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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) Ramp Generator is used in ____________.

(a)A to D Conversion (b) D to A Conversion

(c) Both a and b (d) All of the above

(2) he scale of analo! ohmmeter is nonlinear because of nonlinear relation bet"een

 _________.

(a) Current # $n%no"n resistance (b) &olta!e # Resistance

(c)Both a # b (d) 'one of the above

() ________ meter "or%s on hot unction # cold unction phenomenon(a) *++C (b),lectrod-namo meter  

(c) hermocouple meter (d) 'one of the above

() he amplifier in analo! electronic &oltmeter is used to !et _________.

(b) /i!er 0i (b) /i!her sensitivit-

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(c) Both a # b (d) 'one of the above

() ________ Brid!e is used for measurement of lar!e values of resistance(a) heatstone (b) 3elvin

(c) +a4"ell (d) 'one of the above

(5) ________ Brid!e "ith little modification is used to locate faults in cable.

(a) heatstone (b) 3elvin

(c) +a4"ell (d) 'one of the above

  (6) ________Brid!e is used for measurement of 7nductance(a) heatstone (b) 3elvin

(c) +a4"ell (d) 'one of the above

  (8) __________ ransducers produce their o"n output volta!e from e4ternal stimulus

(a)9elf Generatin! (b) Resistance chan!in! ransducers

(c)Both a # b (d) 'one of the above

(:) ___________ displa-s "aveforms .

(a) CR; (b) 9i!nal Generator 

(c) Both a # b (d) 'one of the above

(1<) Basic =unction Generator produces a si!nal of _______ fre>uenc-.

(a) fe" /? to 2 +/? (b) fe" /? to 1< +/?

(c) fe" /? to 12 +/? (d) Both a and c

Ans"er the follo"in! short >uestion.

(1)Dra" the Bloc% Dia!ram of CR; (2.) _______________________________________________________________________ 

 _______________________________________________________________________ 

 _______________________________________________________________________ 

 _______________________________________________________________________ 

 _______________________________________________________________________ 

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 _______________________________________________________________________ 

 ______ 

(2)Dra" the Bloc% Dia!ram of ,lectronic DC &oltmeter . (2.)

 _______________________________________________________________________ 

 _______________________________________________________________________ 

 _______________________________________________________________________ 

 _______________________________________________________________________ 

 _______________________________________________________________________ 

 _______________________________________________________________________ 

 _______________________________________________________________________ 

 _______________________________________________________________________  _______________________________________________________________________ 

 _______________________________________________________________________ 

 __________ 

()rite some t-pes of Resistance Chan!in! ransducers. (2.)

 _______________________________________________________________________ 

 _______________________________________________________________________ 

 _______________________________________________________________________ 

 _______________________________________________________________________ 

 _______________________________________________________________________ 

 _______________________________________________________________________ 

 ______ 

)rite do"n the formula of calculatin! &p@p throu!h ;scilloscope (2.)

 _______________________________________________________________________ 

 _______________________________________________________________________ 

 _______________________________________________________________________ 

 _______________________________________________________________________ 

 _______________________________________________________________________ 

 _______________________________________________________________________ 

 ______ 

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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) A fault is located some"here on a 25 foot line . $se the &arle- oop est circuit of

fi!ure (b) "ith R1 1<<E R 1<<. 7n position 1 E R2 at balance "as 5.. 7n

 position 2 E R2 "as found to be 2<.. Determine the distance E 4E of the fault from

the test set.

(b) rite do"n the names of parameters to loo% after for selection of better transducer

and briefl- define of them

Question No. (10+10)

(a) A RA+* AFD Converter has a slope of 2&Fms and a cloc% fre>uenc- of <3/?. /o"

man- cloc% c-cles "ill be counted at the end of each conversion c-cle if the input .

(b) A series ;hmmeter usin! circuit of fi!ure (a) "ith a1<<A E 1<<< *++C

movementE has a batter- volta!e of 1. & . Determine the value of Rad to produce a

mid scale readin! of 1%

Question No.! (10+10)(a) 7f an AC &oltmeter of the avera!in! t-pe calibrated for sine "aves reads 5.2 R+9

"hen measurin! the volta!e of *ulse train determine (a) Correct R+9 &olta!eE (b)

*ea% &alue of aveform

(b) Dra" Bloc% Dia!ram of &olta!e to =re>uenc- Counter and e4plain it

.

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Question No." (10+10)

(a) A balanced 9imilar@an!le Brid!e li%e that of fi!ure (c) has the follo"in! values usin!

a 1<<3/? sine "ave source C1 <<p=E R1165E R2 82E R 1<%Determine (a) $n%no"n CapacitanceE (b) $n%no"n series resistance and (c)

Dissipation factor 

(b) Dra" construction dia!ram of Cathode ra- tube and briefl- 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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