Engineering :: Environmental Engineering
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111. |
Which of the following area of work needs lowest level of illumination? |
A. |
Engraving |
B. |
Cloth inspection |
C. |
Assembly of instrument |
D. |
Paper converting processes |
Answer: Option D
Explanation:
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112. |
Scintillation counter can detect |
A. |
beta rays |
B. |
X-rays |
C. |
gamma rays |
D. |
All of the above |
Answer: Option D
Explanation:
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113. |
The incubation period of Typhoid bacillus causing typhoid fever is |
A. |
1 to 3 days |
B. |
3 to 5 days |
C. |
7 to 21 days |
D. |
20 to 30 days |
Answer: Option C
Explanation:
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114. |
For minimal eye irritation, pH value of swimming pool water should be in the range |
A. |
6.2 to 6.8 |
B. |
6.5 to 7.0 |
C. |
7.0 to 7.2 |
D. |
7.5 to 7.6 |
Answer: Option D
Explanation:
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115. |
Which of the following area of work needs highest level of illumination? |
A. |
Bakeries |
B. |
Book binding |
C. |
Confectionary factory |
D. |
Clothing factory |
Answer: Option D
Explanation:
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116. |
The desirable temperature inside an air conditioned auditorium is |
Answer: Option D
Explanation:
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117. |
Curies is a measure of |
A. |
biological effect of radiation which a man can sustain |
B. |
the rate at which atoms of radioactive sources disintegrate |
C. |
86 ergs of energy per gram of air |
D. |
ions percent in an ionised gas |
Answer: Option A
Explanation:
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118. |
Low grade fuels have |
A. |
low moisture content |
B. |
low ash content |
C. |
low calorific value |
D. |
low carbon content |
Answer: Option C
Explanation:
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119. |
Water gas is a mixture of |
A. |
CO and H2 |
B. |
N2 and H2 |
C. |
CO2 and N2 |
D. |
SO2, CO2 and N2 |
Answer: Option A
Explanation:
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120. |
A fuel of octane rating 85 matches the antiknock qualities of a mixture consisting of |
A. |
85% petrol + 15% diesel |
B. |
15% petrol + 85% diesel |
C. |
85% benzene + 15% methyl chloride |
D. |
85% octane + 15% heptane |
Answer: Option D
Explanation:
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