Related Questions

When two pulleys are connected by means of a cross belt drive, then both the pulleys will rotate in _________ directions.
A Same
B Opposite
C Perpendicular
D None of these
The objective of 'crowning' of the flat pulleys of belt drive is to
A Prevent the belt from running off the pulley
B Increase the power transmission capacity
C Increase the belt velocity
D Prevent the belt joint from damaging the belt surface
The steel pulleys are __________ in weight than cast iron pulleys of the same capacity.
A Heavier
B Lighter
C Moderate
D None of these
If the number of pulleys in a system is equal to its velocity ratio, then it is a __________ system of pulleys.
A First
B Second
C Third
D None of these
The velocity ratio for the first system of pulleys is (where n is the number of pulleys.)
A n
B n2
C 2n
D 2n - 1
You are about to install a second IDE hard drive in a PC that has only one IDE adapter. Your first hard drive will still be the boot drive. How should the second drive be configured?
A as a master
B as a secondary
C as a slave
D as a primary
E as auto-select
The ratio of driving tensions in V-belt drives is __________ flat belt drives.
A Equal to
B sin$$\,\alpha $$ times more than
C sin$$\,\alpha $$ times less than
D cosec$$\,\alpha $$ times more than
When two pulleys of different diameters are connected by means of an open belt, the angle of contact at the ________ pulley must be taken into consideration.
A Smaller
B Larger
C Either A or B
D None of these
The groove angle of pulleys for V-belt is
A 34° to 36°
B 42° to 45°
C More than 45°
D 30° to 32°
A pulley and belt in a belt drive form a
A Cylindrical pair
B Turning pair
C Rolling pair
D Sliding pair

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