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Environmental Studies Questions and Answers for Competitive Exams | Environmental Studies Quiz Set 9

Questions
1 IAIA stands for
1 International Association of Impact Assessment
2 Indian Association of Impact Assessment
3 International Assembly of Impact Assessment
4 Indian Assembly of Impact Assessment

Answer: International Association of Impact Assessment
2 Municipal Solid Wastes (MSWs) have the heating value typically in the range
1 9,300 to 12,800 kJ/kg
2 1000 to 2500 kJ/kg
3 1780 to 2830 kJ/kg
4 530 to 780 kJ/kg

Answer: 9,300 to 12,800 kJ/kg
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3 The Motor Vehicles Act 1938 was amended in which year ?
1 1972
2 1980
3 1988
4 1986

Answer: 1988
4 The following statistical test is used to ascertain whether there is significant difference between the variances of two sets of observations :
1 t-test
2 F-test
3 Chi square test
4 Regression

Answer: F-test
5 The geometric mean of the following data :4, 10, 25, 10 is
1 10
2 5
3 12.25
4 100/49

Answer: 10
6 United Nations Conference on Environment, also termed as Earth Summit, was held in 1992 in which city ?
1 Rio de Janeiro
2 Kyoto
3 Stockholm
4 Copenhagen

Answer: Rio de Janeiro
7 In which part of India, the tropical Western Ghats are situated ?
1 Punjab
2 Rajasthan
3 Gujarat
4 Kerala

Answer: Kerala
8 Variety of different species, genetic variability among individuals within each species and variety of ecosystems constitute the so called
1 Species diversity
2 Genetic diversity
3 Biological diversity
4 Ecological diversity

Answer: Biological diversity
9 Baba Amte was the leader of
1 Appiko Movement
2 Chipko Movement
3 Narmada Bachao Andolan
4 Tehri Dam Movement

Answer: Narmada Bachao Andolan
10 In a multiple regression model, the f-ratio is used to test the
1 Variance of the data
2 Standard error of mean
3 R2 value
4 Overall goodness of fit of the model.

Answer: Overall goodness of fit of the model
11 If the mean of a sample is 20, the standard error of mean is 1 and the t-statistic for 95% level of confidence is 2.5, the population mean will be in the range
1 17.5 to 22.5
2 15 to 25
3 20 to 25
4 15 to 20

Answer: 17.5 to 22.5
12 The third moment about the mean of a distribution of a set of observations is a measure of
1 Mode
2 Skewness
3 Kurtosis
4 Variance

Answer: Skewness
13 Consider an air shed over a city in the form of a rectangular box. The wind velocity is 5 m/sec normal to left face of the box. The length of the box along the direction of wind is 10 km and mixing height is 1 km. Assuming rapid mixing of the pollutants which are conservative in nature, the concentration of the pollutants in the city would reach 63% of its final value in
1 2,000 sec
2 5,000 sec
3 10,000 sec
4 1,000 sec

Answer: 2,000 sec
14 Which one of the following states of mercury is volatile ?
1 Organic
2 Organic
3 Atomic
4 All of the above

Answer: Atomic
15 Which one of the following is a peroxyl radical ?
1 OH
2 R
3 RO
4 ROO

Answer: ROO

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