Related Questions

This group of alumino-silicate minerals is widely used in making electrical insulators
A Bauxite
B Chromite
C Manganese
D Mica
Which one of the following is used for preparing porcelain?
A Clay
B Feldspar
C Quartz
D All of these
Ball mills and tube mills with flint or porcelain balls are used for size reduction of
A Asbestos
B Rubber
C Non-metallic ores
D Limestone
Pin type insulators are generally not used for voltages beyond
A 1 kV
B 11 kV
C 22 kV
D 33 kV
The use of strain type insulators is made where the conductors are
A Dead ended
B At intermediate anchor towers
C Any of the above
D None of the above
Transmission line insulators are made of
A glass
B porcelain
C iron
D P.V.C.
Are the materials having electrical conductivity much less than most of the metals but much greater than that of typical insulators.
A Varistors
B Thermistor
C Semiconductors
D Variable resistors
Improper usages of words. choose the option which indicates the sentences in which the underlined word(s) has/have been used incorrectly. i. You need to hear both sides of the story before "making up" your mind. ii. We are "making up" more beds as some unexpected guests have come. iii. The curtains are "make up" of Indian silk.
A i only
B ii only
C iii only
D ii and iii only
He avoided making the same mistakes again. The word "making" is a/an-
A object
B auxiliary verb
C participle
D gerund
The cost of making x units is Y = 5x + 10 , the average cost of making 10 units is
A TK. 5
B TK. 6
C TK. 7
D TK. 8

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