Given specific conditions such as location, quantity,etC. water hoses can be used as a substitute for a 2A fire extinguisher. A. True B. False
Why are fuel leaks a problem? They could cause a fire or cause you to breathe in toxic gas. They could lead to a collision. They could drain your battery. They could cause your car to overheat.
The __ is used most frequently for amperage checks. a. hot-wire ammeter b. integrated ammeter c. clamp-on ammeter d. alternating ammeter
-Which of the following is TRUE with regard to circuit breaker interrupting capacity ratings? Select one: a. NEMA tests are certified by unbiased reviewers. b. UL tests now include NEMA ratings. c. The interrupting capacity of a circuit breaker is the same for all voltage levels. d. UL tests are self-certification.
Material specifications give the exact grade or substance to be used in a weldment. True False
What 2 terminals on the 8145-20 time clock energize the evaporator fans? A) 18N B) 28N C) . N&N D) 48N E) 38N
A transducer with an array of rectangular elements arranged in a straight line is called: Oscillating mechanical transducer Convex sequenced array transducer Annular array transducer Sequential linear array transducer
What is the requirement for a single transducer to offer varying frequencies? Narrow bandwidth Wide bandwidth Mechanical steering Multiple rows of piezoelectric element in the elevational plane
The main benefit of using a 1.5D or multi-row array transducer is: Improved Temporal resolution Increased frequency Smaller footprint Narrow slice thickness over a large part of the scanned volume
Imaging transducers have: Narrow bandwidth Low-quality factor High quality of light High quality factor
Question 2/20 When in use, how do you move the articulated ladder? Select the best answer: Keeping 3 points of contact, have someone move the ladder for you Disengage the locks, descend and then re-locate Keeping 3 points of contact, hop the ladder into place First descend, then re-locate
When power and data are brought to one enclosure, a means of dividing the wiring is required. Gang box partitions are available for boxes of what depth? (Select all that apply.) a. . $1\frac {5}{8}$ b. $2\frac {1}{4}''$ C. . $2\frac {1}{2}''$ d. . $23/8$
A surface-mounted fluorescent luminaire (light fixture) mounted in a clothes closet must maintain a clearance of at least __ inches to the storage area. Select one: a. 6 b. 18 c. 24 d. 0 e. 12
Which of these is least likely a step in replacing a failed compressor? C A) Replacing the condenser B) Inspecting the muffler C) Disconnecting and sealing the hoses D) Flushing the system
12. A transformer can be checked for shorted turns using a __ a) VOM set to measure resistance b) VOM set to measure current c) TTR tester d) megger
A GFCI opens a circuit when it detects an improperly grounded receptacle different currents in the conductors of a circuit insulation failure in a conductor large amounts of current in a conductor
Questions for Further Investigation How do a hand generated flashlight and power plant compare? -When might you use the information you learned from this station? What new questions do you have? Brainstorm new investigation questions for this station.
When the saw blade starts to bind you should Stop the saw and restart the cut Hold the saw tighter and finish the cut Lift the saw out of the cut Push harder
What are some advantages of making electronic components like transistors increasingly smaller?
A __ is the hub of a structured wiring system and is usually located in the basement or garage. It is sometimes called a "distribution center." sub-panel field enclosure service center hub center
