1. Which of the following is NOT an example of a lever?

☐ a hammer pulling a nail

☐ a staircase

☐ a seesaw

☐ a crowbar

A 24-foot simple span laterally supported beam is required to carry a uniformly distributed load of 8.0 klf. Select the lightest A992 steel beams for each of these combinations of load considering only flexure.

You test the lighting for the first time none of the new lights work, but the old ones do. What should you do first?

You could be sued if you injure someone while rescuing them if ... 1. your car's brakes failed 2. the accelerator in your car got stuck 3. they ran a red light and hit you 4. you collided with their car on purpose

While discussing electrical relays: Technician A says that the relay's coil is energized when the circuit's control switch is open. This action connects power to the load circuit.

A 4-kW electric heater runs for 2 hours to raise the room temperature to the desired level. Determine the amount of electric energy used in both kWh and kJ.

Which component stores energy as potential energy in a mechanical system?

A floor system has W24 x 55 sections spaced 8'-0"" o. c. supporting a floor dead load of 50 psf and a live load of 80 psf. Determine the governing load. Show all work.

What are the 2 elements that make up the transportation system?

Fossils found in the La Brea tar pits indicate a California climate that was A) similar to today's climate. B) similar to the present-day tundra. C) desert-like, much drier and hotter than today.

Can the United States defeat Iranian forces