating part
(b) low resistance in parallel circuit
(c) very fast response
(d) high resistance in series circuit
(e) no passive elements.
(3) A DC wattmeter essentially consist of
(a) two ammeters
(b) two voltmeters
(c) a voltmeter and an ammeter
(d) a current and potential transformer
(4) Decibel is a unit of
(a) power
(b) impedance
(c) frequency
(d) power ratio
(5) A dc voltmeter may be used directly to measure
(a) frequency
(b) polarity
(c) power factor
(d)power
(6) An accurate voltmeter must have an internal impedance of
(a) very low value
(b) low value
(c) medium value
(d) very high value

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