WBUT 2012: Basic Environmental Engineering & Elementary Biology (Paper Code: CH-401)

CS/B.TECH (New)(ECE/EE/EEE/EIE/ICE/PWE/BME)/SEM-4/CH-401/2012

2012

BASIC ENVIRONMENTAL ENGINEERING & ELEMENTARY BIOLOGY

Time Allotted : 3 Hours                                              Full Marks : 70

The figures in the margin indicate full marks.

Candidates are required to give their answers in their own words

as far as practicable.

GROUP – A

(Multiple Choice Type Question)

1.       Choose the correct alternatives for the following:     10 x 1 = 10

          i)       Which one of the following is a renewable source of energy?

                   a)      Thermal                        b)      Hydroelectric

                   c)      Nuclear                         d)      Solar.         

          ii)      Ozone is a pollutant when present in

                   a)      stratosphere                 b)      troposphere

                   c)      mesosphere                  d)      ionosphere.

          iii)     The unit of intensity level of noise is

                   a)      metre                            b)      candela

                   c)      newton                          d)      decibel.

          iv)     A greenhouse gas is

                   a)      CO                                 b)      H₂ S

                   c)      SO₂                                d)      H₂ O-vap.