| In TV system, the color level control is in the ______? |
| The max. radiation for electronic equipment must not exceed ___ mr/week |
| What refers to any sonic, infrasonic, or ultrasonic wave which is emitted from electronic product as a result of the operation of its electronic circuit |
| What is the formula for REM? |
| Radiation exposure rates produced by a TV receiver shall not exceed ____ milli roentgens per hour at the distance of 5cm from any point on external surface of the receiver? |
| Why are larger antennas receive stronger signals than smaller antenna? |
| What is the advantage of Dougherty linear? |
| What vacuum tube is used for microwave amplification and oscillation? |
| What is the advantage of using variable and balance T-type attenuator pass as gain control? |
| What refers to the sampling of analog signal used in a sample and hold circuit such that the sample will have the same amplitude for its whole duration |
| Which of the ff. identifies the maximum transmitted power level of a mobile phone? |
| Which of the ff. is not a supervisory tone? |
| If the distance between the sound source and the listener is changing, the freq. heard will defer from the freq. emitted, this phenomenon is called? |
| One document required for application of MPDP is a list of stock of spare parts and accessories sufficient enough to cover the warranty of mobile phone units for at least how many months? |
| How much is the inspection fee for application of MPDP or MPCP? |
| Which NTC memorandum circular provides for the additional rules and regulations on the purchase, sale, lease and retail of mobile phones? |
| What protocol is used in the check sum method of error detection? |
| In cellular system, typically how many cells in the freq. reuse plan format? |
ANSWERS:
| BPA |
| 100 |
| Radiation |
| Rbe x rad |
| 0.5 |
| Because they have greater effective area or greater proportion of radiated energy intercepted |
| High efficiency |
| Klystron |
| Maintain small constant z |
| Flat top sampling |
| Station class mark |
| 4000Hz |
| Doppler effect |
| 6 months |
| Php720/year |
| MC 08-08-2004 |
| X modem |
| 7 |
Electronics engineering is so rough man, I have taken many subjects related to electronics and found them rough. How people able to get Engr. Degree in Electronics.
ReplyDelete