**Manometer is used to measure**

1) Pressure

2) Gravity

3) Humidity

4) Volume

**Ans:- **1) Pressure

**Calorie is the unit of**

1) Temperature

2) Heat

3) Power

4) Energy

**Ans:- **2) Heat

**A straight rod partially immersed in water seems bent. Its reason is**

1) Refraction

2) Reflection

3) Different temperature of water levels

4) High pressure of water at the bottom

**Ans:- **1) Refraction

**Which law states that a liquid inside a closed system exerts equal pressure in all directions?**

1) Boyle’s law

2) Pascal’s law

3) Graham’s law

4) Gay – Lussac’s law

Ans:- 2) Pascal’s law

**An electro-magnet is made of**

1) Soft iron

2) Copper

3) Hard Steel

4) Zinc

Ans:- 1) Soft iron

**Only two elements are in liquid state at room temperature. They are**

1) Bromine, Iodine

2) Hafnium, Mercury

3) Bromine, Mercury

4) None of these

Ans:- 3) Bromine, Mercury

**A stone was dropped freely in a river flowing down a bridge. The stone takes 2 seconds in touching the water surface. The height of the bridge is**

1) 9.8 m

2) 19.6 m

3) 39.2 m

4) Data inadequate

**Ans:-** 2) 19.6 m

**1 micron is equal to**

1) 0.1 mm

2) 0.01 mm

3) 0.001 mm

4) 0.0001 mm

Ans:- 3) 0.001 mm

**The most abundant gas found in earth’s atmosphere is**

1) Oxygen

2) Carbon dioxide

3) Hydrogen

4) None of these

Ans:- 1) Oxygen

**The Chemical formula of Caustic Soda is**

1) Na(OH)_{2}

2) Na_{2}CO_{3}

3) NaOH

4) NaC*l*

**Ans:- **3) NaOH

**Air cooler will be most effective in**

1) Kolkata

2) Guwahati

3) Puri

4) New Delhi

**Ans:- **4) New Delhi

**A certain distance was covered at a certain speed. If half of the distance is covered in twice time, the ratio between new speed and original speed is**

1) 1 : 2

2) 1 : 4

3) 2 : 1

4) 4 : 1

**Ans:- **2) 1 : 4

**The number of electrons in Na**^{+}is-

1) 11

2) 10

3) 12

4) 13

**Ans:- **2) 10

**The most electro negative element in the following is**

1) F

2) C*l*

3) Br

4) I

**Ans:- **1) F

**Rh factor is related to**

1) Blood Transfusion

2) Atmospheric Pressure

3) Blood Pressure

4) Space

**Ans:- **1) Blood Transfusion

**A force of 50N acts on a body and moves the body on a straight path to a distance of 4 metres. Find the work done if the force acts at an angle of 60 with horizontal.**

1) 100J

2) 300J

3) 10J

4) 200J

**Ans:- **1) 100J

**The length of pendulum is reduced to one fourth. Its time period will be**

1) Twice

2) Eight times

3) Half

4) None of these

**Ans:- **3) Half

**An element which changes the rate of a chemical reaction but does not undergo any change in itself, is called**

1) Electrolyte

2) Catalyst

3) Lubricant

4) Litmus

**Ans:- **2) Catalyst

**At constant temperature the volume of a given mass of a gas is inversely proportional to the pressure. It is known as**

1) Charles’ Law

2) Boyle’s Law

3) Avogadro’s Law

4) Dalton’s Law

**Ans:- **2) Boyle’s Law

**The resistance of an electric circuit/ implement is measured by**

1) Meggar

2) Ammeter

3) Ohm-meter

4) None of these

**Ans:- **3) Ohm-meter

**Solenoid is a**

1) Shaft

2) Hollow tube

3) Tube on which wire is coiled

4) Cell

**Ans:- **3) Tube on which wire is coiled

**At a uniform accleration which of the motion equations is correct**

1) v = u – at

2) v = u + at

3) s = ut – ½ at^{2}

4) u = v + at

**Ans:- **2) v = u + at

**A body starts from rest at an acceleration of 2m/sec*2. The distance covered by the body in 2 seconds is**

1) 2 m

2) 8 m

3) 4 m

4) 1 m

**Ans:- **3) 4 m

**The c.g.s. unit of density is**

1) gm/cm^{3}

2) gm/cm^{2}

3) gm/cm

4) kg/cm^{3}

**Ans:- **1) gm/cm^{3}

**When a body is partially of fully immersed in a liquid it experiences a loss in its weight that is equal to the weight of liquid displaced by its immersed part. This principle is of**

