Concert Technology

Question 1

A pre amp is

Answer 1

A device used to provide amplification to the microphone so that the mixing board can manipulate the signal efficiently

Question 2

A transducer is

Answer 2

A device used to transfer acoustic energy to electric energy and vice versa

Question 3

A crossover is

Answer 3

A device used to split the signal by frequency

Question 4

A dynamic processor is

Answer 4

A device used to regulate volume on a ratio principle after the initial gain stage

Question 5

An equalizer is

Answer 5

A device used to adjust the volume of frequencies

Question 6

A microphone is

Answer 6

An Input transducer

Question 7

What type of input source are the most widely manufactured microphones, least expensive and most durable?

Answer 7

Dynamic

Question 8

What type of input source are the most expensive and least durable?

Answer 8

Condenser

Question 9

Hat type of input source uses electrostatic energy known as phantom power and are known for their accuracy and strength of high frequencies?

Answer 9

Condenser

Question 10

What type of input source are fastened to a vibrating plate on the instrument?

Answer 10

Piezo-electric

Question 11

What type of input sources takes a feed directly from an instrument into the pre amp?

Answer 11

Direct boxes (DI)

Question 12

What is a filter used for?

Answer 12

To limit frequencies above or below fixed points

Question 13

What is a compressor used for?

Answer 13

To control loud volumes

Question 14

What is a gate used for?

Answer 14

To control soft volumes

Question 15

What is a large vibrating element, known in slang as the woofer?

Answer 15

Direct radiator

Question 16

What has the best control for direction of the sound of higher frequencies?

Answer 16

Bullet horn

Question 17

What has the best control for direction of the sound of lower frequencies?

Answer 17

Horn folded into a W pattern

Question 18

What is the ability of a component to spread out the sound to a certain angle, important towards eliminating feedback

Answer 18

Dispersion

Question 19

Describe the process of ringing out a system

Answer 19

Set all graphic EQ sliders to fat
Bring up output gain until you hear feedback from a specific frequency
Find fader for specific frequency and bring it down until feedback is gone
Repeat for other frequencies

Question 20

An example of this type of electrical current would be provided the power company

Answer 20

AC

Question 21

An example of this type of electrical current would be from batteries

Answer 21

DC

Question 22

What is the measurement of electron flow from one point to another, which is the amount of electrical flow possible through a wire?

Answer 22

Amps

Question 23

What is the measurement expressing the amount of electrical energy consumed by a device?

Answer 23

Watts

Question 24

What is the measurement of electrical pressure typically in the us at 110 volts

Answer 24

Colts

Question 25

Describe three phase power and identify the wires used

Answer 25

It is an efficient way of distributing power, three alternating power sources the workload around a neutral wire. The red, blue, and black wire are the load wires. The grey wire is the neutral wire. The green wire is a safety feature and wired to the ground source

Question 26

What power distribution method is sent to multiple sources (lights) and if one fails the others are not affected

Answer 26

Parallel

Question 27

What power distribution method has one path if one fails every else with be affected

Answer 27

Series

Question 28

Four way PA system seems to be sounding weird. What can you check?

Answer 28

Check if wires are plugged in correctly, nothing’s damaged, check high, low, and band pass filter. Check if there is a electrical/circuit issue, check amp

Question 29

What restricts the amount of power to the individual light?

Answer 29

Dimmer

Question 30

What is a light referred to in its nonspecified form

Answer 30

Lamp

Question 31

What is the most common type of light used in a lighting system?

Answer 31

PAR can

Question 32

What is a change of lighting scheme at a specific time?

Answer 32

Cue

Question 33

What is a map showing all of the lighting instruments and electrical devices, their control assignment and locations?

Answer 33

Light plot

Question 34

What are the primary colors of light?

Answer 34

Red, blue, green

Question 35

3 Quad PA system

Answer 35

Mic, crossover, hpf 150 w amp,bpf 300 w amp ,lpf 500 w amp | Speakers

Question 36

Lighting system

Answer 36

Position and unit number, circuit number, dimmer number,channel control Light instrument, cable circuit, dimmer, light board