MCQ in Broadcasting and Cable TV System Part 4 – Answers

(Last Updated On: April 6, 2020)

MCQ in Broadcasting and Cable TV System Part 4 | ECE Board Exam

Below are the answers key for the Multiple Choice Questions in Broadcasting and Cable TV System Part 4.

151. Complete cycle includes trace and retrace

152. 10

153. Exact interlacing

154. 1885

155. Vertical scanning frequency is doubled from the 30-Hz frame rate to the 60-Hz field rate

156. 6.4 us

157. The keystone effect produces a square raster

158. 6 half lines or 3 lines

159. Timing

160. 31, 500 Hz for the vertical scanning frequency

161. Symmetrical envelope of amplitude variations

162. Negative transmission means the carrier amplitude decreases for white

163. 67.25 MHz carrier and 69.25 MHz upper side frequency

164. Both upper and lower side frequencies are transmitted

165. 4.5 MHz

166. 6 MHz

167. 68

168. VHF and UHF bands

169. 474.83 MHz

170. 0.92 MHz

171. Y

172. Cyan

173. Saturation

174. 4.5- MHz intercarrier sound

175. Yellow-green

176. I

177. A full saturated color is mostly white

178. Yellow

179. Cyan

180. The brightness of the color

181. 3.58 MHz

182. No color

183. Video preamplifier

184. Blue video

185. 90°

186. Color killer on

187. Chroma bandpass amplifier

188. Y video output

189. No color

190. Yellow-green

191. Drive controls

192. Trapezoid

193. Does not isolate the secondary from dc voltage in the primary

194. Cathode

195. Reduce height with the vertical linearity control

196. 0.7 A

197. Can use PNP and NPN transistor

198. Horizontal AFC

199. 15750 Hz

200. Right edge of the raster

Questions and Answers in Broadcasting and Cable TV System Series

Following is the list of multiple choice questions in this brand new series:

MCQ in Broadcasting and Cable TV System
PART 1: MCQ from Number 1 – 50                        Answer key: PART 1
PART 2: MCQ from Number 51 – 100                   Answer key: PART 2
PART 3: MCQ from Number 101 – 150                 Answer key: PART 3
PART 4: MCQ from Number 151 – 200                 Answer key: PART 4
PART 5: MCQ from Number 201 – 250                 Answer key: PART 5
PART 6: MCQ from Number 251 – 300                 Answer key: PART 6
PART 7: MCQ from Number 301 – 350                 Answer key: PART 7
PART 8: MCQ from Number 351 – 400                 Answer key: PART 8
PART 9: MCQ from Number 401 – 450                 Answer key: PART 9
PART 10: MCQ from Number 451 – 500                 Answer key: PART 10

Complete List of MCQ in Communications Engineering per topic

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