Engineering Physics Quiz

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Questions and Answers

How many grams of CO2 would be produced if 10 moles of oxygen were consumed in the oxidation process?

880 grams

440 grams (correct)

660 grams

220 grams

What is the new pressure in a 5L compressed-gas cylinder heated from 65°F to 110°F with an initial pressure of 3000 psig?

6000 psig

4000 psig

3000 psig

5000 psig (correct)

If the voltage in a DC circuit is 120 volts and the resistance is 9 ohms, what is the current?

5.0 amps

10.0 amps

13.33 amps (correct)

15.0 amps

What would be the remaining radioactivity from 1 Ci of Co-60 after 20 years, considering its half-life is 5.24 years?

0.125 Ci Signup and view all the answers

What is the half-life for 226Ra given its decay constant is 1.36 × 10^-11 Bq per second?

25.66 days Signup and view all the answers

What is the maximum duration in hours for which a lift frequency of 10 lifts per minute is appropriate?

8 hours Signup and view all the answers

Which of the following represents the relationship between Load Weight and Recommended Weight Limit as given by the Lifting Index (LI)?

LI = Load Weight / Recommended Weight Limit Signup and view all the answers

What is the primary function that should be included in a calculator according to the authors?

Statistical function for mean, standard deviation, and correlation Signup and view all the answers

Which feature is emphasized for practical usability in the calculator design?

User-friendly layout with larger keys Signup and view all the answers

For a coupling type rated as 'Fair', what multiplier should be used for vertical lifts greater than or equal to 30 inches?

1.00 Signup and view all the answers

Which angular displacement is within the acceptable range for A?

135º Signup and view all the answers

During calculations, what is a key aspect to consider for the design of calculators?

Size of keys to avoid accidental presses Signup and view all the answers

What is the result of calculating $69.95 - 10%$ discount?

$62.96 Signup and view all the answers

What value for D is appropriate if vertical lift distance is measured at 8 inches?

10 inches Signup and view all the answers

Which of the following describes the required features of an approved calculator for BCSP examinations?

Should have a good instruction manual Signup and view all the answers

Calculate the value of $\sin(30)$. What is the correct answer?

0.5 Signup and view all the answers

For a frequency of 3 lifts per minute lasting up to 2 hours, what is the correct frequency multiplier?

0.88 Signup and view all the answers

What is the output of calculating $90 + 16.61 \times \log_{10} 2$?

95.5 Signup and view all the answers

What is the frequency multiplier for a lift frequency of 5 lifts per minute lasting up to 8 hours?

0.35 Signup and view all the answers

In calculating RWL(lb), which adjustment factor decreases as vertical distance V increases?

VM Signup and view all the answers

What is the simplified result of the expression $(4 \times 5) / (5 \times 4)$?

1 Signup and view all the answers

For lifts with an angular displacement A of 90º, what is the likely impact on RWL?

RWL will decrease Signup and view all the answers

What does the calculation of $1 / e^{-2.5}$ yield?

0.92 Signup and view all the answers

In the context of hazardous materials, which is the safest action indicated for a concentration of 2.3% against PEL and IDLH?

Respiratory protection should be selected Signup and view all the answers

What is the primary factor affecting the reliability R(t) in the formula R(t) = e⁻λᵗ?

Failure rate Signup and view all the answers

In the NIOSH lifting equation, what does the variable A represent?

Angle of asymmetry Signup and view all the answers

Which formula is used to calculate the sample standard deviation?

S = √ (Σx² / (n-1)) Signup and view all the answers

What does the variable P in the combination formula represent?

Number of combinations possible Signup and view all the answers

To calculate the z-score, which of the following components is NOT needed?

Sample size n Signup and view all the answers

What is the significance of the coefficient of correlation r?

It indicates the quality of a linear relationship between two variables. Signup and view all the answers

In the hydrostatics formula P = (Q²/891d⁴), what does 'd' represent?

Internal diameter Signup and view all the answers

Which of the following is the correct conversion for pressure measurement?

