@⇒ Science and technology ⇒ General Knowledge Multiple Choice Questions / Objective type questions, MCQ's, with question and answers, download free PDF, short cut notes, rapid fire notes, best theory

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Q1.	In which year was MIDI(Musical Instrument Digital Interface) introduced?
A.	1987 [Wrong Answer]
B.	1983 [Correct Answer]
C.	1973 [Wrong Answer]
D.	1977 [Wrong Answer]
View Answer 4 -1 Explanation:- Answer : B Discuss it below : Click here for more comments


Q2.	Name the terminals of a BJT.
A.	Drain, Gate, Source [Wrong Answer]
B.	Positive, Negative, Neutral [Wrong Answer]
C.	Anode, Cathode, Triode [Wrong Answer]
D.	Emitter, Base, Collector [Correct Answer]
View Answer 4 -1 Explanation:- Answer : D Discuss it below : Click here for more comments


Q3.	What was the active medium used in the first working laser ever constructed?
A.	A diamond block [Wrong Answer]
B.	Helium-neon gas [Wrong Answer]
C.	A ruby rod [Correct Answer]
D.	Carbon dioxide gas [Wrong Answer]
View Answer 3 -2 Explanation:- Answer : C Discuss it below : Arun Mozhi Said on 2020-11-07 21:23:54 Laser resonator geometries Click here for more comments


Q4.	In which decade was the transistor invented?
A.	1940s [Correct Answer]
B.	1950s [Wrong Answer]
C.	1960s [Wrong Answer]
D.	1980s [Wrong Answer]
View Answer 2 -1 Explanation:- Answer : A Discuss it below : Click here for more comments


Q5.	What is the Websites code for the country Bulgaria?
A.	BU [Wrong Answer]
B.	BR [Wrong Answer]
C.	BL [Wrong Answer]
D.	BG [Correct Answer]
View Answer 4 -3 Explanation:- Answer : D Discuss it below : Click here for more comments

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