Cylinder Block Specialist









No. of Questions= 10 




















     1. 

Machinist A says that all oil gallery plugs should be removed when the block is cleaned.  
Machinist B says that all core plugs should be removed before the block is cleaned.  Which 
machinist is correct?

        
    
        



    

    
















    
    
    

    


    

    

    
    
        a)
        
    Machinist A only
        
    



    

    

    
    
        b)
        
    Machinist B only
        
    



    

    

    
    
        c)
        
    Both Machinist A and B
        
    



    

    

    
    
        d)
        
    Neither Machinist A nor B
        
    



    
    

    

    
    







    
    
        

        








     2. 

Machinist A says that aluminum blocks should only be cleaned using a blaster.  Machinist B 
says that aluminum blocks can be cleaned in an oven.  Which machinist is correct?

        
    
        



    

    
















    
    
    

    


    

    

    
    
        a)
        
    Machinist A only
        
    



    

    

    
    
        b)
        
    Machinist B only
        
    



    

    

    
    
        c)
        
    Both Machinist A and B
        
    



    

    

    
    
        d)
        
    Neither Machinist A nor B
        
    



    
    

    

    
    







    
    
        

        








     3. 

Before an engine block is machined, the machinist should first determine the minimum 
allowable ________.

        
    
        



    

    
















    
    
    

    


    

    

    
    
        a)
        
    Bore center
        
    



    

    

    
    
        b)
        
    Block deck height
        
    



    

    

    
    
        c)
        
    Pan rail length
        
    



    

    

    
    
        d)
        
    Saddle depth
        
    



    
    

    

    
    







    
    
        

        








     4. 

Machinist A says that the main bearing caps should be installed and torqued to specification 
before the block is align honed.  Machinist B says that the main bearing caps should be 
installed and torqued to specification before the block is bored.  Which machinist is correct?

        
    
        



    

    
















    
    
    

    


    

    

    
    
        a)
        
    Machinist A only
        
    



    

    

    
    
        b)
        
    Machinist B only
        
    



    

    

    
    
        c)
        
    Both Machinist A and B
        
    



    

    

    
    
        d)
        
    Neither Machinist A nor B
        
    



    
    

    

    
    







    
    
        

        








     5. 

Machinist A says that the block deck should be machined before align boring is done. 
Machinist B says that the block deck should be machined before the cylinders are bored.  
Which machinist is correct?

        
    
        



    

    
















    
    
    

    


    

    

    
    
        a)
        
    Machinist A only
        
    



    

    

    
    
        b)
        
    Machinist B only
        
    



    

    

    
    
        c)
        
    Both Machinist A and B
        
    



    

    

    
    
        d)
        
    Neither Machinist A nor B
        
    



    
    

    

    
    







    
    
        

        








     6. 

When align honing, about how much material should be removed from the main bearing 
caps?

        
    
        



    

    
















    
    
    

    


    

    

    
    
        a)
        
    0.002 inch (0.05 millimeter)
        
    



    

    

    
    
        b)
        
    0.004 inch (0.10 millimeter)
        
    



    

    

    
    
        c)
        
    0.008 inch (0.20 millimeter)
        
    



    

    

    
    
        d)
        
    0.010 inch (0.25 millimeter)
        
    



    
    

    

    
    







    
    
        

        








     7. 

The surface finish of a cast-iron block deck should be ________.
        
    
        



    

    
















    
    
    

    


    

    

    
    
        a)
        
    10 to 30 Ra
        
    



    

    

    
    
        b)
        
    30 to 60 Ra
        
    



    

    

    
    
        c)
        
    60 to 100 Ra
        
    



    

    

    
    
        d)
        
    100 to 120 Ra
        
    



    
    

    

    
    







    
    
        

        








     8. 

A cast-iron V-8 engine has two cylinders that are tapered 0.005 inch (0.13 millimeter).  
Machinist A says to hone all cylinders and use standard piston rings.  Machinist B says to 
bore all cylinders to the same oversize measurement.  Which machinist is correct?

        
    
        



    

    
















    
    
    

    


    

    

    
    
        a)
        
    Machinist A only
        
    



    

    

    
    
        b)
        
    Machinist B only
        
    



    

    

    
    
        c)
        
    Both Machinist A and B
        
    



    

    

    
    
        d)
        
    Neither Machinist A nor B
        
    



    
    

    

    
    







    
    
        

        








     9. 

A cast-iron V-8 block has one cylinder that is out of round 0.005 inch (0.13 millimeter).  The other cylinders are worn just to the point of being 0.003 inch out of round.  Machinist A says to sleeve the one cylinder.  Machinist B says to bore the one cylinder.  Which machinist is correct?

        
    
        



    

    
















    
    
    

    


    

    

    
    
        a)
        
    Machinist A only
        
    



    

    

    
    
        b)
        
    Machinist B only
        
    



    

    

    
    
        c)
        
    Both Machinist A and B
        
    



    

    

    
    
        d)
        
    Neither Machinist A nor B
        
    



    
    

    

    
    







    
    
        

        








     10. 

Machinist A says that an engine should be bored to the largest possible size.  Machinist B 
says that 0.005 inch (0.13 millimeter) should be left for honing after the cylinder is bored.  
Which machinist is correct?

        
    
        



    

    
















    
    
    

    


    

    

    
    
        a)
        
    Machinist A only
        
    



    

    

    
    
        b)
        
    Machinist B only
        
    



    

    

    
    
        c)
        
    Both Machinist A and B
        
    



    

    

    
    
        d)
        
    Neither Machinist A nor B
        
    



    
    

    

    
    







    
    
        

        


















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