Related Questions

In electric press, mica is used because it is _______ conductor of heat but/and________ conductor of electricity.
A bad, good
B bad, bad
C good, bad
D good, good
In which of the following industries is mica used as a raw material?
A Iron and steel
B Toys
C Glass and pottery
D Electrical
Where is the biggest reserve of mica?
A In South Africa
B In India
C In USA
D In Australia
In which of the following industries is mica as a raw material?
A Cement
B Glass and Pottery
C Iron and Steel
D Electrical
Dielectric strength of mica is
A 10 to 20 kV/mm
B 30 to 50 kV/mm
C 50 to 200 kV/mm
D 300 to 500 kV/mm
A mica capacitor and a ceramic capacitor both have the same physical dimensions. Which will have more value of capacitance ?
A Ceramic capacitor
B Mica capacitor
C Both will have identical value of capacitance
D It depends on applied voltage
Where in India is mica mined?
A Nasirabad (Rajasthan)
B Gaya (Bihar)
C Nellore (Andhra Pradesh)
D All the above
Dielectric constant for mica is nearly
A 200
B 100
C 3 to 8
D 1 to 2
Mica capacitors are characterised by all of the following except
A stable operation
B accurate value
C low leakage reactance
D low losses
Size reduction of asbestos and mica is done by
A Hammer mills
B Rod mills
C Gyratory crushers
D Crushing rolls

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