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MECHANICAL ENGINEERING 1. An impulse turbine (A) Makes use of a draft tube (B) Always operates submerged (C) Converts the pressure head into velocity head through the vanes (D) Is most suited for low head installations 2. Power required to drive a centrifugal pump is directly proportional to (A) Diameter of its impeller (B) Square of diameter of its impeller (C) Cube of diameter of its impeller (D) Fourth power of diameter of its Impeller 3. The locus of the common point on the two meshing spur gears is known as (A) Addendum circle (B) Duodenum circle (C) Pitch circle (D) Base circle 4. When there is a reduction in amplitude over every cycle of vibration then the body is said to have (A) Free vibration (B) Forced vibration (C) Damped vibration (D) Natural vibration 5. For machining at high speed the tool material should have (A) Wear resistance (B) Red hardness (C) Toughness (D) All of these 6. MIG welding is (A) A gas welding process (B) An electric resistance welding process (C) A el...

GENERAL ENGINEERING 1. The probability of hitting a target from one gun 9/10, from another gun is 7/10. If both gun are fired at the same time, the probability of hitting the target is (A) 2/20 (B) 63/100 (C) 16/20 (D) 63/20 2. If the three vectors a, b and c are coplanar , then the missed product a x b. c is (A) Zero (B) Non-Zero (C) Unity (D) None of these 3. When a body hits an obstacle, the force with which it hits the obstacle depends upon its (A) average velocity (B) velocity at the instant of collision (C) initial velocity (D) all of these 4. The wavelength of visible light is of the order of (A) 1µm (B) 100 µm (C) 1mm (D) 1 Å 5. Whenever a source of sound moves towards an observer (A) the frequency heard by the observer is less than that of the source (B) the frequency heard by the observer is greater than that of the source (C) the frequency heard by the observer is unchanged (D) the wavelength of sound heard is greater than that of the sound emitted 6. Moving electric charg...

1. Two free parallel wires carrying current in the opposite directions (a) Attract each other (b) Repel each other (c) Do not effect each other (d) Get rotated to be perpendicular to each other Ans.(b) 2. All the magnetic materials looses their magnetic property when (a) Dipped in water (b) Dipped in oil (c) Brought near piece of iron (d) Strongly heated Ans.(d) 3. Potassium paramagnet is used for (a) Dechlorination (b) Improving colour (c) Reducing acidity (d) Reducing hardness Ans.(b) 4. Which of the following material has the highest carbon percentage? (a) Cast iron (b) Mild steel (c) High carbon steel (d) Stainless steel Ans.(a) 5. Which of the following paints is most fire resistant (a) Bituminous paint (b) Asbestos paint (c) Aluminum paint (d) Synthetic paint Ans.(b) 6. The gas which is mainly responsible for the explosion in sewers is (a) Methane (b) Ethane (c) Ammonia (d) Carbon- monoxide Ans.(d) 7. The Wind screen of car made of (a) Sheet glass (b) Wired glass (c) Laminated gl...

1. The resultant force acting on a body will be zero if the body (a) Rotate with uniform deceleration (b) Rotate with uniform acceleration (c) Does not rotate (d) Rotates Ans: (c) 2. The movement of a force (a) Occurs about a point (b) Measures the capacity to do useful work (c) Occurs only when bodies are in motion (d) Measures the ability to produce turning or twisting about an axis Ans: (d) 3. After reaching the yielding stage while testing a mild steel specimen strain (a) Becomes constant (b) Strain start decreasing (c) Increasing without any increase in load (d) Non of the above Ans: (c) 4. Volumetric strain for a rectangular of length L, breadth B, and thickness T subjected to a pull of P is given by (a) e (1-2m) (b) e (1-2/m) (c) e (m-2) (d) e (2/M-1) Ans: (b) 5. The mechanism used in petrol engine is (a) Crank mechanism (b) Slider mechanism (c) Slider crank mechanism (d) Natural lines and circular Ans: (c) 6. M 10 screws have a pitch of (a) 0.5 mm (b) 1.25 mm (c) 2.50 mm (d) 5....