18 Questions
What type of gear is equivalent to two helical gears, one having a right-hand helix and the other a left-hand helix?
Herringbone gear
What is the nominal diameter of bolts?
Pitch diameter
What type of lubrication involves manual or drip lubrication?
Type B
What is the opposite of clearance for the mating of cylindrical parts in which the internal member is larger than the external member?
Interference
What type of brake works by using an electromagnet to slow a rotating wheel?
Eddy-current brake
What is the characteristic of a stress-strain curve for a glass rod during a tensile test?
A sudden break
What is the ratio of the number of teeth to the pitch diameter of a gear?
Diametral pitch
What type of key is used where maximum torque capacity is desired?
Permanent key
What is the radial distance between the sharp crest and the cylinder that bounds the crest?
Crest truncation
What is the term for quantities that are completely specified when their magnitude is known?
Scalar
What is the ratio of stress acting on an elastic substance to the decrease in volume per unit volume?
Bulk modulus
What is the ability of a material to withstand completely reversing loads?
Endurance strength
What is the ratio of the circumference of the pitch circle to the number of teeth?
Circular pitch
What type of thread is commonly used in manufacturing?
Whitworth thread
What is the angle included between the sides of the thread measured in the axial plane of a screw thread?
Angle of thread
What is the depth of tooth space below the pitch circle?
Dedendum
What is the property of a material that relates the lateral strain to the longitudinal strain?
Poisson’s ratio
What is the characteristic of a material that enables it to withstand forces that cause twisting?
Torsional strength
Test your knowledge of machine design fundamentals, including gear specifications and key types. This quiz covers the basics of gear design and key selection.
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