# ONLINE MCQ EE-ELECTRICAL INSTALLATION & WIRING 5

Q41. High tension cables are generally used
upto
A.  11 kV
B.  33 kV
C.  66 kV
D.  132 kV
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Q43. The insulation of the cable decreases
with
A.  the increase in length of the insulation
B.  the decrease in the length of the
insulation
C.  either (a) or (b)
D.  none of the above
 \$(document).ready(function(){ \$(‘#loaddata1625’).click(function(){ qid1625=\$(‘#qid1625’).val(); section1625=\$(‘#section1625’).val(); type1625=\$(‘#type1625’).val(); subtype1625=\$(‘#subtype1625’).val(); \$.post(‘../../fav’,{ qid:qid1625, section: section1625, type: type1625, subtype: subtype1625 },function(ajaxresult){ \$(‘#getrequest1625’).html(ajaxresult); qid1625=\$(‘#qid1625’).val(”); section1625=\$(‘#section1625’).val(”); type1625=\$(‘#type1625’).val(”); subtype1625=\$(‘#subtype1625’).val(”); }); }); }); Explanation:- Answer : A

Q44. If a power cable and a communication
cable are to run parallel the minimum
distance between the two, to avoid interference,
should be
A.  2 cm
B.  10 cm
C.  50 cm
D.  400 cm
 \$(document).ready(function(){ \$(‘#loaddata1626’).click(function(){ qid1626=\$(‘#qid1626’).val(); section1626=\$(‘#section1626’).val(); type1626=\$(‘#type1626’).val(); subtype1626=\$(‘#subtype1626’).val(); \$.post(‘../../fav’,{ qid:qid1626, section: section1626, type: type1626, subtype: subtype1626 },function(ajaxresult){ \$(‘#getrequest1626’).html(ajaxresult); qid1626=\$(‘#qid1626’).val(”); section1626=\$(‘#section1626’).val(”); type1626=\$(‘#type1626’).val(”); subtype1626=\$(‘#subtype1626’).val(”); }); }); }); Explanation:- Answer : C

Q45. The insulating material for a cable
should have
A.  low cost
B.  high dielectric strength
C.  high mechanical strength
D.  all of the above
 \$(document).ready(function(){ \$(‘#loaddata1627’).click(function(){ qid1627=\$(‘#qid1627’).val(); section1627=\$(‘#section1627’).val(); type1627=\$(‘#type1627’).val(); subtype1627=\$(‘#subtype1627’).val(); \$.post(‘../../fav’,{ qid:qid1627, section: section1627, type: type1627, subtype: subtype1627 },function(ajaxresult){ \$(‘#getrequest1627’).html(ajaxresult); qid1627=\$(‘#qid1627’).val(”); section1627=\$(‘#section1627’).val(”); type1627=\$(‘#type1627’).val(”); subtype1627=\$(‘#subtype1627’).val(”); }); }); }); Explanation:- Answer : D

Q46. In case of three core flexible cable the
colour of the neutral is
A.  blue
B.  black
C.  brown
D.  none of the above
 \$(document).ready(function(){ \$(‘#loaddata1628’).click(function(){ qid1628=\$(‘#qid1628’).val(); section1628=\$(‘#section1628’).val(); type1628=\$(‘#type1628’).val(); subtype1628=\$(‘#subtype1628’).val(); \$.post(‘../../fav’,{ qid:qid1628, section: section1628, type: type1628, subtype: subtype1628 },function(ajaxresult){ \$(‘#getrequest1628’).html(ajaxresult); qid1628=\$(‘#qid1628’).val(”); section1628=\$(‘#section1628’).val(”); type1628=\$(‘#type1628’).val(”); subtype1628=\$(‘#subtype1628’).val(”); }); }); }); Explanation:- Answer : A

Q47. The surge resistance of cable is
A.  5 ohms
B.  20 ohms
C.  50 ohms
D.  100 ohms
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Q48. If the length of a cable is doubled, its
capacitance
A.  becomes one-fourth
B.  becomes one-half
C.  becomes double
D.  remains unchanged
 \$(document).ready(function(){ \$(‘#loaddata1630’).click(function(){ qid1630=\$(‘#qid1630’).val(); section1630=\$(‘#section1630’).val(); type1630=\$(‘#type1630’).val(); subtype1630=\$(‘#subtype1630’).val(); \$.post(‘../../fav’,{ qid:qid1630, section: section1630, type: type1630, subtype: subtype1630 },function(ajaxresult){ \$(‘#getrequest1630’).html(ajaxresult); qid1630=\$(‘#qid1630’).val(”); section1630=\$(‘#section1630’).val(”); type1630=\$(‘#type1630’).val(”); subtype1630=\$(‘#subtype1630’).val(”); }); }); }); Explanation:- Answer : C

Q49. A cable carrying alternating current
has
A.  hysteresis losses only
B.  hysteresis and leakage losses only
C.  hysteresis, leakage and copper losses
only
D.  hysteresis, leakage, copper and friction
losses
 \$(document).ready(function(){ \$(‘#loaddata1631’).click(function(){ qid1631=\$(‘#qid1631’).val(); section1631=\$(‘#section1631’).val(); type1631=\$(‘#type1631’).val(); subtype1631=\$(‘#subtype1631’).val(); \$.post(‘../../fav’,{ qid:qid1631, section: section1631, type: type1631, subtype: subtype1631 },function(ajaxresult){ \$(‘#getrequest1631’).html(ajaxresult); qid1631=\$(‘#qid1631’).val(”); section1631=\$(‘#section1631’).val(”); type1631=\$(‘#type1631’).val(”); subtype1631=\$(‘#subtype1631’).val(”); }); }); }); Explanation:- Answer : B

Q50. Copper as conductor for cables is used
as
A.  annealed