CHST EXAM REVIEW 2025-2026 QUESTIONS
AND ANSWERS GRADED A+
,Employer responsibilities regarding use of GFCI ANSWER >> 1. delegate
implementation to 'competent person'
2. 120V which operate at 15 to 20 amps, not permanent, equipe with GFCI
3. applies to all cord sets not part of permanent building struction
4.maintain written description of th eprovisions.
OSHA specification which apply to wire rope used in construction rigging ANSWER >>
-no more than three tucks ina wire rope
-wire ropes used for hoisting or lowering be continuous length of rope without knot or
splice except for eye splices at the end
-eyes in wire rope slings or bridles not to be compromised of wire rope clips or knots
-no more than 10% visible broken wires
concerns of 'system safety analysis' ANSWER >> analytical stufy of the interacting
components of a process.
'gas chromatography' ANSWER >> -measure environmental toxins in the air
-separates and isolates components of a mixture of gases
-combine with mass spectometer
employee benefits of JSA ANSWER >> -supervisor meets with employees
-train in productive and safe operations
, -supervisor communicates and apply safety techniques
Footcandles for Gen Constr. concrete placement, excavation, loading platforms,
refueling, field maintenance areas ANSWER >> 5
Footcandles for Indoor warehouses, corridors, hallways, and exit ways ANSWER >> 5
Footcandles for tunnels, shafts and general underground work areas ANSWER >> 5
Footcandles for construction plant and shops, mechanical and electrical equipment
rooms, carpenter shops, rigging lofts and active storerooms ANSWER >> 10
Footcandles for Underground operations involving work at a heading involving drilling,
mucking, and scaling ANSWER >> 10
Footcandles for First-aid, stations, infirmaries, and offices ANSWER >> 30
Permissible Noise Exposure for 8 hour day ANSWER >> 90
Permissible Noise Exposure for 1/4 hour ANSWER >> 115
Permissible Noise Exposure for 4 hours ANSWER >> 95
Permissible Noise Exposure for 2 hours ANSWER >> 100
CFR
10, 16, 23, 29, 40, 42, 49 ANSWER >> 10-Energy
16-Consumer Protechtion
AND ANSWERS GRADED A+
,Employer responsibilities regarding use of GFCI ANSWER >> 1. delegate
implementation to 'competent person'
2. 120V which operate at 15 to 20 amps, not permanent, equipe with GFCI
3. applies to all cord sets not part of permanent building struction
4.maintain written description of th eprovisions.
OSHA specification which apply to wire rope used in construction rigging ANSWER >>
-no more than three tucks ina wire rope
-wire ropes used for hoisting or lowering be continuous length of rope without knot or
splice except for eye splices at the end
-eyes in wire rope slings or bridles not to be compromised of wire rope clips or knots
-no more than 10% visible broken wires
concerns of 'system safety analysis' ANSWER >> analytical stufy of the interacting
components of a process.
'gas chromatography' ANSWER >> -measure environmental toxins in the air
-separates and isolates components of a mixture of gases
-combine with mass spectometer
employee benefits of JSA ANSWER >> -supervisor meets with employees
-train in productive and safe operations
, -supervisor communicates and apply safety techniques
Footcandles for Gen Constr. concrete placement, excavation, loading platforms,
refueling, field maintenance areas ANSWER >> 5
Footcandles for Indoor warehouses, corridors, hallways, and exit ways ANSWER >> 5
Footcandles for tunnels, shafts and general underground work areas ANSWER >> 5
Footcandles for construction plant and shops, mechanical and electrical equipment
rooms, carpenter shops, rigging lofts and active storerooms ANSWER >> 10
Footcandles for Underground operations involving work at a heading involving drilling,
mucking, and scaling ANSWER >> 10
Footcandles for First-aid, stations, infirmaries, and offices ANSWER >> 30
Permissible Noise Exposure for 8 hour day ANSWER >> 90
Permissible Noise Exposure for 1/4 hour ANSWER >> 115
Permissible Noise Exposure for 4 hours ANSWER >> 95
Permissible Noise Exposure for 2 hours ANSWER >> 100
CFR
10, 16, 23, 29, 40, 42, 49 ANSWER >> 10-Energy
16-Consumer Protechtion
