Class III levers are designed to have

ICSE Machines 2 Grade 10

Quiz
•
Physics
•
10th Grade
•
Hard
Beena KN
Used 94+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
MA=VR
MA>VR
MA>1
MA<1
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
For practical machines
MA>VR
MA<VR
MA=VR
MA =100%
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The loss of energy in a machine is due to
Different parts are not rigid
Moving parts are not frictionless
String is not elastic
All of the above
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which term does not change for a machine of given design
MA
Efficiency
VR
All of above
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The correct relationship between MA, VR, and efficiency is :
MA = Efficiency x VR
VR = MA X Efficiency
Efficiency = MA x VR
Efficiency = MA + VR
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A single fixed pulley is used as :
a force multiplier
a speed multiplier
a device to change the direction of force
an energy multiplier
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
For a single movable pulley relation between load(L) and effort(E) is :
E = L
E = L/2
L = E/2
E = L2
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