[{"id":170575,"question":"The instrument which is used to display the magnitude of\r\nchanging electric current is called:
","choices":[{"text":"Evacuated tube
","value":"A"},{"text":"Cathode rays oscilloscope
","value":"B"},{"text":"Television tube
","value":"C"},{"text":"Picture tube
","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":170574,"question":"In C.R.O grid is always connected with potential:
","choices":[{"text":"Negative
","value":"A"},{"text":"Positive
","value":"B"},{"text":"High positive
","value":"C"},{"text":"Zero positive
","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":170573,"question":"Eight bits combine to form:
","choices":[{"text":"A byte
","value":"A"},{"text":"Megabyte
","value":"B"},{"text":"Kilobyte
","value":"C"},{"text":"Gigabyte
","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":170572,"question":"The standard group of bits in digital electronic is:
","choices":[{"text":"5 bits
","value":"A"},{"text":"6 bits
","value":"B"},{"text":"7 bits
","value":"C"},{"text":"8 bits
","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":170571,"question":"George Boole invented:
","choices":[{"text":"Boolean algebra
","value":"A"},{"text":"Arithmetic algebra
","value":"B"},{"text":"Mean algebra
","value":"C"},{"text":"Geometry
","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":170570,"question":"The cathode ray oscilloscope consists of main parts:
","choices":[{"text":"Two
","value":"A"},{"text":"Three
","value":"B"},{"text":"Four
","value":"C"},{"text":"Five
","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":170569,"question":"In NOT gate number of input terminals is/are:
","choices":[{"text":"1","value":"A"},{"text":"2","value":"B"},{"text":"3","value":"C"},{"text":"4","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":170568,"question":"When we heat the metal at high temperature they emit:
","choices":[{"text":"Holes
","value":"A"},{"text":"Protons
","value":"B"},{"text":"Neutrons
","value":"C"},{"text":"Electrons
","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":170567,"question":"The output of a NAND gate is 0 when:
","choices":[{"text":"Both of its inputs are 0
","value":"A"},{"text":"Both of its inputs are 1
","value":"B"},{"text":"Any of its inputs is 0
","value":"C"},{"text":"Any of its inputs is 1
","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":170566,"question":"The output of a two input NOR gate is 1 when:
","choices":[{"text":"A is 1 and B is 0
","value":"A"},{"text":"A is 0 and B is 1
","value":"B"},{"text":"Both a and b are 0
","value":"C"},{"text":"Both a and b are 1
","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":170382,"question":"In SI the unit of\r\ncharge is:
","choices":[{"text":"Joule
","value":"A"},{"text":"Volt
","value":"B"},{"text":"Coulomb
","value":"C"},{"text":"Watt
","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":170380,"question":"One micro coulomb charge is equal to:
","choices":[{"text":"10-3c
","value":"A"},{"text":"103c
","value":"B"},{"text":"106c
","value":"C"},{"text":"10-6c
","value":"D"},{"value":"E"}],"correctAnswer":4}]