SPSC 2013Recruitment TestQuestion Paper

SPSC 2013 Assistant Director BPS-17, Environment & Alternative Energy Department (2013) — Paper Type A Paper

The official SPSC CCE 2013 Assistant Director BPS-17, Environment & Alternative Energy Department (2013) — Paper Type A question paper (recruitment test), set by the Sindh Public Service Commission. Every MCQ is typed out below with its correct answer marked.

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SPSC 2013 Assistant Director BPS-17, Environment & Alternative Energy Department (2013) — Paper Type A paper — full text

Every MCQ from the paper, with the correct answer marked in green.

Assistant Director BPS-17, Environment & Alternative Energy Department (2013) — Paper Type A. Pre-interview written test · Saturday 21 December 2013, 10:00 am to 11:00 am · Maximum marks 100. 50 MCQs; each incorrect answer deducts half mark.

1Which of the following is LEAST likely to be an effect of global warming?
- A)Loss of fertile delta regions (to sea-level rise)
- B)Change in global patterns of precipitation
- C)Extinction of some species that have narrow temperature requirements
- D)Decreased rate of photosynthesis in vegetation
Explanation: More CO₂ tends to raise, not lower, photosynthesis.
2Which of the following is the best example of environmental remediation?
- A)A species of trout becomes extinct in a eutrophic lake.
- B)The annual volume of sewage flowing into a stream is decreased by one half.
- C)The height of a factory smokestack is increased.
- D)PCB-consuming bacteria are sprayed on an area that has soil contaminated with PCB's
3The age of the earth can be estimated by:
- A)thickness of sedimentary rocks
- B)Changes in radioactive Minerals
- C)The amount of salt present in sea water
- D)The amount of erosion
4The greenhouse gas with high heat trapping capability is:
- A)carbon dioxide
- B)Nitrous oxide
- C)Sulphur hexafluoride
- D)Methane
Explanation: SF₆ has the highest global-warming potential (about 23,500 × CO₂).
5What does "system" imply in the terms "ecosystem"?
- A)Environment
- B)Interdependent Complex
- C)System approach
- D)Ecological
6Turbidity is caused due to:
- A)Settled matter
- B)Dissolved Impurities
- C)Suspended matter
- D)None of these
7Global warming is due to:
- A)Ozone depletion
- B)Acid rain
- C)Greenhouse effect
- D)All of the above
8Overgrazing and poor cultivation can lead to:
- A)Deforestation
- B)Desertification
- C)Incineration
- D)All of the above
9Ocean dumping is source of pollution for:
- A)Land and water environments
- B)Land environments only
- C)Air environments only
- D)None of the above
Explanation: As usually keyed: dumped waste pollutes the sea and washes up on coasts.
10Microorganisms that cause disease are classified as:
- A)Pathogens
- B)Organic materials
- C)Inorganic
- D)All of these above
11The first step in sewage treatment process is:
- A)Screening
- B)Chlorination
- C)Grit removal
- D)None of the above
12A pollutant that can reduce the amount of oxygen carried by blood is:
- A)Carbon monoxide
- B)Carbon Dioxide
- C)Sulphur Oxide
- D)None of the above
13Sounds can cause physical pain if they are louder than:
- A)70 dB
- B)50 dB
- C)80 dB
- D)120 dB
14There are four ways to handle garbage once it is generated, they are:
- A)compaction, recycling, land filling and degradation
- B)Chopping, slicing, dicing, and Land filling
- C)Compacting, recycling, incineration and land filling
- D)Composting, recycling, incineration and land filling
15Which two items are recycled most frequently:
- A)Shoes and socks
- B)Corrugated boxes and aluminum cans
- C)Newspapers and aluminum cans
- D)Steel cans glass bottles
16Most waste generated in the house can be recycled but there are certain items that cannot be recycled. In the list given below which item is not recyclable?
- A)News paper
- B)Plastic bags
- C)Old medicines
- D)Glass bottles
17To manufacture of 85 million tons of papers, how many trees are cut down and processed.
- A)1.4 billion trees
- B)3 billion trees
- C)5.2 billion trees
- D)6 billion trees
Explanation: About 17 trees per ton of paper: 85 million × 17 ≈ 1.4 billion.
18"Close the loop" on recycling is becoming a popular catchphrase in the world of waste management. What does it refer to:
- A)Tying up your recycling securely
- B)Buying recycled products
- C)Dropping of recycling at a certified recycling centre
