The engine in Problem 3-8 produces 57 kW of brake power at 2000 RPM. Calculate: (a) Torque. [N-m] (b) Mechanical efficiency. [%] (c) Brake mean effective pressure. [kPa] (d) Indicated specific fuel consumption. [gmlkW-hr]

At 12 noon, the count in a bacteria culture was 400; at 4: 00 pm the count was 1200 let p(t) denote the bacteria cou population growth law. find: (a) an expression for the bacteria count at any time t (b) the bacteria count at 10 am. (c) the time required for the bacteria count to reach 1800.

Which from the following instrument is commonly used to detect the high pitch butzing sound in bearings? [clo4] a)-digital ultrasonic meter b)-infrared camera c)-spectroscopic d)-vibrometer

Machinery that is a key part of the process and without which the plant or process cannot function is classifed as: (clo4) a)-critical machinery b)-essential machinery c)-general purpose machinery d)-none of the specified options.