16/12/2019 Simple Machines (STUDY BY TOPICS JUNIOR CLASS) 0Comments by Gate Academy Welcome to your Simple Machines (STUDY BY TOPICS JUNIOR CLASS) NAME EMAIL PHONE NUMBER 1. What simple machine combines with itself to make a wedge?GearInclined planeLeverWheel and axle2. Which of the following device is not used for holding the work in a drilling machine?none of the mentionedboth step block and drill jigsstep blockdrill jigs3. In drilling operation, work should be held by hand.TrueFalse4. Which of the following are not included under planar mechanisms?Slide crank mechanismPlate cam and followerPlane four bar linkageHooke’s universal joint5. Nut crackers are examples of what class of leverfirst class leversecond class leverfourth class leverfifth class lever6. The drilling machine was primarily designed to originate a _____flat surfacecylindrical surfacenone of the mentionedtaper surface7. How many classes of levers are there?25348. Tapping attachment is included in_______ method of tool holding devices.none of the mentionedby chucksby directly fitting in the spindleby a sleeve9. The distance between fulcrum and dead weights is 100mm. Dead weights are of 2945.2N. An effort of 294.52N acts on the other hand. Find the distance between the fulcrum and other end of the lever.10000mm100mm10mm1000m10. If the link next to the shortest link is fixed, what type of mechanism is obtained?Crank rocker mechanismDouble rocker mechanismDouble crank mechanismLinkage is not planar11. A linkage containing a screw pair is an example ofFlexure mechanismSpatial mechanismPlanar mechanismSpherical mechanism12. A mechanism where there are no restrictions on the relative motion between the particles, the mechanism is calledflexure mechanismplanar mechanismspatial mechanismspherical mechanism13. A right angled bell-crank is designed to raise a load of 5kN at short arm whose length is 100mm. Longer arm is of length 500mm. Calculate the reaction or force acting on the fulcrum.5.16.16.85.814. Coplanar motion is the motion transformation of any planar mechanism.TrueFalse15. For drilling operation, the drill rotates with_____ pressure if job is held on earthnone of the mentioneddownwardupward45 degree inclined to both planes16. Hooke’s universal joint is an example of spatial mechanism.TrueFalse17. When the load is between the fulcrum and the effort it is first class leversecond class leverfifth class leverfourth class lever18. Which of the following method is not used for holding tool?none of the mentionedby a sleeveby a socketby chucks19. All of these are examples of inclined planes except:StaircaseWheelRampHatchet20. Pliers is an example of what class of leverfirst class leverfifth class leverfourth class leversecond class lever21 out of 20Time is Up!
