GATE ES topic:hazardous-waste-management PYQs & Answers

Questions 1–7 of 7. Imported answers require independent review unless marked reviewed.

Which of the following statements is/are CORRECT in the context of hazardous waste management and its risk assessment?

Your answerSelect all correct options. You can choose more than one.

Risk is estimated based on the probability of an action occurring multiplied by the severity of damage.

High octanol water constant (

) is indicative of lower accumulation of an organic chemical in body tissue.

Pump and treat is an example of contaminated groundwater remediation.

Biological treatment processes are never applied for hazardous waste management.

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

Choose the correct option(s) from the following regarding cumulative toxicity

Your answerSelect all correct options. You can choose more than one.

Bioaccumulation is the process by which a living organism keeps on accumulating pollutants in its body due to continuous exposure, whereas, bio-magnification is the process by which higher order organisms accumulate more pollutants than the lower order organisms in a food chain.

Biomagnification is the process by which a living organism keeps on accumulating pollutants in its body due to continuous exposure, whereas, bioaccumulation is the process by which higher order organisms accumulate more pollutants than the lower order organisms in a food chain.

Bioaccumulation and biomagnification are possible with heavy metals, but not with pesticides and pharmaceutical compounds.

Bioaccumulation and biomagnification are possible with heavy metals, pesticides and pharmaceutical compounds.

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

Water from a hand pump located near a landfill has 1 mg/L arsenic (oral carcinogenic potency factor = 1.75 (kg-day)/mg). A person who lives nearby drinks 2 L/day water from this hand pump for 10 years. Assume body weight of 70 kg and 70 years as average life duration. Chances of this person getting excess risk of cancer is __________________ ×10

. (rounded off to three decimal places)

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

As per the Hazardous Waste (Management and Handling) Rules, 2016, of India, which is/are the characteristic(s) that must be exhibited by a waste to be classified as a “characteristic” hazardous waste?

Your answerSelect all correct options. You can choose more than one.

Ignitability

Reactivity

Radioactivity

Toxicity

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

Consider the following waste categories

i) Domestic Hazardous Waste ii) Nuclear Waste iii) Sludge from wet scrubbers of hazardous waste treatment processes iv) Chromium bearing residue and sludge from leather tanneries

Which one of the options correctly represents the waste categories NOT covered under Hazardous and Other Wastes (Management and Transboundary Movement) Rules, 2016 of Government of India?

Your answerChoose one option.

(i) and (ii) only

(i) and (iii) only

(ii) and (iv) only

(i), (ii) and (iii) only

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

As per ‘Hazardous and Other Wastes (Management and Transboundary Movement) Rules, 2016 of Govt. of India, the import of hazardous and other wastes from any country shall NOT be permitted for which of the following option(s)?

Your answerSelect all correct options. You can choose more than one.

Recovery, reuse and recycle

Disposal in abandoned mines

Safe disposal in engineered landfills

Utilization, including co-processing

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

An underground hazardous waste storage tank is leaking. The contaminant concentration directly beneath the site is 0.5 mg/L. The contaminant is travelling at an effective rate of 0.4 m per day towards a water well which is 2 km away. Assume that the degradation of the contaminant follows a first order reaction, and the initial concentration of the contaminant becomes half in 10 years. In this case, the contaminant concentration expected at the well under steady state conditions is ______ mg/L (rounded off to two decimal places).

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

GATE ES topic:hazardous-waste-management PYQs

How to practice topic:hazardous-waste-management

Question 31

Question 33

Question 65

Question 31

Question 21

Question 32

Question 47