Top 350+ Solved Environmental Engineering MCQ Questions Answer
Q. Which of the following fuel has maximum resistance to detonation?
a. Toulene
b. Benzene
c. Iso-octane
d. n-heptane
e. None of the above
Q. The most frequent method of bacterial reproduction is by
a. Cell division
b. Sexual process
c. Budding
d. Colony formation
e. The formation of spores
Q. Normally the colour of exhaust from a diesel engine is
a. black
b. white
c. yellow
d. reddish
e. None of the above
Q. Geiger Muller counter can detect
a. beta rays
b. X-rays
c. gamma rays
d. All of the above
e. None of the above
Q. Which of the following radio-nuclide has the shortest half life?
a. Carbon 14
b. Cesium 137
c. Cobalt 60
d. Iodine 131
e. None of the above
Q. The becteria that can survive without oxygen is called
a. Facultative bacteria
b. Anerobic bacteria
c. Aerobic bacteria
d. Furobic bacteria
e. All of the above
Q. Bit is the unit of
a. Amount of rain recorded
b. Memory of computer
c. Quantity of electricity
d. Intensity of an earthquake
e. None of these
Q. The speed of sound will be maximum through
a. Water
b. Alcohol
c. Concrete
d. Aluminium
e. None of the above
Q. Dark, black smoke from diesel engines usually results when engine is
a. Idling
b. Running at slow speeds
c. Running at light loads
d. Running at full speed but under load conditions
e. Running at full load and full speed
Q. The noise level due to auto horn may be of the order of
a. 110 dB
b. 80 dB
c. 50 dB
d. 35 dB
e. None of the above
Q. Which one among the following terms best describes the method of converting a spherical surface into a plane surface?
a. Photogrammetry
b. Projection
c. Cartography
d. Geodesy
e. None of these
Q. Small concentrations of fluorides in water
a. reduce the prevalence of dental caries
b. increase the prevalence of dental carries
c. cause irritation in eyes
d. do not arm in any way
e. None of the above
Q. The disadvantage of hard water is
a. More soap consumption
b. Scale formation in boilers
c. Corrosion of pipes
d. Loss of taste in food
e. All of the above
Q. The permissible hardness of water for public supplies is
a. 10 mg/litre
b. 25 mg/litre
c. 75 mg/litre
d. 115 mg/litre
e. 400 mg/litre
Q. For the combustion of 1 kg of carbon, the quantity of oxygen required is
a. 2.62 kg
b. 3.67 kg
c. 8 kg
d. 11.6 kg
e. None of the above