SPSC Assistant Director Past Paper Dated: 21-12-2023
21- The amount of solar energy received per second per earth is known as:
A. Solar absorber
B. Solar constant
C. Solar radiation
D. All of the above
View Answer
Answer : B. Solar constant
Description
22- What type of energy is possessed by wind?
A. Potential energy
B. Mechanical energy
C. Kinetic energy
D. Gravitational energy
View Answer
Answer : C. Kinetic energy
Description
23- Which of the following is a greenhouse gas?
A. Methane
B. Oxygen
C. Nitrogen
D. Hydrogen
View Answer
Answer : A. Methane
Description
24- The Kyoto protocol to the United Nations Framework Convention on Climate Change (UNFCCC) is an international treaty that sets binding obligations on industrialized countries.
A. Reduce emission of greenhouse gases
B. Reduce the use of un-conventional energy sources
C. Increase use of fossil fuels
D. Conserve biodiversity and plants
View Answer
Answer : A. Reduce emission of greenhouse gases
Description
25- NEQS stands for?
A. National Energy Quantitative Standards
B. National Environmental Quantitative standards
C. National Environmental Quality Standards
D. National Energy Quality Standards
View Answer
Answer : C. National Environmental Quality Standards
Description
26- The biophysical environment is the ______ and ______ surrounding of an organism or population.
A. Biotic and Abiotic
B. Physical and Chemical
C. Biological and Chemical
D. None of the above
View Answer
Answer : A. Biotic and Abiotic
Description
27- Which of the following is a major pollutant causing acid rain?
A. Carbon dioxide
B. Carbon monoxide
C. Hydrogen peroxide
D. Sulphur dioxide
View Answer
Answer : D. Sulphur dioxide
Description
28- Air consists of ______ carbon dioxide.
A. 0.3
B. 0.03
C. 0.003
D. 0.0003
View Answer
Answer : B. 0.03
Description
29- Heat produced by radioactive materials deep beneath the surface of the earth is called?
A. Solar energy
B. Earth Energy
C. Electric Energy
D. Geothermal Energy
View Answer
Answer : D. Geothermal Energy
Description
30- A natural phenomenon that becomes harmful due to pollution.
A. Deforestation
B. Ecological balance
C. Greenhouse
D. Desertification
View Answer
Answer : C. Greenhouse
Description
31- Non-biodegradable waste which may pollute the earth to dangerous levels of toxicity, if not handled properly is?
A. CFC
B. DDT
C. Radioactive substances
D. PAN
View Answer
Answer : C. Radioactive substances
Description
32- Complete the equation CH_4+2O_2 = ?
A. H2CO
B. H2CO3
C. H2O
D. 2H2CO
View Answer
Answer : C. H2O
Description
33- Presence of bacteria in potable (drinking) water causes?
A. Turbidity
B. Bad odor
C. Disease
D. Bad Taste and Color
View Answer
Answer : C. Disease
Description
34- A standard test for determination of hardness in water is termed as:
A. Electrometric
B. Total count
C. Presumptive
D. EDTA
View Answer
Answer : D. EDTA
Description
35- Smog is not formed due to the presence of ______ in the atmosphere.
A. SO2
B. NOx
C. CO2
D. All of the above
View Answer
Answer : C. CO2
Description
36- Which is not a chemical coagulant?
A. Aluminum
B. Ferrous sulphate
C. Hydrated Lime
D. Chloramine
View Answer
Answer : D. Chloramine
Description
37- World environment day is observed every year on the 5th of?
A. June
B. July
C. October
D. December
View Answer
Answer : A. June
Description
38- Which of the following is a greenhouse gas?
A. Methane
B. Oxygen
C. Nitrogen
D. Hydrogen
View Answer
Answer : A. Methane
Description
39- Pakistan television started its color transmission in:
