IndiaBIX

Mechanical Engineering - Engineering Mechanics

Exercise : Engineering Mechanics - Section 3
46.
If the body falls freely under gravity, then the gravitational acceleration is taken as
+8.9 m/s2
-8.9 m/s2
+9.8 m/s2
-9.8 m/s2
Answer: Option
Explanation:
No answer description is available. Let's discuss.
47.
A framed structure, as shown in the below figure, is a
perfect frame
deficient frame
redundant frame
none of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
48.
The rate of change of displacement of a body is called
velocity
acceleration
momentum
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
49.
The efficiency of a screw jack is maximum, when(where α = Helix angle, and φ = Angle of friction.)
α = 45° + φ/2
α = 45° - φ/2
α = 90° + φ
α = 90° - φ
Answer: Option
Explanation:
No answer description is available. Let's discuss.
50.
The periodic time (T) is given by(where ω = Angular velocity of particle in rad / s.)
ω/2π
2π/ω
2π x ω
π/ω
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers