a) Equal to zero b) Less than now c) Equal to one d) More than one Ans: (d)
a) High specific resistance and high melting point b) High specific resistance and low melting point c) Low specific resistance and low melting point d) Low specific resistance and high melting point Ans: (d)
a) Increase b) Reduce c) Remain same d) May increase or decrease Ans: (b)
a) Maximum fusing current and rated voltage b) Maximum fusing current and rated current c) Minimum fusing current and rated current d) Minimum fusing current and rated voltage Ans: (c)
a) 25 A b) 50 A c) 75 A d) 100 A Ans: (d)
a) Maximum value actually reached b) R.m.s. value actually reached c) Average value actually reached d) None of these Ans: (a)
a) Aluminium b) Copper c) Iron d) Tin Ans: (b)
a) High rating of current b) High rupturing capacity c) High resistance capacity d) None of these Ans: (b)
a) 400 V b) 11 kV c) 20 kV d) 33 kV Ans: (d)
a) 33 kV b) 66 kV c) 132 kV d) 200 kV Ans: (c)
a) Steady load b) Fluctuating load c) A & b d) None of these Ans: (c)