Maximum allowable concentration of CO₂ in air for safe working is _________

Question

Maximum allowable concentration of CO₂ in air for safe working is __________ ppm (parts per million).

Options:

A . 5000

B . 2000

C . 1000

D . 50

Answer: Option A

Submit Your Solution Below and Earn Points !

Next Question

More Questions on This Topic :

Question 1. Average human body contains about __________ percent water by weight.....

Question 2. Threshold limit value (TLV) means maximum permissible/acceptable concentration. TLV of phosgene in air is about ________....phosgene in air is about __________ ppm (parts per million).

Question 3. Septic tanks are used for the __________ of the deposited solids.....

Question 4. Maximum permissible concentration (i.e. TLV) of DDT in public water supply system is __________ micro gram (μ g)/litre.....public water supply system is __________ micro gram (μ g)/litre.

Question 5. Acute danger to human life (i.e. death) exists, if the concentration of CO₂ in atmospheric air exceeds __________ perc....of CO₂ in atmospheric air exceeds __________ percent (by volume).

Question 6. CFC (chloro fluoro carbon) is very highly reactive in causing depletion of ozone layer in the atmosphere. Each atom of c....from CFC is capable of decomposing __________ molecules of ozones.

Question 7. Reingleman chart No. 2 corresponds to __________ percent black smoke.....

Question 8. Fluorosis (a bone disease) is caused by the presence of high concentration of __________ in atmospheric air.....

Question 9. As per the world health organisation (WHO) specification, the maximum permissible concentration (i.e., TLV) of particula....(i.e., TLV) of particulate matter in air is __________ μg/m³.(μg-microgram)

Question 10. Maximum permissible limit of mercury in human blood is __________ micrograms/100 c.c.....

Chapter 1 - GLOBAL STEEL SCENARIO & INDIAN STEEL INDUSTRY Part 1 : (13-04-2024) INDUSTRY AND COMPANY AWARENESS (ICA)

Direction Sense Test Part 1 Reasoning (Hindi)

Chapter 1 - RMHP / OHP / OB & BP Part 1 : (14-02-2024) GPOE

Cube & Cuboid Part 1 Reasoning (Hindi)

Data Interpretation (DI) Basic Concept Reasoning (Hindi)

Counting Figures Part 1 Counting Of Straight Lines Reasoning (Hindi)

Sail E0 free webinar Webinars

Real Numbers Part 7 Class 10 Maths

Real Numbers Part 1 Class 10 Maths

Polynomials Part 1 Class 10 Maths

DSP Combined 1 Free Revision Test SAIL JO E-0

GPOE / GPA Combined 1 Free Revision Test SAIL JO E-0

BSP Plant Specific Review Test SAIL JO E-0

BSL Combined 1 Free Revision Test SAIL JO E-0

GFM Combined 1 Free Revision Test SAIL JO E-0