SSC JE Mechanical Engineering 22nd Jan 2018 Shift-2

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For the following questions answer them individually
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SSC JE Mechanical Engineering 22nd Jan 2018 Shift-2 - Question 33

In a certain code language, '$$+$$' represents '$$-$$', '$$-$$' represents '$$\times$$', '$$\times$$' represents '$$\div$$' and '$$\div$$' represents '$$+$$'. Find out the answer to the following question.
$$100 \times 5 + 15 - 12 \div 6 = ?$$

SSC JE Mechanical Engineering 22nd Jan 2018 Shift-2 - Question 38

A plane takes off and flies 30 km South. Then it turns East and flies 10 km, then it turns to its left and flies 25 km, then it turns and flies 10 km towards West. Where is the plane now with respect to its starting position?

SSC JE Mechanical Engineering 22nd Jan 2018 Shift-2 - Question 39

Two motorcycle riders start from the same point. Rider A goes 15 km North then turns to his right and rides for another 8 km. Rider B goes 9 km West, then turns North and rides for 4 km and then turns to his right and rides 17 km. Where is rider A with respect to rider B?

SSC JE Mechanical Engineering 22nd Jan 2018 Shift-2 - Question 40

In the question two statements are given, followed by two conclusions, I and II. You have to consider the statements to be true even if it seems to be at variance from commonly known facts. You have to decide which of the given conclusions, if any, follows from the given statements.
Statement I: No students are scholars
Statement II: No students are teachers
Conclusion I: Some teachers are scholars
Conclusion II: All scholars are teachers

SSC JE Mechanical Engineering 22nd Jan 2018 Shift-2 - Question 41

In the question three statements are given, followed by three conclusions, I, II and III. You have to consider the statements to be true even if it seems to be at variance from commonly known facts. You have to decide which of the given conclusions, if any, follows from the given statements.
Statement I: All cotton is cloth
Statement II: All cotton is shirts
Statement III: Some cotton is woven
Conclusion I: Some woven is shirts
Conclusion II: Some cloth is woven
Conclusion III: All cloth is shirts

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SSC JE Mechanical Engineering 22nd Jan 2018 Shift-2 - Question 50

A word is represented by only one set of numbers as given in any one of the alternatives. The sets of numbers given in the alternatives are represented by two classes of alphabets as shown in the given two matrices, The columns and rows of Matrix-I are numbered from 0 to 4 and that of Matrix-II are numbered from 5 to 9. A letter from these matrices can be represented first by its row and next by its column, for example 'P' can be represented by 79, 59 etc and 'I' can be represented by 31, 20 etc. Similarly, you have to identify the set for the word 'TURF'.

SSC JE Mechanical Engineering 22nd Jan 2018 Shift-2 - Question 59

The 100th amendment in Indian Constitution provides ___________.

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SSC JE Mechanical Engineering 22nd Jan 2018 Shift-2 - Question 89

Which of the following statements are CORRECT?
I. Force applied on the conductor depends on magnitude of current.
II. Force applied on the conductor depends on magnitude of magnetic field strength.
III. Force applied on the conductor depends on the direction of current.

SSC JE Mechanical Engineering 22nd Jan 2018 Shift-2 - Question 105

Which term defines the fluctuation of speed of a flywheelin terms of angular speeds?

SSC JE Mechanical Engineering 22nd Jan 2018 Shift-2 - Question 106

What is the velocity ratio for a slip in the belt drive system?

SSC JE Mechanical Engineering 22nd Jan 2018 Shift-2 - Question 114

Which ratio defines the height of a porter governor to that of the watt governor for equal arm and link lengths, where m is the massof the ball and M is the massof the sleeve?

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SSC JE Mechanical Engineering 22nd Jan 2018 Shift-2 - Question 123

Which is the CORRECT reason for the 5%-10%oferror in Euler's crippling load, when estimated theoretically?

SSC JE Mechanical Engineering 22nd Jan 2018 Shift-2 - Question 125

What will be the thermal stress developed in a rod having a diametre of 4 cm and length of 2 m-.It experiences heating from temperature $$50^\circ C$$ to $$200^\circ C$$. The coefficient of thermal expansion is $$\alpha = 10 \times 10^{-6}/^\circ C$$ and young’s modulus is 250 GPa?

SSC JE Mechanical Engineering 22nd Jan 2018 Shift-2 - Question 128

Which formula CORRECTLY depicts the elongation in a composite body?

SSC JE Mechanical Engineering 22nd Jan 2018 Shift-2 - Question 134

For a heat pump, the second law ofefficiency can be written in the form ............

SSC JE Mechanical Engineering 22nd Jan 2018 Shift-2 - Question 141

Which of the following statement is TRUE for work output of an ideal Otto cycle?

SSC JE Mechanical Engineering 22nd Jan 2018 Shift-2 - Question 143

If a heat engine produces work without the consumption of energy, then what kind of machine is this?

SSC JE Mechanical Engineering 22nd Jan 2018 Shift-2 - Question 158

Jig bushes are

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SSC JE Mechanical Engineering 22nd Jan 2018 Shift-2 - Question 163

Heat pump is a device which

SSC JE Mechanical Engineering 22nd Jan 2018 Shift-2 - Question 166

In a polytropic process
(a) $$\frac{T_1}{T_2} = \left(\frac{V_2}{V_1}\right)^{n - \frac{1}{n}} = \left(\frac{p_1}{p_2}\right)^{n - 1}$$
(b) $$\frac{T_1}{T_2} = \left(\frac{V_2}{V_1}\right)^{n - 1} = \left(\frac{p_1}{p_2}\right)^{n}$$
(c) $$\frac{T_1}{T_2} = \left(\frac{V_2}{V_1}\right)^{n - 1} = \left(\frac{p_2}{p_1}\right)^{n - 1}$$
(d) $$\frac{T_1}{T_2} = \left(\frac{V_2}{V_1}\right)^{n - 1} = \left(\frac{p_2}{p_1}\right)^{n - \frac{1}{n}}$$

SSC JE Mechanical Engineering 22nd Jan 2018 Shift-2 - Question 169

Which one of the following phenomena occurs whengasin a piston-in-cylinder assembly expands reversibly at constant pressure?

SSC JE Mechanical Engineering 22nd Jan 2018 Shift-2 - Question 187

Considerthe following equations:
1. $$A_1V_1 = A_2V_2$$
2. $$\frac{\partial u}{\partial x} + \frac{\partial v}{\partial y} = 0$$
3. $$\int_{s} pv.dA + \frac{\partial}{\partial t} \int_{v} pdV = 0$$
4. $$\frac{1}{r} \frac{\partial}{\partial r}(rv_r) + \frac{\partial}{\partial z}(v_s) = 0$$

SSC JE Mechanical Engineering 22nd Jan 2018 Shift-2 - Question 188

Two pumpscan operate independently at heads $$H_1, H_2$$ and discharges $$Q_1, Q_2$$, respectively. If the pumps are connected in parallel, then what are the resulting discharge (Q) and head (H)?

SSC JE Mechanical Engineering 22nd Jan 2018 Shift-2 - Question 198

The figure given below shows the relationship between power (P) and discharge (Q) for different vane exit angles of centrifugal pump. In the figure given below, curve C holds good for:

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