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DE P A R T M E N T O F  ELE CTR ICAL  ENGINE E R ING

SUPERIOR UNIVERSITY LAHORE

END-TERM EXAMINATION SUBJECT: INSTRUMENTATION AND MEASUREMENT

COURSE CODE: EE-314

TIME ALLOWED: 25 MIN

DATED: --- JUNE2013

MAX. MARKS: 20

STUDENT ID. ______________ NAME:__________________________ 

PART-I

Question No 1: In the following choose the best answer (Each question contains 1 mark)

(1) The amplifier in analog electronic Voltmeter is used to get _________.

(a) Higer Zi (b) Higher sensitivity

(c) Both a b (d) !one of the above

(") The scale of analog ohmmeter is nonlinear because of nonlinear relation bet#een

 _________.

(b) $urrent %n&no#n resistance (b) Voltage 'esistance

(c)Both a b (d) !one of the above

() ________ meter #or&s on hot unction cold unction phenomenon(a) *++$ (b),lectrodynamo meter  

(c) Thermocouple meter (d) !one of the above

(-) 'amp enerator is used in ____________.

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(a)/ to 0 $onversion (b) 0 to / $onversion

(c) Both a and b (d) /ll of the above

() ________ Bridge is used for measurement of large values of resistance(a) 2heatstone (b) 3elvin

(c) +a4#ell (d) !one of the above

(5) ________ Bridge #ith little modification is used to locate faults in cable.

(a) 2heatstone (b) 3elvin

(c) +a4#ell (d) !one of the above

  (6) ________Bridge is used for measurement of 7nductance

(a) 2heatstone (b) 3elvin

(c) +a4#ell (d) !one of the above

  (8) __________ Transducers produce their o#n output voltage from e4ternal stimulus

(a)9elf enerating (b) 'esistance changing Transducers

(c)Both a b (d) !one of the above

(:) ___________ displays #aveforms .(a) $'; (b) 9ignal enerator 

(c) Both a b (d) !one of the above

(1<) Basic =unction enerator produces a signal of _______ fre>uency.

(a) fe# H? to " +H? (b) fe# H? to 1< +H?

(c) fe# H? to 1" +H? (d) Both a and c

/ns#er the follo#ing short >uestion.

(1)0ra# the Bloc& 0iagram of $'; (".) _______________________________________________________________________ 

 _______________________________________________________________________ 

 _______________________________________________________________________ 

 _______________________________________________________________________ 

 _______________________________________________________________________ 

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 _______________________________________________________________________ 

 ______ 

(")0ra# the Bloc& 0iagram of ,lectronic 0$ Voltmeter . (".)

 _______________________________________________________________________ 

 _______________________________________________________________________ 

 _______________________________________________________________________ 

 _______________________________________________________________________ 

 _______________________________________________________________________ 

 _______________________________________________________________________ 

 _______________________________________________________________________  _______________________________________________________________________ 

 _______________________________________________________________________ 

 _______________________________________________________________________ 

 __________ 

()2rite some types of 'esistance $hanging Transducers. (".) _______________________________________________________________________ 

 _______________________________________________________________________ 

 _______________________________________________________________________ 

 _______________________________________________________________________ 

 _______________________________________________________________________ 

 _______________________________________________________________________ 

 ______ 

-)2rite do#n the formula of calculating Vp@p through ;scilloscopeA (".)

 _______________________________________________________________________ 

 _______________________________________________________________________ 

 _______________________________________________________________________ 

 _______________________________________________________________________ 

 _______________________________________________________________________ 

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 _______________________________________________________________________ 

 ______ 

END-TERM E*AMINATION IN E(E+TRI+A( EN,INEERIN,$ SPRIN,  2013

DE PARTME NT  OF  ELE CTR ICAL  ENGINE E R ING

SUPERIOR UNIVERSITY, LAHORE+OURSE +ODE: EE-314 SUJE+T: INSTRUMENTATION AND MEASUREMENT

 TIME A((O/ED: 145 MIN MA*. MARS: 0

Question No.1 (10+10)

(a) 7f an /$ Voltmeter of the averaging type calibrated for sine #aves reads 5.-" '+9

#hen measuring the voltage of *ulse train determine (a) $orrect '+9 Voltage (b)

*ea& Value of 2aveform.

(b) 0ra# Bloc& 0iagram of Voltage to =re>uency $ounter and e4plain it.

Question No. (10+10)

(a) / '/+* /C0 $onverter has a slope of "VCms and a cloc& fre>uency of <3H?. Ho#

many cloc& cycles #ill be counted at the end of each conversion cycle if the input .

(b) / series ;hmmeter using circuit of figure (a) #ith a1<<D/ 1<<<E *++$

movement has a battery voltage of 1. V . 0etermine the value of 'ad to produce a

mid scale reading of 1&E

Question No.! (10+10)(a) / fault is located some#here on a "5 foot line . %se the Varley Foop Test circuit of

figure (b) #ith '1 G 1<<E ' G 1<<E. 7n position 1 '" at balance #as 5.E. 7n

 position " '" #as found to be "<.-E. 0etermine the distance F4 of the fault from

the test set

(b) 2rite do#n the names of parameters to loo& after for selection of better transducer

and briefly define of them.

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Question No." (10+10)

(a) / balanced 9imilar@angle Bridge li&e that of figure (c) has the follo#ing values using

a 1<<3H? sine #ave source $1G <<p= '1G165E '"G 8"-E ' G 1<&E0etermine (a) %n&no#n $apacitance (b) %n&no#n series resistance and (c)

0issipation factor 

(b) 0ra# construction diagram of $athode ray tube and briefly define each part of it

#igure $

#igure %

#igure &

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#igure '

#igure E

#igure #

#igure

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#igure

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