Test Your Knowledge - Free MCQ PRACTICE
by Saksham Chaudhry : Paschim Vihar, New Delhi 110063 T: 1142316457, 9810570740
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A fresh set of 20 random questions is generated every time you open this page and every time you refresh it.
For each of the following multiple choice questions, choose the most appropriate answer :

1. A brass shaft is to be turned to a surface roughness Ra = 0.8, with high cutting speed. Which one of the following cutting tool materials is most suitable ?
A. High carbon steel 
B. Cemented carbide 
C. High speed steel  
D. Low alloy steel  

2. What is produced when Aluminium is oxidized with water?
A. Hydrogen 
B. Oxygen 
C. Nitrogen 
D. Carbon dioxide 

3. Which one of the following instruments is used to check the concentricity of the outside diameter?
A. Vernier caliper  
B. Outside micrometer 
C. Dial test indicator  
D. Dial caliper 

4. The bench vice is called as parallel jaw vice because
A. Its width of jaws are parallel 
B. It is fixed parallel to the shop floor 
C. It can hold the jobs having parallel sides 
D. Its movable jaw moves parallel to the fixed jaw 

5. Which of the following is measure of stiffness?
A. Modulus of elasticity 
B. Modulus of plasticity 
C. Resilience 
D. Toughness 

6. Which one of the following properties of a metal has the ability to change its shape without destruction under the influence of external forces ?
A. Plasticity  
B. Elasticity 
C. Stiffness  
D. Malleability 

7. Which one of the following statements in respect of thread chasing dial is false?
A. Thread chasing dial is an additional part of the lathe carriage 
B. Worm gear of chasing dial engages with the lead screw while thread chasing 
C. Thread chasing dial is used to catch the thread when threading on lathe 
D. Thread chasing dial stops rotating when the half nut lever is engaged 

8. Main product of puddling furnace is :
A. Wrought iron 
B. Cold rolled steel 
C. Cast iron 
D. Hot rolled steel 

9. While grinding one must use
A. Dark glass screen  
B. Mask 
C. Safety goggles  
D. Sun goggles 

10. The tip of a cemented carbide tool is joined on the shank by
A. Welding  
B. Brazing 
C. Soldering  
D. Clamping with a screw 

11. Vice clamps are used to
A. Protect the serrated jaws of the vice  
B. Hold the job firmly 
C. Protect the finished surfaces of the job 
D. Protect the file 

12. To get a fine even surface on a workpiece by facing operation on lathe, it is necessary to have
A. High cutting speed, fine feed and heavy depth of cut 
B. Low cutting speed, fine feed and heavy depth of cut 
C. Low cutting speed, fine feed and light depth of cut 
D. High cutting speed, fine feed and light depth of cut 

13. The amount of offset of tailstock for taper turning is done by the offset screws provided. The procedure to be followed is
A. Loosen both the screws and push the base to the amount of offset 
B. Loosen both screws and push the body to the amount of offset 
C. Loosen the screw opposite to the direction of movement and tighten the other screw 
D. Loosen the screw in the direction of movement and tighten the other screw 

14. Desirable hardness in a file is generally
A. 30 HRC  
B. 45 HRC  
C. 60 HRC  
D. 80 HRC 

15. Outside micrometer has a negative error. The correct reading can be taken by
A. Adding twice the negative error in the actual reading 
B. Deducting the negative error from the actual reading 
C. Adding the negative error in the actual reading 
D. Deducting twice the negative error from the actual reading 

16. The soft material particles get clogged in the grinding wheel while grinding. This is called...
A. Truing  
B. Loading 
C. Glazing  
D. Dressing 

17. In case of steel, through which one of the following processes, there will be no increase in hardness ?
A. Heating above 600C and slow cooling  
B. Rolling 
C. Hammering  
D. Alloying with chromium 

18. Most suitable pitch of the hacksaw blade for cutting thin section tubes is
A. 0.8 mm  
B. 1.0 mm 
C. 1.4 mm  
D. 1.8 mm 

19. Which one of the following frictions occurs in an un-lubricated journal bearing ?
A. Sliding friction  
B. Rolling friction 
C. Fluid friction  
D. Dry friction 

20. Cutting angle of a flat chisel for chipping aluminium is
A. 35  
B. 55 
C. 60  
D. 70 

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