The form of stress that involves opposed, twisting forces is _____.
a. tension
b. shear
c. compression
d. torsion
Answer: D
You might also like to view...
Manual push-button starters may be used to control single-phase motors rated up to ____.
a. 5 hp b. 10 hp c. 15 hp d. 20 hp
Answer the following statement(s) true (T) or false (F)
1.A receptacle outlet controlled by a wall switch is permitted to serve as a lighting outlet in kitchens. 2.The NEC® allows Class 2 control wiring to be supported by the raceway that supplies power to the piece of equipment (like a furnace) that the control wiring is associated with. 3.Sheetrock, a popular building material used to finish off walls and ceilings in residential and commercial construction, is also referred to as wallboard. 4.Conductors used in residential wiring can be copper, aluminum, or copper-clad aluminum. 5.Section 300.20(A) requires conductors carrying alternating current and installed in ferrous (iron) metal boxes to be arranged to avoid heating the surrounding metal by magnetic induction. 6.Receptacles are not required on a wall directly behind a range, counter-mounted cooking unit, or sink unless there is more than 12 inches of space behind one of these items and the wall.
A 30 kHz clock pulse is applied to a MOD-15 ripple counter. What is the output frequency?
A) 2 kHz B) 1.88 kHz C) 1.55 kHz D) 2.5 kHz
Exclusive gates can have any number of inputs
Indicate whether the statement is true or false