- D)Living an environmental lifestyle besides just recycling
19One kilowatt hour of electricity is equal to British thermal units of
- A)13
- B)413
- C)3413
- D)None of the above
20A nuclear power plant (KANUPP), installed in Karachi, has the capacity of
- A)50 MW
- B)100 MW
- C)133 MW
- D)165 MW
Explanation: KANUPP-1 was rated at 137 MW gross (125 MW net); 133 MW is the nearest option.
21The amount of solar energy received per second per unit area of earth's surface at an average distance between the sun and the earth is known as:
- A)Solar absorber
- B)Solar constant
- C)Solar radiation
- D)All of the above
22What type of energy is possessed by wind:
- A)Potential energy
- B)Mechanical energy
- C)Kinetic energy
- D)Gravitational energy
23Which of the following is a greenhouse gas?
- A)Methane
- B)Oxygen
- C)Nitrogen
- D)Hydrogen
24The Kyoto protocol to the United Nations Framework Convention on Climate Change (UNFCCC) is an international treaty that sets binding obligations on industrialized countries to
- 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
25NEQS stands for
- A)National Environmental Quantitative standards
- B)National Energy Quantitative Standards
- C)National Environmental Quality Standards
- D)National Energy Quality Standards
26The 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
27Which of the following is a major pollutant causing acid rain?
- A)Carbon dioxide
- B)Carbon monoxide
- C)Hydrogen peroxide
- D)Sulphur dioxide
28Air consists of ____ % carbon dioxide
- A)0.3
- B)0.03
- C)0.003
- D)0.0003
Explanation: About 0.03–0.04%.
29Heat 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
30A natural phenomenon that becomes harmful due to pollution is
- A)Deforestation
- B)Ecological balance
- C)Greenhouse (effect)
- D)Desertification
31Non-biodegradable waste which may pollute the earth to dangerous levels of toxicity, if not handled properly is
- A)DDT
- B)CFC
- C)Radioactive substances
- D)PAN
Explanation: As usually keyed; DDT is also non-biodegradable.
32Complete the equation CH₄ + 2O₂ → CO₂ + ____
- A)H₂O
- B)4H₂O
- C)H₂O₂
- D)2H₂O
33Presence of bacteria in potable (drinking) water causes
- A)Turbidity
- B)Bad odor
- C)Disease
- D)Bad Taste and Color
34A standard test for determination of hardness in water is termed as
- A)Electrometric
- B)Total count
- C)Presumptive
- D)EDTA
35Smog is not formed due to the presence of ____ in the atmosphere.
- A)SO₂
- B)NOx
- C)CO₂
- D)All of the above
36Which is not a chemical coagulant?
- A)Aluminum (alum)
- B)Ferrous sulphate
- C)Hydrated Lime
- D)Chloramine
Explanation: Chloramine is a disinfectant.
37World environment day is observed every year on the 5th of
- A)June
- B)July
- C)October
- D)December
38Which of the following is a greenhouse gas?
- A)Methane
- B)Oxygen
- C)Nitrogen
- D)Hydrogen
Explanation: Same as Q23.
39Pakistan television started its color transmission in:
- A)20 December 1976
- B)20 December 1972
- C)20 December 1974
40Pipri (Sindh) is the old name of
- A)Ahmadabad
- B)Dera pipri
- C)Bin Qasim
Explanation: Port Muhammad Bin Qasim was built at Pipri, near Karachi.
41The largest Natural gas field is:
- A)Sui
- B)Dhodak
- C)Kohi Namak
42Pakistan is bounded in North west by
- A)Karakorum Range
- B)Hindu Kush Range
- C)Himalaya
43Siachen glacier is a part of
- A)Gilgit
- B)Baltistan
- C)Hunza
44The rivers Ravi, Sutlej, Indus, Jhelum, Chenab meet at
- A)Farid Kot
- B)Mithan Kot
- C)Arabian sea
45Tirch Mir is the largest peak of ____
- A)Karakoram
- B)Hindu Kush
- C)Himalayas
- D)Rawalpindi
46Addison's disease is caused by the Excessive secretion of:
- A)Antidiuretic Hormone
- B)Luteinising Hormone
- C)Melanophore stimulating Hormone
- D)Adrenocorticotrophic Hormone
Explanation: Addison's disease is a deficiency of adrenal cortex hormones; the pituitary then over-secretes ACTH, which darkens the skin. D is the intended answer.
47Development of calf muscles in ladies who wear high heels is a common example of:
- A)Natural selection
- B)Inheritance of acquired character
- C)Use and disuse of organ
- D)Artificial selection
48Margala Hill is the branch of:
- A)Karakoram range
- B)Himalaya Range
- C)Hindukush Range
- D)Nanga Parbat Range
49The Japan is called:
- A)Land of Earthquakes
- B)Land of rising Sun
- C)Land of rivers
- D)Land of Volcano's
50The famous book Al-Qanoon was written by muslim scientist:
- A)Jabir ibn Hayan
- B)Zakariya al Razi
- C)Abu Ali Sina
- D)Abdul Qasim Majriti