SSC JE Electrical Engineering 22nd Jan 2018 Shift-1

Instructions

For the following questions answer them individually

Question 181

The spaceto heightratio in illumination lies between

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Question 182

Moulded casecircuit breaker is used for

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Question 183

Which of the following will need lowest level of illumination?

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Question 184

A mercury vapour lamp gives

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Question 185

Heat is transferred simultaneously by conduction, convection and radiation .........

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Question 186

Heavy-duty steel-works cranes having wide load variations are equipped with

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Question 187

In induction heating

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Question 188

The depth of penetration , in the case hardening of a steel pulley, required is 105mm. The relative permeability is unity and the specific resistance for steel is $$5 \times 10^{-7}$$ Ω-m. Determine the frequency required.

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Question 189

When an electron breaks a covalent bond, and moves away

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Question 190

A zener diodeis invariably used with

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