Related Questions

In a belt drive, the pulley diameter is doubled, the belt tension and pulley width remaining same. The changes required in key will be
A Increase key length
B Increase key depth
C Increase key width
D Double all the dimensions
A rope 2-.6 meters long cut is into two pieces .If the length of one piece of rope is 2.8 meters shorter than the length of the other , what is the length , in meters, of the longer piece of rope?
A 7.5
B 11.7
C 8.9
D 10.3
A lift of weight W is lifted by a rope with an acceleration f. If the area of cross-section of the rope is A, the stress in the rope is
A $$\frac{{{\text{W}}\left( {1 + \frac{{\text{f}}}{{\text{g}}}} \right)}}{{\text{A}}}$$
B $$\frac{{\left( {1 - \frac{{\text{g}}}{{\text{f}}}} \right)}}{{\text{A}}}$$
C $$\frac{{{\text{W}}\left( {2 + \frac{{\text{f}}}{{\text{g}}}} \right)}}{{\text{A}}}$$
D $$\frac{{{\text{W}}\left( {2 + \frac{{\text{g}}}{{\text{f}}}} \right)}}{{\text{A}}}$$
m এবং 2m ভরের দুটি আয়তাকার বাক্স একটি ঘর্ষণহীন অনুভূমিক পৃষ্ঠে একটি দড়ি দ্বারা সংযুক্ত। F মাত্রার একটি সম্মুখ বল দ্বারা ভারী বাক্সটিকে ডানদিকে টানা হচ্ছে। ফলে, হালকা বাক্সটি দড়ি দ্বারা টান অনুভব করে। দড়িটিতে টান কত? (Two rectangular boxes of masses m and 2m are on a frictionless horizontal surface and connected by a rope. A forward force of magnitude F is pulling the more massive box toward right. As a result, the less massive box is pulled by the rope. What is the tension in the rope?)
A F
B F/6
C F/3
D F/2
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
For same pulley diameters, center distance, belt speed and belt and pulley materials,
A Open belt drive transmits more power than crossed belt drive
B Crossed belt drive transmits more power than open belt drive
C Open and crossed belt drives transmit same power
D Power transmission does not depend upon open and crossed types of constructions
The velocity ratio of a differential pulley block with D and d as the diameters of larger and smaller pulley, is
A $$\frac{{\text{D}}}{{{\text{D}} - {\text{d}}}}$$
B $$\frac{{\text{D}}}{{{\text{D}} + {\text{d}}}}$$
C $$\frac{{2{\text{D}}}}{{{\text{D}} - {\text{d}}}}$$
D $$\frac{{2{\text{D}}}}{{{\text{D}} + {\text{d}}}}$$
A rope cut into 3 pieces with each piece twice as long as the previous one. If the length of longest piece is 3 meter ,What was the length of the rope in meter ?
A 6.5
B 6
C 5.5
D 5.25
A light rope is loaded with many equal weights at equal horizontal intervals. The points of suspension on the rope lie on a
A Parabola
B Catenary
C Cycloid
D Ellipse
Pulley in a belt drive acts as
A cylindrical pair
B turning pair
C rolling pair
D sliding pair

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