Related Questions

Which D.C. motor is generally preferred for cranes and hoists?
A Series motor
B Shunt motor
C Cumulatively compounded motor
D Differentially compounded motor
Buses, trains, trolleys, hoists, cranes require high starting torque and therefore make use of
A D.C. series motor
B D.C. shunt motor
C Induction motor
D All of above motors
The rated loads of lifting cranes, as percentage of tipping load at specified radius, for crawler-mounted and pneumatic tyre-mounted machines would be respectively
A 80 and 90
B 90 and 80
C 85 and 75
D 75 and 83
Out of 7500 candidates 75% were offered to study in Arts and 45% in Business. How many were offered both ?
A 1000
B 1750
C 2000
D 1500
Out of 7500 candidates 75% were offered to study in arts and 45% in Business .How many were offered both?
A 1000
B 1750
C 2000
D 1500
Which of the following motors are preferred for overhead traveling cranes?
A Slow speed motors
B Continuous duty motors
C Short time rated motors
D None of the above
Light duty cranes are used in which of the following?
A Power houses
B Pumping stations
C Automobile workshops
D All of the above
Short time rated motors are preferred for overhead traveling cranes
A True
B False
The traveling speed of cranes varies from
A 20 to 30 m/s
B 10 to 15 m/s
C 5 to 10 m/s
D 1 to 2.5 m/s
In testing a pile by load test, pile platform is loaded with one and half times the design load and a maximum settlement is noted. The load is gradually removed and the consequent rebound is measured. For a safe pile, the net settlement (i.e. total settlement minus rebound) per tonne of test load should not exceed
A 10 mm
B 15 mm
C 20 mm
D 25 mm

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