Related Questions

A flywheel is fitted to the crankshaft of an engine having W as the amount of indicated work per revolution and permissible limits of coefficient of fluctuation of energy and speed as CE and CS respectively. The kinetic energy of the flywheel is given by
A 2WCE/CS
B WCE/2CS
C WCE/CS
D WCS/2CE
By walking at 3/4 of his usual speed, a man reaches his office 20 minutes later than usual. His usual time is :
A 30 minutes
B 75 minutes
C 45 minutes
D 60 minutes
With usual notations the depth of the neutral axis of a balanced section, is given by
A $$\frac{{{\text{mc}}}}{{\text{t}}} = \frac{{{\text{d}} - {\text{n}}}}{{\text{n}}}$$
B $$\frac{{\text{t}}}{{{\text{mc}}}} = \frac{{\text{n}}}{{{\text{d}} - {\text{n}}}}$$
C $$\frac{{\text{t}}}{{{\text{mc}}}} = \frac{{{\text{d}} + {\text{n}}}}{{\text{n}}}$$
D $$\frac{{{\text{mc}}}}{{\text{t}}} = \frac{{\text{n}}}{{{\text{d}} - {\text{n}}}}$$
If the rotating mass of a rim type flywheel is distributed on another rim type flywheel whose mean radius is half the mean radius of the former, then energy stored in the latter at the same speed will be
A four times the first one
B same as the first one
C one fourth of the first one
D one and a half times the first one
A person walking 5/6 of his usual rate is 40 minutes late. What is his usual time?
A 2 hours 20 minutes
B 3 hours 20 minutes
C 2 hours
D 4 hours 10 minutes
A train left 1 hour later than the scheduled time but in order to reach its destination 200 km away in time, it had to increase its usual speed by 10 km/hr. What is the usual speed (in km/hr) of the train?
A 38
B 42
C 45
D 40
Travelling at 4/5th of his usual speed, a man is 15 minutes late. What is his usual time to cover the same distance?
A 15 min
B 1 hr
C 75 min
D 45 min
Which of the following is used to control the speed variations of the engine caused by the fluctuations of the engine turning moment?
A D-slide valve
B Governor
C Flywheel
D Meyer’s expansion valve
The scattering resulting from fiber imperfections like core-cladding RI differences, diameter fluctuations, strains, and bubbles is
A Rayleigh scattering
B Mie scattering
C Stimulated Brillouin scattering
D Stimulated Raman scattering
When the bearing is subjected to large fluctuations of load and heavy impacts, the bearing characteristic number should be _________ the bearing modulus.
A 10 times
B 5 times
C 15 times
D 20 times

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