AHERA Contractor Supervisor Refresher – Contractor Supervisor Quiz

Normally, the air sampling professional (consultant), who conducts final clearance sampling, works for:

If a negative pressure enclosure is 25 feet by 100 feet by 10 feet high, how many negative air machines are needed that have a measured capacity of 2000 CFM?

In California, Asbestos-Containing Construction Material is defined as containing:

What certification meets the requirements under EPA for the “Trained On-site Representative” and under OSHA, the “Competent Person”?

The last item of apparel the worker removes when decontaminating is:

Personal air monitoring is normally analyzed by:

What federal regulation has the effect of requiring asbestos removal from buildings?

The TWA fiber concentration in a work area is 4.5 f/cc. What respirator should be worn at a minimum to maintain exposure below the PEL?

When conducting asbestos removal, a “regulated area” is required:

The OSHA TWA PEL for asbestos is:

An abatement work area is 40 feet by 100 feet by 14 feet high. Your negative air machine(s) will have to exhaust what quantity of air per hour in ft3, at a minimum?

OSHA classifies all work relating to ACM into 4 “classes” of work. Removal of ACM duct insulation is considered:

Transmission Electron Microscopy is mandated for analysis of what type of samples?

In California, a supervisor who oversees asbestos related work must be certified by who?

Which type of respirator filter is minimally required for use in areas of asbestos exposure?

The OSHA protection factor for the powered air purifying respirator (PAPR) is:

The minimum pressure differential required to be maintained in a negative pressure enclosure is:

Which of the following is an OSHA requirement on all asbestos jobs?

Before an asbestos abatement employee is assigned a respirator, he/she must have a:

The protection factor formula is:

Using the data below, calculate the TWA value

Sample A-01 = 0.004 f/cc (sampled for 90 min.)
Sample A-02 = 0.08 f/cc (sampled for 30 min.)
Sample A-03 = 0.0079 f/cc (sampled for 350 min.)

C = Concentration;  T = Time

Federal regulations require leak tight disposal containers. At a minimum, this means:

The negative air machine should be shut down:

The federal regulation which specifies worker protection procedures at the abatement site is:

The bonding normally requested for an abatement contractor is a Payment and Performance Bond. The purpose of the bond is to: