MACHINES 1

Quiz
•
Physics
•
10th Grade
•
Easy
Beena KN
Used 8+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In a speed multiplier
effort < load
effort > load
effort = load
VR > 1
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following statement about machines is not true:
It can increase magnitude of force
It can increase speed
Its output is greater than input
It can change the direction of force.
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In a practical machine
MA < VR
efficiency = 1
MA > VR
Output = Input
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
If de and dl is distance moved by effort and load respectively and E and L is effort and load, then velocity ratio VR =
de/dl
dl/de
L/E
E/L
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The unit of mechanical advantage and velocity ratio is :
N, m/s
m, m/s
N, no unit
no unit, no unit
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
A machine is driven by an effort of 100 kgf and is able to lift a 500 kgf load. Its MA is
5
0.2
50000
1
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
1000 J
10000 J
50000 J
5000 J
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