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SSC JE 2019 - 20 technical Quiz 67

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Question 1

Disposable patterns are made of

Question 2

The ductility of a material with work hardening

Question 3

Two plates of the same metal having equal thickness are to be butt welded with electric arc. When the plate thickness changes, welding is achieved by

Question 4

In case of a multiple disc clutch, if n₁ is the number of discs on the driving shaft and n₂ is the number of discs on the driven shaft, then what is the number of pairs of contact surfaces?

Question 5

The initial feasible solution to a transportation model problem can be determined by the application of which of the following methods.

Question 6

Morse test is carried out to determine ..... of an engine:

Question 7

A jet of oil with relative density 0.7 strikes normally a plate with a velocity of 10 m/s. The jet has an area of 0.03 m2. The force exerted on the plate by the jet is

Question 8

A 3-stage reciprocating compressor has suction pressure of 1 bar delivery pressure of 27 bar. For minimum work of compression, the delivery pressure of 1st stage is

Question 9

Nusselt number signifies the ratio of

Question 10

A vapour compression refrigerator has a COP of 4 and extracts 10 kJ of heat from the cold reservoir. If this machine is worked as a heat pump, how much heat will it deliver to the environment?

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May 21ESE & GATE ME