Casting

Casting

University

20 Qs

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Casting

Casting

Assessment

Quiz

Instructional Technology, Science

University

Practice Problem

Hard

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20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The low permeability in sand can cause which of the following defects in casting

Rough surface

Blow holes

Hot Tears

Drop

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The distortion in casting cannot be prevented by

modification of casting design

modification of casting design

providing sufficient machining allowance to cover the distortion effect

providing proper shrinkage allowance

3.

MULTIPLE SELECT QUESTION

3 mins • 1 pt

Which of the following is true in case of directional solidification?

all parts of a casting do not cool at the same time due to varying cross sections

The rate of heat loss varies to adjoining mould walls

The thinnest section solidify first and the riser solidify last

4.

MULTIPLE SELECT QUESTION

3 mins • 1 pt

Which of the following is true about riser?

It permits the molten metal to rise above the highest point in the casting.

Filling up of mould cavity can be visually checked from it.

The casting solidifies directionally towards the riser

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of the following is not a casting defect?

Swell

Hot Tears

Shrinkage

Hot Cracks

6.

MULTIPLE SELECT QUESTION

3 mins • 1 pt

Which of the following is true for sand castings?

They cannot be used for pressure tight vessels

They are stronger than wrought products

They have lower density and poor strength

They have poor ductility

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

According to their use, which of the following is not a type of moulding sand?

Green Sand

Dry Sand

Loam Sand

Wet Sand

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