Related Questions

The application of second type levers is found in
A Handle of a hand pump
B Hand wheel of a punching press
C Lever of a loaded safety valve
D A pair of tongs
In the levers of first type, the mechanical advantage is ________ one.
A Less than
B Equal to
C More than
D None of these
The application of third type levers is found in
A A pair of tongs
B Hand wheel of a punching press
C Lever of a loaded safety valve
D Handle of a hand pump
In the levers of __________ type, the mechanical advantage is less than one.
A First
B Second
C Third
D None of these
In the levers of third type, the mechanical advantage is __________ one.
A Less than
B Equal to
C More than
D None of these
In levers, leverage is the ratio of
A Load lifted to the effort applied
B Mechanical advantage to the velocity ratio
C Load arm to the effort arm
D Effort arm to the load arm
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
In a sample of 50 people, 19 had type O blood, 22 had type A blood, 7 had type B blood and 2 had type AB blood. If a person is selected randomly, find the probability that the person has neither type A nor type O blood?
A 15/25
B 31/50
C 11/25
D 9/50
Type 1 workers can do three times the work of Type 2 workers. Twelve Type 1 workers can complete a task in 10 days. How many days would it have taken 4 Type 1 and 8 Type 2 workers to complete the same task?
A 16
B 17
C 20
D 18
An empty fuel tank of a car was filled with A type petrol. When the tank was half-empty, it was filled with B type petrol. Again when the tank was half-empty, it was filled with A type petrol. When the tank was half-empty again, it was filled with B type petrol. What is the percentage of A type petrol at present in the tank?
A 33.5%
B 37.5%
C 40%
D 50%

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