MCQ 11 MarkThe useful work done by a machine is known as theAinput energy✓output energyCefficiencyDeffortAnswerCorrect option: B. output energyoutput energyView full question & answer→
MCQ 21 MarkA machine made up of two or more sloping surface is known as .a✓wedgeBscrewCpulleyDleverAnswerCorrect option: A. wedgewedgeView full question & answer→
MCQ 31 MarkThe effort required to lift a load of $800 N$ by using a lever having a mechanical advantage of $1.6$ isA$1080 N$B$240 N$C$720 N$✓$500 N$AnswerCorrect option: D. $500 N$$500 N$View full question & answer→
MCQ 41 MarkThe mechanical advantage of an inclined plane is always✓greater than $1$Bless than $1$Cequal to $1$DzeroAnswerCorrect option: A. greater than $1$greater than $1$View full question & answer→
MCQ 51 MarkA pair of scissors is an example of a/anAwedge✓leverCinclined planeDscrewAnswerCorrect option: B. leverleverView full question & answer→
MCQ 61 MarkWhich of the following is a Class $II$ lever ?APliersBA beam balance✓A nut$-$crackerDA knifeAnswerCorrect option: C. A nut$-$crackerA nut$-$crackerView full question & answer→
MCQ 71 MarkIf the effort lies between the fulcrum and the load, then the lever belongs to which class ?AClass IBClass II✓Class IIIDClass IVAnswerCorrect option: C. Class IIIClass IIIView full question & answer→
MCQ 81 MarkThe force applied on a machine to do work is called theAload✓effortCefficiencyDfulcrumAnswerCorrect option: B. efforteffortView full question & answer→