80001. Doubled threads are composed of two or more ridges running side by side.
80002. A screw thread is a ridge of uniform section in the form of a helix on the external or internal surface of a cylinder.
80003. The major diameter is the largest diameter of a screw thread.
80004. Pitch is equal to 12 divided by the number of threads per inch.
80005. Springs may be classified as either helical springs or flat springs.
80006. Rivets are not considered permanent fasteners.
80007. A machine pin is a mechanical device designed to store energy when deflected and to return the equivalent amount of energy when released.
80008. Tap drill depth does not include the cone point of the drill.
80009. Thread length, finish, and proportions are some of the standard characteristics of bolts and nuts.
80010. A torsion spring is a type of helical spring.
80011. An internal thread is a thread on the outside of a member.
80012. The axis of a screw is the longitudinal centerline through the screw.
80013. The root is the top surface joining the two sides of a thread.
80014. The form of a thread is the cross section of the thread cut by a plane containing the axis.
80015. Multiple threads are composed of one ridge, and the lead is equal to the pitch.
80016. A Class 3 fit is exceptionally high quality and recommended only when high cost of precision is warranted.
80017. These include taper pins, straight pins, dowel pins, clevis pins, and cotter pins:
80018. The distance a screw thread advances axially in one turn is the:
80019. The standard number of threads per inch for various diameters is the:
80020. This type of fit is high quality and is used for the bulk of interchangeable screw thread work:
80021. This type of thread is a thread on the inside of a member:
80022. Acceptable parts must not extend beyond this:
80023. This practice considers an individual part's dimensions and tolerances and that part's relation to its related parts:
80024. Defining the datum reference frame is necessary to apply GDT principles.
80025. Specific tolerances are based on the part's function and fit.
80026. Nominal size is used for general identification and is usually expressed in decimals.
80027. Unilateral tolerances have traditionally been given on angles.
80028. Geometric dimensioning and tolerancing can simplify the inspection process.
80029. Geometric tolerances state the maximum allowable variations of a form or its position from the perfect geometry implied in the drawing.
80030. In reference to geometric tolerancing, the term "geometric" refers to forms such as planes, cylinders, and squares.
80031. Implied 90 degree angles typically have different general tolerances applied to them than other angles covered by a general note.
80032. Datum surfaces and features are used as references to control other features.
80033. Allowance is the maximum clearance or minimum interference specified to achieve a fit between two mating parts.
80034. The ISO has its own system of preferred metric limits and fits.
80035. Increased precision makes parts less expensive to manufacture.
80036. Tolerance is the total amount a specific dimension is permitted to vary.
80037. Large batches of parts may use statistical methods to control quality where a sample of parts is inspected.
80038. Tolerances of form and position are typically not used to control straightness.
80039. When lines intersect on a drawing at angles of this many degrees, it is customary not to dimension the angle:
80040. This is the term for the range of tightness or looseness resulting from the allowances and tolerances in mating parts:
80041. This is the measured size of a finished part:
80042. This means that a feature of a finished product contains the maximum amount of material permitted by the toleranced dimensions for that feature:
80043. This is the theoretically exact size from which limits of size are determined:
80044. In order to convert fractional inches into decimal inches ________.
80045. We ......... meat for the lunch today.?
80046. Referring to the fractional inches to decimal inches to millimeter conversion chart on page 55 what is the equivalent mm measurement of 3/16 inch.
80047. Some traditional board drafters preferred the drafting machine over the parallel straight edge because it could be used without the need for________.
80048. The first step in creating a traditional technical drawing is to ________.
80049. With some imagination, traditional drafters could actually produce a true 3-dimensional drawing.
80050. The parallel straight edge can be used for aligning the paper as well as drawing horizontal lines.