Related Questions

In a drag link quick return mechanism, the shortest link is always fixed. The sum of the shortest and longest link is
A equal to sum of other two
B greater than sum of other two
C less than sum of other two
D none of the mentioned
গরম বাতাসে পরিপূর্ণ M ভরের একটি বেলুন (থ্রডি সহ) পৃথিবীর দিকে খুব ত্বরণ a তে নেমে আসছে। ঝুড়ি থেকে কি পরিমান m ভর ফেলে দিলে বেলুনটি উপরের দিকে একই খুব ত্বরন a- তে উঠে যাবে ? সকল ক্ষেত্রে বেলুনটির আয়তন একই ছিল বলে ধরে নেওয়া হলো। (g = অভিকর্ষীয় ত্বরন)(A hot air balloon with a bucket is descending towards the earth with a constant acceleration a. The combined mass of the balloon and bucket is M. What mass m from the bucket should be released so that the balloon starts ascending up with the same acceleration a? Consider the volume of the balloon remains constant at all the time. (g=acceleration due to gravity))
A m=2ag+aM
B m=g+a2M
C m=2ag M
D m=M2a(g+a)
E m=ag+M
Tangential acceleration direction is
A along the angular velocity
B opposite to angular velocity
C perpendicular to angular velocity
D all of the mentioned
The acceleration of a particle at any instant has two components i.e. radial component and tangential component. These two components will be
A Parallel to each other
B Perpendicular to each other
C Inclined at 45°
D Opposite to each other
The sense of delayed gratification of working now for late pleasure has helped shape the economic behaviour of our society. However, that sense is no longer nurtured as consistently in our children as it once was. Foe example , it used to be a bit of patience to put together the toys come in whole. which of the following is an assumption made by the argument?
A The toys in the cereal boxes have changed partly because the economic conditions of our society have improved
B The influence of promotion of gimmicks has on the economic behaviour of our society over time
C The toys that used to come in cereal boxes were put together by the same children who played with them .
D Part of the pleasure of any toy lies in putting the toy together before playing with its
The direction of linear velocity of any point on a link with respect to another point on the same link is
A parallel to the link joining the points
B perpendicular to the link joining the points
C at 450 to the link joining the points
D none of the mentioned
In a mechanism, usually one link is fixed. If the fixed link is changed in a kinematic chain, then relative motion of other links
A will remain same
B will change
C will not occur
D none of the mentioned
When a new trunk link is configured on an IOS-based switch, which VLANs are allowed over the link?
A By default, all VLANs are allowed on the trunk.
B No VLAN's are allowed, you must configure each VLAN by hand.
C Only configured VLAN's are allowed on the link.
D Only extended VLAN's are allowed by default.
When a point at the end of a link moves with constant angular velocity, its acceleration will have
A radial component only
B tangential component only
C coriolis component only
D radial and tangential components both
Angular acceleration of a link can be determined by dividing the
A centripetal component of acceleration with length of link
B tangential component of acceleration with length of link
C resultant acceleration with length of link
D all of the mentioned

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