## CWI test exam question.

## CWI test exam question.

(OP)

I know this has been asked before. But can anyone tell me to what extent the CWI exam has as far as math questions? Are there certain formula's you have to calculate and are the questions multiple choice? The math is the only thing that has me worried. Sorry if I'm asking repiticious questions, but I'm studying hard for this.

## RE: CWI test exam question.

You should be able to convert fractions to decimals, calculate tensile strength using load/area, perform basic addition and subtraction, and work with percentages for the code/specific part of the test.

ASNT publishes a guide for test taking...the principals for the CWI are identical.

Good luck...study hard and you will be ok...

http://w

## RE: CWI test exam question.

.75 x .75 = .5625 in2. (Area)

50,000 lb/.5625 in2 = 88,888 lb/in2.

Also, be able to back calculate that question, if it were asked like, calculate the load the test coupon broke at if the ultimate tensile strength is 88,888 lb/in2 and the area of the coupon is .5625 in2.

x/.5625 in2 = 88,888 lb/in2

x = 88,888 lb/in2 * .5625 in2

x = 50,000 lb

What is the area of the coupon if the load is 50,000 lb and the ultimate tensile strength is 88,888 lb/in2?

50,000 lb/x = 88,888 lb/in2

x = 50,000 lb/88,888 lb/in2

x = .5625 in2

## RE: CWI test exam question.

## RE: CWI test exam question.

Richard S.

ASNT NDT Level III

API 510,570,653, AWS-CWI

## RE: CWI test exam question.

## RE: CWI test exam question.