Test: Metal Casting - 1 - Mechanical Engineering MCQ

Which of the following materials can be used for making patterns?  

1. Aluminium  

2. Wax  

3. Stainless steel

4. Lead

Select the correct answer using the codes given below: 

Shrinkage allowance on pattern is provided to compensate for shrinkage when 

In the grain -size determination using standard charts, the relation between the given size number n and the average number of grains 'N' per square inch at a magnification of 100 X is

A gating ratio of 1: 2: 4 is used to design the gating system for magnesium alloy casting. This gating ratio refers to the cross· section areas of the various gating elements as given below:    

1. Down sprue   2. Runner bar  3. Ingates

The correct sequence of the above elements in the ratio 1: 2: 4 is  

Which one of the following gating systems is best suited to obtain directional solidification?

According to Chvorinov's equation, the solidification time of a casting is proportional to:        

v = volume of casting   

With a solidification factor of 0.97 x 10² s/m², the solidification time (in seconds) for a spherical casting of 200 mm diameter is        

 [GATE-2003]

Chills are used in moulds to 

Assertion (A): Steel can be melted in hot blast cupola.    

Reason (R): In hot blast cupola, the flue gases are used to preheat the air blast to the cupola so that the temperature in the furnace is considerably higher than that in a conventional cupola.  

Scab is a         

Which of the following are employed in shell moulding?

1. Resin binder 2. Metal pattern 3. Heating coils

Select the correct answer using the code given below:  

The mould in shell moulding process is made up of which of the following? 

Which of the following materials are used for making patterns in investment casting method?              
1. Wax   2. Rubber  3. Wood   4. Plastic

Select the correct answer using the codes given below:  

During normalizing process of steel, the specimen is heated

Which of the following are produced by slush casting?       

In which of the following are metal moulds used?       

Match List I with List II and select the correct answer using the codes given below the lists: