Home
Current Affairs January 2024

What is the correct answer?

4

A 2 kg object weighs 1.8 kgf on a spring balance. The value of 'g' at that location in m/sec2 is

A. 8.82

B. 9.81

C. 10.88

D. 0.95

Correct Answer :

A. 8.82


Related Questions

What is the correct answer?

4

Hot extrusion process is not used for making

A. Cast iron pipe for domestic water supply

B. Aluminium curtain rods

C. Stainless steel tubes used in furnitures

D. Any of these

What is the correct answer?

4

Chlorine acts as a bleaching agent only in the presence of

A. Dry air

B. Pure oxygen

C. Moisture

D. Sunlight

What is the correct answer?

4

Tin based white metals are used, where bearings are subjected to

A. High pressure & load

B. Low pressure & load

C. High temperature

D. Large surface wear

What is the correct answer?

4

An abrupt and sudden fall in the reading of barometer is an indication of the

A. Storm

B. Rain

C. Clear weather

D. Cold wave

What is the correct answer?

4

Which of the following processes follows the hardening process for reducing the hardening strains & increasing the toughness of the steel part?

A. Anodising

B. Tempering

C. Carburising

D. Annealing

What is the correct answer?

4

Temperature attained in soldering of metals is about __________ °C.

A. 150-300

B. 400-500

C. 650-800

D. 1000-1100

What is the correct answer?

4

__________ property of a material is determined by the Herbert Pendulum device.

A. Hardness

B. Tensile

C. Toughness

D. Compressive

What is the correct answer?

4

Fibre reinforced plastic (FRP) are

A. Made of glass fibre and thermoplastic resins

B. Anisotropic

C. Made of thermosetting resin and glass fibre

D. Both 'b' & 'c'

What is the correct answer?

4

Basicity of the slag in Indian blast furnace is in the range of

A. 0.7-1.0

B. 1.1-1.4

C. 1.5 - 1.8

D. 2.0 - 2.5

What is the correct answer?

4

Production of a hollow product by inflation of a tube or parison is called the __________ process.

A. Blow moulding

B. Calendaring

C. Extrusion

D. Injection

What is the correct answer?

4

Which of the following is a boiler accessory
i.e., not a boiler mounting?

A. Blow off cock

B. Feed check valve

C. Feed water pump

D. Stop valve

What is the correct answer?

4

Silicon crystal can be converted to p-type semiconductor by doping with

A. Phosphorous

B. Nitrogen

C. Carbon

D. Boron

What is the correct answer?

4

The malleability of a material is the property by virtue of which it can be rolled or hammered into thin sheets. Which of the following materials has the maximum malleability?

A. Lead

B. Copper

C. Aluminium

D. Wrought iron

What is the correct answer?

4

An alloy of Fe - 0.4 % C is

A. Cast iron

B. Hypo-eutectoid steel

C. Hyper-eutectoid steel

D. Eutectoid steel

What is the correct answer?

4

Primary designation of steel is based on its

A. Hardness & tensile strength

B. Carbon content

C. Iron content

D. Alloying elements content

What is the correct answer?

4

Function of gear box is to

A. Reduce the speed

B. Obtain variable speed

C. Increase the speed

D. Produce high torque

What is the correct answer?

4

The heat of neutralisation remains constant, when there is a reaction between dilute solutions of strong

A. Base and strong acid

B. Base and weak acid

C. Acid and weak base

D. None of these

What is the correct answer?

4

A solid aluminium ball, when quenched in a water bath maintained at 40°C, cools down from 550°C to 450°C in 20 seconds. The expected temperature of the ball after next 20 seconds may be about __________ °C.

A. 370

B. 340

C. 320

D. 300

What is the correct answer?

4

Velocity of a gas in sound is not proportional to (where, T = Absolute temperature of the gas. P = Absolute pressure of the gas. y = Ratio of specific heats (Cp/Cv) ρ = specific weight of the gas)

A. √T

B. 1/√P

C. √y

D. 1/√ρ

What is the correct answer?

4

What is the pH of distilled water?

A. 0

B. 1

C. 7

D. 14

What is the correct answer?

4

Transformer cores are normally made from

A. Soft ferrites

B. High purity iron

C. Grain oriented Fe-Si alloy

D. Al-Ni-Co alloy

What is the correct answer?

4

If Reynolds number is greater than 1, then the

A. Viscous force is larger than the inertia force

B. Inertia force is larger than the viscous force

C. Inertia force is larger than the surface tension force

D. Inertia force is larger than the gravitational force

What is the correct answer?

4

The most detrimental impurity in high pressure boiler feed water is

A. Suspended salt

B. Dissolved salt

C. Silica

D. Turbidity

What is the correct answer?

4

Sacrificial anode method is used in the protection of pipelines which are buried underground. Sacrificial anode

A. Occurs higher in the electro-chemical series of metals

B. Is exemplified by magnesium plate

C. Is much cheaper than the cathodic base material to be guarded against corrosion

D. All (A), (B) & (C)

What is the correct answer?

4

Alcohols are not suitable as diesel engine fuel because the cetane number of alcohols is

A. Very low which prevents their ignition by compression

B. Very high which prevents their ignition by compression

C. Zero

D. None of these

What is the correct answer?

4

The minimum carbon content in steel should be __________ percent for it to respond to a hardening treatment.

A. 0.2

B. 0.4

C. 0.6

D. 0.8

What is the correct answer?

4

Enzymes belong to the category of

A. Proteins

B. Carbohydrates

C. Vitamins

D. Fats

What is the correct answer?

4

Nickel is a __________ material.

A. Ferromagnetic

B. Semi-conductor

C. Paramagnetic

D. Ferroelectric

What is the correct answer?

4

Recrystallisation temperature of steel is __________ °C.

A. 50

B. 300

C. 500

D. 800

What is the correct answer?

4

Steam condenser tubes are made of admiralty brass, in which percentage of zinc & copper are __________ respectively.

A. 70 & 30

B. 30 & 70

C. 50 & 50

D. 90 & 10