CWEA MAINTENANCE TECHNOLOGIST 1 PRACTICE QUESTIONS|UPDATED&VERIFIED|1005 SOLVED|GUARANTEED SUCCESS

Which process is most commonly used for small pipe maintenance welding? D. Oxyacetylene gas welding What is the proper definition of an engine? B. It is machine designed to convert energy into useful mechanical motion What is wet stacking and how can it be prevented? C.Wet stacking is a condition in diesel engines in which unburned fuel passes on into the exhaust system.[1] The word "stacking" comes from the term "stack" for exhaust pipe or chimney stack. The oily exhaust pipe is therefore a "wet stack". To check a flywheel face runout, where should the dial indicator be positioned? B. The base of the bell housing and the pointer on the flywheel face If a 38-tooth gear running at 360 rpm is driving another gear at 144 rpm, what is the number of teeth on the driven gear? B. 95 Which of the following is required for a sealed ball bearing? C. It does not need to be lubricated under normal use A DAFT is an acronym meaning? A. Dissolved Air Flotation Thickener What is the governing agency that permits odor control systems? D. AQMD At what pressure rating would you use a blower instead of a fan? B. 7psi Which of the following valves is unsuitable for high-pressure flow? C. A needle valve A sodium hypochlorite tank's full working capacity is 23,000 gallons. Its current level is at 1,200 gallons. How many gallons does the delivery driver need to add to bring it to 70% capacity? A. 14,900 gal What is the result if 6/8" is converted to decimal form? A. .75 What is the conversion of 100 Celsius to Fahrenheit? A. 212 If 17.32v are applied across a resistance of 50 ohms, how much power is expanded in the resistor? C. 6.0 watts A standard steel plate is 4' wide, 8' long, 1" thick. If steel weighs 490 lbs/ft3, what is the total weight of this plate? A. 1,306.6lbs What is the volume in cubic feet of carbon media that is 6' thick in a clarifier that has a 50' diameter and 20' deep? Round answer to the nearest cubic foot. C. 11,781 ft3 A 150-Watt, 120-volt lamp burns constantly for 8 hours at a rated voltage. What is the energy used in watts/hour? C. 1200 watts/hour Which of the following is 12/16 equal to? A. 3/4 The property of an electrical circuit restricts the flow of current and: C. resistance Which of the following can burn the insulation on the supply connections at the motor starter? C. the connections are loose or have poor contacts Where do you start troubleshooting when an electrical motor fails to operate after observing a mechanical failure? C. at the power source What does NEC stand for? A. National Electrical Code What is a pipe union typically used for? A. it is used to connect pipes Which of the following circuits has more than one path for the current to flow? B. Parallel Circuit Overloading of an electrical circuit may be caused by which of the following? C. Connecting loads that draw too much current What kind of current is stored in a 9-volt battery? B. Direct current What does GFI stand for? C. Ground fault interrupter What does EMT stand for? A. Electrical Metal Tubing What device would be used to measure AC current flow in a large diameter conductor? B. A clamp-on type ammeter What is the purpose of electrical interlock switches on panel doors? A. To interrupt local power for personnel protection Which of the following actions should be taken before working on controls that may disrupt plant operations? C. Have an operator present (this is not an action) What is the purpose of installing toe boards around the base where guard rails are placed along elevated work areas? A. As protection from tools or objects that may roll off What action is necessary before restarting rotating equipment that has recently undergone repair? B. All removed guards must be installed What is the main purpose of a confined space safety permit? D. it ensures the use of safety precautions and safe procedures The acronym "LOTO" is used to identify: C. Lock Out/Tag Out What does the acronym SDS represent ? D. Safety Data Sheet Which problem will NOT occur when a person works in a very hot area for a prolonged period of time? D. Hypothermia