2. Which of the following defects do not occur nat-

urally in wood?

An AC sine wave has an effective value of 100V what's the peak value of the waveform

Which size of impurity atom, smaller impurity atom or larger impurity atom, when located near a dislocation, will nullify some of the compressive strain of a dislocation in a crystal? Why?

Determine the phase or phases in a system consisting of H2O at the following conditions, sketch p-v and T-v diagrams showing the location of each state and determine the specified property at at the indicated state. a.) p = 5 bar, T = 151.

Describe the term Coefficient of Performance (COP) in relation to heating or cooling cyclic systems.

A spherical soap bubble with a surface-tension of 0.005lbf/ft is expanded from a diameter of 0.5 in to 3.0 in. How much work, in Btu, is required to expand this bubble

The pressure and temperature at the beginning of compression of an air-standard Diesel cycle are95 kPa and 300 K, respectively. At the end of the heat addition, the pressure is 7.2 MPa and thetemperature is 2150 K.

Explain two Types of bearing?

7 Single-use earplugs require a professional fitting before they can be used. A True B) False

Electric power is to be generated by installing a hydraulic turbine-generator at a site 138 m below the free surface of a large water reservoir that can supply water at a rate of 2400 kg/s steadily. Determine the power generation potential.

When the French horn plays with brass instruments, then it is played very softly to match the texture. True/False