[{"id":156507,"question":"The highest value reached by the voltage or current:","choices":[{"text":"In quarter cycle is called Instantaneous value","value":"A"},{"text":"In half cycle is called peak-to-peak value","value":"B"},{"text":"In one cycle is called peak value","value":"C"},{"text":"In half cycle is called Instantaneous value","value":"D"},{"text":"None of these","value":"E"}],"correctAnswer":3},{"id":156501,"question":"The entire wave form of sinusoidal voltage is actually a set of all the:","choices":[{"text":"Positive maximum value + V<sub>o</sub>and negative maximum value -V<sub>o</sub>","value":"A"},{"text":"Posiotive maximum value +V<sub>o </sub>and zero","value":"B"},{"text":"Zero and negative maximum value -V<sub>o</sub>","value":"C"},{"text":"Any of these","value":"D"},{"text":"None of these","value":"E"}],"correctAnswer":1},{"id":156497,"question":"The waveform of alternating voltage is a:","choices":[{"text":"Square","value":"A"},{"text":"Rectangular","value":"B"},{"text":"Saw-tooth","value":"C"},{"text":"Sinusoidal","value":"D"},{"text":"None of these","value":"E"}],"correctAnswer":4},{"id":156496,"question":"The wave form of alternating voltage is the graph between:","choices":[{"text":"Voltage across X-axis and time across y-axis","value":"A"},{"text":"Current and time","value":"B"},{"text":"Voltage along y-axis and time along x-axis","value":"C"},{"text":"Voltage and current","value":"D"},{"text":"Either (B) or (D)","value":"E"}],"correctAnswer":3},{"id":156493,"question":"The most common source of alternating voltage is:","choices":[{"text":"Motor","value":"A"},{"text":"Transformer","value":"B"},{"text":"AC genrator","value":"C"},{"text":"Both (A) and (C)","value":"D"},{"text":"Both (A) and (B)","value":"E"}],"correctAnswer":3},{"id":156490,"question":"The time interval during which the Voltage source changes its polarity once is known as:","choices":[{"text":"Time period T","value":"A"},{"text":"Half the time period","value":"B"},{"text":"Quarter the time period","value":"C"},{"text":"Two third of the time period","value":"D"},{"text":"None of these","value":"E"}],"correctAnswer":1},{"id":156487,"question":"Nowadays, Most of the electric energy is produced by the A.C. generators using:","choices":[{"text":"Hydal water","value":"A"},{"text":"Geothermal energy","value":"B"},{"text":"Solar energy","value":"C"},{"text":"Biomass","value":"D"},{"text":"Both (B) and (D)","value":"E"}],"correctAnswer":1},{"id":156484,"question":"Alternating current is produced by a voltage source which polarity:","choices":[{"text":"Remains the same","value":"A"},{"text":"Reverse after period T","value":"B"},{"text":"Keeps on reversing with time","value":"C"},{"text":"Reverse after every time interval T/2","value":"D"},{"text":"Both (C) and (D)","value":"E"}],"correctAnswer":5},{"id":156481,"question":"Alternating current can be transmitted:","choices":[{"text":"To long distance","value":"A"},{"text":"At very high cost","value":"B"},{"text":"At very low cost","value":"C"},{"text":"Both (A) and (C)","value":"D"},{"text":"Both (A) and (B)","value":"E"}],"correctAnswer":4},{"id":120088,"question":"A P-N juction or semiconductor diode cannot be used as","choices":[{"text":"A rectifier","value":"A"},{"text":"Detector","value":"B"},{"text":"Oscillator","value":"C"},{"text":"An amplifier","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":119813,"question":"In describing functions of digital systems, a closed switch will be shown as","choices":[{"text":"0","value":"A"},{"text":"1","value":"B"},{"text":"low","value":"C"},{"text":"any one of these","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":119812,"question":"Mathematical manipulation of the two quantized states can be best carried if they are represented by","choices":[{"text":"high - low","value":"A"},{"text":"yes - no","value":"B"},{"text":"on - off","value":"C"},{"text":"0 - 1","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":119811,"question":"A digital system deals with quantities or variables which have","choices":[{"text":"only one state","value":"A"},{"text":"only two discrete states","value":"B"},{"text":"three discrete states","value":"C"},{"text":"four discrete states","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":119810,"question":"Most OP-AMP operates with","choices":[{"text":"<u>+</u> 6 V supply","value":"A"},{"text":"<u>+</u> 10 V supply","value":"B"},{"text":"<u>+</u> 12 V supply","value":"C"},{"text":"<u>+</u> 24 V supply","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":119808,"question":"The R<sub>1</sub>= infinity and R<sub>2</sub>= 0, then the gain of non-inverting amplifier is","choices":[{"text":"zero","value":"A"},{"text":"infinity","value":"B"},{"text":"one","value":"C"},{"text":"any one of these","value":"D"},{"value":"E"}],"correctAnswer":3}]