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As per Indian Standard IS 3196 Part1 for the product Welded low carbon steel cylinders exceeding 5 litres water capacity for low-pressure liquefiable gases, various tests are conducted to check for leakages in LPG Cylinders. Which test is performed to check the leaks of LPG cylinders by filling them with water under pressure?

Burst test

Hydrostatic test

Pneumatic leakage test

Radiographic examination

Indian Standard 4246 specifies construction, operation, safety requirements and tests for domestic gas stoves with metallic bodies with or without toughened glass top intended for use with liquefied petroleum gas. What is the maximum consumption rate of burner at Sim position

A)For burners upto 60 1/h gas rate, 40 percent or 22 1/h of the rated capacity whichever is higher; b) For burners between 60 1/h to 80 1/h gas rate, 30 percent or 241/h of the rated capacity whichever is higher; and c) For burners above 80 1/h gas rate, 30 percent or 28 1/h of the rated capacity whichever is higher.’

A) For burners upto 60 1/h gas rate, 35percent or 21 1/h of the rated capacity whichever is higher; b) For burners between 60 1/h to 80 1/h gas rate, 40 percent or 22.51/h of the rated capacity whichever is higher; and c) For burners above 80 1/h gas rate, 25 percent or 27 1/h of the rated capacity whichever is higher.’

A) For burners upto 60 1/h gas rate, 38 percent or 24 1/h of the rated capacity whichever is higher; b) For burners between 60 1/h to 80 1/h gas rate, 27 percent or 251/h of the rated capacity whichever is higher; and c) For burners above 80 1/h gas rate, 35 percent or 30 1/h of the rated capacity whichever is higher.’

A) For burners upto 60 1/h gas rate, 30 percent or 21 1/h of the rated capacity whichever is higher; b) For burners between 60 1/h to 80 1/h gas rate, 32 percent or 221/h of the rated capacity whichever is higher; and c) For burners above 80 1/h gas rate, 35 percent or 26 1/h of the rated capacity whichever is higher.’

Opening a lid of Domestic Pressure Cooker immediately after cooking may cause safety concerns as the pressure inside cooker may result in explosion of steam. How does Indian Standards, IS 2347:2023 for Domestic Pressure Cooker addresses this safety concern?

IS 2347:2023 specifies a requirement where the lid of cooker cannot be opened at pressure above 0.18 kg/cm2 with 12 kg force acting on the handle.

IS 2347:2023 does not address this safety concern.

IS 2347:2023 specifies instructions not to open lid under pressure to address this safety concern.

IS 2347:2023 specifies cooking without water to avoid steam.

Indian Standard, IS 1293:2019 specifies requirements of Plugs and Socket-Outlets for household and similar purposes.

Statement1: Class I- An appliance in which

protection against electric shock does not rely on basic

insulation only, but which includes an additional safety

precaution in that accessible conductive parts are

connected to the protective earthing conductor in the

fixed wiring of the installation in such a way that

accessible conductive parts cannot become live in the

event of a failure of the basic insulations.

Statement 2: Class II-An appliance in which

protection against electric shock does not rely on basic

insulation, only, but in which additional safety

precautions, such as, double insulation or reinforced

insulation are provided, there being no provision for

protective earthing or reliance upon installation

condition.

Both are true

Both are false

Statement 1 is true, but Statement 2 is false.

Statement 1 is false, but Statement 2 true.

IS 4985:2021 includes various tests such as opacity, reversion, Vicat softening temperature, density, sulphated ash content, resistance to external blows etc. Which other test is performed to ensure the quality and the safety aspects of the pipe?

Internal Hydrostatic Pressure Test

Slip Resistance test

Torque test

Resolution Test

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