Workshop Technology MCQ Questions & Answers

1

In a _______, the molten metal is poured and allowed to solidify while the mould is revolving.

A) Die casting method B) Slush casting method C) Permanent mould casting method D) Centrifugal casting method

Discuss

Answer & Solution

Answer: Option D

Solution:

In the centrifugal casting process, molten metal is poured into a preheated, spinning die.
The die may be oriented either on a vertical or horizontal axis depending on the configuration of the desired par

2

A sand employed on the faces of the pattern before moulding, is called

A) Green sand B) Dry sand C) Loam sand D) Parting sand

Discuss

Answer & Solution

Answer: Option D

Solution:

A pure silica sand employed on the faces of the pattern before moulding is known as parting sand.
When the pattern is withdrawn from the mould, the moulding sand sticks to it.
To avoid sticking, parting sand is sprinkled on the pattern before it is embedded in the moulding sand

3

The mode of deformation of the metal during spinning is

A) Bending B) Stretching C) Rolling and stretching D) Bending and stretching

Discuss

Answer & Solution

Answer: Option D

Solution:

The mode of deformation of the metal during spinning is Bending and stretching

4

The material which can be best cut with oxygen cutting process is

A) Mild steel B) Brass C) Copper D) Aluminium

Discuss

Answer & Solution

Answer: Option A

Solution:

The material which can be best cut with oxygen cutting process is Mild steel

5

During hot working of metals

A) Porosity of the metal is largely eliminated B) Grain structure of the metal is refined C) Mechanical properties are improved due to refinement of grains D) All of the above

Discuss

Answer & Solution

Answer: Option D

Solution:

During hot working of metals the Porosity of the metal is largely eliminated and Grain structure of the metal is refined and Mechanical properties are improved due to refinement of grains

6

The temperature of oxy-hydrogen flame is ________ oxyacetylene flame.

A) Same as B) Less than C) More than D) None of these

Discuss

Answer & Solution

Answer: Option B

Solution:

The maximum temperature of Oxy-hydrogen flame is about 2,800°C.
The temperature of the oxyacetylene flame 3,480°C.

Workshop Technology MCQ Questions & Answers | Mechanical Engineering