GATE XE year:2023 PYQs & Answers — Page 16

Questions 151–160 of 175. Imported answers require independent review unless marked reviewed.

If D₁₀ for Salmonella in egg yolk is 0.75 kGy, calculate the radiation dose in kGy (rounded off to 2 decimal places) required for reducing the Salmonella count in egg yolk by 8 log cycles.

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The average moisture binding energy of a plant protein based snack at 8% moisture content (dry basis) is 3200 cal.mol⁻¹. If the water activity of the snack at the above moisture content is 0.30 at 30 °C, the water activity of the same at 45 °C is __________ (rounded off to 2 decimal places). The value of Gas constant R = 1.987 cal.mol⁻¹.K⁻¹.

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Cow milk is pasteurized at a flow rate of 1 kg.s⁻¹ in a counter-current heat exchanger using hot water as the heating medium. The milk enters the heat exchanger at 15 °C and exits at 50 °C. The specific heat of cow milk is 3.5 kJ.kg⁻¹.°C⁻¹ and remains constant at the inlet and exit of the heat exchanger. The inlet and exit temperatures of the hot water are 75 °C and 60 °C respectively. If the overall heat transfer coefficient is 1800 W.m⁻².°C⁻¹, the heat transfer surface area in m² is _____ (rounded off to 2 decimal places). Assume steady state conditions.

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The net water level elevation near the coast arising due to a tropical-cyclone-induced storm is a combination of the following factors __________.

Your answerChoose one option.

astronomical tides, and distant cyclonic storm

wind-induced waves, astronomical tides, and distant cyclonic storm

astronomical tides, coastal currents, and distant cyclonic storm

riverine flow, astronomical tides, and distant cyclonic storm

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The typical speeds of a tsunami wave in water depths of 10 m, 100 m, and 1000 m, respectively, are ______.

Your answerChoose one option.

approximately 100 m s⁻¹, 31 m s⁻¹ and 10 m s⁻¹

approximately 50 m s⁻¹, 75 m s⁻¹ and 100 m s⁻¹

approximately 10 m s⁻¹, 31 m s⁻¹ and 100 m s⁻¹

approximately 100 m s⁻¹, 10 m s⁻¹ and 31 m s⁻¹

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Which classification of tides best represents the west coast of India?

Your answerChoose one option.

Diurnal and Mixed

Semidiurnal and Mixed

only Diurnal

only Mixed

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The variation in geostrophic winds with height, in particular, at the atmospheric boundary layer, considering the variation in pressure gradient as a function of height, is referred to as ________.

Your answerChoose one option.

Isobaric winds

Gradient winds

Thermal winds

Cyclostrophic winds

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Consider the following options and pick out the right choice. The solubility of a gas in sea water increases with ________.

Your answerChoose one option.

the increase of temperature, salinity and pressure

the decrease of temperature, salinity and pressure

the increase of temperature, and the decrease of salinity and pressure

the decrease of temperature and salinity, and the increase of pressure

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From the list given below, identify the organism type in the biological pump that takes up carbon dioxide from the atmosphere into the ocean.

Your answerChoose one option.

Zooplankton

Fish

Phytoplankton

Radiolarians

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The amount of CO₂ that can be absorbed ________ when the temperature of seawater decreases.

Your answerChoose one option.

Remains the same

Increases

Decreases

Can either increase or decrease

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GATE XE year:2023 PYQs

Question 151

Question 152

Question 153

Question 154

Question 155

Question 156

Question 157

Question 158

Question 159

Question 160