Eed 209: Environmental Laboratory And Field Education Question Paper

Eed 209: Environmental Laboratory And Field Education

Course:Bachelor Of Science In Environmental Education

Institution: Kenyatta University question papers

Exam Year:2012

DATE: Tuesday, 3rd April, 2012

TIME: 2.00 p.m. – 4.00 p.m.
------------------------------------------------------------------------------------------------------------
INSTRUCTIONS:
Answer question ONE and any other THREE.
Q.1
a)
Discuss soil sampling process and how a representative laboratory sample

is obtained.

(10 marks)

b)
Discuss the factors you would consider in selecting an analytical method
and how you would verify that your method works properly. (10 marks)

c)
Discuss the relationship between the overall error with the analytical and
sampling error.

(5 marks)
Q.2
Describe sample decomposition by

a)
Wet ashing

b)
Dry ashing

c)
Microwave digestion

(15 marks)
Q.3
Explain how the mandatory safety fittings, Good laboratory practices, GLP, and

simple laboratory regulations minimize laboratory accidents.
(15 marks)
Q.4
Explain how you would analyse for phosphate in

i)
Water sample

ii)
Soil sample

(15 marks)
Q.5
Describe equipment requirements for measurement of air, water and noise

pollution and relate them to the Kenya Bureau of Standards quality standards.

(15 marks)

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