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You Are On Multi Choice Question Bank SET 2696
134801. The magnetic field produced in the stator of a three phase induction motor rotates at------
(A): Rotating speed (B): Synchronous speed (C): Asynchronous speed (D): Slip speed
134802. The conduction in a JEFT is always by the:
(A): Minority carriers (B): Majority carriers (C): Holes (D): Electrons
134803. FET is:
(A): Unipolar device (B): Bipolar device (C): Half Power device (D): All of the above
134804. The Binary number system has a radix of:
(A): 10 (B): 2 (C): 16 (D): 8
134805. Class Y insulation temperature assigned----------Range
(A): 105 Degree C (B): 120 Degree C (C): 90 Degree C (D): 130 Degree C
134806. In an inductive load power factor:
(A): Zero (B): Leading (C): Lagging (D): Both
134807. Form factor of an Electric Current:
(A): 2 (B): 1.11 (C): 1.44 (D): 1.732
134808. Intermediate switches are used to control:
(A): One lamp two places (B): One lamp one place (C): 2 lamp one place (D): More lamp from different places
134809. What is used for making guide holes drilling in metals?
(A): Centre punch (B): Ratchet Brace (C): Auger-bit (D): Hand Drill
134810. Upto how much voltage is medium?
(A): Upto 250 V (B): Upto 560 V (C): Upto 1100 V (D): Upto 440 V
134811. Nichrome is widely used for:
(A): Transformer winding (B): Circuit connections (C): Heater coils (D): Lamp filaments
134812. The resistance of a conductor on increasing the temperature:
(A): Increases (B): Decreases (C): Constant (D): Varies
134813. The unit for flux density is:
(A): Henry/m^2 (B): Newton/m^2 (C): Webers/m^2 (D): None of the above
134814. The magnetic potential in a magnetic circuit can be measured in terms of:
(A): Farads (B): Coulombs (C): EMF (D): MMF
134815. Which one of the following capacitors is only suitable for direct voltage?
(A): Aluminium full capacitor (B): Metalic paper capacitor (C): Unpoled aluminium electrolyte capacitor (D): Poled aluminium electrolyte capacitor
134816. Which resistor is commonly used for general purpose application?
(A): Wire-wound resistors (B): Carbon resistors (C): Metal film resistors (D): Carbon film resistors
134817. To solder resistors on a PCB the soldering iron wattage should be:
(A): 25 (B): 60 (C): 150 (D): 240
134818. Intermediate frequency transformers use:
(A): Iron core (B): Ferrite core (C): Air core (D): Both iron core and Air core
134819. In a DC circuit capacitor acts like a:
(A): Open circuit (B): Inductance (C): Short Circuit (D): Resistance whose value depends on the dielectric material
134820. Which one of them is not a semi conductor?
(A): Silicon (B): Germanium (C): Carbon (D): Galium arsenide
134821. The process of adding impurities to a pure semiconductors is known as:
(A): Diffusion (B): Forming (C): Doping (D): Etching
134822. When a germanium diode is connected in forward biased mode the voltage across the diode will be:
(A): Zero (B): 0.7 Volt (C): Equal to applied voltage (D): 0.3 Volt
134823. The function of a diode can be compared with a:
(A): Replay (B): Switch (C): Inductor (D): Fuse
134824. Try square is used for:
(A): Measuring length of job (B): Checking squareness of job (C): Measuring the width of job (D): Checking curved part of the job
134825. Steel contains 8 to 5% carbon,is known as:
(A): Mild steel (B): Dead mild steel (C): Medium carbon steel (D): High carbon steel
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