Why should some refrigerants NOT be recovered? Select one: A. Type III refrigerant cannot be reused. B. Older machines may hold toxic chemicals. C. Many machines hold too little refrigerant to recover. D. Older refrigerants have mostly dissipated already.
05. How many times must glass items be wrapped in Hexcel to prevent it from being broken? one three two four
Which devices minimize scatter radiation from reaching the image receptor (IR)? Select two. Select all that apply Grid IR Lead shield Bucky tray Radiolucent sponge
In vertical raceways, at what size must copper conductors be supported twice as often as aluminum? 1. 18 AWG through 8 AWG 2. 6AWG through 1/0 AWG 3. 2/0AWG through 4/00 2/0 AWG through 4/0 AWG 4. 4/0AWG through 350 kcmil
A series fault is one which occurs: 1. within the same conductor 2. hot leg to ground 3. phase leg to phase leg 4. hot leg and neutral
A needle valve is often used in pneumatic circuits __ To control actuator speed To reduce atmospheric pressure To control the position of the vane To measure air flow
Applications for the __ speed controls are with cylinders where loads can change periodically. Meter-in flow Meter-out flow Exhaust port Pressure port
A flow control valve is a combination of a __ Flow meter and a check valve DCV and a check valve Needle valve and a check valve Needle valve and a restrictor valve
Which type of conduit body does not provide a change in direction but may be used as a pulling point in a conduit run that has bends totaling more than 360^circ Type LL Type LB Type SLB Type C
The function of the voltage regulator is to control the output voltage by controlling the amount of excitation current supplied to the field or rotor. True False
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.
