UPRVUNL'21 ME: Daily Practices Quiz. 24-Aug-2021 |_00.1
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UPRVUNL’21 ME: Daily Practices Quiz. 24-Aug-2021

Quiz: Mechanical Engineering
Exam: UPRVUNL
Topic: Miscellaneous

Each question carries 1 mark
Negative marking: 1/4 mark
Time: 8 Minutes

Q1. Large size bolt heads are manufactured by the process
(a) Hammering
(b) Casting
(c) Swaging
(d) Upset-forging

Q2. The material by which Anvil is made of?
(a) Mild steel
(b) Cast steel
(c) Copper
(d) Brass

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

Q4. A cotter joint is used to:
(a) Transmit axial tensile load only
(b) Transmit axial compressive load only
(c) Transmit combined axial and twisting load
(d) Transmit axial tensile and compressive loads

Q5. The effect pinch in welding is the result of-
(a) Surface tension of the molten metal
(b) Shielding gases
(c) Expansion of gases in the arc
(d) Electromagnetic forces

Q6. The welding process which uses non-consumable electrode, is
(a) TIG welding
(b) MIG welding
(c) Laser welding
(d) Electroslag welding

Solutions
S1. Ans(d)
Sol. Large size head bolts are manufactured by the technique of UPSET FORGING.
S2. Ans(b)
Sol.
S3. Ans.(c)
Sol.
S4. Ans.(d)
Sol. A cotter joint subjected to tensile and compressive loads
S5. Ans(d)
Sol. A pinch welding gives narrow and long flame which is concentrated on desired part, it is achieving by an induction coil, which results in electromagnetic forces
S6. Ans(a)
Sol. TIG welding used a tungsten non-consumable electrode.

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Published by VINAYAK KUMAR

Graduated from BIT Sindri, Postgraduated from IIT BHU Varanasi

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