Five people must be lifted in an elevator to a distance of 100 m. The work is found to be 341.2 kJ and the gravitational acceleration is 9.75 m/s2. The average mass per person is
A.65 kg
B.72 kg
C.70 kg
D.67.5 kg
Category: Mechanical Engineering Mcqs
The economic life of a building is considered to be at an end under which of the following conditions?
A.When the income from the building fails to justify its existence
B.When the cost of repairs is more than the income
C.When thebuilding facilities become obsolete
D.When the capitalization rate becomes high
E.When the directional growth of area is turned away from it
A magneto-strictive transducer works on the principle of variations of
A.Permeability of magnetic materials when subjected to strain
B.Resistance of material when subjected to strain
C.Flux linkage of material when subjected to strain
D.None of the above
A point on a link connecting double slider crank chain will trace a (an)
A.Straight line
B.Circle
C.Parabola
D.Hyperbola
E.Ellipse
In jet engines the compression ratio
A.Varies with altitude
B.Varies with altitude
C.Varies with square of speed
D.Remains constant
E.Depends on other factors
The normal capacity of a one metre escalator is around
A.1000 passengers per hour
B.2000 to 3000 passengers per hour
C.5000 to 6000 passengers per hour
D.8000 to 10000 passengers per hour
As a result of heavy taxes on a commodity its supply
A.increases
B.decreases
C.remains unaffected
Which of the following is a diesel engined vehicle?
A.Ambassador Mark II
B.Fiat 1100
C.Premier Padmini
D.Standard Gazel
E.None of the above
A gas turbine works on
A.Carnot cycle
B.Brayton cycle
C.Dual cycle
D.Rankine cycle
E.Regenerative cycle
In a vehicle the probable cause for hard steering could be
A.Low tyre pressure
B.Bent wheel spindle
C.Tie rod ends tight
D.Excessive castor
E.Any of the above
