Civil Engg. JE Exams: Technical Quiz 42

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Question 1

Two wires AO and BO support a vertical load W at O as shown in the figure below. The wires are of equal length and equal cross sectional area. The tension in each wire is equal to:

• AW/2
• BW
• C2W
• DW/2

Question 2

A bucket of water weighing 10 kg is pulled up from a 20 m deep well by a rope weighing 1 kg/m length, then the work done is __________.

• A200 kg-m
• B400 kg-m
• C500 kg-m
• D600 kg-m

Question 3

The velocity of the satellite in an orbit close to earth’s surface depends on _________.

• Aradius of the orbit only
• Bacceleration due to gravity only
• Csquare root of product of radius of the orbit and acceleration due to gravity
• Dproduct of radius of the orbit and gravitational constant

Question 4

A ball is thrown up. The sum of kinetic and potential energies will be maximum at

• Aground
• Bhighest point
• Cin the centre while going up
• Dat all points

Question 5

According to Bernoulli’s principle in fluid dynamics, for inviscid flow, increase in speed of fluid leads to which of the following?

• AIncrease in pressure and/or increase in fluid’s potential energy
• BDecrease in pressure and/or increase in fluid’s potential energy
• CIncrease in pressure and/or decrease in fluid’s potential energy
• DDecrease in pressure and/or decrease in fluid’s potential energy

Question 6

The difference of absolute pressure and local atmospheric pressure is known as _______.

• ANegative pressure
• BPositive pressure
• CGauge pressure
• DHydraulic pressure

Question 7

Specific gravity is defined as the ratio of density of fluid and density of water at which temperature (in C)?

• A0
• B100
• C4
• Dit is not dependent on temperature

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