Factory Ventilation Regulations

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Questions and Answers

What is the minimum educational qualification required for designing ventilation systems?

Certificate in Ventilation System Design

Diploma in Mechanical or Electrical Engineering

Postgraduate degree in Environmental Engineering

Degree in Mechanical or Electrical Engineering or equivalent (correct)

What is the primary purpose of ventilation systems in workplaces?

To control temperature and humidity

To reduce noise levels

To provide fresh air for workers

To extract and collect dusts, fumes, and vapors (correct)

What is the minimum experience required for designing ventilation systems?

10 years in the design, fabrication, installation, testing of ventilation systems

5 years in the design, fabrication, installation, testing of ventilation systems

7 years in the design, fabrication, installation, testing of ventilation systems (correct)

3 years in the design, fabrication, installation, testing of ventilation systems

What is the purpose of facilities for testing ventilation systems?

To test the performance of ventilation systems Signup and view all the answers

What is the purpose of instruments and gauges in ventilation system testing?

All of the above Signup and view all the answers

What is the primary concern in designing ventilation systems for foundry operations?

Dust and fume extraction Signup and view all the answers

What is the purpose of ventilation openings in workplaces?

To provide natural ventilation Signup and view all the answers

What is the purpose of mechanical ventilation in workplaces?

To supplement natural ventilation Signup and view all the answers

What is the meaning of 'artificial humidification' according to the Factories Act, 1948?

The introduction of moisture into the air of a room by any artificial means whatsoever, except the unavoidable escape of steam or water vapour into the atmosphere directly due to a manufacturing process Signup and view all the answers

What does the term 'degrees' refer to in the context of the Factories Act, 1948?

Degrees on the centigrade scale Signup and view all the answers

What is the purpose of a hygrometer in the context of the Factories Act, 1948?

To measure humidity Signup and view all the answers

Who is responsible for maintaining a factory for the purpose of the Factories Act, 1948?

The Manager Signup and view all the answers

What is the definition of 'maintained' in the context of the Factories Act, 1948?

In an efficient state, in efficient working order and in good repair Signup and view all the answers

What is included in the definition of 'belt' in the context of the Factories Act, 1948?

Any driving strap or rope Signup and view all the answers

What does the term 'fume' include in the context of the Factories Act, 1948?

Gas or vapour Signup and view all the answers

Who is the Health Officer as defined in the Factories Act, 1948?

The Municipal Health Officer or District Health Officer or such other official as may be appointed by the State Government Signup and view all the answers

According to the given sub-rule, when can an Inspector order a factory manager to provide additional ventilation?

When the factory's workroom has a high temperature that is likely to exceed the prescribed limits. Signup and view all the answers

What is the minimum amount of fresh air required per hour by mechanical ventilation, according to the sub-rule?

Equivalent to six times the cubic capacity of the workroom. Signup and view all the answers

What is the primary goal of the ventilation requirements specified in the sub-rule?

To maintain a comfortable and safe working environment for employees. Signup and view all the answers

In regions with high summer temperatures, what cooling method can the Inspector order the factory manager to implement?

Using water sprays to cool the incoming outside air. Signup and view all the answers

What is the maximum permissible relative humidity in a workroom when the Inspector considers the manufacturing process to be suitable for a thermal environment with high humidity?

50% or more. Signup and view all the answers

Which of the following is NOT a requirement for ventilation specified in the sub-rule?

Ventilation systems should be able to heat the workroom during the winter months. Signup and view all the answers

What does the sub-rule state about the ventilation openings in a factory?

Ventilation openings should be large enough to allow for natural ventilation. Signup and view all the answers

What type of ventilation is mentioned as an option for factories with high summer temperatures?

Evaporative cooling Signup and view all the answers

Study Notes

Ventilation in Factories

In cases where meeting ventilation opening requirements is impossible due to adjacent buildings and height, the Inspector may order the manager to provide additional ventilation using roof ventilators or mechanical means.
Mechanical ventilation must supply at least six times the cubic capacity of the workroom in an hour, distributed evenly without dead air-pockets or undue draughts.

Special Climate Conditions

In regions where outside air temperatures exceed 35°C with a wet-bulb temperature of 25°C or below (15th March-15th July), the Inspector may order the manager to cool outside air by passing it through water sprays using unit-type evaporative air coolers or central air washing plants.

Rules for Safety Officers

A safety officer must be conversant with hazardous properties of chemicals, their permissible limit values, and certification of safety in working in confined spaces.
They must also be familiar with current techniques of sampling and analysis of environmental contaminants and able to arrive at a reliable conclusion regarding safety.

Qualifications for Ventilation System Designers

A designer must have a degree in Mechanical or Electrical Engineering or equivalent and at least 7 years of experience in designing, fabricating, installing, testing ventilation systems, and other ancillary equipment.

Definitions

"Act" refers to the Factories Act, 1948.
"Artificial humidification" means introducing moisture into the air of a room by artificial means, except for unavoidable steam or water vapour escape during manufacturing processes.
"Degrees" (of temperature) refers to the centigrade scale.
"Hygrometer" means an accurate wet and dry bulb hygrometer conforming to prescribed conditions.
"Manager" means the person responsible to the occupier for the working of the factory.

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Description

Quiz on ventilation requirements in factories, including circumstances where standard regulations cannot be met and inspector's role in ensuring air temperature limits.