ISRO tech Placement Paper
ISRO PAPER ON 22nd APRIL AT CHENNAI
Time: 90 min
Branch: Mechanical Engineering
Total No of Questions: 80
For correct answer: 3 marks
Wrong answer: -1 marks.
I will give only the harder questions as many as i remember.... I think there is no point in listing the dummy problems
1) Vander wal's equation (We have to pick up the right answer from four choices)
2)To a heat engine a constant heat is supplied at 300kJ at 290 C and heat is rejected at 8.5 C. What is the heat rejected?
Ans : 150kJ
3)What is shrinkage allowance?
The dimensional allowance which must be made in molds to compensate for shrinkage of the plastic compound on cooling
4)Where spining operation is done?
Lathe
5) What is the maximum height of a siphon?
6)Time bound varying material is called?
7)There are two bodies, one with high mass another with low mass. Both are having same kinetic energy. Their momentum will be?
a) Both the momumtum will be equal b) Body of large mass will have high momentum. c)b) Body of low mass will have high momentum d)It depends uopn the velocities
8)Ratio of kinetic energies of two bodies is 1 : 4, The what is the ratio of their momentum?
9)What is the notch angle of izod impact test?
10) For a given nozzle angle and number of rows in the turbine, what is the optimum blade speed ratio?
11) A question on manometer with diagram
12) Two reservoirs are connected by a pipe of diameter D. Due to the chemical deposition the diameter is reduced by 20%. Neglect the frictional losses. How will the discharge will vary?
13)Around 10 questions on very basics of Matrices, Eigen values, Laplace.
14)A question on the position of metacenter
15) Match the following on Reynolds, weber, prandtl no
16) Problem on bulk modulus
17)What is the total volume change in a cylinderical vessel if strain e1 acts along longitudinal and stain e2 acts along tangential direction?
18)A question on belt friction
19)A turbine of periperal velocity V is designed for 100m head. what will be the periperal velocity of a turbine if the head is 800m?
No question was asked from Refrigeration and airconditioning
Home Remedies to INCREASE HEIGHT AND WEIGHT
* Health & Beauty
INCREASE HEIGHT AND WEIGHT
The bone structure must remain elastic if one is to become taller. One must take exercise regularly. I suggest the following exercises will help one gain height:
(i) Stand in an open space in attention position. In hale deeply through the nose and extend yours arms lifting then slowly up to your shoulders. Keep your arms straight. Hold that position for
some time and then take the arms backwards as far as they will go. No inhale again the release your breath slowly, resuming the former position.
(ii) Stand with your arms straight at right angles to your body. Lift the arms vertically and then bring them to the level of the shoulders. Do not exhale in the process, but stand on your toes, lifting your heels as far as they will go. Exhale slowly after some moments and resume the earlier position.
(iii) Extend your arms forward up to the level of the shoulders. Inhale and fill your lungs to about one-third of their capacity. Wait for a few moments and then take your arms above your head. Now move them in a circular motion-taking them behind your back and in the former position again. Exhale slowly.
How can one increase weight?
Take to a diet for three to four days. Take 100 to 150 grams of bran with the fruits. The best way will be to mix bran with a fruit like papaya. It will increase appetite, improve the digestion and remove costiveness, if any. One will tend to eat more and the capacity to assimilate food will be increased.
Foods like flour, rice honey, raisins, figs, dates, butter, and etc. can help increase weight. Sweat substances can increase weight than fatty foods. Those wishing to increase their weight should become pure vegetarians and eat fruits, rice, flour, fresh vegetables, bananas, dry fruits, butter, and milk. Germinated wheat is also extremely beneficial if taken in the form of gruel mixed with hot
milk.
Take plenty of water, exercise and fast once a week
INCREASE HEIGHT AND WEIGHT
The bone structure must remain elastic if one is to become taller. One must take exercise regularly. I suggest the following exercises will help one gain height:
(i) Stand in an open space in attention position. In hale deeply through the nose and extend yours arms lifting then slowly up to your shoulders. Keep your arms straight. Hold that position for
some time and then take the arms backwards as far as they will go. No inhale again the release your breath slowly, resuming the former position.
(ii) Stand with your arms straight at right angles to your body. Lift the arms vertically and then bring them to the level of the shoulders. Do not exhale in the process, but stand on your toes, lifting your heels as far as they will go. Exhale slowly after some moments and resume the earlier position.
(iii) Extend your arms forward up to the level of the shoulders. Inhale and fill your lungs to about one-third of their capacity. Wait for a few moments and then take your arms above your head. Now move them in a circular motion-taking them behind your back and in the former position again. Exhale slowly.
How can one increase weight?
Take to a diet for three to four days. Take 100 to 150 grams of bran with the fruits. The best way will be to mix bran with a fruit like papaya. It will increase appetite, improve the digestion and remove costiveness, if any. One will tend to eat more and the capacity to assimilate food will be increased.
Foods like flour, rice honey, raisins, figs, dates, butter, and etc. can help increase weight. Sweat substances can increase weight than fatty foods. Those wishing to increase their weight should become pure vegetarians and eat fruits, rice, flour, fresh vegetables, bananas, dry fruits, butter, and milk. Germinated wheat is also extremely beneficial if taken in the form of gruel mixed with hot
milk.
Take plenty of water, exercise and fast once a week
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