WK1

Question 1

What does TRACEM stand for?

Answer 1

T- thermal
R- radiological
A- asphyxiation
C- chemical
E- etiological
M-mechanical

Question 2

What are the 3 ways to protect from explosive blast

Answer 2

Time
Distance
Shielding

Question 3

3 ways of controlling heat stress

Answer 3

Limit time in PPE
Hydration
Cooling system

Question 4

How are blasting machines rated?

Answer 4

Blasting machines are rated on the number of caps they can detonate in series

Question 5

How is a galvanometer used during electric demolition operations.

Answer 5

To check continuity in both caps and firing wires

Question 6

What is the wait time for electrical misfire

Answer 6

30 min

Question 7

What is the main advantage of electric detonation procedures

Answer 7

Maintain positive control of detonation

Question 8

What level of protection is the bomb suit

Answer 8

Level D

Question 9

What four elements does a bomb does a bomb suit protect you from

Answer 9

Fragmentation
Over pressure
Impact
Heat

Question 10

What factor must you ensure when utilizing an APR

Answer 10

A minimum oxygen concentration of 19.5% is critical to sustain life

Question 11

What level of protection is an SRS five with a splash suit and SCBA

Answer 11

Modified level B

Question 12

When should a bomb tech wear a bomb suit?

Answer 12

On every approach made to the device until all explosive hazards are cleared

Question 13

What are two basic types of respirators used in the field that provide the different environments you will encounter?

Answer 13

APR air purifying respirator
SBA self-contained breathing apparatus

Question 14

What is the highest level of respiratory protection?

Answer 14

SCBA

Question 15

What is the minimum protection to be worn on a bomb incident?

Answer 15

Helmet and protective vest

Question 16

What is the definition of electricity?

Answer 16

The flow of electrons to simple materials and devices

Question 17

What is the definition of electricity?

Answer 17

The flow of electrons to simple materials and devices

Question 18

Electrons leave an atom from what shell

Answer 18

The valence shell, the outermost shell of electrons in an atom

Question 19

How does electricity flow from a battery?

Answer 19

From negative to positive

Question 20

What is the definition of current?

Answer 20

The flow of electrons through a conductor

Question 21

What is the unit of measurement for current?

Answer 21

Amps

Question 22

What is the definition of voltage?

Answer 22

The potential difference between two points in an electric circuit

Question 23

What is the definition of voltage?

Answer 23

The potential difference between two points in an electric circuit

Question 24

What is the definition of resistance?

Answer 24

The opposition of current flow

Question 25

What is the unit of measurement for resistance?

Answer 25

Ohms

Question 26

What is ohms law?

Answer 26

The current amps in a circuit is directly proportional to the applied voltage and inversely proportional to the circuit resistance V/ I x R

Question 27

What are the four requirements for a circuit?

Answer 27

Power source Conductor Switch Initiator / load

Question 28

What is a conductor?

Answer 28

Any material that allows electrons to move freely

Question 29

What is an insulator?

Answer 29

Any material that does not allow electrons to move freely within it

Question 30

What is the result of a short on a battery?

Answer 30

The premature exhaustion of the battery Heat Possible battery explosion

Question 31

What are the six methods of producing voltage?

Answer 31

Friction Pressure Heat Light Chemical reaction Magnetism

Question 32

A relay is an example of what kind of switch

Answer 32

Electromagnetic switch (collapsing)

Question 33

What causes a collapsing circuit function

Answer 33

Battery decay Cutting the wrong wire Anti-disturbance

Question 34

What causes movement in the contacts in a relay

Answer 34

Magnetism

Question 35

What is the only thing that moves through a circuit

Answer 35

Electrons

Question 36

What moves electrons through a circuit?

Answer 36

Voltage - electromotive force that moves electrons

Question 37

What are the four things that affect resistance?

Answer 37

Diameter Length Material Temperature

Question 38

What two atomic particles make up an atom

Answer 38

Proton and neutrons

Question 39

What happens to batteries and series?

Answer 39

Batteries and series will increase voltage supplied current or amperage will remain the same

Question 40

How do you add amperage with batteries in parallel?

Answer 40

Training purposes 500 mA hours is the standard you had 500 mA hours for every battery in parallel if you have three batteries you have 1500 mA

Question 41

What causes a collapsing circuit to function

Answer 41

Anti-disturbance Battery decay Cutting the wrong wire

Question 42

What causes movement of the contacts in a relay?

Answer 42

Energizing or de energizing of the coil the relay is an electromagnetic switch

Question 43

What is the definition of a mechanical fuse?

Answer 43

Any mechanical mechanism that is employed in a hazardous device and requires physical action or force to take place in order for the mechanism to function

Question 44

What is the definition of a mechanism?

Answer 44

The means by which an effect is produced or accomplished, or the mechanical aspect in other words typed by function

Question 45

What is an organic safety?

Answer 45

A designated safety block or pin that comes with a component to prevent initiation action. This is a built-in device and generally provided by the manufacturer.

Question 46

What is a positive safety?

Answer 46

A blocking material, pending or securing the component to positively prevent the final initiating action this action is generally done for of the firing pin and behind the primer

Question 47

What are the two switch categories?

Answer 47

Maintained contact - SCR Momentary contact - Transistor

Question 48

What is the definition of normally open or normally closed switches?

Answer 48

The normal state of rest for the switch with no influence

Question 49

What is the definition of the safe arm or safe operation switch

Answer 49

A switch which allows for a person to safely set the device and Armin without being there or disturbing the device during the final arming sequence

Question 50

What is the definition of the arming functioning switch?

Answer 50

It is a switch, which actually arms or activates the device so it is ready to function when triggered

Question 51

What must be done prior to cutting any tripwire?

Answer 51

You must press trace both ends of the wire, then find and block the triggering device

Question 52

Do you ever ever shoot a switch?

Answer 52

No shooting the switch may cause a device to function

Question 53

What is the definition of a mechanical switch

Answer 53

A device changing the course of flow in a circuit or cause a non-Lectric action to occur so as to function the device

Question 54

How does a barometric switch function?

Answer 54

By detecting changes, air pressure or altitude

Question 55

How does a biome switch function?

Answer 55

By detecting changes in ambient temperature

Question 56

What is the door knob switch?

Answer 56

A device attached to the door knob and activates in the door knob is turned

Question 57

What types of switches are used for anti-disturbance or anti-tampering

Answer 57

Mercury switches Tilt switches Vibratory switches ball or vapor switches

Question 58

What are the four types of time delay switches?

Answer 58

Mechanical delay Chemical delay Material fatigue Others like ice, wax beans, etc.

Question 59

What two functions can a time delay be utilized for?

Answer 59

The function of the device To activate the device

Question 60

What types of clocks are examples of mechanical delays?

Answer 60

Alarm activated Spring Tension Electric