Fab unit 1-4

A scriber can be used to punch holes in metal.*

no

A standing seam is never riveted, bolted, or button punched.*

no

Aviation snips can be used to cut wire and banding.*

no

Combination-blade snips are as strong as straight-blade snips.*

no

Draw bands can be used with spiral pipe.*

no

Forming puts all of the pieces together to form the completed fittings or duct. *

no

Left-handed aviation snips cut in a counter-clockwise direction and are marked "cuts-right".*

no

Like a saw, the file should always cut on the return stroke.*

no

Locks are seams that lock together using additional means, such as welding or riveting.*

no

One advantage of straight-blade snips is that curves are easy to cut because metal cannot roll over the top of the blade.*

no

One advantage of the Torx screwdriver is that it can be used to tighten any type of screw.*

no

Right-handed aviation snips are marked "cuts right".*

no

The ductwork on shop drawing is without detail and dimension.*

no

staging is another name of delivering

no

Elbow locks are used only _________________.*

on round pipe

TDC and TDF systems are __________________. *

patented duct connections

10. Always use a ___________________ to remove small pieces of metal that have not cleared the back of the machine.*

piece of metal

4. Never bend ____________________ in the brake.*

round stock

Another name for the shop ticket is the _______________.*

shop order

A coffin lock is _______________.*

soldered

The raised bead on a bead and crimp joint ________________.*

stiffens the pipe and provides a stop

A Vanstone edge is ______________. *

the 90 degree flange on duct with companion flanges

11. A squaring shear, also called a jump shear, is used to _________________.*

thin sheet metal

A clip is used ___________________.*

to hold sheet metal products in place

9. The bottom die is the __________________ or female die.*

v die

A Pittsburgh lock is a true lock because it has a 1/4" tail.*

yes

A ball peen hammer can be used for striking chisels and punches.*

yes

A lap seam can be spot-welded.*

yes

A portable band saw can be used to cut through strut.*

yes

A spin collar is formed on a special rollforming machine.*

yes

A water level can be used to maintain elevations while running ductwork.*

yes

Beaded and crimped joints are the most common joints for round pipe.*

yes

Channel lock pliers can be adjusted to different sizes.*

yes

Clips can be purchased or custom-made in the shop.*

yes

Coil-line systems are special systems that form rectangular ductwork from sheets of metal.*

yes

Formed edges are formed from the sheet metal itself.*

yes

Hems and edges are used mainly in architectural sheet-metal work and special projects.*

yes

In architectural shops, strip items (such as gutters and fascia) are often assembled in 20-foot or 30-foot lengths.*

yes

In the cutting position, the upper blade of left-handed aviation snips is on the cutter's left.*

yes

In the cutting position, the upper blade of the right hand aviation snips is on the cutter's right.*

yes

Lap seams are commonly used for roof flashing and gutters.*

yes

Marking gauges are used to mark notches or lap and seam allowances by scratching a line into the metal parallel to the edge.*

yes

Modifications on a coil line system that are not authorized by the factory - regardless of who performs them - may cause unsafe conditions. *

yes

Never position yourself between a stand of material and a piece of equipment.*

yes

One advantage of combination-blade snips is that the curved surface of the blade allows metal to flow over the blade, making it ideal for cutting curves.*

yes

Several methods can be used to join a seam.*

yes

Sheet metal is formed by following the marking made by the layout process.*

yes

Shop drawings are generated from design drawings.*

yes

Shoulder locks provide support for one piece of metal joined to another at right angles. *

yes

Side cutting pliers can be used to cut and strip wire.*

yes

Some of the tens steps in a typical shop's fabrication procedure might be combined in a small shop.*

yes

Standing seams are often staggered on ductwork.*

yes

Straight-blade snips are better for cutting a straight line than combination-blade snips.*

yes

The cutting and notching of fitting patterns is often done during the layout.*

yes

The shop ticket provides such information as the job number, sketch number, and identification number.*

yes

The shop tickets are used by shear operators to blank out the pieces needed for each item.*

yes

The typical workflow in a coil-line system is (a) shearing, (b) notching, (c) roll forming, (d) insulating, and (e) bending.*

yes

Unishears can be used to cut in any direction.*

yes

8. Brakes have about __________________ less capacity for stainless steel compared to their capacity for mild steel.*

50 percent

A coil-line system is one in which the shop tickets and cut lists are calculated by the computer when an operator feeds the data on each fitting or piece of duct into the system.*

no

When using a disk grinder, be sure to ___________________.*

Unplug when changing disks and always wear a face sheild

A disk grinder is used to direct sparks into the weld.*

no

The dimensions on the cut list include _________________.*

allowances for seams and connections

With the ________________ the capacity of the brake is reduced by 4 gauges.*

angle bar removed

Companion flanges are __________________.*

angle iron riveted or welded to duct

Knocked-down delivery costs less for transportation ________________.*

because more pieces can be loaded on the truck

6. __________________ is expressed as three or four numbers (such as 816 or 1016) and refers to mild steel.*

brake capacity

The coil line ________________.*

can cut notch and form duct

14. A __________________ can be used to form drive cleats after duct has been cut, notched, or formed. *

cleat bender

S and drives ___________________.*

connect transverse joints of ductwork

Dovetail seams are practical for ________________.*

connecting round pipe or a collar to flat matels

The first step in shop work is _________________.*

creating the shop drawing

13. A hydraulic brake uses an electric pump, hydraulic lines, fluid, and ______________ to operate the ram.*

cylinders

7. On a mechanical powered press brake, a __________________ sets the ram in motion.*

foot switch

5. When working on a(n) _____________________ by yourself, be sure no one is near the balance weight on the other end of the brake.*

hand brake

Keep cords and hoses away from ________________.*

heat oil and sharp edges

2. A box and pan brake can make ____________________ bends.*

inside and out

When using a power tool, the first thing to do is ______________.*

inspect it

When setting up or threading a coil line, you should always operate in ________________.*

jog mode

The blank produced from the cut list should be _________________.*

just big enough to make one part

15. The cutting blades of the shear are called ___________________.*

knives

Computerized cutting of sheet metal ____________________. *

lays out a series of patterns on a single sheet

3. A hand brake is used to bend ___________________. *

light gauge sheet metal

23. A flat seam is ________________.*

like a standing seam that has been bent flat

12. It is best to ___________________ the press brake when changing dies.*

lock out and tag out

The layout person ______________.*

marks the inside of each blank

A pattern strip _______________.*

marks the location of bend lines

A clinch lock is based on two folded edges hooked together.*

no

A riveting hammer has a flat face at right angles to its sides.*

no