The lubrication of a motor at prescribed intervals can be accomplished using a _____.
a. countdown clock
b. bimetallic relay
c. timing relay
d. mechanical interlock
c. timing relay
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Compressed liquid water at 1000 kPa and 30°C enters an insulated mixing chamber at 50 kg/s. The water is mixed in the chamber with superheated steam at 1000 kPa. The combined flow exits as a saturated liquid at 1000 kPa. Using your mixing chamber model to calculate the data, plot the mass flow rate of the superheated steam for entering steam temperatures ranging from 200°C to 500°C.
State 1: Liquid inlet; State 2: Steam inlet; State 3: Outlet Given: P1 = P2 = P3 = 1000 kPa; T1 = 30°C; x3 = 0.0; m?1= 50 kg/s Assume: Q?=0 (insulated). Given no other information regarding the mixing chamber, make the following common assumptions: W?=?KE=?PE=0 Also, assume the mixing chamber is a multiple-inlet, single-outlet, steady-state, steady-flow device.
What instrument is used to take readings at specified intervals for later review?
a. Clamp-on ammeter b. Multimeter c. Data logger d. Voltmeter
Which is NOT a part of a disc brake?
A) Rotor B) Splash shield C) Caliper D) Spindle
A load study that calculates the load for each individual room as well as the entire house is called:
A) A unified load calculation. B) A room-by-room load calculation. C) A composite load calculation. D) A shell load calculation.