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SSC JE 2019-20: Technical Quiz 4

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Question 1

A beam of square section 200 mm × 200 mm is fixed as a cantilever of span 3 m. How much UDL can be applied through out the length of beam if maximum stress is not to exceed 5 N/mm2______.

Question 2

Which one of the following statements is correct?

Question 3

A carnot engine operates between and . If the engine produces 300 kJ of work, the entropy change during heat additions is

Question 4

A furnace wall is 10 cm thick and has a thermal conductivity of 0.1 kw/m-k. Inner temperature is maintained at 5250C, while the surrounding temperature outside the furnace is 250C. If thesurface area of the furnace is 20 m2 the heat flux through the wall is

Question 5

if, ‘A’ is the cross-sectional area and ‘P’ is the wetted perimeter of a pipe surface,
The formula for hydraulic diameter is______

Question 6

A fluid flows through a horizontal pipe of 3 cm diameter. When the Reynold’s number is 1500 and fluid velocity is 2m/s, the head loss over a length of 10m is

(Take g = 10m/)

Question 7

If the taylor’s tool life exponent ‘n’ is 0.4 and the tool changing time is 2 min. The tool life (in seconds) for maximum production rate is

Question 8

In Abrasive jet machining, work piece material of removed by which of the following means?

Question 9

The alloy used in nuclear reactor structures is:

Question 10

This reversible cycle consist of constant volume heat addition, reversible adiabatic expansion and constant pressure heat rejection
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Jul 11ESE & GATE ME