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ESE ME 2018 Achiever Study Plan: Machine Design Quiz 4
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Question 1
What is the main advantage of hydro-dynamic bearing over roller bearing?
Question 2
Which one of the following is correct?
A hydrodynamic slider bearing develops load bearings capacity mainly because of
A hydrodynamic slider bearing develops load bearings capacity mainly because of
Question 3
If the load on a ball bearing is halved, its life
Question 4
The use of straight or curved external gear teeth in mesh with internal teeth in ‘gear and spline couplings’ is specifically employed to accommodate
Question 5
Power screws are used to produce uniform, slow and powerful motion such as required in presses, jacks and other machinery. ’V’ threads are usually not used for this application due to low efficiency. This is because:
Question 6
For Roller Chain drive with sprocket having 10 teeth, the velocity of the driven shaft with respect to that of drive will be approximately
Question 7
Match List-I (Type of Anti-friction Bearing) with List-II (Specific Use) select the correct answer using the code given below the lists:
List-I
A). Self-aligning ball bearing
B). Taper roller bearing
C). Deep groove ball bearing
D). Thrust ball bearing
List-II
1). For pure axial load
2). For hinged condition
3). For pure radial load
4). For axial and radial load
List-I
A). Self-aligning ball bearing
B). Taper roller bearing
C). Deep groove ball bearing
D). Thrust ball bearing
List-II
1). For pure axial load
2). For hinged condition
3). For pure radial load
4). For axial and radial load
Question 8
Which of the following hardness tests uses the principle of measurement of depth of indentation for obtaining the hardness value of the material being tested?
Question 9
In a power screw square threads, the torque required to raise the given load is found to be 8800 N-m. The core diameter of the screw is 40 mm. The shear stress due to this torque in the power screw is:
Question 10
A force ‘F’ is to be transmitted through a square-threaded power screw into a nut. If ‘t’ is the height of the nut and ‘d’ is the minor diameter, the which one of the following is the average shear stress over the screw thread?
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Jul 12ESE & GATE ME
