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Elements of Mechanical Engineering

Total questions: 15

Worksheet time: 8mins

Name
Class
Date
1.

The industries that take output from primary industries and convert them to consumer goods are

a)

Tertiary industries

b)

Primary industries

c)

Secondary industries

2.

___________________ is used to give basic property, shape and size

a)

Secondary manufacturing

b)

Primary manufacturing

c)

Additive manufacturing

3.

The place where casting work is done

a)

Casting shop

b)

Melting shop

c)

Foundry shop

4.

Forging is an operation where metal is heated and then an continuous compressive force is applied

a)

True

b)

False

5.

Process of confining the metal in a closed cavity and then pushing it through a die opening is called as

a)

Extrusion

b)

Drawing

6.

In permanent joints connected parts can be separated easily with out damaging the parts

a)

True

b)

False

7.

Method of joining similar or dissimilar metals by means of a filler material whose melting temperature is above 450˚C

a)

Soldering

b)

Brazing

c)

Welding

8.

In arc welding process, when do you say that circuit is closed

a)

When the electrode touches the workpiece

b)

when you switch on the transformer

c)

when you bring the electrode 3mm above the workpiece

9.

Which one is not related to the definition of Additive manufacturing

a)

Layer by Layer

b)

From 3D CAD data

c)

Production line

d)

Product data

10.

Additive manufacturing process is the requirement to convert a CAD model into _______ file

a)

.prt

b)

.iges

c)

.slt

d)

.stl

11.

Inert gases such as nitrogen and argon are typically used during additive manufacturing process to control

a)

Machine

b)

Material flow

c)

Build chamber environment

12.

3-D model can be fabricated directly without the need for process planning

a)

Yes

b)

No

13.

The filler material used in Brazing is called as

a)

Spelter

b)

Solder

c)

Brazer

14.

When do you say the flame is neutral in oxy-acetylene welding?

a)

When there is excess oxygen supply

b)

When there is excess acetylene supply

c)

When the gases are supplied in equal proportions

15.

In plastic welding, Metal parts are heated to the plastic state and then fused together by ______________

a)

inserting filler material

b)

applying external pressure

c)

just keeping it side by side