Related Questions

In an electric press mica is used
A As an insulator
B As a device for power factor improvement
C For dielectric heating
D For induction heating
Which of the following is a good conductor of heat but bad conductor of electricity ?
A Asbestos
B Celluloid
C Straw Board
D Mica
Which of the following is a good conductor of heat but a bad conductor of electricity ?
A Celluloid
B Rubber
C Asbestos
D Mica
Which of the following is a good conductor of heat but a bad conductor of electricity?
A Celluloid
B Rubber
C Asbestos
D Mica
Silver, one of the first 'metal' used by 'humans' is an 'excellent' conductor of heat and 'electricity'.
A metal
B humans
C excellent
D electricity
Silver, one of the first 'metal' used by 'humans,' is 'an excellent' conductor of heat and 'electricity'
A metal
B humans
C an excellent
D electricity
If restated, the sentence, that would best replace 'As a conductor of heat and electricity, aluminium exceeds all metals except silver and gold.'
A Silver and gold are exceeded only by Aluminium as conductors of heat and electricity
B With the exception of aluminium, silver and gold are better than any other metal as conductors of heat and electricity
C Silver and gold are better conductors of hear and electricity than aluminium is
D Aluminium is a better conductor of heat and electricity than silver and gold
Pure water is bad conductor of electricity because it is
A Feebly ionized
B Not volatile
C A very good solvent
D A non-polar solvent
The electricity bill of a certain establishment is partially fixed and partially varies as the number of units of electricity consumed. Wen in a certain month 540 units are sonsumed. the bill is TK 1800. In another month 620 units are consumed are the bill is Tk 2040. Inayet another month if 500 units are consumed what would be the bill (in Tk) for that month?
A 1950
B 1560
C 1840
D 1680
Extended heat transfer surface like fins are used to increase the heat transfer rate. Fin efficiency is defined as the ratio of heat transferred across the fin surface to the theoretical heat transfer across an equal area held at the
A Surrounding temperature
B Average temperature of the fin
C Temperature of the fin end
D Constant temperature equal to that of the base

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