Troubleshooting Challenge 410A bumity is 60.7%

Indoor dry bulb temp 80°F Indoor wet bulb temp 70°F

Refrigerant R410A

Outdoor ambient temp 89°F hot

Suction line temp 75°F

Liquid line temp 128ºF

Actual Condensing pressure 485 PSIG (131.1 °F)

Actual Evaporator pressure 144 PSIG (50.33 °F)

Diagnose the problem (Only one)

Low Evaporator Airflow (Low load)

Refrigerant Undercharged

Refrigerant Overcharged

High heat load (High Indoor Temperature or Leak in return duct)

Asingle-geared blanking press has a stroke of 200 mm and a rated capacity of 320 kn. a cam driven ram is assumed to be capable of delivering the full press load at constant force during the last 15 percent of a constant-velocity stroke. the camshaft has an average speed of 90 rev/min and is geared to the flywheel shaft at a 6: 1 ratio. the total work done is to include an allowance of 16 percent for friction a) estimate the maximum energy fluctuation b) find the rim weight for an effective diameter of 1.2 m and a coefficient of speed fluctuation of 0.10

For a gate width of 2 m into the paper, determine the force required to hold the gate abc at its location.

Afoot bridge is made as a simple deck, 4 m long, with a cross section 2 m (wide) and 20 cm thick, and made of wood. the deck is supported at the two ends. the maximum load allowable on the bridge is 10 tons, provided it is uniformly distributed on the deck. to sense this load, a strain gauge is placed at the center of the bridge and its resistance is monitored. if the sensor has a nominal resistance of 350 s2 and a gauge factor of 3.6, what is the reading of the strain gauge at maximum load? the modulus of elasticity for the wood used in the construction is 10 gpa.