A. logic 0 and 1 are represented by 0 and positive voltage respectively
B. logic 0 and, -1 are represented by negative and positive voltages respectively
C. logic 0 voltage level is higher than logic 1 voltage level
D. logic 0 voltage level is lower than logic 1 voltage level
Electrical Engineering Mcqs
Which of the following materials is preferred for transmitting electrical energy over long distance ?
A. Copper
B. Aluminium
C. Steel reinforced copper
D. Steel reinforced aluminium
Self charge of a Ni-Fe cell is _______ Edison cell
A. equal to
B. less than
C. more than
D. much more than
Bucket elevators are used for___________?
A. carrying coal in horizontal direction
B. carrying coal in vertical direction
C. carrying coal in any direction
In series resonance, there is__________________?
A. Voltage amplification
B. Current amplification
C. Both voltage and current amplification
D. None of the above
Which of the following motors is used in mixies ?
A. Repulsion motor
B. Reluctance motor
C. Hysteresis motor
D. Universal motor
In a transformer the energy is conveyed from primary to secondary_________?
A. through cooling coil
B. through air
C. by the flux
D. none of the above
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
Which of the following losses is not dissipated by the stator core surface in a synchronous motor?
A. Eddy current losses in the conductors
B. Iron losses in the stator
C. Copper losses in the slot portion of the conductors
D. Windage losses
E. None of the above
Selenium becomes a conductor in light so it behaves like____________?
A. Semiconductor
B. Photodiode
C. Light emitting diode
D. Capacitor
