STSC Test Prep Exam With 100% Correct Answers 2024, Exams of Advanced Education

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STSC Test Prep Exam With 100% Correct

Answers 2024

Where employee brings their own PEE, what is the responsibility of the employer? - Correct Answer-Assure the PPE's adequacy. (OSHA pg 127) What's the standard for eye protection? - Correct Answer- ANSI Z89.1-1969 (OSHA pg 127) How to ensure that a rope will hold a load? - Correct Answer- Checkt o see if the rated load capacity for the rope is being exceeded. Stairway handrails should be installed at ____ from the surface of the tread to upper surface of the handrail. - Correct Answer-48" Safety Instruction Signs shall be what color? - Correct Answer- Green upper panel with white letters for principal message. Other shall be black on white background.

What two colors are on a directional sign (not automotive)? - Correct Answer-Black and white. (OSHA pg 159) NFPA 704 Label: Blue signifies __________ and is on located on the ____. - Correct Answer-Health hazard, left. NFPA 704 Label: Red signifies __________ and is on located on the ____. - Correct Answer-Fire hazard, top. NFPA 704 Label: Yellow signifies __________ and is on located on the ____. - Correct Answer-Reactivity, right. NFPA 704 Label: 0 is ____ hazardous and 4 is _____ hazardous _____. - Correct Answer-least, most. NFPA 704 Label: Bottom diamond is reserved for ______. - Correct Answer-Specific hazards (acids, alkali, corrosive, oxidizer, radioactive, Use no water. Yellow ractivity diamond is often referring to reactivity with _____. - Correct Answer-Water.

Fire extinguishers - Type A - Correct Answer-Ordinary Combustibles (Ashes) Fire extinguishers - Type B - Correct Answer-Flammable Liquids (Barrels) Fire extinguishers - Type C - Correct Answer-Electrical Equipment (Current) Fire extinguishers - Type D - Correct Answer-Combustible Metals 2A10BC Fire extinguisher. What does the 2 mean? - Correct Answer-For Type A fires, a 1 would stand for the equivalent of 1 ¼ gallons of water, a 2 would represent 2 ½ gallons, 3 would be 3 ¾ gallons of water, etc. Each number adds 1 ¼ gallons equivalent of water. 2A10BC Fire extinguisher. What does the 10 mean? - Correct Answer-For Type B and Type C fires, the number represents square feet of fire. For example, 2 would be two square feet, 5 is five square feet.

Scaffold top rail height (range). - Correct Answer-38-45 inches. Who is responsible for PPE? - Correct Answer-Employer Minimum depth that a PE is required to design a shoring system. - Correct Answer-20' What should you do with tool O&M manuals? a)Go over them with the workers b)Put them on the jobsite, and have the workers go over them before starting work. - Correct Answer- a) Go over them with the workers. An OSHA compliance officer issues a citation. Who is responsible? (worker, GC, super, foreman) - Correct Answer- General Contractor When monitoring a confined face, which should you check for first? - Correct Answer-Oxygen Deficiency. T/F , before entering a permit-required confined space, the attendant and everyone need to be on lifelines. - Correct Answer-True

Requirements of _____ include attendant remaining in sight of all employees and lifelines for everyone. - Correct Answer- Permit-required confined spaces Operating vibrating equipment can cause what syndrome/disorder? - Correct Answer-Raynaud's Syndrome If an instrument measuring flammable gas reads 30%, the 30% stands for 30% of _________. - Correct Answer-the lower exposure limit What is the state of gas between the LEL (lower explosive limit) and the UEL (upper explosive limit)? - Correct Answer- explosive. What is the state of gas above the upper explosive limit. - Correct Answer-Over-concentrated and not explosive. Regarding LEL and UEL, gas concentration is a percentage of the total volume of the flammable gas with the balance being __________. - Correct Answer-Normal air.

