WorksheetsGRINIDING MACHINE
Total questions: 20
Worksheet time: 30mins
What factor influences the grinding allowance in grinding machines?
The material of the grinding wheel
The type of coolant used
The required accuracy, size of workpiece, and previous machining operations
The speed of the grinding wheel
What type of wheel is commonly used on a typical horizontal spindle reciprocating-table grinder?
Round-shaped wheel
Straight-shaped wheel
Conical-shaped wheel
Cylindrical-shaped wheel
What is the function of the adjustable dogs (4) on a horizontal spindle reciprocating-table grinder?
To set up the speed of the grinding wheel
To adjust the depth of cut
To reverse the table travel at the ends of the stroke
To secure the workpiece on the table
What is the purpose of the T-slots on the table (2) of a horizontal spindle reciprocating-table grinder?
For adjusting the speed of the table
For clamping workpieces directly or clamping grinding fixtures or a magnetic chuck
For mounting the grinding wheel
For controlling the hydraulic flow
What is the main characteristic of Creep Feed Grinding (CFG)?
The workpiece is fed quickly past the wheel
A shallow depth of cut is used
The wheel is not dressed continuously
A large depth of cut (1–6 mm) is taken in a single pass
Which type of machine is primarily used for grinding external cylindrical surfaces, such as crankshaft bearings, spindles, and shafts?
Surface grinding machine
Cylindrical grinding machine
Pedestal grinder
Bench grinder
In traverse cylindrical grinding, how does the grinding wheel move?
It only rotates about its axis
It rotates and moves intermittently in a crosswise motion at the ends of the traverse stroke
It only moves longitudinally
It does not move, only the workpiece moves
What is one of the difficulties encountered in internal grinding due to the small size of the grinding wheel (GW) and spindle?
The reduced rigidity of the small spindles makes it impossible to take heavy cuts
The inability to rotate the wheel at high speeds
Excessive coolant usage
The workpiece cannot be fed through the machine
When is grinding typically performed in the manufacturing process?
It is usually the first operation
It is one of the final operations performed on manufactured products
It is performed at random stages of manufacturing
It is only performed during rough machining
What is abrasive machining primarily used for?
Cutting metals only
Finishing hard materials and hardened steels
Only for cleaning surfaces
Polishing plastics
Abrasive machining is used for cutting off which of the following?
Soft metals
Hardened shafts, masonry, granite, and concrete
Wood and rubber
Paper and cardboard
What does the high cutting speed of the grinding wheel (GW) provide in terms of the grinding process?
It reduces the dimensional and form accuracy.
It provides high dimensional and form accuracy along with high surface quality.
It increases the material removal rate significantly.
It leads to lower surface quality and rough finishes.
What is one of the key benefits of grinding in terms of dimensional accuracy and surface finish?
It requires a long time to achieve accurate dimensions and smooth surfaces.
It can achieve very accurate dimensions and smoother surfaces in a very short time.
It cannot achieve high accuracy in dimensions and surface finish.
It only works for rough surfaces, not smooth ones
What distinguishes grinding wheels (GWs)?
Their bond type only
Their abrasive material only
Their shapes, sizes, and manufacturing characteristics
Their color
Which of the following is classified as a conventional abrasive?
CBN
Diamond
Silicon carbide
CBN and Diamond
Which of the following sieve sizes belongs to the coarse category?
30, 36, 46
70, 80, 90
10, 12, 14
220, 240, 280
What does the wheel grade of a grinding wheel (GW) measure?
The size of the abrasive grains
The force holding the grains
The hardness of the wheel material
The temperature resistance of the wheel
Which of the following is a standard bond type for a grinding wheel?
Polished bond
Metallic bond
Composite bond
Diamond bond
What is the purpose of Shape 2 in grinding?
For surface grinding
For grinding with the periphery or side of the wheel
For tool sharpening
For cylindrical surface grinding
What can happen if a grinding wheel (GW) is not balanced properly?
Increased speed and efficiency
A more accurate surface finish
Serious damage, including wheel breakage and injury
A smoother grinding operation
