MCQ - TNPSC JTO
JTO - 540 - Trade - Workshop Calculation Science
540 - UNIT - 08 - Centre of Gravity Levers and Simple
81)
MA > 1 implies:
A.
B.
C.
D.
82)
MA of a movable pulley is generally:
A.
B.
C.
D.
83)
In an inclined plane, VR is equal to:
A.
B.
C.
D.
84)
If a machine has VR = 4 and MA = 2, what is the efficiency?
A.
B.
C.
D.
85)
Efficiency of an ideal machine is:
A.
B.
C.
D.
86)
Machines are never 100% efficient in real life due to:
A.
B.
C.
D.
87)
Rubber is an example of:
A.
B.
C.
D.
88)
Which graph best represents elastic limit?
A.
B.
C.
D.
89)
Breaking point is the point where:
A.
B.
C.
D.
90)
What is the SI unit of Young’s Modulus?
A.
B.
C.
D.
91)
The CG of a hemisphere lies at:
A.
B.
C.
D.
92)
Which is a compound machine?
A.
B.
C.
D.
93)
Third class levers have:
A.
B.
C.
D.
94)
MA = Load / Effort. If Load = 100 N, Effort = 25 N, MA = ?
A.
B.
C.
D.
95)
In a screw jack, VR depends on:
A.
B.
C.
D.
96)
Efficiency is given by:
A.
B.
C.
D.