EMI in low-voltage circuits is often the result of __ using twisted conductors grounding the sheath sharing pathways with power circuits using sheathed power cables
What type of punch has a tapered shaft and point on the end? Brass punch Center punch Starter punch Pin punch
What do modern hydronic systems use to circulate the hot water? Select one: A. Pumps B. Gravity C. Fans D. Convection
What is the purpose of the expansion tank? Select one: A. To provide pressure for the water system B. To reduce the water temperature by expansion C. To allow room for extra water D. To allow for water volume changes due to temperature change
What materials are most commonly used for hydronic piping? Select one: A. PVC and CPVC B. CPVC and polybutylene C. Copper and galvanized iron D. Copper and cross-linked polyethylene
Which of the following can be done to prevent ground glass joints from sticking? A Lubricate the ends before joining B Use a Teflon sleeve at the joints C Both of the above D None of the above
What type of fire extinguisher should be used with electrical fires? A Type A B Type B C Type C D Any of the above
What invention made the development of the automobile possible? internal combustion engine steam engine electric motor rechargeable 12 volt battery
Which is something you should report as a possible clutch defect? A. A hard time getting into gear B. Vibration in the gas pedal C. Slow response to braking D. Oil leaks at wheel hubs
What identification information must be provided on a synthetic web slings? Hitch ratings Safety factors Date last certified Manufacturer's phone number
Which process melts an ore to separate useful metals from the rest of the elements in the ore? smelting mining prospecting alloys
Which type of mine may be used to remove coal from a coal seam deep underground? open pit mine strip mine subsurface mine underwater mine
(1) How do self-driving cars travel safely on the streets? Sensors and cameras help self-driving cars $\square $ and $\square $ on the road.
An all wheel drive vehicle increases traction and allows the driver to better manage the vehicle in inclement weather. True False
Which is a likely reason a jacket might contain interfacing? to help it keep its shape to avoid the need for dry cleaning to make the garment easier to construct to absorb odors
The biggest maintenance problem in pneumatic systems is __ Rusted components Noisy components Overheating Air leakage
Never stand directly behind the saw blade. True False
Q7: On right side pistons the arrow on the top of the piston and the dimple on the rod __ and on left side pistons the arrow on the top of the piston and the dimple on the rod __ A. are on opposite sides / are on the same side B. face the outside of the engine/ face the inside of the engine C. face the same direction/ are on opposite sides D. face the inside of the engine/ face the outside of the engine
Technician A says that if the vehicle battery is below 12.4 volts when testing with a voltmeter it should be charged with a smart battery charger . Technician B says that correct tire readings ; are listed on a placard on the driver's side door frame. Who is correct? A) Technician A only B) Technician B only C) Both Technician A and B D) Neither Technician A nor B
The recommended tire air pressure can typically be found: In the owner's manual On a placard typically located on the driver's doorjamb On the side of the tire Both A and B