1 atmosphere = 14.7 psi Signup and view all the answers

Which formula corresponds to calculating the pressure drop in hydraulic systems?

P = (4.52 Q¹.⁸⁵) / (C¹.⁸⁵ 4.87) Signup and view all the answers

What is the formula used to calculate the Time Weighted Average (TWA) of a chemical exposure?

TWA = (C₁ × T₁ + C₂ × T₂ + ...+ C × T) / (T₁ + T₂ + ...+ T) Signup and view all the answers

Which equation correctly describes the relationship between Pressure (P), Volume (V), and Temperature (T) in the Combined Gas Law?

PIV₁ = P₂V₂/T² Signup and view all the answers

What does LFL represent in the context of chemical safety?

Lower Flammable Limit Signup and view all the answers

To calculate TLV for a mixture of chemicals, which of the following expressions is correct?

TLV = 1 / (f₁/TLV₁ + f₂/TLV₂) Signup and view all the answers

Which of the following correctly defines the molecular weights (MW) relationship in the formula for calculating ppm?

ppm = mg/m³ × 24.45 / MW Signup and view all the answers

In the context of electrical formulas, which equation describes Ohm's law?

V = I × R Signup and view all the answers

What is the correct expression to calculate the resistance in a parallel circuit?

1/R = 1/R1 + 1/R2 + ... + 1/RN Signup and view all the answers

Study Notes

ASP Math Equations and Formulas

Concentrations of Vapors and Gases Formulas:
- ppm = mg/m³ x 24.45 / MW
- ppm = parts per million in concentration
- mg/m³ = milligrams/cubic meter
- MW = Molecular Weight of the substance
TWA (Time Weighted Average):
- TWA = [(C₁ × T₁) + (C₂ × T₂) + ... + (C x T)] / (T₁ + T₂ + ... + T)
- C = Concentration of chemical
- T = Time of exposure
LFL (Lower Flammable Limit):
- LFLm = LFL₁ + LFL₂ + ... + LFLm
- f = fraction by weight
TLV (Threshold Limit Value):
- TLVmix = TLV₁ + TLV₂ +... + TLVn
- f=fraction by weight (% expressed as 0.XX)

Electrical Formulas

V = IR or E = IR
- E or V = Voltage
- I = Current (Amperage)
- R = Resistance (Ohms)
RSERIES = R₁ + R₂ + ... + RN
- R = Resistance (Ohms)
P= VI or P = EI
- P = Power (Watts)
- I = Current (Amperage)
- E or V = Voltage
RPARALLEL = 1/R₁ + 1/R₂ + ... + 1/RN
- R = Resistance (Ohms)

Radiation Formulas

N = No e-kt
- N = radioactivity remaining after time t
- No = radioactivity at a given original time
- t = elapsed time
- k = disintegration constant
- e = second function natural log
A= Aoe-kt/2
- A = radioactivity remaining after time t
- Ao = radioactivity at a given original time
- t = elapsed time
- k = disintegration constant
T1/2 = ln2/k or 0.693(natural log of 2)/k
- T1/2 = half life of radionuclide
- k = constant of disintegration

Structural and Mechanical Calculations

Area and Volume Formulas:
- Circumference of a circle = 2πr or πd
- Area of a circle = πr² or πd²/4
- Area of a rectangle = length × width
- Area of a triangle = 1/2 × base × height
- Volume of a tank = πr²h or πd²/4 h
- Volume of a cube = length × width × height
Trigonometric Functions:
- sin A = a / c
- cos A = b / c
- tan A = a / b
Engineering Control Calculations: Q = AV Q = the Volumetric Flow Rate in the duct A = the Cross-Sectional Area of the duct under consideration V = the Velocity, or Duct Velocity, of the gases moving in the duct

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Description

Test your knowledge on various concepts in engineering physics with this quiz. Questions cover topics such as gas laws, electrical circuits, radioactive decay, and lifting indices. Perfect for students looking to enhance their understanding of applied physics principles.