Related Questions

Two generators are running in parallel. One of the generators may run as motor for which of the following reasons?
A The direction of that generator is reversed
B The speed of that generator is increased
C The field of that generator is weakened
D That generator takes large share of loads
How many cases do you need if you have to pack 112 pairs of shoes into cases that each hold 28 shoes ?
A 8
B 10
C 12
D 14
During a sale, the price of a pair of shoes is marked down by 10% from the regular price. After the sale ends, the price goes back to the original price. What is the percent increase (to the nearest whole number) form the discounted sale price to the regular price for the shoes?
A 9%
B 10%
C 11%
D 15%
Please _____ sure your seat belt is fastened for take off .
A get
B make
C keep
D be
A body of mass 500 g is fastened to one end of steel with of length 2 m and area of cross-section 2 mn2, It the breaking stress of the wire is 1.25 x 10/7, then the maximum angular velocity with which the body can be rotated in a horizontal circle is:
A 2rad/s
B 3 rad/2
C 4 rad/s
D 5 rad/s
The sleepers resting directly on girder are fastened to the top flange of girder by
A hook bolts
B dog spikes
C fang bolts
D rail screws
Eddy currents are induced in the pole shoes of a D.C. machine due to
A Oscillating magnetic field
B Pulsating magnetic flux
C Relative rotation between field and armature
D All above
The function of pole shoes in the case of D.C. machine is
A To reduce the reluctance of the magnetic path
B To spread out the flux to achieve uniform flux density
C To support the field coil
D To discharge all the above functions
Which one of the following is not the function of pole shoes in a D.C. machine?
A To reduce eddy current loss
B To support the field coils
C To spread out flux for better uniformity
D To reduce the reluctance of the magnetic path
There are 23 poles with a constant distance between each pole. A car takes 24 seconds to reach the 12th pole. How much more time will it take to reach the last pole?
A 40 seconds
B 44 seconds
C 48 seconds
D 46 seconds

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