If the rotating mass of a rim type flywheel is distributed on another rim type flywheel whose mean radius is half the mean radius of the former, then energy stored in the later at the same speed will be

1.  Four times the first one

2.  Same as the first one

3.  One fourth of the first one

4.  One and a half times the first one

View Answer  
4
Correct Answer :

One fourth of the first one


Explanation :
No Explanation available for this question

A flywheel is fitted to the crankshaft of an engine having ‘E’ amount of indicated work per revolution and permissible limits of coefficient of fluctuation of energy and speed as Ke and Ks respectively. The kinetic energy of the flywheel is given by

1.  2KeE/Ks

2.  KeE/2Ks

3.  KeE/Ks

4.  KsE/2Ke

View Answer  
4
Correct Answer :

KsE/2Ke


Explanation :
No Explanation available for this question

For a twin cylinder V-engine, the crank position for Primary reverse cranks and Secondary direct cranks are given in the following diagrams The engine is a

1.  600 V – engine

2.  1200 V - engine

3.  300 V - engine

4.  1500 V - engine

View Answer  
4
Correct Answer :

300 V - engine


Explanation :
No Explanation available for this question

In an automobile service station, an automobile is in a lifted up position by means of a hydraulic jack, a person working in the service station gives a tap to one rear wheel and make it rotate by one revolution. The rotation of another rear wheel is

1.  Zero

2.  Also one revolution in the same direction

3.  Also one revolution but in the opposite direction

4.  Unpredictable

View Answer  
4
Correct Answer :

Also one revolution but in the opposite direction


Explanation :
No Explanation available for this question

Match List-I wish List-II and select the correct answer using the codes given below the lists List-I (Standard tooth forms) List-II (Advantages & Disadvantages) (A) 20 and 25 systems 1. Results in lower loads bearing (B) 14 ½ stub-tooth 2. Broadest at the base and strongest in bending (C) 25 Full-depth system 3. Obsolete (D) 20 Full-depth 4. Standards for new applications  

1.  4          3          2          1

2.  3          1          2          4

3.  3          2          1          4

4.  4          2          3          1

View Answer  
4
Correct Answer :

4          2          3          1


Explanation :
No Explanation available for this question

The tooth profile most commonly used in gear drives for power transmission is

1.  A cycloid

2.  Involutes

3.  An ellipse

4.  A parabola

View Answer  
4
Correct Answer :

Involutes


Explanation :
No Explanation available for this question

Consider the following statements regarding the differential of an automobile 1. The speed of the crown wheel will always be the mean of the speeds of the two road wheels 2. The road wheel speeds are independent of the number of teeth on the planets 3. The difference between the speeds of the road wheels depends on the number of teeth on the planets 4. The ratio of seeds of the road wheels depends upon the number of teeth on the gear wheels attached to them and on the crown wheel Of these statements

1.  1 and 2 are correct

2.  3 and 4 are correct

3.  1 and 3 are correct

4.  2 and 4 are correct

View Answer  
4
Correct Answer :

2 and 4 are correct


Explanation :
No Explanation available for this question

A single epicyclic gear train is shown in the given figure. Wheel A is stationary. If the number of teethes on A and B are 120 and 45 respectively, then when B rotates about its own axis with speed of 27 rpm, the speed of C would be

1.  20 rpm

2.  27 3/11 rpm

3.  19 7/11 rpm

4.   100 rpm

View Answer  
4
Correct Answer :

19 7/11 rpm


Explanation :
No Explanation available for this question

The road roller shown in the given figure is being moved over an obstacle by a pull ‘P’. The value of ‘P’ required will be the minimum when it is

1.  Horizontal

2.  Vertical

3.  At 450 to the horizontal

4.  Perpendicular to the line CO

View Answer  
4
Correct Answer :

At 450 to the horizontal


Explanation :
No Explanation available for this question

A fixed gear having 100 teeth meshes with another gear having 25 teeth, the centre lines of both the gears being joined by an arm so as to form an epicyclic gear train. The number of rotations made by the smaller gear for one rotation of the arm is

1.  3

2.  4

3.  5

4.  6

View Answer  
4
Correct Answer :

5


Explanation :
No Explanation available for this question
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