All the technology listed below was needed to send astronauts to the moon and return them safely to Earth. Which technology was already used on Earth for purposes other than sending astronauts to the moon? Spacesuits protected astronauts from radiation and extreme temperatures on the moon's surface. Radio wave communication allowed the astronauts on the moon to talk to people on Earth. The space capsule protected the astronauts from the extreme conditions in the vacuum of space. The lunar lander allowed astronauts to land on the moon and take off back into space to return to Earth.
All of the following are true about high -intensity discharge (HID)headlights EXCEPT: a. They use tungsten electrodes. b. They give off a brighter and bluer light. c. They cost less than other headlights. d. They last two to four times as long as a halogen bulb.
Wearables that can track eye movements can... help record a video from the point of view of the goalie. record your speed. help determine where to focus during a shot on goal. allow you to see more clearly.
__ causes the force to be multiplied I and can exceed the rated capacity of the sling or chain even though the load weight is a fraction of the capacity. Failing to install proper guardrails Positioning a signal person out of view of the crane operator Jerking the load rather than slowly picking it up Setting up a crane on soft or uneven ground
__ must be placed on timbers or 'cribbed so as to spread the weight of the crane and I the load over a large enough I area. Outriggers Loads Slings Booms
Cranes , ladders , scaffolds , backhoes , and paint rollers all present which type of electrical hazard at a worksite? Malfunctioning power tool Contact with overhead power lines Defective cords or wires Uncontrolled overcurrent
3. Excessive negative camber on a vehicle's left front wheel can cause which of the following?
2. List the main components of ignition system.
The rotor turns because of: Select one: A. The induced cyclonic effects created by the proximity of the rotor to the stator. B. The directional spin of the electrons in the rotor winding. C. The repulsion and attraction between the poles of the rotor and stator. D. The directional spin of the electrons in the stator windings.
All Hyundai HEV/PHEV vehicles require the same procedure to disable the high voltage system: True False
Water supply fittings are available for all of the following except A) copper. B) PEX. C) steel. D) CPVC.
A __ makes fast., accurate cuts in a wide variety of materials, including plastic pipes. A) motorized drain auger B) right-angle drill C) power miter saw D) MAPP torch
Which supply pipe material is inexpensive and flexible enough to make gentle bends around corners? A) PVC B) PEX C) Copper D) CPVC
Push fittings are available as all of the following except A) coupling tees. B) wye fittings. C) elbow fittings. D) shutoff valves.
The mounting nut on the toilet handle has __ threads. A) reversed B) common C)extra-large D) standard
Quizzing Mode:Combination Vehicles 2 Question (11/50) What is the emergency air line? Air lines that control the emergency brakes on combination vehicles Air lines connecting the parking brake to the trailer brakes Air lines that control the emergency brakes of the tractor
A three-valve system that's sometimes installed on the back of water softeners allows the house water to __ the softener if needed. A) enter B) exit C) bypass D) neutralize
Typically, a washing machine uses a vertical __ drain. A) tee B) vent stack C) elbow D) standpipe
When plumbing a PEX water-supply system, which of the following steps should you perform first? A) Cut each branch supply line to length. B) Install accessible copper manifolds. C) Run PEX through holes in the framing to the manifolds. D) Support the pipe with a plastic hanger.
To secure a pipe within a drilled hole , use A) putty. B) stuffed cotton. C) plastic bushings. D) wadded paper.
