Mechanical Technical

If you are carrying this glass of softdrink while riding a bus accelerating in the direction of the arrow, which of the following BEST represents the shape of cross-section of the water surface in the glass?

• A

• B

• C

• D

Answer explanation

General Rule

The shape is opposite to the direction of movement.

In general, if an object is speeding up, its acceleration will be in the same direction as its motion

The efficiency and work ratio of a simple gas turbine cycle are

• Low

• Very low

• High

• Very high

The amount of heat required to raise the temperature of the unit mass of gas through one degree at constant volume, is called

• Specific heat at constant volume

• Specific heat at constant pressure

• Kilo Joule

• None of these

You have 10 users plugged into a hub running 10Mbps half-duplex. There is a server connected to the switch running 10Mbps half-duplex as well. How much bandwidth does each host have to the server?

• 100 kbps

• 1 mbps

• 2 mbps

• 10 mbps

The shape of the bending moment diagram over the length of a beam, having no external load, is always

• Linear

• Parabolic

• Cubical

• Circular

A voltage will influence current only if the circuit is:

• Open

• Insulated

• High resistance

• Closed

A voltmeter is used:

• To measure current

• In series with the circuit

• In parallel with the circuit

• To measure coulombs

Which voltage source converts chemical energy to electrical energy?

• Electrical generator

• Battery

• Solar Cell

• Electronic power supply

Cannot pass through vacuum

• Cannot pass through vacuum

• Travel in a straight line

• Can be reflected by a mirror

• Both travel in a straight line and can be reflected by a mirror

Thermal conductivity of water ________ with rise in temperature.

• Remains the same

• Decreases

• Increases

• May increase or decrease depending upon temperature