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BARC OCES 2022 Quiz 12

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Question 1

A submarine is rolling under seawater whose radius of gyration is 12 m and period of oscillation of rolling of ship is 22 seconds then nearest metacentric height in metres is ______

Question 2

Circumferential and longitudinal strain in cylindrical bolier under internal steam pressure are $Description: Description: E:\Gate\SSC JE Mechanical Part 1\Made Easy Questions\04_SOM_BLok_files\image038.png$ and $Description: Description: E:\Gate\SSC JE Mechanical Part 1\Made Easy Questions\04_SOM_BLok_files\image039.png$ respectively, Change in volume of the bolier cylinder per unit volume will be

Question 3

If a mass of moist air in an airtight vessel is heated to a higher temperature, then

Question 4

Two sheets of low carbon steel 2 mm thick each are spot welded by passing a current 12000 A for 5 cycles in 50 Hz main supply. Heat generated due to the supply of power if effective resistance has 200 micro ohms will be

Question 5

A mass spring dashpot system with mass m = 10kg, spring constant k=6250N/m is excited by a harmonic excitation of 10cos (25t). At steady condition, the vibration amplitude of the mass is 40mm. The damping coefficient (c, in Ns/m) of the dashpot will be

Question 6

Two 1 mm thick steel sheets are to be spot welded at a current of 5000 A. Assuming effective resistance to be 200 micro-ohms and current flow time of 0.2 second, heat generated during the process will be _________.

Question 7

A hollow shaft of 2m length is designed to transmit a power of 25 KW at 500 rpm. The maximum permissible angle of twist in the shaft is 1^o.The inner diameter of the shaft is 0.8 times the outer diameter. The modulus of rigidity is 100 GPa. The outside diameter (in mm) of the shaft is

Question 8

For a product, the forecast and the actual sales for December 2002 were 25 and 20 respectively. If the exponential smoothing constant (α) is taken as 0.2, the forecast sales for January 2003 would be

Question 9

An opening at the top of the mould that is connected to the mould cavity through runners from which the molten metal is poured is known as?

Question 10

A local tyre distributor expects to sell approximately 9600 steel belted radial tyres next year. Annual carrying cost in Rs. 16 per tyre and ordering cost is Rs. 75. The economic order quantity of the tyres is

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Mar 20ESE & GATE ME