150. What channel would you use to place a call to a shore telephone?
A: Ch 16.
B: Ch 70.
C: Ch28
D: Ch 06.
A: Ch 16.
B: Ch 70.
C: Ch28
D: Ch 06.
举一反三
- 智慧职教: Ch 75 and Ch 76 are used as_ for distress channel 16.
- ________被指定为VHF无线电话国际遇险与安全通信频道，俗称公共频道。 A: CH 16 B: CH 06 C: CH 10 D: CH 72
- 152. The "scan" function of VHF receiver is used to . A: monitor Ch 16 continuously and switching to either Ch 70 0r Ch 13 every 5 seconds B: scan Ch 16 for distress calls C: scan Ch 70 for distress alerts D: sequentially scan all or selected channels
- 在紫外可见光区有吸收的化合物（） A: CH—CH—CH B: CH—CHOH C: CH=CH—CH—CH=CH D: CH—CH=CH=CH—CH
- Which are the preferred frequencies in radiotelephony for on scene cornrnunications? A: 121.5MHz and 2045kHz B: Ch 70 (156.525MHz) and 21 74.5kHz C: Ch 11 (156.650MHz) and 202lkHz D: Ch 16 (156.800MHz) and 2182kHz