Related Questions

Two men and women are entrusted with a task. The second man needs three hours more to cope up with the job than the second man and the woman would need working together. The first man, working alone, would need as much time as second man and the woman working together. The first man working alone, would spend eight hours less than the double period of the time second man would spend working alone. How much time would the two men and the women need to complete the task if they all asked together?
A 1 hour
B 2 hours
C 3 hours
D 4 hours
E 5 hours
A business is owned by 9 women and 1 man . each of whom owns an equal share. If one of the women sells of her share to the man and another woman keeps 1/5 of her share and sells the rest to the man , what fraction of the business will the man won?
A 1/2
B 11/32
C 7/8
D 23/100
The major reason of hydrodynamic noise (i.e., noise resulting from liquid flow) is
A Pipe vibrations
B Cavitation
C Boundary layer separation
D Fluctuation in liquid flow
Aerodynamic noise resulting from turbulent gas flow is the most prevalent source of valve noise in fluid ilow control. It is caused due to
A Reynold stresses
B Shear forces
C Both A & B
D Neither A nor B
Most metals expand and contrast ------- variations ----temperature.
A with, in
B from, of
C by, of
D to, from
In a turning moment diagram, the variations of energy above and below the mean resisting torque line is called
A fluctuation of energy
B maximum fluctuation of energy
C coefficient of fluctuation of energy
D none of the mentioned
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
Introducing a resistor in the emitter of a common amplifier stabilizes the dc operating point against variations in
A Only the temperature
B only the β of the transistor
C Both Temperature & β
D None of the above
Iron losses in a D.C. machine are independent of variations in
A Speed
B Load
C Voltage
D Speed and voltage
Ecotype is a type of species in which environmentally induced variations are
A Temporary
B Genetically fixed
C Genetically not related
D None of the above

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