Related Questions

K produces 100 parts twice as fast as G does. G produces 100 parts in 40 minutes. If each produces parts at a constant rate, how many parts will K produces in 6 minutes.
A 30
B 25
C 20
D 15
Austenitic manganese steel used for making jaws of crushing machines contains about __________ percent manganese.
A 1.5-2
B 3.5-4.5
C 7-9
D 12-14
Machine A produces bolts at a uniform rate of 120 every 40 seconds and Machine B produces bolts at a uniform rate of 100 every 20 seconds. If the two machines run simultaneously , how many seconds will it take for them to produce a total of 200 bolts.
A 22
B 25
C 28
D 32
Machine A produces bolts at a uniform rate of 120 every 40 seconds, and Machine B produces bolts at a uniform rate of 100 every 20 seconds. If the two machines run simultaneously, how many seconds will it take for them to produce total of 200 bolts?
A 22
B 25
C 28
D 32
Switching of a lamp in house produces noise in the radio. This is because switching operation produces
A Arcs across separating contacts
B Mechanical noise of high intensity
C Both mechanical noise and arc between contacts
D None of the above
Which one of the following States shares boundaries with the maximum number of other States of India ?
A Madhya Pradesh
B Maharashtra
C Assam
D Bihar
Which of the following is not true about manganese?
A It is used in heating elements of electric iron, toasters etc.
B Affects its resistance at high temperature levels
C Manganese is an electronegative element
D It does not oxidize easily
The system in which high tensile alloy steel bars (silica manganese steel) are used as pre-stressing tendons, is known as
A Freyssinet system
B Magnel-Blaton system
C C.C.L. standard system
D Lee-McCall system
Manganese is added in low carbon steel to
A Make the steel tougher and harder
B Raise the yield point
C Make the steel ductile and of good bending qualities
D All of the above
Presence of iron and manganese in water causes
A Reduction in its dissolved oxygen content
B Discoloration of bathroom fixtures
C Temporary hardness
D None of these

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