Free Printable Sheet metal works

1.

The operation of cutting a cylindrical hole in a sheet of metal by the punch and die is called_______.

a)

Punching

b)

Shearing

c)

Blanking

d)

Piercing

e)

Bending

2.

The process in which leaving a tab without any material is

a)

Notching

b)

Lancing

c)

Parting

d)

Sliting

3.

The process in which the edge of the sheet is folded over itself to increases the stiffness of the part, is called

a)

Dimpling

b)

Hemming

c)

Spinning

d)

Peen forming

4.

Which of the following is a sheet metal forming process?

a)

forging

b)

tube drawing

c)

pipe drawing

d)

Rolling

5.

In sheet metal operation two edges are joined by ______.

a)

Grooving

b)

Seaming

c)

Heming

d)

Bending

6.

Removing pieces from the edge in shearing operation is known as ________

a)

Coining

b)

Notching

c)

Grooving

d)

Lancing

7.

The engineering strain on the outer and inner fibers of a sheet during bending is given by

a)

$e=\frac{1}{\left(\frac{2R}{T}\right)+1}$

b)

$e=\frac{1}{2R+T}$

c)

$e=\frac{1}{\left(\frac{2\pi R}{T}\right)+1}$

d)

$e=\frac{1}{\left(\frac{2T}{R}\right)+1}$

8.

Minimum bend radius is given by

a)

$R=T\left(\frac{50}{r}-1\right)$

b)

$R=T\left(\frac{5}{2r}-1\right)$

c)

$R=r\left(\frac{5}{2T}\right)-1$

d)

$R=T\left(\frac{50-1}{r}\right)$

9.

Excluding friction, the maximum bending force is given by

a)

$P=\frac{kYWT^2}{L}$

b)

$P=\frac{kYLT^2}{W}$

c)

$F=\frac{kYTL^2}{W}$

d)

$F=\frac{kWLT^2}{h}$

10.

An approximate formula for the bend allowance is given by

a)

$L_b=ὰ(R-KT)$

b)

$L^b=ὰ(RKT)$

c)

$L_b=ὰ(R+KT)$

d)

$L_b=ὰ(T-KR)$

11.

What are the types of sheet metal bending that do not require a pressure pad ?

a)

Edge Bending

b)

V-Bending

c)

Rotary Bending

d)

Air Bending

12.

Which of the following is true regarding bending?

a)

Bending creates only tension in the material

b)

Bending creates both compression and tension in the material

c)

Sheet metal bending is performed in lower temperatures

d)

Bending process changes the volume of the material

13.

What does gauge refer to with sheet metal?

a)

The type of metal

b)

The thickness of metal

c)

The coating on the metal

d)

The cost of the metal

14.

in neutral layer, which force acts during bending?

a)

compression

b)

tensile

c)

flexural

d)

none

15.

k factor is the ratio of

a)

t/T

b)

1/t

c)

T/t

d)

1/T

Sheet metal works

Total questions: 15

Worksheet time: 11mins

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