ET1 SWE Questions

Sending a message on several frequencies at once is an example of which of the following transmission types?

Frequency Diversity

What type of diversity uses physically separated transmit and receive antennas to improve communications?

Space

Communications links have many modes of operation. One terminal in a link has its equipment setup in simplex. The other terminal is using two channels or frequencies in a configuration that allows sending and receiving of different messages at the time. These two terminals working together make up what mode of operation?

Semiduplex

A transmitted electromagnetic wave enters an antenna, induces a voltage into it, and passes that voltage to a receiver. What is this chain of events called?

Reception

When a receiver picks one frequency out from all other frequencies, it�s performing which of the following basic functions?

Selection

When a receiver separates the audio frequencies from the radio-frequency carrier it is performing which of the following basic functions?

Detection

The receiver action of converting electrical energy to a usable format, such as sound, is an example of which of the following basic functions?

Reproduction

Which of the following measurements provides an indication of the ability of a receiver to reproduce weak signals?

Sensitivity

Overall sensitivity of a receiver is limited by which of the following factors?

Noise

How is a receiver�s ability to reject unwanted signals and receive desired signals determined?

Selectivity

The IF in a receiver is produced by which of the following methods?

Heterodying

The process of heterodyning takes place in which of the following receiver circuits?

Mixer

The process of simultaneous transmission of several intelligible signals on the same frequency during the same period of time is called?

Multiplexing

Which of the following categories of electromagnetic interference includes interference generated by electrically charged raindrops?

Natural

Which of the following methods of reducing rf burn hazards is the most useful and widespread technique used?

Bond and ground all metallic objects

The greatest hazard from thermal effects appears to come from equipment operated in which of the following frequency ranges?

1 to 3 gigahertz

You have been working on a piece of equipment and your eyes have been exposed to high-intensity microwaves. Which of the following types of eye problems may occur?

Cataracts

In a line of sight communications system, propagation is affected by which of the following layers of the atmosphere?

Troposhere

Who was awarded both the medal of honor and gold life saving medal?

Marcus Hanna, he served at Cape Elizabeth Light

What is the reference for CSMP�s?

NAVENG 9000.6D

In what war did the Eagle re-capture 2 American vessels?

The Quasi-war, the vessels were the Nacny and Mehitable

What is not a factor on control/multiconductor cable?

Impedance

How often is portable test equipment checked?

Quarterly

Category B Navy FBR�s should be mailed to?

FTSC

Tie wraps on a cable bundle are how far apart?

2.5 times the diameter no more than 10 inches apart

What reference is used for inspecting a workbench?

NEC

What should the resistance be between the metal case and ground on a power tool?

1 ohm

A workbench breaker is rated at how many amps?

20 amps

What are shorting probes rated for?

25,000 volts

How are cables run on a cutter for battle damage reasons?

Inside frames and along cable trays

How often are direction finders calibrated?

Every 12 months

What determines the weekly PMS schedule?

The quarterly

What are the different cable classifications?

Passive, Active, and Susceptible

A direction finder must be re-calibrated if it is off by how many degrees?

3

How long can someone work inside the PEL while a miniloop antenna is energized?

6 minutes

Multiconductor cable is bad when measured less than how many ohms between conductors?

50,000 ohms

Guy wire turnbuckle should have a what through it?

A safety wire

When megging an antenna what is a good reading?

200 mega ohms

Easiest way to get a better ground?

Drive rod deeper

High voltage signs need to be posted when voltages are over?

500 volts

What spacing is required between active, passive and susceptible cables?

18 inches between active and passive and 2 inches between susceptible and passive

How close can you be to electronics with jewelry on?

4 feet

How often is the lightning protection subsystem to be inspected?

Annually

Navy preventative maintenance card that tells you specifically how to do something?

Maintenance Requirement card

What type of field change furnishes documentation only?

Type 2

A general court martial consist of?

A judge and at least 5 members

What is the advice code for an XB turn in items?

5A

Who received the Navy Cross at the battle of Guadalcanal?

Raymond J. Evans

Where do allowance change requests go to?

MLC

Who was the first MCPOCG?

Charles Calhoun

How long does it take a radar pulse to travel one mile (back and fourth)?

12.36 micro seconds

In what year where paygrades E-8 and E-9 created?

1958

How do you address and O-8 in the Army, Air Force, or Marines?

Major General

How long are CSMP�s kept?

3 years

Ida Lewis was the caretaker of what lighthouse?

Lime Rock in Rhode Island for 39 years

What form number is allowance change request?

CG 5323

A single building with multiple power sources is grounded how?

All grounded conductors shall be grounded at the first service disconnect means of each source

What antennas are operated with one end grounded?

Marconi

Who maintains CSMP�s on cutters?

EO/EPO

To make changes to a CASREP what do you do?

Send a CASUPDATE

What type of field change furnishes documentation, parts, and special tools required to complete a change?

Type 1

The first chiefs were?

Former life saving station keepers

What type of field change implements changes to technical documentation only and requires no alteration to the equipment?

Type 4

Who should do test equipment audits?

MLC

Fire control tracking radar usually produces what type of beam?

Narrow and Circular

What type of servo has a feedback loop?

Closed loop

Seams in floor matting will be sealed at a minimum with?

4� wide 3M electrical insulating tape

What form is used to order publications?

CG 4428

How many directorates are there?

11

How many units work directly for headquarters?

33/35

Where is the CG ensign flown at shore facilities?

On the starboard yardarm

What command can display all Battle Streamers?

Headquarters

What service doesn�t have CWO?

Air Force