Safety and Workplace Practices in Construction, Exams of Nursing

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HVAC FINAL EXAM 2024 WITH 100% ACCURATE SOLUTIONS The four leading causes of death in the construction industry include electrical incidents,caught in or caught-between incidents, and___ - correct answer✔✔ Falls A sign that has a white background with a green panel with white lettering is a: - correct answer✔✔ Safety instruction sign To properly dispose of oily rags, they must be - correct answer✔✔ stored in a container designed for the purpose Keeping your work area clean and free of scraps or spills is referred to as: - correct answer✔✔ housekeeping Hazcom classifies all paint, concrete, and wood dust as? - correct answer✔✔ Hazardous Materials Under HazCom, if you spot a hazard on your job site you must ______. - correct answer✔✔ Report it to your supervisor Which of the following must be reported to your supervisor? - correct answer✔✔ All injuries, incidents, and accidents Metal ladders should NOT be used near: - correct answer✔✔ electrical equipment If you lean a straight ladder against the top of the 16 foot wall, the base of the ladder should be ______ feet from the base of the wall. - correct answer✔✔ 4 feet The two basic types of scaffolds are - correct answer✔✔ Self-supporting and suspended scaffolds Interlocking stacked material is done by - correct answer✔✔ Placing the objects at right angles To reduce the risk of workers being hurt or killed by falling materials, the maximum height-to-base ratio of a stack of materials should be - correct answer✔✔ 4:1 The most common cause of death for equipment operators is - correct answer✔✔ equipment rollover Most cave-ins occur in trenches 5 to ______ feet deep and happen suddenly with little or no warning. - correct answer✔✔ 15 feet In every trench over 4 feet deep, there must be an exit every - correct answer✔✔ 25 feet The minimum distance that a spoil pile must be located from the edge of an excavation is - correct answer✔✔ 2 feet The type of trench protection designed to prevent trench wall cave ins is - correct answer✔✔ Shoring Protective guards are provided on power tools and machines in order to keep - correct answer✔✔ Workers from being caught in rotating or moving parts The minimum safe working distance from exposed electrical conductors - correct answer✔✔ Depending on the voltage Work that is performed near a hazard but not in direct contact with it is called - correct answer✔✔ Proximity work Circuit breakers and disconnect switches are examples of - correct answer✔✔ Energy-isolating devices Which of the following provide the best eye protection? - correct answer✔✔ safety goggles A spade is used to _________. - correct answer✔✔ Move large amounts of soil or dig trenches with straight sides Chalk falls are used to - correct answer✔✔ Safely move heavy loads vertically A hand-screw clamp has ____ - correct answer✔✔ Wooden jaws Pneumatic tools get their power from - correct answer✔✔ air pressure The most common use of the power drill is to___ - correct answer✔✔ Make holes in wood, metal, and plastic. A masonry bit is able to drill into concrete and similar material because it has a: - correct answer✔✔ carbide tip An example of an electric power drill that is designed to be used in tight spaces is a(n) - correct answer✔✔ right-angle drill The electromagnetic drill is a - correct answer✔✔ portable drill used on thick metal Hammer drills are designed to drill into - correct answer✔✔ Concrete, brick, and tile. A pneumatic impact wrench requires the use of: - correct answer✔✔ impact sockets that are designed for the applicable tool When cutting with a circular saw, grip the safe handles__ - correct answer✔✔ Firmly with two hands The high speed setting on a reciprocating saw is used for - correct answer✔✔ sawing wood and other soft materials When using a saber saw, avoid vibration by - correct answer✔✔ using a clamp or vise to hold the work Before using a reciprocating saw to cut through a wall, always ____ - correct answer✔✔ Find out what is on the other side Use only a band saw that has a: - correct answer✔✔ Stop A sliding compound miter saw has a rail that allows the blade to slide forward and backward, which enables the saw to: - correct answer✔✔ Cut wider material than a standard miter saw. The blade of an abrasive cutoff saw spins at such a high speed that - correct answer✔✔ The resulting friction is hot enough to burn through the materials. The end grinder is used to - correct answer✔✔ Smooth the inside of materials, such as pipe. A detail grinder smoothes and polishes intricate metallic work by using attachments called: - correct answer✔✔ points Powder actuated fastening systems are used to - correct answer✔✔ anchor static loads to steel beams Before you begin setting up a pavement breaker for use, make sure that the air pressure is____. - correct answer✔✔ Shut off at the main air outlet Porta-Power cylinders are rated by how much weight they can lift and by: - correct answer✔✔ the distance they can move the weight Hydraulic jacks are used when the application