ISRO Scientist or Engineer Refrigeration & Air-Conditioning 2015

Instructions

For the following questions answer them individually

Question 71

300 kJ/s of heat is supplied at constant temperature of 500 k to a heat engine. The heat rejection takes place at 300 K. The following results are obtained (a) 210 kJ (b) 180 kJ
(c) 150 kJ. Identify whether result is a reversible cycle, irreversible cycle or impossible cycle respectively

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Question 72

If cube root of unity are $$1, w, w^2$$ then the roots of equation $$(x - 1)^3 + 8 = 0$$ are

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Question 73

If $$1, w, w^2$$ are cube roots of unity then the value of

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Question 74

Three houses are available in a locality. Three persons apply for the houses. Each applies for one house without consulting others. The probability that all the three apply for the same house is

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Question 75

The rank of the matrix $$A = \begin{bmatrix}-2 & 4 & 2\\3 & -4 & -1\\4 & -3 & 1 \end{bmatrix}$$ is

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Question 76

If $$3e^x \tan ydx + (1 - e^x) \sec^2 ydy = 0$$, then $$y$$ is

Video Solution

Question 77

Which of the following represents a wave equation?

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Question 78

$$1 + \frac{x^2}{2!} + \frac{x^4}{4!} + \frac{x^6}{6!} + .........$$ stands for

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Question 79

$$\int \sec x dx$$ is

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Question 80

Inverse Laplace transform of $$\frac{S}{S^2} + a^2$$ is

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ISRO Scientist or Engineer Refrigeration & Air-Conditioning 2015

300 kJ/s of heat is supplied at constant temperature of 500 k to a heat engine. The heat rejection takes place at 300 K. The following results are obtained (a) 210 kJ (b) 180 kJ(c) 150 kJ. Identify whether result is a reversible cycle, irreversible cycle or impossible cycle respectively

If cube root of unity are $$1, w, w^2$$ then the roots of equation $$(x - 1)^3 + 8 = 0$$ are

If $$1, w, w^2$$ are cube roots of unity then the value of

Three houses are available in a locality. Three persons apply for the houses. Each applies for one house without consulting others. The probability that all the three apply for the same house is

The rank of the matrix $$A = \begin{bmatrix}-2 & 4 & 2\\3 & -4 & -1\\4 & -3 & 1 \end{bmatrix}$$ is

If $$3e^x \tan ydx + (1 - e^x) \sec^2 ydy = 0$$, then $$y$$ is

Which of the following represents a wave equation?

$$1 + \frac{x^2}{2!} + \frac{x^4}{4!} + \frac{x^6}{6!} + .........$$ stands for

$$\int \sec x dx$$ is

Inverse Laplace transform of $$\frac{S}{S^2} + a^2$$ is

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CAT Quant Questions | CAT Quantitative Ability

CAT DILR Questions | LRDI Questions For CAT

CAT Verbal Ability Questions | VARC Questions For CAT

300 kJ/s of heat is supplied at constant temperature of 500 k to a heat engine. The heat rejection takes place at 300 K. The following results are obtained (a) 210 kJ (b) 180 kJ
(c) 150 kJ. Identify whether result is a reversible cycle, irreversible cycle or impossible cycle respectively