IDLH - Correct Answer-Immediately Dangerous to Life or Health Maximum depth of a trench before a ladder is needed for access and egress. - Correct Answer-4 feet Who can supervise the erection of a 50-foot scaffold? - Correct Answer-Competent person. What rail protection is required for scaffolds located 10 feet or more above lower level scaffolds? - Correct Answer-Handrails, Mid rails, and toe boards. Key factor for implementing a good safety program. - Correct Answer-Getting foremen and supervisors involved. Minimum distance between ladders used for access and egress into an excavation. - Correct Answer-25 feet. Handrails should be capable of withstanding ____ lbs of force.

• Correct Answer-200 lbs.

Minimum width of access to an exit in new construction per NFPA. - Correct Answer-36 inches Primary reason for storing acetylene cylinders upright. - Correct Answer-Prevent liquid acetone from escaping and releasing acetylene. Boom indicator indicates _______. - Correct Answer-Boom angle relative to horizontal. What color is used to mark potential hazards? - Correct Answer-Yellow. Which would be most likely to produce severe injuries or a high probability of accidents? (routine tasks or unusual, non- routine tasks). - Correct Answer-Unusual non-routine tasks. Acetylene reacts violently with ______. - Correct Answer- Fluorine No more than ___ gal of flammable or combustible liquids shall be stored in a room outside of an approved storage cabinet. - Correct Answer-25 gallons.

OSHA recommends __ foot candles for general construction work. - Correct Answer-5 fc What's most important in developing a safety training program? (objectives, methods, qualification, or material)? - Correct Answer-Objectives The firewall separating oxygen and fuel gasses should be ___ feet high. - Correct Answer-5 feet Cost of lost days is a ______ cost. - Correct Answer-Direct cost Lost production is a______ cost. - Correct Answer-Indirect Damage by welders flash is caused by ______ light. - Correct Answer-Ultraviolet light. CO is particularly dangerous because (keeps blood cells from carrying oxygen or it makes you sleepy). - Correct Answer- keeps blood cells from carrying oxygen

Maximum allowable continuous noise level is ____. - Correct Answer-90 dBA Maximum allowable peak noise level is ____. - Correct Answer-140 dB OSHA requires employers to establish a hearing conservation program. It should include_____, _____, and ____. - Correct Answer-Area noise level survey, audiometric testing, PPE. Heavy sweating, racing pulse, weakness, nausea, and headache are symptoms of what heat-related disorder. - Correct Answer-Heat Exhaustion. A Class IA flammable liquid has a flash point ______ and a boiling point ________. - Correct Answer-Flash point below 73'F. Boiling point below 100'F. Class IB flammable liquids have a flash point ______ and a boiling point _______. - Correct Answer-Flash point below 73 °F and a boiling point greater than or equal to 100 °F

Class IC flammable liquids have a flash point ______ and _______. - Correct Answer-Flash point greater than or equal to 73 °F and below 100 °F Class II combustible liquids have a flash point ______ and _______. - Correct Answer-Flash point greater than or equal to 100 °F and below 140 °F Class IIIA combustible liquids have a flash point _____ and _______. - Correct Answer-Flash point greater than or equal to 140 °F and below 200 ° Class IIIB combustible liquids have a flash point _______. - Correct Answer-Flash point greater than or equal to 200 °F Name the most important practice when storing chemicals (ventilation, fire protection, grounding, segregation). - Correct Answer-Segregation Flame arresters work because they_____________. - Correct Answer-Dissipate the external heat below the self-ignition point.

What type of fire extinguisher is used for an acetone fire? - Correct Answer-Type B. Label is Red Square with B in center. Who is in charge of the emergency plan? (supervisor or superintendent). - Correct Answer-Supervisor. What is the major exposure hazard to chemical components? (Inhalation, Absorbtion, Ingestion). - Correct Answer- Inhalation Place it the proper order for controlling hazards: Work practice controls, Engineering controls, and PPE. - Correct Answer-Engineering controls, Work Practice Controls, and PPE Ramps used for access to the site must be a minimum of ___ inches wide. - Correct Answer-18 inches wide. That's 2 planks wide, that must be cleated together. Removing sharp edges, reporting and fixing loose floor boards, and covering holes in the floor are examples of __________ controls. - Correct Answer-engineering controls.

