Top Electrical Engg MCQ - 500+ MCQ
121
In control systems, if the roots of the characteristic equation lie exactly on the imaginary axis, the system is:
122
The capacitive reactance of a circuit is 60 Ohms, when it is supplied with a 50 Hz supply. What will be the value of capacitive reactance (in Ohms) of the same circuit, if it is supplied with a 60 Hz supply?
123
Series capacitors in transmission lines are of little use when
124
In parallel combination of capacitances, the equivalent capacitance is ____.
125
A Megger is specifically designed to measure:
126
The torque developed in a dc series motor in unsaturated magnetic circuit condition is– –
127
The Superposition theorem is essentially based on the concept of:
128
Which of the following is NOT related to transmission and distribution of electric power?
129
The skin effect in a transmission line depends upon:
130
In which single-phase motor, the rotor has no teeth or winding?
131
While a synchronous generator is supplying a zero power factor lagging load the armature reaction will be
132
In power systems, the Ferranti effect is experienced under which condition?
133
Which of the following type of lamp gives more illumination from low wattage?
134
In a synchronous motor hunting takes place
135
When reading an analog meter, looking at the pointer from an angle instead of straight on causes an error known as:
136
The fuse is installed in which of the following wire?
137
The ratio of total flux linkage to used flux is known as ……….
138
Fusing factor of fuse is always
139
A solenoid has a diameter of 6 cm and a length of 60 cm and it comprises of 7000 turns. Calculate the energy stored (in J) in the solenoid, if 10 A current flows through it.
140
Which of the following is not a constituent for making porcelain insulators?