Mechanical Engineering - Online Test

Q1.
Consider the differential equation
 The numerical value of  is
Answer : Option D
Explaination / Solution:



Q2. A force P is applied at a distance x from the end of the beam as shown in the figure. What would be the value of x so that the displacement at ‘A’ is equal to zero? 

Answer : Option C
Explaination / Solution:
No Explaination.


Q3. A solid sphere of radius r1 = 20 mm is placed concentrically inside a hollow sphere of radius r2 = 30 mm as shown in the figure.

The view factor F21 for radiation heat transfer is 
Answer : Option B
Explaination / Solution:



Q4. The maximum possible draft in cold rolling of sheet increases with the
Answer : Option A
Explaination / Solution:
No Explaination.


Q5. A fair coin is tossed till a head appears for the first time. The probability that the number of required tosses is odd, is
Answer : Option C
Explaination / Solution:



Q6. Consider a rotating disk cam and a translating roller follower with zero offset. Which one of the following pitch curves, parameterized by t, lying in the interval 0 to 2π, is associated with the maximum translation of the follower during one full rotation of the cam rotating about the center at (x, y) = (0, 0) ?
Answer : Option C
Explaination / Solution:

From all the four options the maximum amplitudes is in point ‘C’ as t = 0. 

Option ‘C’ has maximum net amplitude.  

Q7. If a mass of moist air in an airtight vessel is heated to a higher temperature, then
Answer : Option D
Explaination / Solution:
No Explaination.


Q8. The operation in which oil is permeated into the pores of a powder metallurgy product is known as
Answer : Option C
Explaination / Solution:
No Explaination.


Q9. The equation  has
Answer : Option D
Explaination / Solution:
No Explaination.


Q10. Consider a rotating disk cam and a translating roller follower with zero offset. Which one of the following pitch curves, parameterized by t, lying in the interval 0 to 2π, is associated with the maximum translation of the follower during one full rotation of the cam rotating about the center at (x, y) = (0, 0) ?
Answer : Option C
Explaination / Solution:

From all the four options the maximum amplitudes is in point ‘C’ as t = 0. 

Option ‘C’ has maximum net amplitude.