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CSP练习题
 

1. The primary factor responsible for dust gaining entrance to the alveolar regions of the lung is
a.) Dust type
b.) Particle size
c.) Concentration
d.) Mucociliary system health
 
2. what are the three basic legal principles that can be used by plaintiffs in product liability cases? 
a.) Negligence, strict liability, Res Ipsa loquitar
b.) strict liability, express warranty, implied warranty
c.) Negligence, strict liability, breach of warranty
 
3. Which of the following is not a principle benefit of a Job Safety Analysis (JSA)?
a) Assist the supervisor in training
b.) Tool to study jobs for possible improvement
c.) Instruct new personnel on a specific job
d.) Replaces workplace procedures
 
4. Which of Me following is the preferred angle for fixed industrial ladders?
a.) 30 to 35 degrees
b.) 15 degrees
c.) 30 to 45 degrees
d.) 75 to 90 degrees
 
5. What is the failure rate of a device that has four components connected in series? Each component has a failure rate of 0. 005.
a) 0. 625
b.) 0. 05 × 104
c.) 0. 2
d.) 0. 02
 
6. According to the National Safely Council, the average number of drownings in the united States is 2. 7per 100, 000 population. What is the probability that your city of 250,000 will experience more than two drownings this year?
a) 0.964
b) 0.567
c) 0.828
d) 0.8425
 
7. During an inspection of an industrial area you observe the following conditions. A large dip tank of heated trichlorethylene located next to a large sealed tank containing 50% sodium hydroxide solution. Want hazards would be encountered if these materials are allowed to contact each other?
a.) Produce Chlorine GAS
b.) Could cause fire and explosion
c.) NaOH gives off cyanide gas
d.) No hazards, inert materials
 
8. A disease associated with slaughterhouses is?
a.) Neuropathy
b.) Photophobia
c.) Q-Fever
d.) Byssinosis
 
9. A work operation is being, conducted in a large three story underground vault. the operation consists of stick welding steel pipe on the third floor. A crew of two laborers is assigned to support the welders by transporting the large sections of steel pipe from the first floor where they are off loaded by a mobile crane. The temperature in the vault is about 90o F with a humidity of 85%. After about two hours of operation, one of the laborers is overcome and has to be removed from the area. His symptoms include pale pasty white complexion, nausea, headache, rapid pulse and low blood pressure. Which of the following best describes the condition that most likely caused this illness?
a.) Heat Exhaustion
b.) Carbon dioxide poisoning
c.) Carbon monoxide poisoning
d.) Metal fume fever
 
10. Monthly mobile crane inspection is required by OSHA 1926. 550 and is based on ANSI-STD B30. 5. Which of the following items would not normally be inspected on a monthly basis? 
a) Wire rope
b.) Reeving
c.) Lay of rope
d.) Magnetite switch
 
11. The Department of Transportation regulations found at 49 CFR part 392.5 prohibit commercial drivers from driving under the influence of alcohol or drugs. Under the provisions of these regulations drivers must not drink alcohol on duty or be under the influence of alcohol within ________hours before reporting for duty. 
a) 24 hours
b.) 4 hours
c.) 8 hours
d.) 12 hours
 
12. According to the OSHA asbestos standards which of the following best describes "Class I asbestos work"?
a) Activities involving the removal of TSI, surfacing ACM and PACM.
b.) Activities involving the removal of ACM which is not thermal system insulation or surfacing material, including the removal of asbestos-containing wallboard floor tile and sheeting, roofing and siding shingles, and construction mastics.
c.) Repair and maintenance operations, where "ACM", including TSI and surfacing ACM and PACM, is likely to be disturbed.
d.) Maintenance and custodial activities during which employees contact but do not disturb ACM or PACM and activities to clean up dust waste and debris resulting from asbestos work.
 
13. The pressure in a gas cylinder is 5 psig at 32 degrees F. The cylinder is allowed to heat to 140 degrees F in a commercial transportation van exposed to the sun. What is the new press1J1e in the gas cylinder?
a.) 20 psig
b.) 5 psig
c.) 24 psia
d.) 6 psig
 
14. Which of the following is true concerning placement of underground flammable liquid storage tanks with respect to a property line Hat may be built on? The distance from the tank to the property line must be at least
h) I foot for Class I liquids
b.) 5 feet for Class n liquids
c.) 5 feet for Class m liquids
d.) 3 feet for Class I liquids
 
15. Assuming complete evaporation and no air change, does the concentration created by the following conditions exceed the LEL? A leak in a pressurized piping system sprays 5 gallons of Ethyl alcohol in a room that is 15 feet by 15feet by 8 feet. The molecular weight of Ethyl alcohol is 46 and the SG is 0. 6.LEL is 3. 3%.
a) Yes, more than 3 times the LEL
b.) No. 50% of the LEL
c.) No. 25% of the LEL
d.) Yes, 10% over LEL
 
16. A company is considering purchasing a new piece of equipment to replace an older model that is now in use. The safety-related losses with the current equipment is $25, 000 per year and the cost associate with the purchase of the new equipment is $ 100, 000. The maintenance on the new equipment will cost about$500 more than the old equipment. Consider cost of capital is 5% and a 10 year service life with no salvage value, what is the best estimate of the annual benefit of purchasing the new equipment?
a.) $10, 550
b.) $11, 550
c.) $12, 950
d.) $24, 500
 
17. A radioisotope has a half-life of 1 year. How many years will it take to reduce the initial activity to less than 5%?
a.) 2 year
b.) 3 years
c.) 4 years
d.) 5 years
 
18. Using the following formula evaluate the effectiveness of the hearing protection provided to an employee who is using an ear plug assigned a MTR of 29combined with muffs (NRR = 25) when exposed to an 8 hour TWA of 110 dBA .Note When two noise reduction devices are used, calculate the attenuation based on the most effective and add 5 for the second.

a.) Protected TWA = 99
b.) Protected TWA = 94
c.) Protected TWA = 110
d.) Protected TWA = 84
19. What level of oxygen is required if personnel are to enter a confined space without breathing apparatus?
a.) 19. 0%
b.) 17. 5%
c.) 19. 5%
d.) 16%
 
20. Your company has a cutting area with 5 identical machines. The noise is monitored at 97 dB.  If 4 machines were removed from the are what would you expect for the new noise measurement?
a) 90dB
b) 92dB
c) 97dB
d) 104dB