What is the main disadvantage of roller chain couplings?
What will be an ideal response?
Noise.
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Refer to Figure 1. What is the total load a feeder serving four 2hp motors, three 5hp motors, one 15hp motor, and one 25hp motor? All motors are 208V.
a. 50A
b. 145.2A
c. 201.1A
d. 219.8A
In a load of 10 cubic meters of topsoil, approximately how many cubic meters of the volume would be solid material?
A) 7.5 B) 1 C) 5 D) 4 E) 2.5
Which of the following is an incorrect statement regarding air system fittings and transitions?
a. Their pressure loss is greater than that of a given length of the same size straight duct. b. They can be used to change the direction of airflow in a duct system. c. They have the same pressure loss per foot as the same size of straight duct. d. They can be used to change the velocity of airflow in an air duct system.
Why should you be sure that the fifth wheel plate is greased as required?
a. To reduce heat and noise. b. To prevent steering problems. c. To ensure good electrical connections.