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
Plastic components should be wiped with Motorcraft Metal Surface Prep Wipes prior to applying the RTV on the plastic component. A) TRUE B) FALSE
Select the correct answer and then click the Next button. Which coating classification BEST describes the presence of defects, but no serious corrosion? a. Good b. Fair c. Poor d. Bare
Select the correct answer and then click the Next button. What can interrupt cathodic protection and mask corrosion? a. Humidity b. Dissimilar metals c. Disbondment d. Static electricity
Select the correct answer and then click the Next button. What often causes pockets with corrosion grooves? a. Thin spots b. Wrinkled tape c. Holidays d. Air pockets
Select the correct answer and then click the Next button. What is the cause of premature pipeline corrosion? a. Keeping pipe aboveground b. Using cast iron pipe c. Coating failure d. Low product flow
Which type of slack adjuster is offered by most manufacturers because it resists over-adjustment? Select one: a. Stroke-sensing ASAs b. Clearance-sensing ASAs c. Manual slack adjusters d. Six-inch slack adjusters
Self-powered test lights are like regular test lights except that they contain a __ battery. Select one: a. 0.3-volt b. 24-volt C. . $12-volt$ d. 1.5-volt
What distinguishes a BIMODAL PV System from a UTILITY INTER-ACTIVE PV System? Bimodal has batteries Both are grid connected. Utility Interactive is cheaper
3. The engine in your car is sometimes called: A. A 4-stroke engine B. A 2-stroke engine C. An external combustion engine D. None of the answers
QUESTION: Which statement is true about the effects of ambient temperature on solid state devices? POSSIBLE ANSWERS: A solid state device is more likely to withstand excessive cold than excessive heat. The typical failure rate for a solid state device is $35^{\circ }C(95^{\circ }F)$ The failure rate for a solid state device doubles for every $10^{\circ }C$ that the temperature rises.
