Domain 1 - Advanced Sciences and Math Flashcards
What are the variables and units for the equation below?
P= Pressure (PSIA)
V= Volume
T= Temperature (K or R)
How do you convert fahrenheit to celsius?
How do you convert celsius to kelvin?
How do you convert celsius to rankine?
R°=1.8C°+491.67
What are the Variables and Units associated with Ohm’s Law?
V = IR or E = IR
V or E = voltage (Electromotive Force), voltage
I = Current, amps
R = Resistance, ohms
How do you convert PSI to PSIA?
PSIA = PSI + 14.7
PSI or PSIG, 14.7psi is one atmosphere.
What are the variables and units associated with the relation ship below?
P = VI or P = EI
V or E = voltage (Electromotive Force), voltage
I = Current, amps
P = Power, watts
What type of circut is this, and how does resistance work within it?
Parallel
Resistances connected in parallel reduce the overall circut resistance.
1/RT = 1/R1 + 1/R2 + 1/R3……
What type of circut is this, and how does resistance work within it?
Series
Resistances connected in series increase the overall circut resistance.
RT = R1 + R2 + R3……
What are the variables associated with this formula?
Z = Z-Score
X = Data Point
μ = mean
σ = Standard Deviation
What is a Z-score?
A standardized score that measures how far an individual point is away from the mean in a standard distribution.
A larger base number indicates farther distance from the mean. A negative value represents lower than the mean.
What chemicals are corrosive?
Acids, Bases, Both?
Both Acids and Bases are corrosive.
Which chemical is stronger, and by how much?
X : (4 PH) Y: (5 PH)
Chemical X is 10 times stronger.
PH scale is logarithmic
An acid has more:
H+ or OH-
H+
A base has more
H+ or OH-
OH-
Alkali or Caustic are both terms that can describe:
Acids or Bases?
Bases
Specific Gravity (SG)
Ratio of the density of a substance to the denisty of water.
Density of object / Denisty of water
Substance X has a SG of 4, will it float or sink in water?
Sink
SGs greater than 1 means the substance will sink
Substance X has a SG of 0.5, will it float or sink in water?
Float
SGs greater than 1 means the substance will float
What is this formula, and what does it mean?
Inverse square law.
As distance from source doubles, intensity is 1/4th
What is…
General Adaptation Syndrome
Describes the 3 phases the body goes through when under stress.
1) Alarm reaction Stage
2) Resistance stage
3) Exhaustion stage
How do you calculate
Free Fall Distance
D-ring ABOVE anchor
Lanyard Length + Distance from D-Ring to Anchor
How do you calculate
Free Fall Distance
D-ring ABOVE anchor
Lanyard Length + Distance from D-Ring to Anchor
How do you calculate
Free Fall Distance
D-ring ABOVE anchor
Lanyard Length + Distance from D ring to anchor
How do you calculate
Free Fall Distance
D-ring ABOVE anchor
Lanyard Length + Distance from D ring to anchor
How do you calculate
Free Fall Distance
D-ring ABOVE anchor
Lanyard Length + Distance from D-Ring
With the anchor below, the worker will fall the entire lanyard length.
How do you calculate
Free Fall Distance
D-ring BELOW anchor
Lanyard Length - Distance from D-Ring
With anchor above, worker won’t fall the entire lanyard length.
How do you calculate
Free Fall Distance
D-ring Level anchor
Lanyard Length
How do you calculate
Clearance Distance
Free Fall Distance + Decel Distance + Harness slop + Back D-Ring Height + Safety Factor
When is this formula used, what are the variables?
WBGT = 0.7WB + 0.3GT
Negligble Solar Radiation
WBGT = Wet Blub Globe Temperature
WB = Wet Bulb
GT = Globe Temperature
When is this formula used, what are the variables?
WBGT = 0.7WB + 0.2GT + 0.1DB
Consider Solar Radiation
WBGT = Wet Blub Globe Temperature
WB = Wet Bulb
GT = Globe Temperature
DB = Dry Bulb