1) Boyle

2) Pascal

3) Terricelli

4) Archimedes

**Ans:- **4) Archimedes

**The unit of force in cgs unit is**

1) Newton

2) Dyne

3) ms^{-2}

4) K

**Ans:- **2) Dyne

**Humidity in the atmosphere is measured by**

1) Hydrometer

2) Hygrometer

3) Manometer

4) Pyrometer

**Ans:- **2) Hygrometer

**Density of pure water at 4°C is**

1) 100 kg./m^{2}

2) 1000 kg/m^{3}

3) 1000 gm/cm^{3}

4) 1000 gm/cm^{2}

**Ans:- **2) 1000 kg/m^{3}

**Momentum, mass and velocity are related as**

1) Momentum = mass/velocity

2) Momentum = mass × velocity

3) Velocity = mass × momentum

4) Mass = momentum × velocity

**Ans:- **2) Momentum = mass × velocity

**1 second is …… part of a mean solar day.**

1) 1/84600

2) 1/85000

3) 1/86400

4) 1/80000

**Ans:- **3) 1/86400

**The unit of Young’s Modulus of Elasticity in MKS system is-**

1) Nm-2

2) N/cm^{2}

3) Dynes/cm

4) Dynes/cm^{2}

**Ans:- **1) Nm-2

**The property of a metal which reduces its strength when it is subjected to reversal of stress is called**

1) Fatigue

2) Creep

3) Resilience

4) Elasticity

**Ans:- **1) Fatigue

**Melting point of cast iron (in °C) is in the range of**

1) 1150-1300

2) 1800-1900

3) 1450-1600

4) 600-700

**Ans:- **3) 1450-1600

**The buckling loads depend upon**

1) slenderness ratio

2) cross-sectional area

3) modulus of elasticity

4) All of the above

**Ans:- **4) All of the above

**‘Anvil’ is used in the work of**

1) Forging

2) Welding

3) Fitting

4) Machining

**Ans:- **2) Welding

**In an electrical circuit resistance is 55 Ohms and current 4 amperes. What is voltage?**

1) 220V

2) 13.75V

3) 0

4) 110V

**Ans:- **2) 13.75V

**Bell metal contains Cu and….**

1) A*l*

2) Sn

3) Zn

4) Ni

**Ans:- **2) Sn

**To produce flat surfaces by a reciprocating type of machine tool is called**

1) Lathe

2) Shaper

3) Drill

4) Milling

**Ans:- **1) Lathe

**Which is the most elastic material?**

1) Rubber

2) Timber

3) Plastic

4) Steel

**Ans:- **4) Steel

**Which of the following has the highest Poisson’s ratio?**

1) Steel

2) Copper

3) Aluminium

4) Rubber

**Ans:- **1) Steel

**D.C. Generator works on the basis of**

1) Faraday’s law of e.m.induction

2) Ohm’s law

3) Lenz’s law

4) Newton’s law

**Ans:- **1) Faraday’s law of e.m.induction

**When x = 2, the value of (0.5 – 1/x) =?**

1) 1.5

2) -1.5

3) 0.5

4) 0

**Ans:- **4) 0

**What number has to be added to the terms of 3 : 5 to make the ratio 5 : 6?**

1) 13

2) 7

3) 12

4) 6

**Ans:- **2) 7

**Find the value of {8-2 X 8-2/8+2 X 5}**

1) 3

2) 2

3) 6

4) 4

**Ans:- **2) 2

**The sum of three consecutive numbers is 18; find the sum of the next three consecutive numbers?**

1) 24

2) 30

3) 27

4) 35

**Ans:- **3) 27

*l*og5 125 = x; x =?

1) 25

2) 3

3) 2

4) 5

**Ans:- **2) 3

**Find the value of x in (2**^{2}) 1/3 (2X +1/2) = 2^{-5}

1) – 4

2) +4

3) -2

4) +2

**Ans:- **1) – 4

**A two digit number is 7 times the sum of its two digits. The number that is formed by reversing its digits is 18 less than the original number. What is the number?**

1) 52

2) 42

3) 62

4) 27

**Ans:- **2) 42

**A sum of money becomes Rs. 20,925 in 2 years and Rs. 24,412.50 in 5 years. Find the rate of interest and the sum of money**

1) 8%, Rs.17,560

2) 6.25%, Rs.18,600

3) 7%, Rs.18,000

4) 6.75%, Rs.17,775

**Ans:- **2) 6.25%, Rs.18,600

**Find the sum fraction which becomes ½ when denominator is increased by 4; the same fraction becomes 1/8 when the numerator is reduced by 5.**

1) 3/5

2) 5/8

3) 6/8

4) 8/12

**Ans:- **3) 6/8