UPPSC Lec'21 ME: Daily Practices Quiz. 19-Oct-2021 |_00.1
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UPPSC Lec’21 ME: Daily Practices Quiz. 19-Oct-2021

Quiz: Mechanical Engineering
Exam: UPPSC Lecturer
Topic: Miscellaneous

Each question carries 1 mark
Negative marking: 1/4 mark
Time: 6 Minutes

Q1. The ability of material to resist softening at higher temperature is known as
(a) Creep
(b) Hot tempering
(c) Hot hardness
(d) Fatigue

Q2. Addition of Nickel to Steel helps in improving
(a) Fatigue resistance
(b) Creep resistance
(c) Corrosion resistance
(d) Cost reduction

Q3. Crystal structure of aluminium is
(a) Body cantered cubic
(b) Simple hexagonal
(c) face-cantered cubic
(d) Simple trigonal

Q4. The material in which the atoms are arranged chaotically is called
(a) Amorphous material
(b) Mesomorphous material
(c) Crystalline material
(d) None of these

Q5. Consider the following statements:
1.Thermodynamics properties are the macroscopic coordinates significant only for systems existing in states of thermodynamic equilibrium.
2.Engineering thermodynamics studies about transfer and transformation energy.
3.Engineering thermodynamics studies about storage, transfer and transformation of energy.
Which of the above statements is/are true?
(a) 3 only
(b) 1 and 3
(c) 2 only
(d) 1 and 2

Q6. Match the following List-I with List-II:
List-I
A. Centrifugal fan
B. Control Volume
C. Intensive property
D. Microscopic property
List-II
1. Open system
2. Internal energy
3. Filling a tire at air station
4. Specific energy
Codes:
A B C D
(a) 4 2 1 3
(b) 1 4 3 2
(c) 1 3 4 2
(d) 3 1 2 4

Solutions

S1. Ans.(c)
Sol. The ability of material to resist softening at higher temp, is known as hot hardness.

S2. Ans.(a)
Sol. Addition of nickel in steel increase the fatigue strength.

S3. Ans.(c)
Sol.

S4. Ans.(a)
Sol. E.g. – Glass

S5. Ans (b)
Sol. Thermodynamics properties are the macroscopic coordinates significant only for systems existing in states of thermodynamic equilibrium. Engineering thermodynamics studies about storage, transfer and transformation of energy.

S6. Ans (c)
Sol.

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Published by VINAYAK KUMAR

Graduated from BIT Sindri, Postgraduated from IIT BHU Varanasi

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