A DC generator used for ARC welding should Have Straight characteristics Rising characteristics Dropping Characteristics None of these TRUE ANSWER : ? YOUR ANSWER : ?
What will be the value of average power (in Watt) of a sinusoidal voltage applied across a series circuit is 20 sinωt V and the current flowing the circuit is 10 sin(ωt + 60)A? 50 60 80 100 TRUE ANSWER : ? YOUR ANSWER : ?
What will be the equivalent capacitance (in mF) of three capacitors connected in a series having the capacitance of 0.04 mF, 0.08 mF, and 0.02 mF respectively? 0.011 0.065 0.032 0.026 TRUE ANSWER : ? YOUR ANSWER : ?
Calculate the induced emf (in V) in the inductor of a series RL circuit having the inductance of 1.8 H and resistance of 90 Ohms after 20 milli-seconds when supplied by a 20 V DC source 10.03 7.36 14.76 20 TRUE ANSWER : ? YOUR ANSWER : ?
A 40KVA transformer has a core loss of 450 W and total loss of 800 W. Find the copper loss for Maximum efficiency 350 W 800 W 300 W 450 W TRUE ANSWER : ? YOUR ANSWER : ?
A hysteresis Motor Need DC excitation Is a constant speed motor Can not be run in reverse speed Is not a self-starting motor TRUE ANSWER : ? YOUR ANSWER : ?
Which one of the material is used to fix the screw on concrete wall and ceiling? Rawl Plug Saddles Bushings Link clips TRUE ANSWER : ? YOUR ANSWER : ?
In the large machine, the flat copper strips known as Risers Bushes Windings Either of these TRUE ANSWER : ? YOUR ANSWER : ?
Determine the maximum flux density (in T) of a material having eddy current coefficient of 2, the thickness of 4 mm, the volume of 20 cu.meter, which is supplied by the frequency of 50 Hz when the material has eddy current loss of 6 W 1.21 2.24 1.94 3.34 TRUE ANSWER : ? YOUR ANSWER : ?
The cheapest system of wiring is Batten Wiring Cleat Wiring Conduit Wiring Casing and capping TRUE ANSWER : ? YOUR ANSWER : ?