What three things are needed to work on a scaffold system? - Correct Answer-Be trained in that system. Scaffold inspected daily. Have permission to use it. T/F - Do not ride scaffold when moving. - Correct Answer-T T/F - You can use a ladder on a rolling scaffold to extend reach. - Correct Answer-F What is true of tieing off while on a hanging scaffold. - Correct Answer-Must have an independent lifeline. Requirements for railing at scaffolding - Correct Answer-Top and mid-rail required on all open sides. Toe-bards when people are required to work or pass under scaffold. Scaffold capacities typically range from ___ to ___ lbs per square foot. - Correct Answer-25 to 75 lbs Height to base ratio for rolling scaffolds must usually be __ to __. - Correct Answer-4 to 1. Differs in some states.

Ladder jack scaffolds shall not be used more than __ feet above the ground. - Correct Answer-20 feet. How frequently shall scaffold systems be inspected? - Correct Answer-Daily. _____ are the leading cause of injuries and fatalities in the construction industry - Correct Answer-Falls - account for 1/ of fatalities. Ladders must be inspected ______ and inspection must be documented. - Correct Answer-annually by a competent person. Should also be inspected prior to each use. T/F All self-propelled lift equipment requires worker to be tied off to an anchorage point within the lift. - Correct Answer-True Maintain __ ft of clearance from overhead powerlines (up to 50 kV only). - Correct Answer-10 feet over 50 to 200 kV requires what minimum clearance from power lines (crane requirements) - Correct Answer-15 feet. Over 750 to 1000 kV is 45 feet.

Rule of thumb: Outrigger pads should be how big compared to the outrigger float? - Correct Answer-pads should be 3 times the area of the outrigger float. Common boom failure - sideloading. What is it and what can cause it? - Correct Answer-When one side of the boom is taking a majority of the load. Happens when crane is out of plumb, when load is uneven, when swinging loads, or from wind. T/F Crawler cranes need to be accompanied by a spotter while driving. - Correct Answer-True. Must be accompanied. What is the correct way to protect someone from being struck by crane counterweight? - Correct Answer-Worker safety zone must be flagged off to protect workers. ______ must be inspected on tower cranes before they can be used. - Correct Answer-Limit switches (similar to anti-two block devices). Tested at 110% capacity.

Concrete base of tower crane must be designed by ____________. - Correct Answer-A professional engineer. ____ is the name of the piece that travels along the main jib of a tower crane and carries the hook block. - Correct Answer- The trolley. A critical pick is one exceeding ___% of the load chart value. - Correct Answer-85% On a crane chart, above the heavy line, values represent ______ failure. Below they represent ______ failure. - Correct Answer-Structural. Stability. Crane operator certification lasts for ____ years - Correct Answer-5 years. Access to energized equipment operating at ___ volts or more shall be guarded or restricted. - Correct Answer-50 volts

Grounding rods shall be driven ____ feet into the earth - Correct Answer-6 to 8 feet Some modern tools don't have grounds, but protect worker with _____________. - Correct Answer-Double insulation. Maintain a minimum clearance of ___ feet from power lines - Correct Answer-10 feet. Of particular concern is risk of arcing. Controlled access zones must be no closer than ____from the edge and run parallel with the edge. - Correct Answer-6 feet 4 Reasons a Permit is required for a confined space: - Correct Answer-1. hazardous atmosphere. 2. Contains materials that could engulf the worker (sand,water). 3. Shape in a way that could trap the worker. 4. Has other hazards (heat, cold, machinery, etc.).