Explore topic-wise MCQs in Hazardous Waste Management.

This section includes 16 Mcqs, each offering curated multiple-choice questions to sharpen your Hazardous Waste Management knowledge and support exam preparation. Choose a topic below to get started.

1.

LD50 in a toxicity test stands for ______

A. a dose that will kill 50% of an exposed population
B. a dose that would not affect or harm 50% of an exposed population
C. a dose that will kill 25% of an exposed population
D. a dose that would not kill 25% of an exposed population
Answer» B. a dose that would not affect or harm 50% of an exposed population
Discussion
2.

What is the third step of risk assessment?

A. Hazard identification
B. Toxicity assessment
C. Exposure assessment
D. Corrosivity assessment
Answer» C. Exposure assessment
Discussion
3.

What is the main objective of toxicity assessment?

A. To determine source of pathway
B. To determine chemical concentration
C. To estimate how much of a substance does what kind of harm.
D. To analyse chemical exposure
Answer» D. To analyse chemical exposure
Discussion
4.

Which toxicity test is preferable to determine the acute or chronic toxicity of air, water and wastewater discharges or total pollutant loads?

A. Indirect toxicity test
B. Direct toxicity test
C. Chemical analysis
D. High toxicity test
Answer» C. Chemical analysis
Discussion
5.

Toxicity test is the experimental study of the adverse effects of exposure of a living organism to a substance for a defined duration under defined conditions.

A. True
B. False
Answer» B. False
Discussion
6.

WHAT_IS_THE_MAIN_OBJECTIVE_OF_TOXICITY_ASSESSMENT??$

A. To determine source of pathway
B. To determine chemical concentration
C. To estimate how much of a substance does what kind of harm.
D. To analyse chemical exposure
Answer» D. To analyse chemical exposure
Discussion
7.

LD50 in a toxicity test stands for ______$

A. a dose that will kill 50% of an exposed population
B. a dose that would not affect or harm 50% of an exposed population
C. a dose that will kill 25% of an exposed population
D. a dose that would not kill 25% of an exposed population
Answer» B. a dose that would not affect or harm 50% of an exposed population
Discussion
8.

What is the third step of risk assessment?$

A. Hazard identification
B. Toxicity assessment
C. Exposure assessment
D. Corrosivity assessment
Answer» C. Exposure assessment
Discussion
9.

Which toxicity test is preferable to determine the acute or chronic toxicity of air, water and wastewater discharges or total pollutant loads?

A. Indirect toxicity test
B. Direct toxicity test
C. Chemical analysis
D. High toxicity test
Answer» C. Chemical analysis
Discussion
10.

_________ is an interpretation tool which enables toxicity of unknown mixtures of chemicals be converted into the concentration of an equivalently toxic reference substance.

A. Toxicity equivalencing
B. Toxicity index
C. Toxicity proportion
D. Toxicity interpretation
Answer» B. Toxicity index
Discussion
11.

Results from long-term exposure to lower doses of a chemical is known as ________

A. Acute toxicity
B. Chronic toxicity
C. Moderate toxicity
D. High toxicity
Answer» C. Moderate toxicity
Discussion
12.

Toxicity test is the experimental study of the adverse effects of exposure of a living organism to a substance for a defined duration under defined conditions. True of False.

A. True
B. False
Answer» B. False
Discussion
13.

What is toxicity equivalence factor?

A. Ratio of the toxicity of a chemical to that of another structurally related chemical (or index compound) chosen as a reference
B. Ratio of the toxicity of a contaminant to that of another structurally related chemical (or index compound) chosen as a reference
C. Ratio of the toxicity of a chemical to that of another chemical pollutant chosen as a reference
D. Ratio of the toxicity of a chemical to that of source
Answer» B. Ratio of the toxicity of a contaminant to that of another structurally related chemical (or index compound) chosen as a reference
Discussion
14.

Which of the following is not characteristics of hazardous waste?

A. Toxicity
B. Corrosivity
C. Ignitibility
D. Leakage
Answer» E.
Discussion
15.

___________ establishes the relationship between the contaminant/s of concern and the receptor.

A. Hazard identification
B. Toxicity assessment
C. Risk characterisation
D. Exposure assessment
Answer» C. Risk characterisation
Discussion
16.

What are the steps involved in evaluation of toxicity?

A. hazard identification and dose-response evaluation
B. chemical analysis
C. pathway analysis
D. evaluation of long term impact
Answer» B. chemical analysis
Discussion