An electrical contractor charges $598 for a job. The materials cost $263. The cost of labor is $173, and the cost of transportation is $10. Find the profit.
Fill in the blank(s) with the appropriate word(s).
152
You might also like to view...
If P1 = 400 kPa and T1 = 200°C, what is T2 when the piston hits the stops in the 16-cm-diameter cylinder? The mass of air is 0.1 kg.
A) 60°C
B) 55°C
C) 50°C
D) 45°C
The responsibility for coordinating the installation of mechanical and electrical work so as to avoid conflicts with the architectural or structural elements belongs properly to the:
A. general contractor. B. mechanical/Electrical sub-contractor. C. architect/engineer. D. inspector. E. construction manager.
During an AC performance test, an R-134a air conditioning system has a measured center duct outlet temperature of 59 degrees F. A manifold gage set shows low side pressure ranges between 40-55 psi and the high side pressure ranges from 275-375 psi. Shop temperature is 72 degrees F. What is most likely the cause?
a. The TXV is restricted and not allowing sufficient refrigerant to flow b. The system has a low refrierant charge c. The compressor is defective d. The system is overcharged
Isolation amplifiers use what type of coupling?
A) inductive B) optical C) capacitive D) all of the above