Taskbar is used for Start a program Navigation program All of above Switching between program TRUE ANSWER : ? YOUR ANSWER : ?
Which unit holds data permanently? Secondary storage unit Output Unit Input unit Primary Memory Unit TRUE ANSWER : ? YOUR ANSWER : ?
A Transformer _____ Steps up or down DC Voltages & Current Changes DC to AC Steps up or down AC Voltages & Current Changes AC to DC TRUE ANSWER : ? YOUR ANSWER : ?
As per Electricity Act, _____ means a process which simultaneously produces two or more forms of useful energy (including electricity). Captive Power Plant None of these Power generation Cogeneration TRUE ANSWER : ? YOUR ANSWER : ?
The main advantage of AC over DC is: Conversion flexibility from one voltage level to other AC can be easily converted into DC by using a rectifier AC is easy to maintain & can be easily distributed at long distances All of these TRUE ANSWER : ? YOUR ANSWER : ?
The transformer works on the principle of: Mutual induction Mutual capacitance None of these All of these TRUE ANSWER : ? YOUR ANSWER : ?
An _____ is a network of electrical components used to supply, transfer and use electric power: None of these All of these Electric power Electric power system TRUE ANSWER : ? YOUR ANSWER : ?
Cylindrical type transformer has: All of these Double magnetic circuit Single magnetic circuit None of these TRUE ANSWER : ? YOUR ANSWER : ?
A Step Up transformer : Steps down the level of current (a) and (b) only Steps up the level of Voltage Step up the level of Frequency TRUE ANSWER : ? YOUR ANSWER : ?
A relay used for protection of motors against overload is : Electromagnetic attraction type Buchholz's relay Thermal relay Impedance relay TRUE ANSWER : ? YOUR ANSWER : ?