Chemical Engineering Basics

Question: Buoyancy force depends on the __________ the liquid. [A]. depth of immersion in [B]. displaced mass of [C]. surface tension of [D]. viscosity of Answer: Option B Explanation: No answer description available for this question.

Question: __________ forces do not act in case of fluids. [A]. Vibratory [B]. Centrifugal [C]. Elastic [D]. Tensile Answer: Option D Explanation: No answer description available for this question.

Question: A floating body oscillates about its __________ when it is displaced slightly. [A]. centre of gravity [B]. metacentre [C]. centre of buoyancy [D]. centre of pressure Answer: Option B Explanation: No answer description available for this question.

Question: __________ fluid force is not considered in the Navier-Stokes equation. [A]. Turbulent [B]. Viscous [C]. Gravity [D]. Pressure Answer: Option A Explanation: No answer description available for this question.

Question: A dummy activity is used in PERT network to describe the [A]. precedence relationship. [B]. resource idleness. [C]. resource restriction. [D]. necessary time delay. Answer: Option A Explanation: No answer description available for this question.

Question: If the demand for an item is trebled and the order cost is reduced to one third, then the economic order quantity [A]. is trebled. [B]. remains unchanged. [C]. decreases by a factor of 3. [D]. decreases by a factor of 1/3. Answer: Option B Explanation: No answer description available for this question.

Question: Auto collimator is used to check [A]. flatness [B]. angle [C]. rotor balancing [D]. roughness Answer: Option B Explanation: No answer description available for this question.

Question: Heat dissipation in cooling towers is mainly by [A]. conduction [B]. convection [C]. evaporation [D]. radiation Answer: Option C Explanation: No answer description available for this question.

Question: Calorific value of __________ are almost same. [A]. lignite & anthracite coal [B]. lignite & coal gas [C]. petrol & diesel [D]. coal gas & natural gas Answer: Option C Explanation: No answer description available for this question.

Question: Air standard Otto cycle is more efficient than the diesel cycle for the same [A]. heat addition & compression ratio. [B]. heat addition & pressure. [C]. compression ratio & pressure. [D]. cylinder dimension & rpm. Answer: Option A Explanation: No answer description available for this question.