Display Devices and Systems » Exercise – 1
5. LED means :
(a) Liquid emitting display
(b) Liquid energy display
(c) Light emitting diode
(d) Liquid emitting detector
Subject Name : Electronics Engineering |
Exam Name : IIT GATE, UPSC ESE, RRB, SSC, DMRC, NMRC, BSNL, DRDO, ISRO, BARC, NIELIT |
Posts Name : Assistant Engineer, Management Trainee, Junior Engineer, Technical Assistant |
Electronics & Communication Engineering Books |
GATE 2023 Total Info | ENGG DIPLOMA | UGC NET Total Info |
IES 2023 Total Info | PSUs 2022 Total Info | CSIR UGC NET Total Info |
JAM 2023 Total Info | M TECH 2023 Total Info | RAILWAY 2022 Total Info |
Related Posts
Display Devices and Systems » Exercise - 1 1. LCD means : (a) Liquid chrome data (b) Liquid crystal display (c) Liquid crystal data (d) None of these 2. CRT means : (a) Common ray tube (b) Cathode ray tube (c) Controlled ray tube (d) None of these 3. Plasma device converts : (a) Electrical energy into light energy (b) Electrical energy into graphical energy (c) Light energy into electrical energy (d) Lightenergy into graphical energy 4. In liquid crystal displays, the liquid crystal exhibits properties of : (a) Liquid (b) Solids (c) Gases (d) Both (a) and (b) 5. LED means : (a) Liquid emitting display (b) Liquid energy display (c) Light emitting diode (d) Liquidemitting detector
Special Diodes » Exercise - 1 1. A Zener diode : (a) Is a battery under forward biased condition (b) Acts like battery when it breakdowns (c) Is a switch (d) Is a device having barrier potential more than 5V 2. At 25ºC, a Zener diode rates at 2 watts, its power rating at 50ºC will be : (a) Zero watts (b) Less than 1 watt (c) Greater than 2 watts (d) Less than 2 watts 3. Silicon is appreciably employed as a base material compared to germanium while manufacturing Zener diode since : (a) silicon is abundantly available (b) it is costlier (c) it has low current capability (d) it has high temperature capability 4. The capacitance of a varactor diode increases, when the reverse voltage across it is : (a) Decreased (b) Increased (c) Kept constant (d) None of the above 5. The main advantage of a point contact diode is that : (a) The ratio of forward current to reverse current is very high (b) Low input impedance (c) Its cut-in voltage is equal to zero (d) Its reverse resistance is infinite 6. Which one of the following is a Square law device ? (a) Zener diode (b) Crystal diode (c) Tunnel diode (d) Varactor diode 7. Match the given lists. List I…