calls for - correct answer✔✔ extreme force to be applied Identification tags for slings must include the___. - correct answer✔✔ Manufacturers name or trademark The type of wire rope core that is susceptible to heat damage at relatively low temperature is the ___. - correct answer✔✔ Fiber core Synthetic slings must be inspected ___. - correct answer✔✔ Before every use An alloy steel chain sling must be removed from service if there is evidence that: - correct answer✔✔ Replacement links have been used to repair the chain. A piece of rigging hardware used to couple the end of a wire rope to eye fittings, hooks or other connections is a - correct answer✔✔ shackle A lifting clamp is most likely to be used to move loads such as: - correct answer✔✔ steel plates Chain hoists are able to lift heavy loads by utilizing a: - correct answer✔✔ gear system Before attempting to lift a load with a chain hoist, make sure that the - correct answer✔✔ Load is properly balanced A hitch configuration that allows slings to be connected to the same load without using a spreader beam is a: - correct answer✔✔ Bridle hitch To make the emergency stop signal that is used by riggers, extend both arms ___. - correct answer✔✔ Horizontally with palms down and quickly move both arms back and forth. Good communication on the job site____. - correct answer✔✔ Affects safety,schedules, and budgets. Nonverbal communication is best for communicating ___. - correct answer✔✔ feelings and attitudes Which of the following are examples of positive nonverbal communication? - correct answer✔✔ Sitting up straight, keeping a clean workspace, and looking at people who are talking to you Which of the following is an example of positive verbal communication on the job? - correct answer✔✔ Giving and taking instructions To progress steadily through your career, you will need to develop and learn how to use___. - correct answer✔✔ leadership skills The three categories of leadership are hands off, democratic, and ___. - correct answer✔✔ autocratic In a common household forced air furnace, heat is transferred from the ___. - correct answer✔✔ heat exchangers to the air Water is often used in heating systems as a ___. - correct answer✔✔ heat exchange medium Ventilation is concerned with - correct answer✔✔ THE INTRODUCTION OF FRESH AIR TO CONTROL INDOOR AIR QUALITY The growth of bacteria and other harmful organisms can be reduced or eliminated by - correct answer✔✔ Ultraviolet light The term mechanical refrigeration cycle refers to ___. - correct answer✔✔ The process by which circulation refrigerant absorbs heat and moves it. A device that is able to extract heat from the air through the use of the refrigeration cycle is a(n) - correct answer✔✔ Heat pump The expansion device in the mechanical refrigeration cycle___. - correct answer✔✔ LOWERS THE REFRIGERANT PRESSURE ENTERING THE EVAPORATOR In a refrigeration system, heat is transferred from the indoor air to the refrigerant at the___. - correct answer✔✔ Evaporator A leak in the vent pipe of a gas furnace is a concern because it can______ - correct answer✔✔ REALESE CARBON MONOXIDE Why if these companies is likely to install HVACR equipment? - correct answer✔✔ Mechanical contractor Releasing CFC and HCFC refrigerants or certain substitutes to the atmosphere is______ - correct answer✔✔ prohibited by law In order to be resold on the open market, a refrigerant must have been - correct answer✔✔ reclaimed The primary purpose of a building code is to regulate the quality of all mechanical installations on a commercial site - correct answer✔✔ False Which of the following is a function performed by a distributor? - correct answer✔✔ SALES OF EQUIPMENT AND PARTS one meter is equal to - correct answer✔✔ 3.28 feet A room has a length of 3.568 meters and a width of 2.438 meters. The area of this room in square feet is___. - correct answer✔✔ 93.64 ft^2 A duct has inside dimensions if 16x12 the area is equal to - correct answer✔✔ 1.33 ft^2 The value of pi to 2 decimal places is - correct answer✔✔ 3.45 How many liters of liquid can a 55 gallon drum hold - correct answer✔✔ 208 A crate containing a boiler is marked as weighing 175 pounds. What is its weight in kilograms? - correct answer✔✔ 79.38 Find the absolute pressure if a gauge reads 164 psig. - correct answer✔✔ 178.7 Temperature 0 degrees Celsius is equal to - correct answer✔✔ 32 degrees Fahrenheit A temperature of 68oF is equal to - correct answer✔✔ 20 degrees Celsius The square root of 12,500 is equal to 111.803 - correct answer✔✔ 111.803 6^2 - correct answer✔✔ 36 The distance from the center of a circle to any point on the curved line is the - correct answer✔✔ Radius A triangle in which all sides are unequal - correct answer✔✔ Scalene 5 lb of water heated to raise the temperature 2 degrees requires - correct answer✔✔ 10 btus Sensible heat is heat that - correct answer✔✔ can be measured with a thermometer Superheat can be gained - correct answer✔✔ After all liquid is changed to vapor When the temperature of a liquid refrigerant is below its condensing temperature, the liquid is - correct answer✔✔ Subcooled