6A1 SITOR-ARQ is a common mode of data communications in the maritime service. It is a system based on transmission bursts and acknowledgements. What is the baud, and interval between the burst transmissions:

6A2 Weather information is commonly sent by radio in map form by one-way facsimile transmission. Two common parameters which must be set by the receiving station are:

6A1 - SITOR-ARQ is a common mode of data communications in the maritime service. It is a system based on transmission bursts and acknowledgements. What is the baud, and interval between the burst transmissions:

6A2 - Weather information is commonly sent by radio in map form by one-way facsimile transmission. Two common parameters which must be set by the receiving station are:

6A3 - 2182 kHz is the international radiotelephone distress frequency. It is also used for a calling channel. The authorized mode of emission is H3E (single-sideband full carrier). A3E (double-sideband full carrier) is only authorized for equipment:

6A4 - Ship's power is generated as 3-phase and is ungrounded. On a delta-wound transformer with 120 VAC line-to-line secondary, what is the voltmeter reading from line to ground:

6A5 - When passing through areas of static charge, high voltages can accumulate on antennas which are insulated from ground. What protects a connected receiver from damage?

6A6 - Vertical shipboard antennas for use in the MF band (410-525 kHz) are often fitted with top-hat loading sections. What is the purpose of these structures?

6A7 - Modern reserve transmitters are solid-state designs and transmit using only A2 modulation. When measuring transmitter center frequency, what precaution must be taken:

6A8 - Voltage may be expressed by what other expression?

6A9 - Amperage may also be known by:

6A10 - Factors which determine the amplitude of the voltage induced in a conductor which is cutting magnetic lines of force:

6A11 - An electrical potential may be generated by:

6A12 - Ohm's law is stated as:

6A13 - The unit of electrical power is:

6A14 - The unit of conductance is:

6A15 - The unit of inductance is:

6A16 - The ratio of current through a conductor to the voltage which produces it is:

6A17 - The product of the number of turns and the current in amperes used to describe relative magnitude is:

6A18 - The property of a conductor or coil which causes a voltage to be developed across its terminals when the number of magnetic lines of force in the circuit or coil is changed is:

6A19 - The charge of electricity which passes a given point in one second when a current of one ampere is flowing is:

6A20 - C = capacity in farads. Q = the measure of the quantity of charge of electricity in Coulombs. E = the applied voltage. So Q = CE:

6A21 - Resistance is:

6A22 - The unit of AC impedance in a circuit is:

6A23 - The unit of capacitance is:

6A24 - Decibel is:

6A25 - What factors determine the charge stored in a capacitor?

6A26 - Ohm's law for AC circuits when I = amperes, E = volts, Z = impedance in volts is:

6A27 - The formula for determining the power in a DC circuit when the voltage and resistance are known is:

6A28 - The formula for finding power in a DC circuit when current and resistance are known:

6A29 - The formula for finding power in a DC circuit when current and voltage are known:

6A30 - The prefix " kilo " means:

6A31 - The prefix " micro " means:

6A32 - The factor by which the product of volts and amperes must be multiplied to obtain true power is:

6A33 - The prefix " meg " means:

6A34 - Factors which influence the resistance of a conductor:

6A35 - Halving the cross-sectional area of a conductor will:

6A36 - Name four conducting materials in order of their conductivity.

6A37 - Good insulators at radio frequencies are:

6A38 - A resistance across which a constant voltage is applied is doubled. What power dissipation will result?

6A39 - The needle of a magnetic compass when placed within a coil carrying an electric current:

6A40 - Electrical resistance is measured with:

6A41 - The sum of all voltage drops around a simple DC circuit, including the source, is:

6A42 - If a resistance to which a constant voltage is applied is halved, what power dissipation will result?

6A43 - The diameter of a conductor six inches long is doubled, what will be the effect on the resistance?

6A44 - A minute subdivision of matter having the smallest known unit of negative electrical charge is:

6A45 - Conductors differ from nonconductors, i.e.:

6A46 - Direction of flow of DC electricity in a conductor can be determined by:

6A47 - The difference between electrical power and electrical energy is:

6A48 - A positive temperature coefficient means: