Q1. "Which of the following is a ferrous alloy?"
(A) " Brass"
(B) " Aluminum alloys"
(C) " Cast steel "
(D) " All of these"


Q2. Which of the following is a power transmitting element?
(A) Nuts and bolts
(B) Sprockets and chains
(C) Axles
(D) All of these


Q3. Machine elements such as bearings are
(A) holding type elements
(B) supporting type elements
(C) power transmitting elements
(D) All of these


Q4. The shaft directly connected to the power source is called as ______
(A) line shaft
(B) counter shaft
(C) Both of these
(D) None of these


Q5. Which of the following is a machine shaft?
(A) Line shaft
(B) Counter shaft
(C) Crankshaft
(D) All of these


Q6. Which of the following statements is/are true?
(A) Axles are used to transmit power
(B) Shafts and axles are rotating elements
(C) Shafts transmit power while axles do not transmit power
(D) All of these


Q7. Which flat belt drive system has two pulleys mounted on driven shaft and one pulley on driving shaft?
(A) Multiple belt drive
(B) Cone pulley drive
(C) Fast and loose pulley drive
(D) None of these


Q8. Which of the following statements are false for belt drives?
(A) Belt drive is used in applications having constant speed drive
(B) Belt drives can be used at extremely high speeds
(C) Belt drives need continuous lubrication
(D) All of these


Q9. Why is an idler gear used in gear trains?
(A) To obtain minimum centre distance between driving and driven shaft
(B) To have required direction of rotation
(C) Both of these
(D) None of these


Q10. The process of creating mechanisms and shapes of mechanical elements for a machine to get the desired output for a given input is called as
(A) analysis
(B) innovation
(C) synthesis
(D) designing


Q11. Which of the following is not a reason to design and redesign a product?
(A) Optimum design
(B) Innovation
(C) Appearance
(D) None of these


Q12. In design process, which process is followed after selecting the material?
(A) Selecting factor of safety
(B) Synthesis
(C) Analysis of forces
(D) Determining mode of failure


Q13. Which design consideration deals with appearance of the product?
(A) Ergonomics
(B) Aesthetics
(C) System design
(D) Creative design


Q14. The objective of considering ergonomics in machine design is to
(A) decrease physical stresses
(B) make machine fit for the user
(C) Both of these
(D) None of these


Q15. Hardness of a material enables it to resist
(A) abrasion
(B) penetration
(C) plastic deformation
(D) All of these


Q16. The component deforming progressively under load at high temperatures is called as
(A) Resilience
(B) Creep
(C) Fatigue
(D) All of these


Q17. Which of the following ferrous alloys can be casted into intricate shapes?
(A) Plain carbon steels
(B) Alloy steels
(C) Cast irons
(D) All of these


Q18. Which of the following is not a property of copper alloy?
(A) High electrical conductivity
(B) High thermal conductivity
(C) High strength
(D) None of these


Q19. What is the percentage of carbon in plain carbon steel?
(A) 50 to 80%
(B) Less than 1.7%
(C) Less than 9%
(D) None of these


Q20. What are the minimum number of kinematic pairs required in a kinematic chain?
(A) 2 kinematic pairs
(B) 3 kinematic pairs
(C) 4 kinematic pairs
(D) None of these


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