ZONE TECH Objective Questions Series | ZONE TECH

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Questions

The relative humidity h is a measure of air's capacity, at its existing temperature, to absorb further moisture, and is defined by the relation

Where; e = Vapour pressure

e_s = Saturation vapour pressure
Which one of the following points should be kept in mind while selecting the site for a rain gauge station?
Consider the following with respect to double mass curve:

1. Plot of accumulated rainfall with respect to time in chronological orders.

2. Plot for estimating multiple missing reainfall data.

3. Plot for checking the consistency of the rainfall data.
4. Plot of accumulated annual rainfall of a station vs. accumulated rainfall of a group of data.

Which of these statements are correct?

Match List-I (Type of preciptation) with List-II (Principal causel) and select the correct answer using the codes given below the lists:

List-I	List-II
A. Convective	1. Atmospheric disturbance
B. Cyclonic	2. Mountain barrier
C. Frontal	3. Pressure difference
D. Orographic	4. Temperature difference
	5. Warm & cold air masses

Match the following with respect to types of precipitation.

1.	Sleet	a.	It is ice coating formation when rain or drizzle comes in contact with cold object on the ground.
2.	Glaze	b.	It is a showery precipitation in the form of irregular pellets or lumps of ice of size more than 8 mm.
3.	Hail	c.	They are frozen raindrops of transparent grains that are formed when rain falls through air at a sub-freezing temperature.

Match List-I with List-II and select the correct answer using the codes given below the lists:

List-I	List-II
A. Disintegration of aggregates due to weathering	1. Attrition
B. The removal of material from the surface of the road by grinding action	2. Crushing
C. Mutual rubbing or grinding within the mass under the action of traffic	3. Soundness
D. Breaking up of road surface layer through cracking into irregular shaped areas	4. Abrasion
	5. Impact

Identify the incorrect pair(s) from the following with respect to the minimum road way width in a mountainous and steep terrain

Road Type	Minimum Road Way Width
1. Single-lane major district roads	5.75 m
2. Single-lane other district roads	4.75 m
3. Single-lane village roads	4.75 m

Match List-I (Pavement deficiency) with List-II (Explanation)

List-I	List-II
A. Bird baths	1. A steep-sided, bowl shaped cavity caused by loss of surface as well as base course erosion
B. Pot holes	2. Deformations which may be caused by localized or variable subgrade failure
C. Raveling	3. Irregular deformations which may be the result of differential settlement
D. Subsidence	4. Removal of larger surface aggregates leaving craters
	5. Abrupt lowering of the road surface due to poor drainage

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