Related Questions

An automatic toaster is a ______ loop control system.
A open
B closed
C partially closed
D any of the above
In a simple circuit, one end of a conducting wire is attached to an electric cell, and the other end to an electric outlet
A battery
B faucet
C socket
D appliance
Electric intensity at any point in an electric field is equal to the at that point.
A electric flux
B magnetic flux density
C potential gradient
D none of the above
An electric furnace producing heat by means of an electric arc struck between each of three electrodes and the charge is called __________ furnace.
A Resistance
B Arc
C Low frequency induction
D None of these
In what time will atrain 100 meters long cross an electric pole, if its speed is 144 km/hr.?
A 5 seconds
B 4.5 seconds
C 3 seconds
D 2.5 seconds
Electric bulb filament is made of :
A Copper
B Aluminum
C Zinc
D Tungsten
a box contains 20 electric bulbs , out of which 4 are defective . 2 bulbs are chosen at random from this box . The probability that at least one of these is defective is
A 7/19
B 6/19
C 5/19
D 3/19
A box contains 20 electric bulbs, out of which 4 are defective. Two bulbs are chosen at random form this box. The probability that at least one of these is defective is ___
A 7/19
B 6/19
C 5/19
D 3/19
Determine power rating of an electric motor if it runs at 1440 rpm and line shaft transmits torque of 75 Nm. Assume Reduction ratio =1.6
A 10.36 kW
B 11.3 kW
C 7.068kW
D 9.12kW
A box contains 10 electric bulbs from which 2 bulbs are defective . Two bulbs are chosen at random. What is the probability that one of them is defective?
A 3/10
B 16/45
C 25/68
D 8/33

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