Cores are used to

A Form internal cavities in the casting
B Improve mould surface
C Form a part of a green sand mould
D All of these

Correct Answer: All of these

Cores are used to Form internal cavities in the casting and Improve mould surfaceand used to Form a part of a green sand mould
core is a device used in casting and moulding processes to produce internal cavities and reentrant angles .
The core is normally a disposable item that is destroyed to get it out of the piece
Bissoy MCQ
#Mechanical Engineering #Workshop Technology

Related Questions

Laminated cores, in electrical machines, are used to reduce
A Copper loss
B Eddy current loss
C Hysteresis loss
D All of the above
The sand used for making cores is
A Green sand
B Dry sand
C Loam sand
D Oil sand
Those magnetic materials are best suited for making armature and transformer cores which have ________permeability and _________hysteresis loss.
A High, high
B Low, high
C High, low
D Low, low
All coil cores are made of iron.
A True
B False
Transformer cores are normally made from
A soft ferrites
B high purity iron
C grain oriented Fe-Si alloy
D AlNiCo alloy
If heater S is used on the third day and different heaters are used on the first and fourth days, then which heater is used on the first day?
A P
B Q
C R
D S
After filling the car's fuel tank, a driver drove from P to Q and then to R. He used 2/5 of the fuel driving from P to Q. if she used another 7 gallons to drive from Q to R and still had 1/4 of the tank full, what is the capacity of the tank in gallons?
A 12
B 18
C 20
D 21
Which can be used for quick access to commonly used commands and tools ?
A Status bar
B Tool bar
C Menu bar
D Title bar
In SQL_____, aggregate function can be used in the select list or the _____clause of a select statement of sub query. They cannot be used in a _____clause.
A where, having
B having, where
C Group by, having
D Group by, where
Which can be used for quick access to commonly used commands and tools?
A Status bar
B Menu bar
C Tool bar
D Title bar

Next steps