Water Treatment Plant Exam Practice

Columbia Southern University Water Treatment Plant Exam Practice

QUESTION 1

1.Which standard requires each employer to determine if the walking/working surfaces on which its employees are to work have the strength and structural integrity to support the safety of all employees?

29 CFR 1926.500-503 Subpart M

 29 CFR 1910.500-503 Subpart N

 29 CFR 1926.500-503 Subpart J

 29 CFR 1926.500-503 Subpart K

QUESTION 2

1.After receiving a citation, an employer has how many days to submit a written objection (i.e., an appeal) to the Occupational Safety and Health Review Commission (OSHRC)?

 5 calendar days

15 working days

15 calendar days

 10 working days

QUESTION 3

1.According to 29 CFR 1910.146, a confined space must contain what concentration of oxygen by volume in order to permit entry?

18.9% – 21%

19.5% – 23.5%

19.0% – 23%

>16%

QUESTION 4

1.Multiple hospitalizations must be reported to OSHA within how many hours?

1 hour

 8 hours

24 hours

 4 hours

QUESTION 5

1.On what date is the OSHA 300-A form required to be posted in a conspicuous location?

 January 1st of each year

 February 1st of each year

December 31st of each year

 March 1st of each year

QUESTION 6

1.Which of the following is NOT an OSHA citation penalty category?

Other-than-serious violation

Repeated violation

 Willful violation

 Criminal violation

QUESTION 7

1.Which of the following is NOT considered a recordable injury, and as such, required to be posted on the OSHA 300 and 301 forms?

 Laceration of finger requiring three sutures

 Heat casualty with no loss of consciousness, but with two days off work

 Muscle strain with no loss of work

 Sprained ankle requiring limitation of job duties

QUESTION 8

1.If an employer receives an OSHA citation, he/she must post it in a conspicuous location for how long?

14 calendar days

 10 working days

 3 days or until the violation is abated, whichever is longer

 30 days

QUESTION 9

1.Given the following information for Company A, calculate the DART rate.

•3 DART cases

•257,842 hours worked

 2.33

 3.24

 1.98

 3.76

QUESTION 10

1.Given the following information for Company A, what is the calculated TCIR (Total Case Incident Rate)?

•5 recordable injuries

•58,472 hours worked

 7.93

 4.78

 11.39

 17.10

 

QUESTION 11

1.Given the following information for Company A, calculate the Severity Rate.

•27 lost work days

•242,387 hours worked

33.24

 22.28

 43.15

 38.44

QUESTION 12

1.Under the OSHA record keeping standard, an employer must enter each recordable injury or illness on OSHA Form __________ and OSHA Form __________, within __________calendar days.

300, 300A, and 10

300, 301, and 7

301, 301A, and 14

300, 301, and 10

QUESTION 13

1.The key elements of the Hazard Communication Standard (29 CFR 1910.1200) include:

written program, labeling and warnings, SDSs, and employee training.

 labeling and warnings, employee training, and SDSs.

 written program, labeling and warnings, certified operators, and SDSs.

 certified operators, labels, MSDSs, and weekly accountability verification audits.

QUESTION 14

1.Which of the following is NOT required in OSHA’s Respiratory Protection Standard (29 CFR 1910.134)?

 Written program

Training

 Fit testing

Issuing a dedicated respirator to each employee

QUESTION 15

1.OSHA’s Control of Hazardous Energy regulations can be found in:

 29 CFR 1910.58

 29 CFR 1926.1044

29 CFR 1910.147

 29 CFR 1926.147

QUESTION 16

1.OSHA’s Personal Protective Equipment (29 CFR 1910.132) Final Rule, effective February 13, 2008, requires an employer to purchase all of the following PPE with the EXCEPTION of what?

 Respirators

 Safety boots

 Safety glasses

 Disposable coveralls

QUESTION 17

1.According to the Bloodborne Pathogen Standard (29 CFR 1910.1030), employers must maintain medical records for what length of time?

10 years following termination of employee

 Duration of employment plus 30 years

 30 years from the beginning of employment

 5 years after any exposure to a blood borne pathogen

QUESTION 18

1.Privacy cases are work-related injuries that are sensitive in nature and the employee’s name is not to be included on the OSHA 300 form. Instead use the words “PRIVACY CASE.” Which of the following injuries is NOT considered a PRIVACY CASE?

An injury or illness to an intimate body part or the reproductive system.

 HIV, Hepatitis, or Tuberculosis infection.

Knee injury resulting in a joint replacement.

Any illness the employee voluntarily requests that his or her name not be entered on the log.

QUESTION 19

1.OSHA’s requirement in section 5(a)(1) of the Occupational Safety and Health Act of 1970 requires an employer to furnish “a place of employment which is free from recognized hazards that are causing or are likely to cause death or serious physical harm to its employees,” is known as (a):

 primary horizontal standard

 secondary horizontal standard

 general duty clause

 primary vertical standard

QUESTION 20

1. The requirements for OSHA record keeping can be found in __________.

 29 CFR 1910.55

 29 CFR 1904.29

 29 CFR 1910.50

29 CFR 1910.67

QUESTION 21

1.A review of 200 days-away-from-work injuries for a large, multi-facility corporation was conducted, and it was determined that 18 of them were due to lower back injuries. Only 14.3 were expected under normal conditions. The rest of the injuries were due to other causes where 185.7 were expected. What is the chi-square value? Discuss whether there was a significant difference in observed data vs. the expected data. Also, discuss how the process of hypothesis testing might prove helpful to the safety professional.

Summary of the data:

Observed data: 18 lower back injuries and 182 other injuries

Expected: 14.3 lower back injuries and 185.7 other injuries

Your response should be at least 200 words in length.

QUESTION 22

1.Calculate a t-test for the following scenario. An engineer is designing a stationary parts bin at a work table and considers using an established functional grip reach of 29.55 inches taken from the overall population mean, which was published in a textbook. However, the individuals who work in the facility represent a demographic that the engineer has noticed to be a bit small in stature. She decides to take a small sample to test her theory and randomly selects seven individuals and measures their reach. She comes up with the following data: 27.87, 29.49, 28.34, 28.20, 29.00, 29.56, 27.95 (inches). Calculate a mean and sample standard deviation, and use these values to perform a t-test on this data. Report all of these values. Also, discuss the concept of the p value and whether the data was significantly different from the population mean. Discuss whether the engineer was correct in assuming the reach of the worker population may be less than the population mean.

Your response should be at least 75 words in length.

 

 

QUESTION 1

• Match each item to the appropriate answer.

Hardness 5 mg/L 500 mg/L Hudson River food chain Flood control Rachel Carson’s Silent Spring Waterborne disease Minamata Bay Disinfectant Insect-borne disease

A. loam B. 0.05% C. calcium and magnesium D. chlorine E. 5000 ppb F. DDT G. malaria H. detention pond I. PCBs J. cholera K. mercury

40 points

QUESTION 2

• Describe dissolved oxygen, biochemical oxygen demand, and chemical oxygen demand. How are they different? What is the usefulness of knowing the concentration of each of them?
  Your response should be at least 200 words in length.

QUESTION 3

• What are the benefits of a drinking water treatment plant? In your response, include the origins of municipal drinking water treatment.
  Your response should be at least 200 words in length.