Gilbert is the unit of?
(A) Magnetism carrying force
(B) electric carrying force
(C) Conductivity
(D) Electronegativity
Why it is not advisable to sleep under a tree at night?
(A) Release of less oxygen
(B) Release of more oxygen
(C) Release of carbon dioxide
(D) Release of carbon monoxide
Sleeping under a tree is not advisable at night, since photosynthesis does not occur, oxygen is not being produced by the trees. In addition to this, the trees continue respiring thereby causing the amount of carbon dioxide to be increased and the amount of oxygen to be reduced.
Silica is placed in gels?
(A) In the conservator
(B) Brother
(C) Bakolz relay
(D) Inside the tank
What is the coupling of primary and secondary coils in a transformer?
(A) Electrical
(B) Mechanical
(C) Magnetic
(D) All these
The secondary coil is also generating a magnetic field that is growing and shrinking just like the field in the primary coil. This coupling of magnetic energy between these two coils is called mutual induction.
Most commonly used motor in motor generator sets of high capacity?
(A) Cage Model Induction Motor
(B) synchronous motor
(C) DC Compounder Motor
(D) None of the above
The tendency nowadays is to use synduction or synchronous motors. The synduction motor resembles an induction motor but runs at synchronous speed.
The electron gun is the main part of?
(A) Cathode Ray Isoloscope
(B) Transistor tester
(C) Single Generator
(D) All of the above
The most common use of electron guns is in cathode-ray tubes, which were widely used in computer and television monitors before the advent of flat screen displays. Most color cathode-ray tubes incorporate three electron guns, each one producing a different stream of electrons.
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