Exam 3

Question 1

Which organization governs the specific requirements for the design of Tubular or Non-tubular Welded Connections, structural members?

Answer 1

AWS

Question 2

Which job documents are the best at describing the configuration and size of a weldment?

Answer 2

Drawings

Question 3

Why are tolerances required on drawings?

Answer 3

1. to guide the inspector on permissible size variations

2. to show the total amount of variation permitted from the design size.

Question 4

For fillet welds between parts with surfaces that meet at an angle between 80 degrees and 100 degrees which determines the fillet weld leg size?

Answer 4

contract documents

Question 5

How long should the effective length of a fillet weld be?

Answer 5

Curved - measured along L of the effective throat

Straight - overall length + end returns

Question 6

What is the effective area of a fillet weld?

Answer 6

The overall length of the full size fillet, including end returns.

Question 7

In a 1/2” fillet weld, what should the minimum effective length be?`

Answer 7

2 inches

Question 8

On an intermittent fillet weld in a T-joint, which may not be less than four times the amount of the weld, what is the minimum length of any segment?

Answer 8

1-1/2 inches

Question 9

What is the minimum length of any intermittent fillet weld?

Answer 9

1-1/2 inches

Question 10

What are the two points used to measure the shortest distance for the effective throat thickness of a fillet weld?

Answer 10

The root to the face

Question 11

Without special detail along the edge of connected parts of a 3/8” plate, the maximum effective size of a fillet weld is:

Answer 11

5/16”

Question 12

What is the maximum fillet weld size on 1/4” thick steel, according to AWS D1.1?

Answer 12

3/16”

Question 13

What is the maximum size fillet weld specification allowed on the edges of two 3/8” thick plates, joined in a lap joint configuration?

Answer 13

5/16”

Question 14

What is the maximum size fillet weld allowed for use along the edge of a 5/8” plate?

Answer 14

9/16”`

Question 15

What is the maximum size of a fillet weld allowed along the edge of a 3/16” plate

Answer 15

3/16”

Question 16

The effective area of a groove weld is:

Answer 16

the effective length times the effective weld size.

Question 17

The effective length of a straight fillet weld is:

Answer 17

the overall length of the full-size fillet including end returns.

Question 18

For a statically loaded lap joint on 1/4 inch thick steel, what is the maximum fillet weld size according to AWS D1.1

Answer 18

3/16”

Question 19

In stress carrying members, the welded overlap joints must be lapped five times the thickness of the thinner part, but never less than:

Answer 19

1”

Question 20

What is the maximum size fillet weld that can be detailed along the edges of two 3/8” plates joined in a lap joint configuration?

Answer 20

5/16”

Question 21

What is the definition for “T” joints where the angle between joined parts is more than 100 degrees or less than 80 degrees?

Answer 21

Skewed ‘T’

Question 22

In a skewed T-joint, to be considered effective in transmitting applied force, the minimum angle of the plates to be welded with a fillet weld must be what degrees or less?

Answer 22

30 degrees

Question 23

True or False: A skewed T-joint’s effective length is the overall length at the full-size weld?

Answer 23

True

Question 24

The effective area of a plug or slot weld is:

Answer 24

the nominal area of the hole

Question 25

For material 2" thick, what should the thickness of the plug weld be?

Answer 25

1"

Question 26

What is the minimum thickness in 1-1/2 inch material of a plug or slot weld?

Answer 26

3/4"

Question 27

What is the minimum thickness in 3/8" plate of a plug or slot weld?

Answer 27

3/8"

Question 28

What is the minimum thickness in 1" plate of a plug or slot weld?

Answer 28

5/8"

Question 29

A fillet welded lap joint must have a lap of five times the thickness of the thinner plate, but at least:

Answer 29

1 inch

Question 30

What should the hold back be on a weld ending near the edge of a connection subject to tension?

Answer 30

At least the weld size

Question 31

True or False: it is prohibited to have fillet welds on opposite sides of a common weld?

Answer 31

True

Question 32

What specific type of weld is a fillet weld in a hole or slot?

Answer 32

Fillet welds

Question 33

Center to center spacing of plug welds must be at least:

Answer 33

4 x the diameter of the hole

Question 34

True or False: Fillers under 1/4" thick can be used to carry stress.

Answer 34

False

Question 35

What is the minimum distance of the end returns if a fillet weld is returned continuously around the corner of a beam seat?

Answer 35

Twice the size of the weld.

Question 36

True or False: Groove welds that are made from only one side without backing, or made with backing other than steel, that are not qualified in compliance with Clause 6 are prohibited.

Answer 36

True

Question 37

Which of the following joints and welds are prohibited? a. fillet welds less than or equal to 1/8" b. fillet welds less than 3/16" c. fillet welds less than or equal to 3/16" d. none of the above

Answer 37

All fillet welds less than 3/16"