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ISRO 2018 Manufacturing Booster Quiz 3

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Question 1

Fluidity in casting (CI) operation is greatly influenced by

Question 2

Match list I (welding effects) with list II (causes) and select the correct answer using the codes given below the lists:
List - I (Welding defects)
A) Spatter
B) Distortion
C) Slag inclusion
D) Porosity
List - II( Causes)
1. Wet electrodes
2. Arc blow
3. Improper cleaning in multipass welding
4. Poor joint selection

Question 3

Following is a process used to form powder metal to shape

Question 4

In a single point turning operation with a cemented carbide and steel combination having a Taylor exponent of 0.25, if the cutting speed is halved, then tool life will become _____.

Question 5

Match List-I (Machining Process) with List-II (Associated Moderate) and select the correct answer using the codes give below

List-I

A. Ultrasonic machining

B. EDM

C. ECM

D. EBM
List-II

1) Kerosene

2) Abrasive slurry

3) Vacuum

4) Salt solution

Question 6

The force required to punch a 25 mm hole in mild steel plate 10 mm thick, when ultimate shear stress of the plate is 500 N/mm² will be nearly __________.

Question 7

operation where enlarging a hole by means of adjustable cutting tools with only one cutting edge is

Question 8

A body which is permanently deformed is said to have undergone

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ESE & GATE ME Manufacturing & Engg materials

Sep 21ESE & GATE ME