Q. For a hydraulic lift with dimensions shown in figure, assuming g = 10 m/s 2 , the maximum diameter Dleft (in m) that lifts a vehicle of mass 1000 kg using a force of 100 N is__________________(rounded off to two decimal places). Solution: Using pascals principle, pressure on both sides must be equal pressure […]
Q. In petroleum refining operations, the process used for converting paraffins and naphthenes to aromatics is (A) alkylation (B) catalytic reforming (C) hydrocracking (D) isomerization Ans: (B) catalytic reforming Catalytic reforming is the process used in petroleum refining operations to convert paraffins and naphthenes (saturated hydrocarbons) into aromatics (unsaturated hydrocarbons with a ring structure). It
Q. In Kraft process, the essential chemical reagents used in the digester are (A) caustic soda, mercaptans and ethylene oxide (B) caustic soda, sodium sulphide and soda ash (C) quick lime, salt cake and dimethyl sulphide (D) baking soda, sodium sulphide and mercaptans Ans: caustic soda, sodium sulphide and soda as
In Kraft process, the essential chemical reagents used in the digester are Read More »
Q. Producer gas is obtained by (A) passing air through red hot coke (B) thermal cracking of naphtha (C) passing steam through red hot coke (D) passing air and steam through red hot coke Ans: passing air and steam through red hot coke Producer gas is obtained by passing a mixture of air and steam
Producer gas is obtained by Read More »
Q. In the drying of non-dissolving solids at constant drying conditions, the internal movement of moisture in the solid has a dominant effect on the drying rate during (A) the initial adjustment period only (B) the constant rate period only (C) the falling rate period only (D) both the initial adjustment and constant rate periods
Q. A thermocouple senses temperature based on the (A) Nernst Effect (B) Maxwell Effect (C) Seebeck Effect (D) Peltier Effect Ans: Seebeck Effect Solution: (C) Seebeck Effect A thermocouple senses temperature based on the Seebeck Effect. The Seebeck Effect is a phenomenon in which a temperature difference between two dissimilar conductors or semiconductors generates an
A thermocouple senses temperature based on the Read More »
Q. Three of the five students allocated to a hostel put in special requests to the warden. Given the floor plan of the vacant rooms, select the allocation plan that will accommodate all their requests. Request by X: Due to pollen allergy, I want to avoid a wing next to the garden. Request by Y:
Q. In a college, there are three student clubs. Sixty students are only in the Drama club, 80 students are only in the Dance club, 30 students are only in the Maths club, 40 students are in both Drama and Dance clubs, 12 students are in both Dance and Maths clubs, 7 students are in
Q. “A recent High Court judgement has sought to dispel the idea of begging as a disease — which leads to its stigmatization and criminalization — and to regard it as a symptom. The underlying disease is the failure of the state to protect citizens who fall through the social security net.” Which one of
Q. In the given diagram, teachers are represented in the triangle, researchers in the circle and administrators in the rectangle. Out of the total number of the people, the percentage of administrators shall be in the range of A. 0 to 15 B. 16 to 30 C. 31 to 45 D. 46 to 60 Ans:
