Engineering, 07.11.2020 20:30 kaitlyn114433

PLEASE HELP (Its due today pls help) I will give 40 points 1.
What is the amperage rating of an electrical device that uses 12 kilowatts of electricity when operated for 6 hours in a 120-volt circuit?

2.
How many watts will be used in 16 hours if an electric motor requires 5.5 amperes of electricity, and is on a 120 volt electrical circuit 10 hours?

3.
An agricultural mechanics shop has five 120 watt lights, a 700-watt saw and a 120-watt fan that were used for 6 hours. How many KILOWATTS of electricity were used?

4.
What is the amperage of a circuit with ten 100 watt light bulbs in a 120-volt circuit?

5.
If electricity costs $0.12 per kilowatt hour, how much does it cost to operate a router which requires 12 amperes of electricity and is used in a 120 volt electrical circuit for 4 hours?

6.
If the local rate for electricity is $.11 per kilowatt hour, how much should the electric bill be for 240 kilowatt hours?

7.
If the local rate for electricity is $0.07 per kilowatt hour, how much does it cost to operate an electric motor requiring 25 amperes of electricity if used in a 120 volt circuit for one hour?

8.
What is the watt rating of a portable electric drill with 40 amps and 120 volts?

9.
How many watts of current does an electric motor which requires 10 amperes of electricity and is designed to be used in a 120 volt electrical circuit use in one hour?

10.
How many kilowatts of current does a portable saw that requires 12 amperes of electricity and is designed to be used in a 120-volt electrical circuit use in one hour?

Answers: 1

Show answers

Another question on Engineering

Engineering, 03.07.2019 14:10

If the thermal strain developed in polyimide film during deposition is given as 0.0044. assume room temperature is kept at 17.3 c, and thermal coefficient of expansion for the film and the substrate are 54 x 10^-6c^-1 and 3.3 x 10^-6c^-1respectively. calculate the deposition temperature.

Answers: 3

Answer

Engineering, 04.07.2019 08:10

Which of the following is an easy way to remember the modified “x” tire rotation? a. nondrive wheels straight, cross the drive wheels b. drive wheels straight, cross the nondrive wheels c. drive wheels crossed, nondrive wheels straight d. drive wheels crossed, nondrive wheels crossed

Answers: 1

Answer

Engineering, 04.07.2019 18:10

Apump is used to circulate hot water in a home heating system. water enters the well-insulated pump operating at steady state at a rate of 0.42 gal/min. the inlet pressure and temperature are 14.7 lbf/in.2, and 180°f, respectively; at the exit the pressure is 60 lbf/in.2 the pump requires 1/15 hp of power input. water can be modeled as an incompressible substance with constant density of 60.58 lb/ft3 and constant specific heat of 1 btu/lb or. neglecting kinetic and potential energy effects, determine the temperature change, in °r, as the water flows through the pump.

Answers: 1

Answer

Engineering, 04.07.2019 18:10

An air compression refrigeration system is to have an air pressure of 100 psia in the brine tank and an allowable air temperature increase of 60°f for standard vapor compression cycle temperatures of 77 f entering the expansion cylinder and 14 f entering the compression cylinder, calculate the coefficient of performance a. 2.5 b 3.3 c. 4.0 d. 5.0

Answers: 3

Answer

You know the right answer?

PLEASE HELP (Its due today pls help) I will give 40 points 1.
What is the amperage rating of...

Questions