100) What is a Work Permit?
A written document authorizing employees to carryout a work in a designated area on an equipment specifying the hazards, safety instructions and PPE required for work.
101)What is a Confined Space?
A vessel, column, tank, pit, trench which has limited entry and access and one can not stay inside for long time due to following factors. Lack of fresh air or Oxygen, Heat, Fumes, Toxicity of storage Contents, Noise any other annoyance, causing disturbance in normal work.
102) What is (a) THLV (b) LEL (c) UEL?
Threshold Limit Value, Lower Explosive Limit, Upper Explosive Limit
103) What is ASPHYXIANTS?
Chemical gases which can cause suffocation by restricting the uptake of oxygen or by respiratory paralysis or by diluting / displacing oxygen below the levels needed by human body.
104) What is a SCBA?
Self Contained Breathing Apparatus, use in confined spaces or where oxygen deficiency exists or where concentration of toxics gases is harmful to humans.
105) What is toxic Material?
A material or substance which adversely effects body or organs.
106) What are Flammable and Combustible Liquids?
Liquids that give off enough vapors to form an ignitable mixture with air and produce a flame when a source of ignition is present.
107) What is MSDS? Material Safety Data Sheet
108) What is a Risk Assessment/Hazard Identification Plan?
Identifying hazards and risk involve in a specific job and control measures required to eliminate them or bring them to minimum acceptable limit for the job to be done in safe manner
SCAFFOLD Before erecting scaffolds assess the work area for existing and for potential future hazards which may impact on the work.
109) What are basic components of scaffolds?
a) Base Plate b) Sill Boards c) Screw Jack d) Couplers e) Vertical tubes or Bearer also called LEDGERS f) Horizontal tubes or Ledgers also called STANDARDS g) Transoms connected across the width h) Hand rails mid rails i) Toe Boards j) Platforms k) Ladder l) Diagonal Bracings for stability
RIGGING
110) What are different types of slings used for lifting?
a) Wire rope slings
b) Synthetic/Nylon Webbings
c) Chain Slings
111) When a sling is considered unsafe for use?
1) 10 wire broken in one rope lay randomly distributed 2) 05 wires broken in one strand in one lay 3) 1/3rd of original diameter is scrapping or worn 4) Kink crushing, bird caging, or other damage or distortion of wire rope structure 5) Evidence of heat damage 6) End attachments that are cracked worn or damaged 7) Hooks open more than 15% of normal throat 8) Twisted more than 10 degrees from the plane
112) What safety measures are required for SAFE CRANE OPERATION
1) Crane is to be positioned on level ground
2) Outriggers fully extended
3) Mats to be used for stability
4) Crane radius of swing should be barricaded and no one to cross under the suspended load
5) Ensure clear of obstructions
6) Load chart available in the cabin
7) Qualified Operator and rigger to rig the loads
8) Only one rigger is authorized to signal the operator
9) Do not lift the load beyond the rated capacity of the crane
10) Wind speed not more than 20miles/hr or 32km/hr
11) Anti two block system working
12) Load monitoring indicator operational
13) Telescopic boom free moment
14) Operators cabin have clear view and not obstructed
PORTABLE ELECTRICAL TOOLS
114) Why this should be used with electric tools?
To protect the workers from shock in case of current leakage
115) What is the sign of a potable electric tool having double insulated?
(Double square)
116) Why tools having broken insulation must not be used?
To avoid possible electric shock
117) What is meager test?
The insulation break down test is known as meager test
118) Why meager test is necessary for electric tools?
A tool having subjected to harsh use at site needs to be tested for insulation break down to avoid possible electric shock.
119) Why dead man switch should be used on electric tools?
To cut off the power supply to the tool in emergency
120) Why Safety Training is required?
To make the employees familiar with the hazards associated with their work safety orientation and some other training is required, also special craft training is required before start of work, safety assessment risk assessment for potential hazards is essential which covers the general hazards and specific hazards associated to the work being undertaken and the control measures applied to eliminate or minimize the potential of harm to the employees, therefore emphasis of accidental loss of resources (Men and Materials) to reduce the direct and indirect costs and loss time delays due to interruptions providing safe and friendly environment for timely completion of projects therefore imparting plays an important role in loss control and it is an idea sound business to have safety culture prevailing on the construction sites.
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